Early ecological security warning of cultivated lands using RF-MLP integration model: A case study on China's main grain-producing areas
作者：
Zou, Shangjun;Zhang, Lu;Huang, Xiao;Osei, Frank B.;Ou, Guoliang
期刊：
Ecological Indicators ,2022年141:109059 ISSN：1470-160X
通讯作者：
Zhang, Lu(zhanglu54522@126.com)
作者机构：
[Zou, Shangjun] Huazhong Univ Sci & Technol, Coll Publ Adm, Wuhan 430074, Peoples R China.;[Zhang, Lu] Cent China Normal Univ, Coll Publ Adm, Wuhan 430079, Peoples R China.;[Huang, Xiao] Univ Arkansas, Dept Geosci, Fayetteville, AR 72701 USA.;[Osei, Frank B.] Univ Twente, Fac Geoinformat Sci & Earth Observat ITC, NL-7500 AE Enschede, Netherlands.;[Ou, Guoliang] Shenzhen Polytech, Sch Construct & Environm Engn, Shenzhen 518055, Peoples R China.
通讯机构：
[Lu Zhang] C;[Guoliang Ou] S;School of Construction and Environmental Engineering, Shenzhen Polytechnic, 518055 Shenzhen, China<&wdkj&>College of Public Administration, Central China Normal University, Wuhan 430079, China
关键词：
Cultivated land ecological security;Early warning;Random forest;Multi-layer perceptron;Main grain-producing areas
摘要：
The evaluation and early warning of the ecological security of cultivated land are crucial to food security and social stability in the post-epidemic era. In this study, we construct a cultivated ecological security assessment index system based on the pressure-state-response (PSR) model in the main grain-producing areas of China. The entropy method and the multi-factor comprehensive weighting method are used to evaluate the ecological security of the cultivated land in the study area from 2007 to 2018. We propose an integrated model that combines random forest (RF) and multilayer perceptron (MLP), i.e., RF-MLP, to estimate ecological security levels of cultivated lands in the study area from 2019 to 2028. We also present specific policy suggestions to improve the ecological status of cultivated lands. We found that: (1) the ecological security index (E index) of cultivated land showed an overall upward trend from 0.6379 in 2006 to 0.7754 in 2018, despite the fact that this increasing pattern was not considerably strong. The warning situation was changed from medium warning to light warning. The warning levels present a notable spatial imbalance, with higher warning levels occurring in the northern provinces. (2) From 2019 to 2028, although the E index of cultivated land in the main grain-producing areas is expected to be further improved, its values are between 0.7 and 0.8, with most provinces lying in the light warning grades. During the forecasting period, the spatial pattern of the warning situations is stable. In some regions, e.g., North and Northeast China, the cultivated land ecology is expected to be developed towards a positive direction. Although the ecological security of cultivated land in the middle and lower reaches of the Yangtze River region is generally satisfactory, the E index presents a declining trend, thus demanding further attention. The results from this study are expected to benefit decision-makers in designing mitigating strategies for better ecological security management and maintenance of cultivated lands in China's main grain-producing areas. © 2022 The Author(s)
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A conservation planning framework for China’s national key ecological function area based on ecological risk assessment
作者：
Pan, Fangjie;Song, Mingjie;Wan, Qing;Yuan, Lanlan
期刊：
Environmental Monitoring and Assessment ,2022年194(2):74 ISSN：0167-6369
通讯作者：
Song, Mingjie(smingjie@mail.ccnu.edu.cn)
作者机构：
[Wan, Qing; Pan, Fangjie] Wuhan Inst Technol, Sch Management, Wuhan 430205, Peoples R China.;[Song, Mingjie] Cent China Normal Univ, Coll Publ Adm, Wuhan 430079, Peoples R China.;[Yuan, Lanlan] Wuhan Real Estate Registrat Ctr, Wuhan 430015, Peoples R China.
