安徽农业科学2017，Vol.45Issue(36)：4-8,5.
华北平原植被动态对气象干旱的响应特征
Response Characteristics of Vegetation Greenness to Different Time-scale Meteorological Droughts in Northern China Plain
摘要
Abstract
We evaluated the response of different land biomes to drought by correlating the various timescale SPEI/SPI with a widely used indicator of vegetation activity,like the Normalized Difference Vegetation Index (NDVI) in Northern China Plain (NCP) during 1982-2012.The results showed that the NDVI of spring cultivated vegetation were more sensitive to drought than that of summer vegetation , and the impact of drought on vegetation greenness in northern was more significant than that in southern .The response of vegetation to drought was usually more obvious at a long scale,but the strongest response timescale in northern was shorter than southern .In a word,water deficit during the growing season was the main driver of vegetation vulnerability to drought .关键词
植被绿度/干旱/时间尺度/干旱脆弱性/华北平原Key words
Vegetation greenness/Drought/Time-scales/Drought vulnerability/Northern China Plain分类
农业科技引用本文复制引用
卢洪健,胡智丹..华北平原植被动态对气象干旱的响应特征[J].安徽农业科学,2017,45(36):4-8,5.基金项目
水利部公益性行业专项(201301040). （201301040）
