作者机构：
[周勇; 李畅] College of Urban and Environmental Science, Huazhong Normal University, 152 Luoyu Road, Wuhan 430079, China;[胡敏] School of Economics and Management, China University of Geosciences, 388 Lumo Road, Wuhan 430074, China;[胡敏] Communications Command Academy, 45 Jiefanggongyuan Road, Wuhan 430010, China;[刘亚文] School of Remote Sensing and Information Engineering, Wuhan University, 129 Luoyu Road, Wuhan 430079, China
通讯机构：
College of Urban and Environmental Science, Huazhong Normal University, 152 Luoyu Road, China
作者机构：
[Li, Chang; Liu, Pengcheng] Huazhong Normal Univ, Coll Urban & Environm Sci, Wuhan 430079, Peoples R China.;[Hu, Min] Peoples Liberat Army Commun Command Acad, Wuhan 430010, Peoples R China.;[Hu, Min] China Univ Geosci, Sch Econom & Management, Wuhan 430074, Peoples R China.
通讯机构：
[Li, Chang] H;Huazhong Normal Univ, Coll Urban & Environm Sci, Wuhan 430079, Peoples R China.
会议名称：
International Conference on Advanced Measurement and Test (AMT 2010)
会议时间：
MAY 15-16, 2010
会议地点：
Sanya, PEOPLES R CHINA
会议主办单位：
[Li, Chang;Liu, Pengcheng] Huazhong Normal Univ, Coll Urban & Environm Sci, Wuhan 430079, Peoples R China.^[Hu, Min] Peoples Liberat Army Commun Command Acad, Wuhan 430010, Peoples R China.^[Hu, Min] China Univ Geosci, Sch Econom & Management, Wuhan 430074, Peoples R China.
会议论文集名称：
Key Engineering Materials
关键词：
line extraction;Wallis filtering;LoG;Canny;Hough transform;perceptual organization;LSTM;aerial image
摘要：
Line and plane feature can provide more information than point feature, thus 3D reconstruction based on high-level features, such as line and plane, is an important development trend in Digital Photogrammetry and Computer Vision. Several methods for extracting straight line are researched, and the main procedures can be introduced as follows. Firstly, image is preprocessed by Wallis filtering that is used to enhance the image contrast and reduce the noise, so it is easy to extract more lines. Secondly, Laplacian of Gaussian operator (LoG) and Canny operator algorithms are compared to locate the edge by detecting discontinuity variation in image. Thirdly, Hough transform or perceptual organization based on hypothesis testing are compared and tested for combining and fitting fractured short line segments into a whole line. Lastly, the least square template matching algorithm (LSTM) is done to get higher precise (sub-pixel) located lines. In the experiment, different algorithms for straight line extraction of aerial images are realized and compared, in order to faster achieve richer and higher accurate straight line information, which can pave the way of image understanding and image matching.
作者机构：
[程波] College of Urban and Environmental Sciences, HuaZhong Normal University, Wuhan 430079, China;[张家武; 陈发虎] Key Laboratory of Western China's Environmental Systems (Ministry of Education) Lanzhou University, Lanzhou 730000, China
通讯机构：
[Cheng, B.] C;College of Urban and Environmental Sciences, HuaZhong Normal University, China
关键词：
达连海;末次冰消期;全新世;孢粉记录;古植被
摘要：
在青藏高原共和盆地中的内陆湖泊——达连海获取40.92m长的湖泊岩芯（DLH钻孔）,选用植物残体作为测年材料,利用AMS14C测年技术建立可靠的地层年代序列,对岩芯进行孢粉分析,重建该地末次冰消期以来的古植被和古环境。末次冰消期以来达连海周围山地在14.8～12.9Cal ka BP和9.4～3.9Cal ka BP时段曾发育森林,气候较湿润,达连海附近盆地发育的荒漠草原盖度增加或演化为草原;在15.8～14.8CalkaBP、12.9～9.4Cal ka BP和3.9～1.4Cal ka BP时段该地气候比较干旱,依据干旱的程度周围山地森林退化或消失,盆地内发育盖度较低的荒漠草原或草原化荒漠。1.4Cal ka BP以来湿度有所增加,发育草原植被类型。依据植被的演替历史推断该地气候的变化历程是15.8～14.8Cal ka BP干旱,14.8～12.9CalkaBP湿润,12.9～9.4CalkaBP干旱,9.4～3.9Cal ka BP湿润,3.9～1.4Cal ka BP干旱,1.4～0Cal ka BP湿润。达连海的孢粉记录与附近青海湖的孢粉结果对比,发现两地植被发育基本一致。末次冰消期Blling-Allerd时期,山地森林发育;新仙女木事件发生时森林萎缩;全新世中期两地针叶林发育达到鼎盛,之后逐渐减少至消失。早全新世达连海森林扩张的时间滞后于青海湖,主要与两地森林树种的不同和植被演替的时间差异有关。该区森林发育的全盛时期在中全新世,这与石笋记录到的亚洲季风强盛时期在早全新世不相一致,可能与植被复杂的响应机制有关。
作者机构：
南京大学地理与海洋科学学院,南京,210093;华中师范大学城市与环境科学学院,武汉,430074;School of Service Management,Bournemouth University,BH12 5BB,UK
通讯机构：
School of Geographic and Oceanographic Sciences, Nanjing University, China
关键词：
自然旅游地;自然保护态度;九寨沟;新森林国家公园(New Forest National Park,NF)
摘要：
