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

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Science Bulletin 2007年第S2期 42-49页

作者： BAO YaJing~1 SONG GuoBao~(1,2) LI ZhengHai~(1,3) GAO JiXi~3 L HaiYan~4 WANG HaiMei~5 CHENG Yan~6 XU Tian~7 1 Institute of Bio-Resources and Environment,College of Life Science,Dalian Nationalities University,Dalian 116600,China 2 College of Resources Science and Technology,Beijing Normal University,Beijing 100875,China 3 Innovation Base of Regional Ecology,Chinese Research Academy of Environmental Sciences,Beijing 100012,China 4 Institute of Agricultural Resources and Regional Planning,Chinese Academy of Agricultural Sciences,Beijing 100081,China 5 Inner Mongolia Municipality Observatory,Huhhot 010051,China 6 College of Ecological Environment,Inner Mongolia Agricultural University,Huhhot 010018,China 7 College of Life Science,Inner Mongolia University,Huhhot 010021,China

This article analyzes the correlation of NDVI and two meteorological data including temperature and precipitation,and probes the spetial pattern of responding sensitivity of the vegetation to temperature and precipitation *** constructing the NDVIrindex,the relation between vegetation cover and land use in the Longitudinal Range-Gorge Region（LRGR）is *** conclusion is as follows:（1） The time lag effect that vegetation responds to temperature and precipitation change is ***- ferent regions have different delay time corresponding to maximum correlation *** to response time of precipitation and temperature combination,three kinds of temperature-precipi- tation 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 *** from temperature,two insensitive regions and two sensitive belts are formed to pre- sent the response of vegetation to precipitation.（3）The NDVIris constructed,which can perfectly re- flect the corresponding relationship between meteorological factors and land use condition in the LRGR.

关键词： land cover meteorological factors effect of time lag spatial correlation population density Longitudinal Range-Gorge Region(LRGR)

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