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当前位置: 首页 > 文章 > 基于WEB数据库和Maxent模型的白头叶猴潜在生境评价研究 林业资源管理 2010 (4) 31-36+57
Position: Home > Articles > Evaluation of Potential Habitat for White-headed Langur Based on WEB Dataset and Maxent Model Forest Resources Management 2010 (4) 31-36+57

基于WEB数据库和Maxent模型的白头叶猴潜在生境评价研究

作  者：
李明阳;席庆;徐海根
单  位：
国家环保部南京环境科学研究所;南京林业大学
关键词：
白头叶猴;潜在生境;WEB数据库;Maxent
摘  要：
白头叶猴是中国广西特有分布种,属我国一级保护动物,其空间分布及其生态环境因子知识,是制定白头叶猴保护和发展规划前提。以2007—2008年中国广西白头叶猴93个痕迹点数据和开放式生态环境WEB数据库的63个环境变量为主要信息源,采用最大熵法(Maxent)生态位模型,进行白头叶猴潜在生境预测。在此基础上,采用专家经验法对预测结果进行重分类,并与植被斑块信息、距离道路及居民点距离、历史分布资料进行叠加分析。研究结果表明:太阳辐射、最湿季节降水量、月平均昼夜温差、距离水源距离、最冷月最低温和土壤酸碱度是影响白头叶猴空间分布的主要生态环境因子;白头叶猴最适宜区、适宜区、不宜区面积分别为112.60km2,78.92km2,17 056.13 km2;白头叶猴的分布面积(最适宜区、适宜区)分别比20世纪60年代、80年代、90年代下降了65%,50%,9.5%。为保护白头叶猴免于灭绝,应当加强动物保护的宣传教育、加强对白头叶猴的科学研究和保护、实施生态移民和建立生态园。
译  名：
Evaluation of Potential Habitat for White-headed Langur Based on WEB Dataset and Maxent Model
作  者：
LI Mingyang1,XI Qing1,XU Haigen2(1.College of Forest Resources and Environment,Nanjing Forestry University,Nanjing,210037,China;2.Division of Nature Conservation and Biodiversity,Nanjing Institute of Environmental Sciences,Ministry of Environmental Protection,Nanjing,210042,China)
关键词：
white-headed langur,potential habitat,WEB dataset,Maxent
摘  要：
White-headed langur Trachypithecus leucocephalus is an indigenous species in Guangxi,China,belonging to the first class protection list of wild animals in China.Knowing the information of its spatial distribution and enforcing environmental factors is the precondition of protection policy-making.93 footprint points with GPS coordinates between 2007 and 2008 and 63 environmental variables from open WEB datasets were gathered to generate maximum entropy method(Maxent)model.After the prediction result of Maxent model was produced,reclassification of the result based on expert knowledge was done,followed by over-layering of raster layers of distance to road,distance to farmland,distance to residence,historical distribution data and the reclassification result.Results showed that potential annual direct incident radiation(radiation,46.1%),precipitation of wettest quarter(bio16,19.2%),mean diurnal range(bio2,9.8%),distance to water(dist_water,7%),minimum temperature of coldest month(bio6,6.9%)and soil pH soilph,4%)were the six enforcing environmental factors impacting the spatial distribution of the langur.The area of the most suitable,suitable,unsuitable habitats was 112.60km2,78.92km2 and 17056.13km2 respectively.Compared with distribution area in 60th,80th,90th of the last century,the most suitable and suitable area has been decreased by 65%,50%,9.5% respectively.Suggestions on enhancing education on wild animal protection,furthering the research on the behavior of endangered species,advancing the step of ecological emigrant from nuclear distribution area,establishing more nature reserves were put forward as the main protection measures.

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