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作 者:闫欣 王峥羽 牛振国 孔庆凡 陈雷 YAN Xin;WANG Zheng-Yu;NIU Zhen-Guo;KONG Qing-Fan;CHEN Lei(Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100094;University of Chinese Academy of Sciences,School of Electronic,Electrical and Communication Engineering,Beijing 100049;School of Civil Engineering,Chongqing Jiaotong University,Chongqing 400000,Sichuan;Earth View Image Inc,Beijing 100101)
机构地区:[1]中国科学院空天信息创新研究院,北京100094 [2]中国科学院大学电子电气与通信工程学院,北京100049 [3]重庆交通大学土木工程学院,四川重庆400000 [4]北京国遥新天地信息技术有限公司,北京100101
出 处:《湿地科学与管理》2019年第4期57-60,共4页Wetland Science & Management
基 金:国家重点研发计划课题(2017YFA0603004);中国科学院战略性先导科技专项(A类)(XDA19030203);国家自然科学基金(41971390)资助
摘 要:利用随机森林算法对吉林省湿地保护区进行了湿地遥感分类,构建了景观指数与“压力-状态-响应”模型综合评价体系,对吉林省2015-2017年18个湿地自然保护区和湿地公园进行了生态安全评价。结果表明:(1)18个自然保护区中范围最大的是松花江三湖湿地,湿地面积最大的为查干湖湿地,8个保护区湿地面积减少,其中吉林圆池湿地退化最严重,龙沼湿地退化面积最大;(2)景观指数显示,吉林省近3年内18个湿地保护区中只有5个出现了景观破碎化现象;(3)PSR模型综合评价结果表明:吉林省大部分自然保护区(14/18)处于相对安全的等级,但处于该等级的下限。月亮湖湿地、雁鸣湖自然保护区、圆池湿地保护区和长春北湖国家湿地公园处于生态安全预警状态。This paper classifies wetlands in Jilin Province by using random forest algorithm,constructs a comprehensive evaluation system of landscape index and"pressure-state-response"model,and evaluates the ecological security of 18 wetland nature reserves and wetland parks inJilin Province from 2015 to 2017.The results showed that:(1)Among the 18 nature reserves,the largest area was Three Lake Wetland of Songhua River,the largest area was Chagan Lake Wetland,and the wetland area has been reduced in 8 nature reserves.Among them,Jilin Yuanchi wetland provincial nature reserve had the most serious degradation,and Longzhao Wetland had the largest degradation area.(2)The landscape index showed that only 5 of 18 wetland protection areas in Jilin Province displayed landscape fragmentation in the past three years.(3)The comprehensive evaluation of PSR model showed that although most of the wetland protection areas/wetland parks in Jilin Province(14/18)were in a relatively safe level,they were at the lower limit of that level.There are four nature reserves namely,Moon lake wetland,Yanming lake national nature reserve,Yuanchi Wetland Provincial Nature Reserve and Changchun North Lake National Wetland Park,are at the early warning states.
关 键 词:湿地保护区 生态安全评价 吉林省 PSR模型 湿地遥感
分 类 号:X37[环境科学与工程—环境工程]
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