干旱区生态环境知识资源中心(Arid): 19822014年祁连山植被生长季NDVI变化及其对气候的响应

Arid

	19822014年祁连山植被生长季NDVI变化及其对气候的响应
其他题名	Variations of NDVI and Its Response to Climate Change in the Growing Season of Vegetation in Qilianshan Mountains from 1982 to 2014
	贾文雄; 陈京华
来源期刊	水土保持研究
ISSN	1005-3409
出版年	2018
卷号	25 期号:2 页码:264-268
中文摘要	祁连山是西北地区重要的生态功能区和河西绿洲的水源涵养地,全面了解植被的生长变化有助于制定合理的气候变化对策。利用1982 1999年的GIMMS NDVI数据和20002014年的MODIS NDVI数据,采用最大值合成法、均值法、斜率法、相关分析法等,对祁连山近35年生长季植被变化及其对气候变化的响应进行了深入研究。结果表明:19822014年,祁连山植被NDVI整体呈增加趋势,但变化趋势并不明显;近35年,祁连山植被NDVI呈增加趋势的面积比呈降低趋势的面积大,表明植被覆盖状况有所改善,植被NDVI增加的区域集中于中西部,而植被NDVI降低的区域集中于东部;气候的年际变化对祁连山植被NDVI有一定的影响,植被NDVI对气温和降水存在一定的滞后性响应。气温升高和降水增加有助于祁连山植被覆盖增加,生态环境得到改善。
英文摘要	Qilianshan Mountains is one of the most important ecological function areas in northwest China and the water conservation area of Hexi oasis. Understanding the growth and variation of vegetation is helpful to formulate reasonable strategies of climate change. Using the date of GIMMS NDVI from 1982 to 1999 and MODIS NDVI from 2000 to 2014,the variations of vegetation in growing season and its response to climate change were studied in Qilianshan Mountains nearly 35 years by the maximum synthesis method, average method, slope method, correlation analysis method. The results showed that vegetation NDVI appeared an increasing trend in Qilianshan Mountains from 1982 to 2014, but it was not obvious. The area of increasing rate of vegetation NDVI was larger than its decreasing rate, which indicates that the vegetation cover of Qilianshan Mountains had been improved in the past 35 years. The regions of vegetation NDVI increase concentrated in the Midwest,but the decreased regions was in the eastern Qilianshan Mountains. The inter-annual change of climate has some influences on the vegetation NDVI in Qilianshan Mountains, and the vegetation NDVI has a certain lag response to temperature and precipitation. The increases of temperature and precipitation are helpful to the increase of vegetation coverage,so as to improve the ecological environment in the Qilianshan Mountains.
中文关键词	生长季 ; 植被覆盖 ; 祁连山
英文关键词	NDVI NDVI growing season vegetation cover Qilianshan Mountains
语种	中文
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:6158231
来源机构	西北师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238341
作者单位	西北师范大学地理与环境科学学院, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	贾文雄,陈京华. 19822014年祁连山植被生长季NDVI变化及其对气候的响应[J]. 西北师范大学,2018,25(2):264-268.
APA	贾文雄,&陈京华.(2018).19822014年祁连山植被生长季NDVI变化及其对气候的响应.水土保持研究,25(2),264-268.
MLA	贾文雄,et al."19822014年祁连山植被生长季NDVI变化及其对气候的响应".水土保持研究 25.2(2018):264-268.