地理学报 ›› 2012, Vol. 67 ›› Issue (9): 1255-1268.doi: 10.11821/xb201209010
穆少杰1, 李建龙1, 陈奕兆1, 刚成诚1, 周伟1, 居为民2
收稿日期:
2012-05-04
修回日期:
2012-05-29
出版日期:
2012-09-20
发布日期:
2012-09-20
通讯作者:
李建龙(1962-),教授。E-mail:jianlongli@gmail.com
作者简介:
穆少杰(1985-),男,内蒙古乌兰察布人,在读博士,主要从事遥感技术应用及陆地碳循环方面的研究。E-mail:musjeg@gmail.com
基金资助:
国家重点基础研究发展计划(973 计划) 项目(2010CB950702); 国家863 计划专题项目(2007AA10Z231);APN 全球变化基金项目(ARCP2011-06CMY-Li)
MU Shaojie1, LI Jianlong1, CHEN Yizhao1, GANG Chengcheng1, ZHOU Wei1, JU Weimin2
Received:
2012-05-04
Revised:
2012-05-29
Online:
2012-09-20
Published:
2012-09-20
Supported by:
National Basic Research Program of China, No.2010CB950702; National High Technology Research and Development Program of China (863 Program), No.2007AA10Z231; APN project, No.ARCP2011-06CMY-Li
摘要: 基于MODIS-NDVI 遥感数据反演了内蒙古地区2001-2010 年植被覆盖度的空间格局和变化规律, 并结合该地区同期降雨量和温度数据, 分别从不同空间和时间尺度上分析了森林生态区、草原生态区和荒漠生态区植被的年际变化和月际变化对气候变化的响应。结果表明:(1) 内蒙古植被覆盖度在空间上呈现东高西低的分布特征, 自西向东的变化速率为0.2/10°N, 10 年间森林、草原和荒漠生态区的年均植被覆盖度分别为0.57、0.4 和0.16;(2) 2001-2010年, 内蒙古植被覆盖度总体上呈上升趋势, 研究区内植被覆盖度极显著增加和显著增加的面积分别占总面积的11.25%和29.13%, 二者之和大于植被覆盖度极显著减少和显著减少的面积比例之和, 后者分别为7.65%和26.61%;(3) 在年际水平上, 内蒙古植被生长总体上与降雨量的关系更加密切, 而在月际水平上, 降雨量和温度对植被生长的影响作用相当, 说明年内植被生长更依赖于水热组合的共同作用, 而与单一气候因子的相关性降低;(4) 森林生态区植被覆盖度在年/月际水平上均与温度的相关性较强, 荒漠生态区植被覆盖度在年/月际水平上均与降雨量相关性较强, 而草原生态区植被覆盖度在年际水平上主要受降雨影响, 在月际水平上与二者相关性相当;(5) 草原区月植被覆盖度对降雨量的响应存在时滞效应。
穆少杰, 李建龙, 陈奕兆, 刚成诚, 周伟, 居为民. 2001-2010 年内蒙古植被覆盖度时空变化特征[J]. 地理学报, 2012, 67(9): 1255-1268.
MU Shaojie, LI Jianlong, CHEN Yizhao, GANG Chengcheng, ZHOU Wei, JU Weimin. Spatial Differences of Variations of Vegetation Coverage in Inner Mongolia during 2001-2010[J]. Acta Geographica Sinica, 2012, 67(9): 1255-1268.
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