干旱区生态环境知识资源中心(Arid): 气候变化对阿拉善荒漠植被的影响研究

Arid

	气候变化对阿拉善荒漠植被的影响研究
其他题名	Impact of Climate Change on Desert Vegetation in Alxa Region
	张凯 1; 司建华2 ; 王润元 1; 王小平 1; 韩海涛 3; 郭铌 1
ISSN	1000-694X
出版年	2008
卷号	28 期号:5 页码:879-885
中文摘要	利用1982--2003年NASAGIMMS归一化植被指数（NDVI）数据集和阿拉善左旗、右旗和额济纳旗气温和降水资料，对阿拉善地区NDVI变化和气候变化特征及其相互关系进行了分析。结果表明：①198212003年东部地区（左旗植被指数略有增加，而中部（右旗）和西部地区（额济纳旗）则呈下降趋势。季节变化东、中、西部表现不同。左旗和额济纳旗多年平均NDVI的月变化和右旗相反。②东部地区升温率最大，其次是西部和中部地区。降水表现为东部和西部地区（额济纳旗）稍有增加，而中部地区（右旗）呈缓慢减少趋势。季节变化东、中、西部表现不同。多年平均气温和降水量的月变化趋势东、中、西部一致，呈单峰型曲线。③东部地区和中部地区，降水量与植被指数存在明显的年相关、隔季和当季相关，而西部地区额济纳旗没有明显的相关性。阿拉善地区NDVI同温度的相关性不好。
英文摘要	The variation characteristics of vegetation and their relationship with climate change in Alxa region from 1982 to 2003 were studied by using the GIMMS Normalized Difference Vegetation Index （NDVI） data and meteorological records from Alxa Left Banner, Alxa Right Banner and Ejin Banner in order to find out the regional response of the vegetation to the global change. The results showed that：（1）From 1982 to 2003, the annual mean of NDVI weakly increased in the eastern Left Banner but descended in the middle Right Banner and in the western Ejin Banner of Alxa. The season variation of NDVI was different： the monthly variation of 22-year averaged NDVI in Left Banner and Ejin Banner was contrary to that in Right Banner. （2）Rate of temperature increase was the biggest in the eastern Left Banner and the smallest in the middle Right Banner from 1982 to 2003. The annual mean precipitation slightly increased in the eastern Left Banner and in the western Ejin Banner but descended slowly in the middle Right Banner. The seasonal vari- ation of temperature and precipitation was also different： the monthly variation of 22-year averaged temper- ature and precipitation appeared to vary in a single-peak curve in Left Banner, Right Banner and Ejin Ban- ner. （3）The NDVI showed a positive annual correlation, interseasonal correlation and seasonal correlation with precipitation in the eastern Left Banner and the middle Right Banner, but there was no correlation be- tween NDVI and precipitation in the western Ejin Banner. There was no correlation between NDVI and temperature in Alxa region.
中文关键词	荒漠植被 ; NDVI变化 ; 气候变化 ; 阿拉善地区
英文关键词	desert vegetation NDVI change climate change Alxa region
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:3391592
来源机构	中国科学院西北生态环境资源研究院 ; 中国气象局兰州干旱气象研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223171
作者单位	1.中国气象局兰州干旱气象研究所, 甘肃省(中国气象局)干旱气候变化与减灾重点(开放)实验室, 兰州, 甘肃 730020, 中国; 2.中国科学院寒区旱区环境与工程研究所, 兰州, 甘肃 730000, 中国; 3.甘肃省气象局兰州大学联合数据实验室, 甘肃省气象局兰州大学联合数据实验室, 兰州, 甘肃 730020, 中国
推荐引用方式 GB/T 7714	张凯,司建华,王润元,等. 气候变化对阿拉善荒漠植被的影响研究[J]. 中国科学院西北生态环境资源研究院, 中国气象局兰州干旱气象研究所,2008,28(5):879-885.
APA	张凯,司建华,王润元,王小平,韩海涛,&郭铌.(2008).气候变化对阿拉善荒漠植被的影响研究.,28(5),879-885.
MLA	张凯,et al."气候变化对阿拉善荒漠植被的影响研究".28.5(2008):879-885.