Land Ecological Security Assessment for Bai Autonomous Prefecture of Dali Based Using PSR Model--with Data in 2009 as Case
作者:
Ye Hua;Ma Yan;Dong Limin*
期刊:
Energy Procedia ,2011年5:2172-2177 ISSN:1876-6102
通讯作者:
Dong Limin
作者机构:
[Ma Yan; Dong Limin; Ye Hua] Huazhong Normal Univ, Sch Econ & Management, Wuhan 430079, Peoples R China.
通讯机构:
[Dong Limin] H;Huazhong Normal Univ, Sch Econ & Management, Wuhan 430079, Peoples R China.
会议名称:
International Conference on Energy, Environment and Development (ICEED)
会议时间:
DEC 08-09, 2010
会议地点:
Kuala Lumpur, MALAYSIA
会议主办单位:
[Ye Hua;Ma Yan;Dong Limin] Huazhong Normal Univ, Sch Econ & Management, Wuhan 430079, Peoples R China.
会议论文集名称:
Energy Procedia
关键词:
Dali;land ecological security;PSR model;entropy method;composite index
摘要:
This paper constructs Bai Autonomous Prefecture of Dali's land ecological security assessment index system based on pressure-state-response model, using entropy method and composite index method to evaluate Dali Prefecture's land ecological security' composite index is 0.60823 in 2009, which is in good security condition. Although the whole prefecture's condition stays comparative security, we should realize the economic disparity and land security status varies from city to city. The difficulty of land exploiting, ecological disasters and the vulnerable land ecosystem are also the reality we should face. So how to maintain the present good trend of land resources development with the rapid development of economy and intensified human activities is what the government and policy makers should consider. © 2011 Published by Elsevier Ltd.
语种:
英文
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洱海流域农村面源污染对水环境的影响及其控制对策
作者:
马艳;董利民
期刊:
华中师范大学研究生学报 ,2011年(01):150-153
作者机构:
华中师范大学经济管理学院
关键词:
洱海流域;面源污染;水环境;对策
摘要:
随着经济社会发展、旅游开发、产业结构不合理等因素的影响,洱海流域水环境质量面临着严峻的考验。通过对洱海流域农业污染源的评价分析发现:流域农业面源污染占河流、湖泊营养物负荷总量的70%以上,是洱海最主要的氮磷污染源,其中农业生产带来的化肥和畜禽粪便流失污染已成为流域主要污染源。该文基于洱海流域面源污染特征的综合分析,从农村生活污水控制、畜禽养殖污染防治、种植业污染控制和水土流失治理四个重点领域进行了探讨,并提出了相应的对策。
语种:
中文
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洱海水污染动态模型的构建及分析研究
作者:
董利民;李璇
期刊:
生态经济 ,2011年(02):384-388 ISSN:1671-4407
作者机构:
华中师范大学经济管理学院
关键词:
洱海;水污染;动态模型;清水入湖
摘要:
构建洱海水污染动态模型,并分析洱海水污染状况的三个阶段,揭示出洱海入湖河流的污染浓度超过洱海环境承受力是洱海污染不断恶化的原因。在自由污染阶段,当流入湖泊的污染浓度为常量H时,湖水的污染浓度变化速率与湖水保留时间T成反比;当t→+∞时,无论H>P(0)、H<P(0)、H=P(0)哪一种情况,均有limt→+∞P(t)=H,即水污染浓度最终趋向于H。定义洱海在t时刻的污染水平t=P(t)/H,可计算出洱海达到=0.5所需的时间为2.34年。在无效防治阶段,Pi(t)为单调递增函数,选取N、P为洱海具体污染物浓度代表进行分析,当Pi(t)>P(t)时,湖泊污染浓度将不断增大。在有效防控阶段,Pi(t)为单调递减函数,当Pi(t)<P(t)时,湖泊污染浓度将不断减小;而当Pi(t)→0时,洱海将以最快的速度净化。因此,实现"清水入湖"是防治对策的根本。
语种:
中文
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Technology Design for Controlling Cultivation Contamination in Erhai Basin Based on the Theory of Recycling Economy
作者:
Cao Yiqiong;Xu Qian;Dong Limin*
期刊:
Energy Procedia ,2011年5:2219-2223 ISSN:1876-6102
通讯作者:
Dong Limin
作者机构:
[Cao Yiqiong; Dong Limin; Xu Qian] Huazhong Normal Univ, Sch Econ & Management, Wuhan 430079, Peoples R China.
通讯机构:
[Dong Limin] H;Huazhong Normal Univ, Sch Econ & Management, Wuhan 430079, Peoples R China.
会议名称:
International Conference on Energy, Environment and Development (ICEED)
会议时间:
DEC 08-09, 2010
会议地点:
Kuala Lumpur, MALAYSIA
会议主办单位:
[Cao Yiqiong;Xu Qian;Dong Limin] Huazhong Normal Univ, Sch Econ & Management, Wuhan 430079, Peoples R China.
