Study on the spatial differences and its time lag effect on climatic factors of the vegetation in the Longitudinal Range-Gorge Region

文献类型： 外文期刊

第一作者： Bao YaJing

作者： Bao YaJing;Song GuoBao;Li ZhengHai;Song GuoBao;Li ZhengHai;Gao Jixi;Lue, HaiYan;Cheng Yan;Wang HaiMei;Xu Tian

作者机构：

关键词： spatial distribution;spatial pattern;vegetation cover;climatic factor;meteorological data;precipitation change;vegetation-climate relationship;time lag effect;temperature-precipitation form

期刊名称：CHINESE SCIENCE BULLETIN （ 影响因子：1.649； 五年影响因子：1.738 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： This article analyzes the correlation of NDVI and two meteorological data including temperature and precipitation, and probes the spatial pattern of responding sensitivity of the vegetation to temperature and precipitation change. By constructing the NDVI, index, the relation between vegetation cover and land use in the Longitudinal Range-Gorge Region (LRGR) is revealed. The conclusion is as follows: (1) The time lag effect that vegetation responds to temperature and precipitation change is proven. Different regions have different delay time corresponding to maximum correlation coefficient. According to response time of precipitation and temperature combination, three kinds of temperature-precipitation forms are defined, namely, precipitation and temperature in the same time, precipitation prior to temperature and temperature prior to precipitation. (2) The spatial distribution of sensitivity, of which vegetation responses to temperature, is characterized by several high and low scattered correlation centers. Different from temperature, two insensitive regions and two sensitive belts are formed to present the response of vegetation to precipitation. (3) The NDVIr is constructed, which can perfectly reflect the corresponding relationship between meteorological factors and land use condition in the LRGR.

分类号： N1

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