通讯机构：
[Song, M.] C;College of Public Administration, Central China Normal University, Wuhan, China
关键词：
Anthropogenic stressors;Conservation and development;Ecosystem services;Natural stressors
摘要：
National Key Ecological Functions Areas (NKEFAs) in China perform critical ecological functions and play a key role in ensuring the ecological safety of a large region or the whole country. Conservation planning in NKEFAs needs to scientifically locate conservation areas and development sites to support the “globally conserved, locally developed” strategy. However, popular conservation planning approaches often underestimate the impacts of natural and anthropogenic stressors and thus fail to handle the conflicts between conservation and development goals. This article proposes a conservation planning framework (CP-NKEFA) to overcome the limitations of popular conservation planning approaches and fulfill the conservation planning requirements of China’s NKEFAs. Conservation planning is converted to an ecological risk assessment problem to integrate natural and anthropogenic stressors analysis with ecosystem service (ES) evaluation. The framework clarifies stressor types and quantifies stressor risks and ES importance to set conservation, development, and buffer zones. As a case study, the framework was implemented in Changyang County, China, an NKEFA for water and soil retention in the Three Gorges Reservoir Region. The framework is more useful than typical ecological redline zoning for instructing conservation and development spatial arrangement with a multi-category zoning scheme. The zoning results protect the areas vulnerable to natural and anthropogenic stressors or significant for ES provisions. Furthermore, the buffer zone prevents direct impacts of human activities on conservation areas and permits trade-offs between conservation and development goals. Except for NKEFAs, the framework also applies to conservation planning in other areas where conservation and development goals must be handled. © 2022, The Author(s), under exclusive licence to Springer Nature Switzerland AG.
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The effects of land transfer marketization on the urban land use efficiency: An empirical study based on 285 cities in China
作者：
Jiang, Xu* ;Lu, Xinhai;Liu, Qi;Chang, Cheng;Qu, Lulu
期刊：
Ecological Indicators ,2021年132:108296 ISSN：1470-160X
通讯作者：
Jiang, Xu
作者机构：
[Jiang, Xu; Qu, Lulu] Chongqing Univ, Sch Publ Policy & Adm, 174 Rd Shazheng, Chongqing 400044, Peoples R China.;[Lu, Xinhai] Cent China Normal Univ, Coll Publ Adm, Wuhan 430079, Peoples R China.;[Chang, Cheng; Liu, Qi] Huazhong Univ Sci & Technol, Coll Publ Adm, Wuhan 430074, Peoples R China.
通讯机构：
[Jiang, Xu] C;Chongqing Univ, Sch Publ Policy & Adm, 174 Rd Shazheng, Chongqing 400044, Peoples R China.
关键词：
Land transfer marketization;Urban land use efficiency;DEA;Spatial Durbin model;China
摘要：
The market-oriented allocation reform of urban land resources has become an important component of economic system reform in China, while its objective impact on land use efficiency still remains uncertain and needs to be revealed somehow. Based on the panel data of 285 cities in China from 2003 to 2015, this study uses the DEA method to measure the urban land use efficiency firstly, and then the spatial Durbin model is adopted to examine the spatial effects of land transfer marketization on urban land use efficiency in China. The results show that land transfer marketization can significantly improve urban land use efficiency of the local region at 0.16% on the one hand, while on the other hand it has an inhibitory effect on urban land use efficiency of the spatial related regions at a relatively higher level of 0.17%. Besides, there exists club convergence of the urban land use efficiency of sample cities in China. As for other variables affecting the urban land use efficiency spatially, economic development level, industrial structure and population scale have a significantly promoting effect at the level of 0.1263, 0.1667 and 0.1735 respectively, while infrastructure level and opening degree may have an inhibitory effect because of their irreconcilable stages, though most of them failed the significance test. On the basis of these theoretical and empirical analyses, some policy recommendations such as adhering to the market-oriented land transfer policy, strengthening the communication and coordination mechanism between regions are provided to policymakers in order to make the most use of land resources. © 2021
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How urban sprawl influences eco-environmental quality: Empirical research in China by using the Spatial Durbin model
作者：
Chen, Danling;Lu, Xinhai;Hu, Wenbo;Zhang, Chaozheng* ;Lin, Yaoben
期刊：
Ecological Indicators ,2021年131:108113 ISSN：1470-160X
通讯作者：
Zhang, Chaozheng
作者机构：
[Chen, Danling; Hu, Wenbo; Zhang, Chaozheng] Huazhong Agr Univ, Coll Publ Adm, Dept Land Management, Wuhan, Peoples R China.;[Chen, Danling] Huazhong Agr Univ, Inst Ecol & Environm Econ, Wuhan, Peoples R China.;[Lu, Xinhai] Cent China Normal Univ, Coll Publ Adm, Dept Land Management, Wuhan, Peoples R China.;[Lu, Xinhai] Huazhong Univ Sci & Technol, Coll Publ Adm, Dept Land Management, Wuhan, Peoples R China.;[Lin, Yaoben] Nanjing Tech Univ, Sch Law & Publ Affairs, Dept Publ Management, Nanjing, Peoples R China.