会议论文集名称:
Energy Procedia
关键词:
Recycling economy;Pollution controlling;Technology design;Medium heat biogas energy technology
摘要:
The pollution situation of which is going to analyzed later, the water resource in Erhai Basin is chosen to be the subject of this research by presenting the technology called the solar medium heat steel form solid-liquid joint fermentation biogas technology, which is based on 3R principle. The aim of this research is to do further improvement in recyclable use of resource, reducible discharge of waste water and also realization of win-win cooperation of society, economy and ecological environment in certain area. © 2010 Published by Elsevier Ltd.
语种:
英文
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基于3R原则的洱源县地热水资源开发利用模式研究
作者:
马艳;董利民
期刊:
湖北农业科学 ,2010年49(10):2609-2613 ISSN:0439-8114
作者机构:
[马艳; 董利民] 华中师范大学经济管理学院
关键词:
循环经济;3R原则;地热水资源;开发利用;模式设计
摘要:
选取云南省洱源县温泉度假区地热水资源为研究对象,通过对其开发利用现状及存在问题的分析,提出基于3R原则的温泉度假区地热水资源开发利用模式,以期进一步提高地热水资源的利用效率,最大限度地减少污水排放,实现区域社会、经济和生态环境的共赢。
语种:
中文
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中国木本油料与生物质能源发展问题研究
作者:
王星懿;董利民
期刊:
江汉论坛 ,2010年(8):24-26 ISSN:1003-854X
作者机构:
[王星懿] 中国人民大学财政金融学院;[董利民] 华中师范大学经济管理学院
关键词:
木本油料;生物能源;能源发展
摘要:
能源是人类社会生存和社会经济发展的基本物质基础,随着世界经济对原油的依赖性不断增强,它已经成为国家经济发展的主要驱动力,备受世界各国政府重视.在石油储量越来越少、能源需求越来越强的形势下,生物质能源以其清洁环保性、可再生性、技术可行性,特别是对常规化石能源的有效替代性,在国家能源安全战略中扮演愈来愈重要的角色,开始引领世界跨入强劲增长的生物经济时代.在生物质能源开发利用的众多原料领域中,木本油料又具有不可替代的独特优势,在中国是真正实现发展生物燃料坚持"不与民争粮、不与粮争地"原则的有效途径.
语种:
中文
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基于云南洱海流域水污染控制的多目标农业产业结构优化研究
作者:
龚琦;王雅鹏;董利民
期刊:
农业现代化研究 ,2010年31(4):475-478 ISSN:1000-0275
作者机构:
[龚琦; 王雅鹏] 华中农业大学经济管理学院;[董利民] 华中师范大学经济管理学院
关键词:
洱海流域;水污染控制;农业产业结构优化;多目标规划模型
摘要:
本文利用以农业污染削减和农业经济增长为主要目标的多目标规划模型, 对云南洱海流域农业产业结构进行了优化设计, 为其水污染控制和农业经济可持续发展提供了实践依据, 并从建立农业产业结构优化的激励机制、充分发挥农村合作组织的引导作用和建立农业剩余劳动力转移机制三个方面, 提出了推进洱海流域农业产业结构优化的政策建议.
语种:
中文
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Environment re-construction is sustainable strategy for developing poor regions in central and western China
作者:
Dong Li-min
期刊:
PROCEEDINGS OF THE 2007 INTERNATIONAL CONFERENCE ON MANAGEMENT SCIENCE AND ENGINEERING, FINANCE ANALYSIS SECTION ,2007年:2454-2458
作者机构:
[Dong Li-min] Cent China Normal Univ, Sch Econ, Wuhan 430079, Hubei, Peoples R China.
会议名称:
2007 International Conference on Management Science and Engineering(2007管理科学与工程国际学术会议)
会议时间:
2007-08-20
会议地点:
河南焦作
会议论文集名称:
2007 International Conference on Management Science and Engineering(2007管理科学与工程国际学术会议)论文集
关键词:
environment;poor regions;sustainable development;reconstruction
摘要:
Based on the analysis of the relationship between environment and sustainable development, the current environment situation of the poor central and western regions and the reasons accounting for the environmental problems, this article hopes to establish the system for environmental improvement and reconstruction of the poor central and western China under the strategy of sustainable development by setting up environment improvement goals and approaches and feasible countermeasures which are to make poor regions alleviate poverty and keep sustainable development.
语种:
英文
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An analysis on risk of ULC project based on principal - Agent theory
作者:
Dong, Li-Min
期刊:
Proceedings of the 2006 International Conference on Management Science and Engineering ,2006年:661-665
作者机构:
[Dong, Li-Min] Cent China Normal Univ, Sch Econ, Wuhan 430079, Hubei, Peoples R China.
会议名称:
2006 International Conference on Management Science and Engineering(2006管理科学与工程国际学术研讨会)
会议时间:
2006-11-08
会议地点:
武汉
会议论文集名称:
2006 International Conference on Management Science and Engineering(2006管理科学与工程国际学术研讨会)论文集
关键词:
urban land consolidation;principal-agent;risk
摘要:
Urban land consolidation (ULC) is an important way to resolve the problems of the equilibrium of land "demand and supply" and "food and development". ULC project is more risky than other kinds of projects because of its distinctness. From the perspective of principal-agent theory, the characteristics of ULC project and the risk of principal-agent are analyzed in this paper and then some countermeasures are put forward.
语种:
英文
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