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FOREST RESOURCES WANAGEMENT ›› 2014, Vol. 0 ›› Issue (4): 114-119.doi: 10.13466/j.cnki.lyzygl.2014.04.022

• Scientific Research • Previous Articles     Next Articles

Estimates Adaptability of Different Vegetation Indexes Based on Spot-5 Data of Huitengxile Grassland Biomass in Inner Mongolia

ZHANG Tao1, WANG Xiping1, LIU Jiahui2, JIANG Yanfeng3, ZHANG Qiuliang1   

  1. 1. College of Forestry,Inner Mongolia Agricultural University,Hohhot 010019 China;
    2. Hohhot Vocational College,Hohhot 010019 China;
    3. Meteorological Sciences Institute of Inner Mongolia,Hohhot 010019 China
  • Received:2014-08-20 Revised:2014-08-30 Online:2014-08-28 Published:2020-11-23

Abstract: With the wide application of vegetation index in grassland yield estimation,more scholars discussed about the optimal selection of vegetation indexes in different research areas.Extraction of six common vegetation indexes was done.Based on Spot-5 remote sensing data and combined with field survey methods,different vegetation index and biomass correlation analysis of precise positioning of the sample points was conducted and the best vegetation indices of the study area determined.The results showed that:(1) there existed a clear correlation between the 6 vegetation indexes and the biomass samples with Spot-5 image data.(2) Samples of biomass and NDVI,SAVI correlation coefficient R are 0.823,0.802,the correlation coefficient R>0.8,is highly correlated;PVI,DVI,RVI,MASVI correlation coefficient R are 0.738,0.735,0.672,0.671 correlation coefficient R is between 0.3~0.8,which shows a moderate correlation.(3)the best vegetation indexes of study area were determined with the experimental correlation analysis method.Other indicators of vegetation characteristics such as vegetation cover,and similar conditions in the study area for the study area provides a fast,efficient method of selecting vegetation indexes.

Key words: vegetation index, biomass, grassland

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