生态环境学报2011，Vol.20Issue(2)：226-232,7.
1982-2006年京津冀地区植被时空变化及其与降水和地面气温的联系
Spatial-temporal changes in vegetation cover and their relationships with precipitation and surface air temperature over the Beijing-Tianjin-Hebei region from 1982 to 2006
摘要
Abstract
The spatial-temporal characteristics and trends of the growing season (April～October) vegetation change and their relationships with precipitation and surface air temperature over the Beijing-Tianjin-Hebei region from 1982 to 2006 are investigated,by using the NOAA/AVHRR Normalized Difference Vegetation Index (NDVI) data and multivariate statistical methods including the Empirical Orthogonal Function (EOF), Singular Value Decomposition (SVD) and correlation analyses. It is found that the vegetation cover of study region generally increased during the past 25 years, with a maximum mcreasing rate of 3％/10 a occurring in central Hebei province. The inter-annual variation of growing season vegetation cover is positively related to the temperature change and especially to the precipitation fluctuation. The growing season vegetation was reduced significantly when the precipitation decreased in 1989 and from 1999 to 2002, while enhanced evidently as the precipitation increased in 1990, 1998 and from 2003 to 2005.关键词
京津冀/NDVI/植被覆盖/降水/气温Key words
Beijing-Tianjin-Hebei/ NDVI/ vegetation cover/ precipitation/ temperature分类
农业科技引用本文复制引用
晏利斌,刘晓东..1982-2006年京津冀地区植被时空变化及其与降水和地面气温的联系[J].生态环境学报,2011,20(2):226-232,7.基金项目
国家公益性行业(气象)科研专项(GYHY200706036) （气象）
国家自然科学基金项目(41075067 （）
40825008) （）