通讯机构：
[Zhang, Chaozheng] H;Huazhong Agr Univ, Coll Publ Adm, Dept Land Management, Wuhan, Peoples R China.
关键词：
Environment management;Urban sprawl;Eco-environmental quality;Spatial Durbin model;China
摘要：
Rapid urban sprawl in China has caused serious eco-environmental changes, and thus attracted significant attention of the international academic circles. However, the mechanism of influence of urban sprawl on eco-environmental quality has not been addressed adequately. The main objective of this study was to fill this gap by theoretically and empirically studying how urban sprawl influences eco-environmental quality, based on the Spatial Durbin model and on a panel data covering 30 provinces of mainland China during the period 2003–2018. The results show that China's urban sprawl has significantly decreased the eco-environmental quality under both geographical and economic weight matrices. Moreover, the spillover effect played an essential role in investigating the influence of urban sprawl on eco-environmental quality. From the perspective of regional differences, the direct accumulation effect and the spatial spillover effect involved in the impact of urban sprawl on eco-environmental quality varied across the central, western, and northeast regions. The results of decomposition of urban sprawl into its component parts indicate that population sprawl, socio-economic sprawl, transportation sprawl, and land use sprawl can explain the change of eco-environmental quality in China to varying degrees. During the study period, land use sprawl exhibited the greatest effect on eco-environmental quality, followed by socio-economic sprawl, population sprawl, and transportation sprawl. The government should actively coordinate the development of different types of urban sprawl, thus increasing eco-environmental quality across different regions. © 2021 The Authors
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Evaluating the spatial spillover effect of farmland use transition on grain production – An empirical study in Hubei Province, China
作者：
Tang, Yifeng;Lu, Xinhai
（ ;Yi, Jialin;Wang, Hongzheng;Zhang, Xupeng;...
期刊：
Ecological Indicators ,2021年125:107478 ISSN：1470-160X
通讯作者：
Lu, Xinhai(xinhailu@163.com)
作者机构：
[Lu, Xinhai; Wang, Hongzheng; Tang, Yifeng; Zhang, Xupeng] Huazhong Univ Sci & Technol, Coll Publ Adm, Wuhan 430074, Peoples R China.;[Lu, Xinhai] Cent China Normal Univ, Coll Publ Adm, Wuhan 430079, Peoples R China.;[Yi, Jialin] Nanjing Agr Univ, Coll Land Management, Nanjing 210095, Peoples R China.;[Zheng, Weibo] Colorado State Univ, Dept Human Dimens Nat Resources, Ft Collins, CO 80523 USA.
