| 三江源区草地覆盖遥感信息提取方法及动态研究 |
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| 引用本文： | 刘晓东,刘荣堂,刘爱军,贠旭疆,李新一,包海明.三江源区草地覆盖遥感信息提取方法及动态研究[J].草地学报,2010,18(2):154-159. |
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| 作者姓名： | 刘晓东 刘荣堂 刘爱军 贠旭疆 李新一 包海明 |
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| 作者单位： | 甘肃农业大学草业学院,甘肃,兰州,730070;农业部全国畜牧总站,北京,100125;甘肃农业大学草业学院,甘肃,兰州,730070;农业部全国畜牧总站,北京,100125 |
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| 基金项目： | “十一五”支撑课题(2006BAD16B04-1);;国家自然科学基金项目(30471226)资助 |
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| 摘 要： | 在建立三江源区草地植被覆盖遥感监测和评价指标体系的基础上,对2008年三江源区草地植被覆盖状况做出评价,并用马尔柯夫链,对2000-2008年三江源区草地植被覆盖动态变化进行分析。结果表明:三江源区2008年草地总体为低植被覆盖草地,低覆盖和极低覆盖草地面积分别占31.29%和9.29%,其中西部和中东部草地植被覆盖状况令人担忧;依据转移矩阵,表明近九年,三江源区的草地植被覆盖总体呈降低趋势,但从低覆盖和极低覆盖草地出现好转,有10.82%低覆盖和14.23%极低覆盖草地分别转化为中覆盖和低覆盖等级草地,说明2000年以来实施的《青海三江源自然保护区生态保护和建设总体规划》生态建设项目效果明显。
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| 关 键 词： | 遥感 信息提取 草地覆盖 动态 三江源区 |
Study on Information Extraction and the Dynamic Monitoring of Grassland Coverage in Three River Source Area |
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| LIU Xiao-dong,LIU Rong-tang,LIU Ai-jun,YUN Xu-jiang,LI Xin-yi,BAO Hai-ming.Study on Information Extraction and the Dynamic Monitoring of Grassland Coverage in Three River Source Area[J].Acta Agrestia Sinica,2010,18(2):154-159. |
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| Authors: | LIU Xiao-dong LIU Rong-tang LIU Ai-jun YUN Xu-jiang LI Xin-yi BAO Hai-ming |
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| Institution: | 1.Gansu Agricultural University;Lanzhou;Gansu Province 730070;China;2.National Animal Husbandry Service;Beijing 100125;China |
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| Abstract: | The paper made a comment on coverage of grassland of the Three River Source Area,based on monitoring and building indicator system for evaluating coverage and also implemented Markov process to analyse dynamic changes of coverage of the region during the last nine years.The result indicated that coverage of grassland in the area belonged to poor grade in 2008,which low coverage and lower coverage respectively occupied 31.29% and 9.29%.The coverage of western and mid-eastern regions was serious degradation i... |
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| Keywords: | Remote sensing Information extraction Grassland coverage Dynamic change Three river source area |
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