胡君德,李百岁,萨楚拉,包刚,张雪峰,张靖,谷俊杰

• 1:内蒙古师范大学地理科学学院
• 2:内蒙古师范大学遥感与地理信息系统重点实验室
• 3:南京大学国际地球系统科学研究所
• 4:内蒙古大学生命科学学院

摘要(Abstract)：

针对鄂尔多斯高原植被覆盖变化受干旱胁迫的状况,该文结合降水和气温的协同变化,以2000—2012年生长季的MODIS-NDVI数据和同期降水、温度和帕尔默干旱指数为依据,采用线性趋势分析、标准偏差分析和相关性分析等方法,对鄂尔多斯高原植被与气候变化的相关关系和干旱异常变化对植被动态的影响进行了研究。结果表明:鄂尔多斯高原生长季及季节(春季、夏季和秋季)植被归一化植被指数主要受降水的控制和干旱的制约,秋季归一化植被指数更多地受到夏季干旱的影响。与气象因子的空间相关分析表明,春季温度上升有利于研究区北部归一化植被指数像元的增加。在荒漠草原和沙漠地区,夏季干旱与归一化植被指数的相关关系最强。秋季降水对典型草原归一化植被指数的提升显著。

关键词(KeyWords)： 干旱;MODIS-NDVI;植被覆盖变化;鄂尔多斯高原

Abstract:

Keywords:

基金项目(Foundation): 内蒙古自然科学基金项目(2016MS0409);; 内蒙古科技计划项目(201502095);; 中国农业科学院草原非生物灾害防灾减灾创新团队项目(CAAS-ASTIP-IGR 2016-0406)

作者(Author): 胡君德,李百岁,萨楚拉,包刚,张雪峰,张靖,谷俊杰

DOI: 10.16251/j.cnki.1009-2307.2018.04.008

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