通讯机构：
[Xinhai Lu; Xupeng Zhang] C;College of Public Administration, Huazhong University of Science and Technology, Wuhan 430074, China<&wdkj&>College of Public Administration, Central China Normal University, Wuhan 430079, China<&wdkj&>College of Public Administration, Huazhong University of Science and Technology, Wuhan 430074, China
关键词：
Farmland use transition;Grain production;Topographical constraints;Spatial spillover effect;Hubei province
摘要：
Farmland resources are the most basic material for grain production. Therefore, the impact of farmland use transition (FUT) on grain production is receiving increasing attention from scholars. However, only a few studies have explored the spatial spillover effects of FUT on grain production and investigate the impact difference under topographical constraints. To fill this gap, this study uses county-level panel data of farmland use and grain production in Hubei Province from 2005 to 2017 and constructs a spatial econometric model to investigate the spatial spillover effects of FUT on grain production at the macro level and different topographical areas. The conclusions are as follows. (1) In the entire Hubei Province, there is a positive spatial spillover effect on grain production in the counties, and the spatial spillover effect is mainly driven by transition of the farmland quantity, machinery input, and farmland irrigation infrastructure input. (2) The topographical constraints lead to the heterogeneity of the spatial spillover effects of FUT on grain production. In plain areas, the spatial spillover effects of grain production mainly depend on transition of farmland quantity, machinery, fertilizers, and farmland irrigation infrastructure input. In hilly-mountainous areas, labor input is the main factor that affects grain production. (3) This study concludes that promoting the coordinated development of regional farmland use and grain production is one of the effective ways to achieve food security. Therefore, policy makers should formulate agricultural support policies based on the trends of FUT in different topographical areas. © 2021 The Author(s)
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Evaluation the effect of cultivated land protection policies based on the cloud model: A case study of Xingning, China
作者：
Lu, Xinhai;Zhang, Yanwei* ;Zou, Yucheng
期刊：
Ecological Indicators ,2021年131 ISSN：1470-160X
通讯作者：
Zhang, Yanwei
作者机构：
[Lu, Xinhai; Zhang, Yanwei] Huazhong Univ Sci & Technol, Coll Publ Adm, Wuhan 430074, Peoples R China.;[Lu, Xinhai] Cent China Normal Univ, Coll Publ Adm, Wuhan 430079, Peoples R China.;[Zou, Yucheng] Cent South Univ, Sch Business, Changsha 410083, Peoples R China.
通讯机构：
[Zhang, Yanwei] H;Huazhong Univ Sci & Technol, Coll Publ Adm, Wuhan 430074, Peoples R China.
关键词：
AHP–entropy method;Cloud model;Cultivated land protection policy;Effect evaluation
摘要：
The evaluation of the effects of cultivated land protection policies (CLPP) is an important issue in China's food security and land policy regulation. This article first analyzes the historical evolution of CLPP in China and divides it into five stages. Based on this, this paper proposes a CLPP implementation effect evaluation framework based on the perspective of farmers’ perception. Taking Xingning City, Guangdong Province as the research area, the AHP-entropy method and cloud model are used to evaluate the regional CLPP implementation effect. Results show that the comprehensive effect of CLPP is between 'middle' and 'good,' and specifically close to the 'good' level. After the implementation of CLPP, its ecological management and protection, agricultural production enthusiasm, and farmers’ satisfaction levels are generally at a medium or low level, and only the amount of cultivated land protection is at a medium to high level. Therefore, the formulation of CLPP in the future needs to start from the perspective of improving the comprehensive interests of farmers and enhance the focalization of policies. The cloud model realizes the uncertainty mapping of each evaluation index, takes into account the randomness and ambiguity of evaluation index quantification and grade division, and makes the evaluation result objective. This research method can serve as a reference for relevant land use policy evaluation. © 2021 The Authors
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英文
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Can the use of government Apps shape citizen compliance? The mediating role of different perceptions of government
作者：
Wang, Ge;Chen, Qiang;Xu, Zengyang* ;Leng, Xiangming
期刊：
Computers in Human Behavior ,2020年108:106335 ISSN：0747-5632
通讯作者：
Xu, Zengyang
作者机构：
[Leng, Xiangming; Wang, Ge; Xu, Zengyang] Cent China Normal Univ, Coll Publ Adm, Wuhan, Peoples R China.;[Chen, Qiang] Xi An Jiao Tong Univ, Sch Journalism & New Media, Xian, Peoples R China.;[Leng, Xiangming; Xu, Zengyang] Res Ctr Hubei Local Governance & Local Dev, Wuhan, Peoples R China.;[Xu, Zengyang] 152 LuoYu Rd, Wuhan 430079, Hubei, Peoples R China.
通讯机构：
[Xu, Zengyang] 1;152 LuoYu Rd, Wuhan 430079, Hubei, Peoples R China.
