干旱区生态环境知识资源中心(Arid): 2001-2010年内蒙古植被净初级生产力的时空格局及其与气候的关系

Arid

	2001-2010年内蒙古植被净初级生产力的时空格局及其与气候的关系
其他题名	Spatial-temporal distribution of net primary productivity and its relationship with climate factors in Inner Mongolia from 2001 to 2010
	穆少杰 1; 李建龙 1; 周伟 1; 杨红飞 1; 章超斌 1; 居为民 2
来源期刊	生态学报
ISSN	1000-0933
出版年	2013
卷号	33 期号:12 页码:3752-3764
中文摘要	利用MODIS NDVI数据、气象数据和植被分类数据,基于改进的光能利用率模型CASA模型对2001-2010年内蒙古不同植被类型净初级生产力(NPP)进行估算,并分析其时空分布特征及对气候因子的响应。结果表明:(1)10年间内蒙古植被年NPP的平均值为340.0 gCm~(-2)a~(-1),且空间分布呈明显的经度地带性,由西向东的变化速率为每10度增加200.5 gCm~(-2)a~(-1);(2)不同植被类型NPP有较大差异,森林、草地、农田和荒漠植被的NPP平均值分别为521.9、270.3、405.7和85.3 gCm~(-2)a~(-1);(3)10年间内蒙古植被NPP总量的平均值为322.7 TgCa~(-1),波动范围为276.8-354.4 TgCa~(-1)。从NPP年际变化的空间分布来看,阿拉善沙漠、毛乌素沙地西部、河套平原以北地区、浑善达克沙地东西缘和呼伦贝尔平原西北部植被的NPP呈极显著上升,而内蒙古中部的草地植被NPP呈极显著下降;(4)不同植被类型NPP对气候因子的敏感性有较大差异。森林植被NPP主要受温度的限制,而农田、草地和荒漠植被NPP主要受降水量控制。
英文摘要	Net primary productivity (NPP) and its responses to global change is one of the focuses of global change research. Based on MODIS NDVI data, land use classification data and meteorological data, spatio-temporal changes of the NPP of Inner Mongolia vegetation during 2001-2010 were simulated using improved light use efficiency model (CASA model). The relationships between NPP and climate factors were analyzed based on partial correlation coefficients of the two-group elements. The results showed that average annual NPP from 2001 to 2010 was 340.0 gCm~~(-2)a~(-1) in the study area, exhibiting obvious increase trend from southwest to northeast with a mean change rate of 200.5 gCm~(-2)a~(-1)/10°. The mean NPP of forest, grassland, cropland and desert were 521.9、270.3、405.7 and 85.3 gCm~(-2)a~(-1), respectively, which showed significant differences. During 2001-2010, the average annual total NPP of Inner Mongolia vegetation was 322.7 TgCa~(-1), ranging from 276.8 to 354.4 TgCa~(-1). Over the 10 years period, extremely significant increase of vegetation NPP occurred in Alxa desert, the western margin of Mu Us sandy land, north of Hetao plain, the eastern and western margin of Hunshandak sandy land and northwest of Hulun Buir league, while extremely significant decrease of vegetation NPP mainly occurred in the grassland in the central of Inner Mongolia. Climate factors exerted various influences on different vegetation types. Temperature was the dominant driving force of NPP of forest, while precipitation influenced the NPP of grassland, cropland and desert vegetation more seriously.
中文关键词	内蒙古植被 ; 净初级生产力 ; CASA模型 ; 气象因子 ; 相关系数
英文关键词	Inner Mongolia vegetation net primary productivity (NPP) CASA model climate factors correlation coefficients
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:4859064
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/230002
作者单位	1.南京大学生命科学学院, 南京, 江苏 210093, 中国; 2.南京大学国际地球系统科学研究所, 南京, 江苏 210093, 中国
推荐引用方式 GB/T 7714	穆少杰,李建龙,周伟,等. 2001-2010年内蒙古植被净初级生产力的时空格局及其与气候的关系[J],2013,33(12):3752-3764.
APA	穆少杰,李建龙,周伟,杨红飞,章超斌,&居为民.(2013).2001-2010年内蒙古植被净初级生产力的时空格局及其与气候的关系.生态学报,33(12),3752-3764.
MLA	穆少杰,et al."2001-2010年内蒙古植被净初级生产力的时空格局及其与气候的关系".生态学报 33.12(2013):3752-3764.