居民的自然保护态度对自然旅游地的自然保护与旅游可持续发展至关重要,自然旅游地居民自然保护态度的影响因子及影响方式,已经成为自然旅游地管理的重要内容,但相关研究薄弱。以中国九寨沟和英国新森林国家公园（New Forest National Park,NF）为例,根据实地问卷调查数据,从两地居民的人口属性、旅游环保期望、旅游环境影响感知及旅游环境伦理观与其自然保护态度关系的角度,进行定量比较研究。研究发现:（1）两地居民的自然保护态度受不同因子的影响,存在明显的中外差异;（2）人口属性特征如性别、年龄、居住年限、教育水平及旅游业参与情况对新森林国家公园社区居民的自然保护态度没有影响;但性别、旅游业参与情况却影响九寨沟居民的自然保护态度,女性及旅游业参与者更支持对九寨沟进行自然保护;（3）新森林国家公园居民的自然保护态度受其旅游环保期望及旅游环境伦理观的影响:旅游环保期望较高、持保护主义环境伦理观的新森林国家公园居民,更有可能支持对新森林国家公园进行自然保护;（4）九寨沟居民的自然保护态度不受其旅游环保期望及旅游环境伦理的影响,但受其旅游环境影响感知的影响;居民的旅游环境影响感知越消极,越支持对九寨沟进行自然保护。
期刊：
Journal of China Tourism Research,2010年6(3):310-324 ISSN：1938-8160
通讯作者：
Shaowen Cheng
作者机构：
School of Urban and Environment Science , Huazhong Normal University , Wuhan , P. R. China;School of Geographic and Oceanographic Sciences , Nanjing University , Nanjing , P. R. China;[Jie Zhang] Tourism Research Institution , Nanjing University, Nanjing , Nanjing , P. R. China;[Zhongfu Zhu] Jiuzhaigou National Park Authority , Jiuzhaigou , P. R. China;[Feifei Xu] School of Services Management , Bournemouth University , Bournemouth , UK
通讯机构：
[Shaowen Cheng] S;School of Urban and Environment Science , Huazhong Normal University , Wuhan , P. R. China;School of Geographic and Oceanographic Sciences , Nanjing University , Nanjing , P. R. China
关键词：
Marketing;postdisaster;national park;Jiuzhaigou National Park
摘要：
National parks are designated for environmental protection and recreation purposes, which have a close relationship with tourism development. Many national park authorities (NPAs) have recognized the need to establish a more market-driven, sustainable strategic approach to develope tourism therein. For NPs, tourism marketing can serve as a powerful tool to achieve the mandated missions of protecting ecosystem, providing recreation, and fostering social–economic development in local communities, especially in the postdisaster/crisis period. Taking China's Jiuzhaigou National Park (JNP) as an example, a secondary data analysis was conducted to explore the international tourist markets for JNP before and after the 2008 Wenchuan earthquake. Some marketing recommendations were then put forward for JNP's tourism recovery and sustainable development.
期刊：
2010 The 2nd Conference on Environmental Science and Information Application Technology,2010年3:401-405
作者机构：
[Hao Liu; Ling-ling Tian; Ying Dong; Xiao-shi Shi; Can-can Xiang] College of Urban and Environmental Science, Central China Normal University, Wuhan, China
摘要：
Urban wetlands play a significant role in the sustainable development. But the effect of human action on urban wetlands has been expanded in greater scope and depth, which may cause the accelerated degeneration of urban wetlands seriously. Based on the historical data of land using maps, topographic maps and TM images of Wuhan from 1930s to 2005, which were through the Man-Machine Interaction in ArcGIS System and ERDAS IMAGINE, and the field data through the fieldwork and questionnaire research in 2009 and 2010, the urban wetland database from 1930s to 2005 in Wuhan had been established. Then, the spatio-temporal evolution of urban wetlands was quantitatively and qualitatively analyzed. Urban wetlands have been degenerating seriously, and the tendency of its degeneration is all but irreversible. The results showed that: (1) the area of natural urban wetlands decreased: lake wetlands decreased by 55% from 1930s to 2005; (2) pollution state of urban wetlands worsened: no lakes reached Grade I, and the remaining 65.4% exceeded Grade V; (3) decline in biodiversity had been becoming worse and worse; (4) the urban wetland landscape fragmentation had augmented a lot. Based on the statistic data of socio-economic factors from 1930s to 2005, we analyzed dynamic changes of urban wetlands, and by making use of the correlation analysis of SPSS, analyzed the direct factors consisting of agriculture-inning, engineering construction, resource utilization and biological invasion, and the basic factors consisting of population explosion, urbanization, industrialization, mass consciousness and public policy.