关键词：
Citizen compliance;Government App;Government social media;Perceptions of government
摘要：
Although government applications (Apps) have developed rapidly in recent years, few studies have paid attention to the consequences of government App use on citizen compliance. In response to this gap, this study divides citizens' government App use into informational use, service use and participatory use, and explores the impact of such use on citizen compliance, and the mediating role of trust in government, government transparency and government reputation on that relationship, by conducting a study of citizens in Guangzhou, Wuhan and Chengdu. The findings confirm that the service use and participatory use of government Apps positively predict trust in government and government reputation to varying degrees, while any one type of government App use cannot directly influence citizen compliance. This study also reveals the mediating mechanism of different perceptions of government on different types of government App use and citizen compliance, confirms the single mediation pathway to be the most effective pathway, and trust in government to be the most important mediator in the mediating process. Our findings further demonstrate that deep m-government usage behaviors under the condition of more sophisticated digital services and higher levels of government-citizen interactions can not only play a more effective role in promoting trust in government and government reputation, but also exert a potential impact on citizen compliance. © 2020 Elsevier Ltd
语种：
英文
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Study on learning effect prediction models based on principal component analysis in MOOCs
作者：
Zhang, Wei;Qin, Shiming;Yi, Baolin;Tian, Peng*
期刊：
Cluster Computing ,2019年22(6):15347-15356 ISSN：1386-7857
通讯作者：
Tian, Peng
作者机构：
[Zhang, Wei; Yi, Baolin; Qin, Shiming] Cent China Normal Univ, Natl Engn Res Ctr E Learning, Wuhan, Hubei, Peoples R China.;[Tian, Peng] Cent China Normal Univ, Coll Publ Adm, Wuhan, Hubei, Peoples R China.
通讯机构：
[Tian, Peng] C;Cent China Normal Univ, Coll Publ Adm, Wuhan, Hubei, Peoples R China.
关键词：
Predictive models;PCA;Logistic regression algorithm;MOOCs
摘要：
In recent years, the rise and development of massive open online courses (MOOCs) have promoted the boom of online education and also promoted the research on learning analysis and mining based on big data of education. However, while offering a large number of high quality courses, there is also a phenomenon that the overall learning effect is not ideal. How to make effective use of MOOCs for teaching activities poses urgent practical requirements for educators and researchers. MOOCs store massive learners’ learning behavior data, and mining these data is of great significance to learners’ learning effects. Due to the deviation caused by the correlation between many behavior indexes, the paper analyze the nine measurable performance indexes by principal component analysis (PCA), and get three principal components factors in order to reduce the computational dimension and increase the comprehensibility, and then obtain a model of learning effect prediction, namely the PCA prediction model (PCA_PM). Logistic regression algorithm has a good fitting effect on behavioral indexes. Therefore, the paper use the logistic regression method to construct another model of learning effect prediction, namely the principal component logistic regression prediction model (PCL_PM), and predictive effects of two models were compared and analyzed. The results show that it is an effective way to help learners to improve the passing rate of the course by establishing the predictive models. The prediction accuracy of both PCA_PM and PCL_PM is high, but overall, the prediction effect of PCA_PM is better. © 2018, Springer Science+Business Media, LLC, part of Springer Nature.
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Measurement of the eco-environmental effects of urban sprawl: Theoretical mechanism and spatiotemporal differentiation
作者：
Chen, Danling;Lu, Xinhai
* （ ;Liu, Xu;Wang, Xue
期刊：
Ecological Indicators ,2019年105:6-15 ISSN：1470-160X
作者机构：
[Lu, Xinhai; Chen, Danling] Huazhong Univ Sci & Technol, Coll Publ Adm, Dept Land Management, Wuhan, Hubei, Peoples R China.;[Lu, Xinhai] Cent China Normal Univ, Coll Publ Adm, Dept Land Management, Wuhan, Hubei, Peoples R China.;[Liu, Xu] Shanghai Jiao Tong Univ, China Inst Urban Governance, Shanghai, Peoples R China.;[Liu, Xu] Shanghai Jiao Tong Univ, Sch Int & Publ Affairs, Shanghai, Peoples R China.;[Wang, Xue] Humboldt Univ, Inst Educ, Cultural Social & Educ Fac, Berlin, Germany.
通讯机构：
[Lu, Xinhai] H;Huazhong Univ Sci & Technol, Coll Publ Adm, Dept Land Management, Wuhan, Hubei, Peoples R China.
