干旱区生态环境知识资源中心(Arid): 中国西北干旱区1981～2001年NDVI对气候变化的响应分析

Arid

	中国西北干旱区1981～2001年NDVI对气候变化的响应分析
其他题名	The Response of NDVI to Climate Variability in Northwest Arid Area of China from 1981 to 2001
	李秀花; 师庆东; 郭娟; 巴音达拉; 常顺利; 齐家国
ISSN	1003-7578
出版年	2009
卷号	23 期号:2 页码:12-16
中文摘要	气候变化在不同的区域有着不同的特征,对植被也带来不同的影响,对不同地区气候变化特征的认识及植被变化的相应分析,可使我们对全球变化对干旱区的影响有更深入的认识.本文通过定量分析西北干旱区1981～2001年NOAA/AVHRR数据和同期的气象资料,借助于遥感技术和数理统计知识,分析了1981～2001年我国西北干旱区NDVI变化及其与气候变化的关系.结果显示:1981-2001年间西北干旱区年际最大NDVI的变化与气候变化具有明显的相关性,尤其是对新疆的南、北疆来说,NDVI的变化受到年降水量、年均温和空气相对湿度的影响比较显著,NDVI与年降水量和相对湿度的柏关程度要明显比与年均温的相关程度高.甘肃内蒙占的河西走廊和青海的柴达木地区NDVI没有明显的变化趋势,同时这两个地区也是年降水量变化最小的地区.从而得出一个结论:降水资源是我国西北干旱区植被生长和生态建没的最重要气象因子,只有充分、合理地利用"降水"这种天然水资源才能最终实现中国四北干旱区环境、社会与经济的可持续发展.
英文摘要	The characteristics of climate variable are different in different area. This variable can bring different effect to vegetation. The cognition to the characteristics of climate variable and the relevant analysis on vegetation cover change help us more deeply to know the effect of global change in arid area. This research studied the NDVI change and its response to climate variable in northwest arid area of China from 1981 to 2001 by quantitatively analyzing the NOAA/AVHRR data of this time and the simultaneously meteorological information using trend analysis and correlation analysis by means of remote sensing technique and statistics. The results indicated that there was an evident correlation between the NDVI change and the climate change in the whole northwest arid area from 1981 to 2001.Especially in Xinjiang, the NDVI change was apparently affected by precipitation and temperature. The NDVI change was positively correlated with annual total precipitation, average temperature and annual humidity in north Xinjiang and south Xinjiang. At the corridor of Cansu & Inner Mongolia and the Qaidam basin of Qinghai there was no obvious change of NDVI, and at the same time it was just the place where the precipitation changed least. Through upper analysis on the relation between the NDVI change and the climate changed in northwest arid area of China, it was showed that precipitation resource was the most key factor to vegetation growth and ecology construction.
中文关键词	西北干旱区 ; 气候 ; 响应
英文关键词	NDVI the northwest arid area NDVI climate response
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:3583280
来源机构	新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223652
作者单位	新疆大学资源与环境科学学院, 新疆绿洲生态重点实验室, 乌鲁木齐, 新疆 830046, 中国
推荐引用方式 GB/T 7714	李秀花,师庆东,郭娟,等. 中国西北干旱区1981～2001年NDVI对气候变化的响应分析[J]. 新疆大学,2009,23(2):12-16.
APA	李秀花,师庆东,郭娟,巴音达拉,常顺利,&齐家国.(2009).中国西北干旱区1981～2001年NDVI对气候变化的响应分析.,23(2),12-16.
MLA	李秀花,et al."中国西北干旱区1981～2001年NDVI对气候变化的响应分析".23.2(2009):12-16.