关键词：
China;Eco-environmental effects;Pressure-State-Response;Spatial autocorrelation;Urban sprawl
摘要：
Urban sprawl and its eco-environmental impacts are crucial components of global environmental change research, and a core issue for sustainable development. In this study we used a Pressure-State-Response (PSR) system to develop a theoretical framework, in which the total eco-environmental effects of urban sprawl (EEUS) were divided into pressure, state, and response. A corresponding index system was then constructed to evaluate the different kinds of EEUS in China's 30 provinces from 2003 to 2015, and temporal and spatial characteristics are explored through spatial autocorrelation analysis. We found that 1) pressure, state and response EEUS not only had differences but also strong connections. These three kinds of eco-environmental effects also had different causal mechanisms and their contributions to the total EEUS were different. 2) The pressure, state and response, as well as the total EEUS, increased from 2003 to 2015. However, there were clear disparities in EEUS across the eastern, central, western and northeast regions. EEUS results for the eastern and northeast regions were higher than in the central and western regions. 3) There was significant spatial dependence and heterogeneity in EEUS. Overall, the spatial difference in EEUS was mainly caused by “HH” and “LL” cluster types. These results have significant implications for theoretical guidance and policy efforts. We conclude that a better eco-environment in the process of urban sprawl can be achieved by improving the quality of urban development and enhancing government management. © 2019
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英文
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Exploration on the spatial spillover effect of infrastructure network on urbanization: A case study in Wuhan urban agglomeration
作者：
Zeng, Chen* ;Song, Yan;Cai, Dawei;Hu, Peiying;Cui, Huatai;...
期刊：
Sustainable Cities and Society ,2019年47:101476 ISSN：2210-6707
通讯作者：
Zeng, Chen
作者机构：
[Yang, Jing; Zeng, Chen] Huazhong Agr Univ, Dept Land Management, Wuhan 430070, Hubei, Peoples R China.;[Zeng, Chen] Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China.;[Zeng, Chen] Univ Chicago, Ctr Spatial Data Sci, Chicago, IL 60637 USA.;[Song, Yan] Univ N Carolina, Dept City & Reg Planning, Chapel Hill, NC 27515 USA.;[Cai, Dawei] Cent China Normal Univ, Coll Publ Adm, Wuhan 430079, Hubei, Peoples R China.
通讯机构：
[Zeng, Chen] H;Huazhong Agr Univ, Dept Land Management, Wuhan 430070, Hubei, Peoples R China.
关键词：
Spatial spillover effect;Infrastructure construction;Urbanization;Road network;POI
摘要：
In the context of rapid urbanization, the rational spatial distribution of infrastructures, such as road network and public facilities is of great importance for the spatial optimization of infrastructure construction and sustainable regional development. In this study, we explored the spatial spillover influence of infrastructure network on urbanization in road network-based and POI-based hypotheses through spatial modeling in Wuhan urban agglomeration in 2005 and 2015. The global integration values of the road axial lines and Points of Interest (POI) density were used to generate spatial weight matrices by the gravity model to formulate the two hypotheses. The results revealed that local economic factors and the spatial influence of infrastructure both contribute to the changes in urbanization with varying powers in different hypotheses and years. In general, spatial spillover effects from neighbors in the form of road network and point-based facilities have weakened in recent years. However, the comparative magnitude has changed from road network dominated to similar functioning between road network and POI based facilities. It is concluded that the rational utilization of the embedded spatial spillover effect helps to formulate strategies for sustainable urbanization in improving resource use efficiency, achieving balanced development and promoting an integrated urban–rural development.<br/> ©2019
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Examining the associations between urban built environment and noise pollution in high-density high-rise urban areas: A case study in Wuhan, China
作者：
Yuan, Man;Yin, Chaohui* ;Sun, Yi;Chen, Weiqiang
期刊：
Sustainable Cities and Society ,2019年50:101678 ISSN：2210-6707
通讯作者：
Yin, Chaohui
作者机构：
[Yuan, Man] Huazhong Univ Sci & Technol, Sch Architecture & Urban Planning, 1037 Luoyu Rd, Wuhan 430074, Hubei, Peoples R China.;[Yin, Chaohui] Cent China Normal Univ, Coll Publ Adm, 152 Luoyu Rd, Hongshan Dist 430079, Hubei, Peoples R China.;[Sun, Yi] Hong Kong Polytech Univ, Dept Bldg & Real Estate, Hong Kong, Peoples R China.;[Chen, Weiqiang] Henan Agr Univ, Sch Resource & Environm, 63 Agr Rd, Zhengzhou 450000, Henan, Peoples R China.
通讯机构：
[Yin, Chaohui] C;Cent China Normal Univ, Coll Publ Adm, 152 Luoyu Rd, Hongshan Dist 430079, Hubei, Peoples R China.
关键词：
Noise;Land cover;Land use;Urban form;Urban built environment;Wuhan
摘要：
Noise pollution poses negative impacts on public health particularly for urban dwellers as the land use of cities is prone to producing more road traffic and various human activities. Among the existing literature, the pathways linking built environment characteristics and noise level are not sufficiently addressed owing to a variety of complex factors affecting noise in urban areas. This study aims to examine the relationships of urban built environment and noise, using Pearson correlations and multiple linear regressions. Built environmental factors considered for this study consist of land cover, land use, and urban form. Results reveal a significant association between three aspects of urban built environment and noise level. In terms of land cover, forest alleviates noise effectively, while the effect of grassland on noise is far less impactful than forest. High-density and high-rise building areas (HHBA) are two contributors to noise pollution. The spatial layout of residential buildings is more effective in reducing noise level, as compared to the size of the residential lands. In terms of land use, the area proportion of business, open space with hard pavement, industrial, and residential land uses positively influence noise level. In terms of urban form, controlling building density is a key measure in noise reduction. Buildings with larger site coverage and complex shapes are effective in noise reduction. Findings from this study would be very helpful to formulate and implement effective measures for noise pollution mitigation, and ensure sustainable development of urban environment.
语种：
英文
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Integrating ecosystem services value for sustainable land-use management in semi-arid region
作者：
Rao, Yingxue;Zhou, Min;Ou, Guoliang* ;Dai, Deyi;Zhang, Lu;...
期刊：
Journal of Cleaner Production ,2018年186:662-672 ISSN：0959-6526
通讯作者：
Ou, Guoliang
作者机构：
[Rao, Yingxue] South Cent Univ Nationalities, Coll Publ Adm, Wuhan 430074, Hubei, Peoples R China.;[Rao, Yingxue] South Cent Univ Nationalities, Res Ctr Hubei Ethn Minor Areas Econ & Social Dev, Wuhan 430074, Hubei, Peoples R China.;[Zhang, Lu; Zhou, Min] Huazhong Univ Sci & Technol, Coll Publ Adm, Wuhan 430074, Hubei, Peoples R China.;[Ou, Guoliang] Shenzhen Polytech, Sch Construct & Environm Engn, 4089 West Shahe Rd, Shenzhen 518055, Peoples R China.;[Dai, Deyi] CHCIETS, Wuhan 430205, Hubei, Peoples R China.
通讯机构：
[Ou, Guoliang] S;Shenzhen Polytech, Sch Construct & Environm Engn, 4089 West Shahe Rd, Shenzhen 518055, Peoples R China.
关键词：
Land-use management;Ecosystem service value;Multi-objective programming;Semi-arid
摘要：
In this study, an inexact multi-objective optimization model integrated with ecosystem service value was developed for supporting sustainable land-use management in Took Mu Qinqi in the northeast of Inner Mongolia Province, China. It was an attempt to incorporate ecosystem service evaluation model within a general modeling framework in typical semi-arid region. The ecosystem service value was modified according to the development of eco-environment and social economy in Took Mu Qinqi based on the study of land ecosystem service value in China. The modified ecosystem service value provided input parameters for the optimization model. The results showed that the ecosystem service value of grassland was the highest among the six land-use categories, with about 97% and 83% of the total value for East and West Took Mu Qinqi, respectively. It indicated that grassland played an important role in ecosystem service. The results also showed that the total economic benefit produced by the optimal land use pattern increased by [11.5, 12.6], [5.66, 6.36] ×10<sup>12</sup>RMB ¥compared with the current land-use pattern for East, West Took Mu Qinqi, respectively. The total ecosystem service value produced by the optimal land-use pattern also increased by [5.9, 9.1], [3.4, 4.5] ×10<sup>12</sup>RMB ¥compared with that produced by the current land-use pattern for East, West Took Mu Qinqi, respectively. It indicated that the optimal land-use pattern generated by the multi-objective model was better than the current land-use pattern either from the point of economic benefit or from the point of ecological benefit. The optimization model of land-use structure based on ecosystem service value could satisfy the social, economical, and environmental development, which provided a new way to solve the key technical problem in land-use planning in typical semi-arid region.<br/> ©2018 Elsevier Ltd
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城市住宅基准地价的三维可视化与空间形态分析---以武汉市中心城区为例
期刊：
清华大学学报(自然科学版) ,2018年58(10):941-952 ISSN：1000-0054
作者机构：
[卢新海; 张祚; 罗翔] Collage of Public Administration, Central China Normal University, Wuhan, 430079, China;[金贵] School of Resources and Environmental Science, Hubei University, Wuhan, 430062, China;[周敏] College of Public Administration, Huazhong University of Science and Technology, Wuhan, 430074, China
关键词：
基准地价;城市空间结构;土地价格空间形态;数字高程模型;价格天际线
摘要：
为了探索城市住宅用途基准地价的空间形态复杂性与多维度空间可视化表达,采集武汉市中心城区的住宅用途基准地价数据,利用数字高程模型与基于地理信息系统(geographic information system,GIS)的探索性空间分析,实现以基准地价为代理变量来更好地理解城市空间特征与空间结构。结果表明:反距离加权法更适合基准地价“层级梯田状”空间形态的表达;地理中心与“到中心的距离”作为刻画空间的经典变量仍具有不可替代的作用;各侧视角的空间形态与“价格天际线”、从内到外沿环线土地价格分布变化、各典型方向价格拟合曲线反映的梯度都呈现出明显的“中心-边缘”各圈层逐渐下降的趋势,以及城市各扇区间的空间异质性;坡度与坡向特征也进一步印证了土地基准地价高层模型“梯田型”与“环状放射型”的空间形态。
语种：
中文
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The correlation between dual commitment and industrial relations climate: An empirical study
作者：
Dong Nian-nian* ;Yao Ye-shen;Fan Yang-juan;He Pei-huan
期刊：
International Conference on Management Science and Engineering - Annual Conference Proceedings ,2013年:944-950 ISSN：2155-1847
通讯作者：
Dong Nian-nian
作者机构：
[Dong Nian-nian; Fan Yang-juan; Yao Ye-shen] Huazhong Normal Univ, Sch Publ Management, Wuhan 430079, Peoples R China.
通讯机构：
[Dong Nian-nian] H;Huazhong Normal Univ, Sch Publ Management, Wuhan 430079, Peoples R China.
会议名称：
20th International Annual Conference on Management Science and Engineering
会议时间：
JUL 17-19, 2013
会议地点：
Harbin, PEOPLES R CHINA
会议主办单位：
[Dong Nian-nian;Yao Ye-shen;Fan Yang-juan] Huazhong Normal Univ, Sch Publ Management, Wuhan 430079, Peoples R China.
会议论文集名称：
International Conference on Management Science and Engineering-Annual Conference Proceedings
关键词：
organization commitment;union commitment;industrial relations climate;logistic regression analysis
摘要：
This study found a positive correlation between dual commitment and positive industrial relations climate while a negative correlation between dual commitment and negative industrial relations climate according to a questionnaire survey with 610 samples in several Wuhan's private enterprises. With a further research by using the Logistic regression model, the affective commitment, normative commitment in organization commitment as well as the member's affection and member's benefits have a remarkable positive impact on positive industrial relations climate, while economic commitment and choice commitment in organization commitment as well as member's affection and member's benefits have a remarkable negative impact on negative industrial relations climate. This essay is conducive to both a correct understanding of unions for the managers of private enterprises and the creation of a harmonious industrial relations climate for the unions. ©2013 IEEE.
语种：
英文
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