基于Hurst指数的1982–2013年蒙古高原植被动态变化趋势及其影响因素分析（英文）

编号 zgly0001583942

文献类型 期刊论文

文献题名 基于Hurst指数的1982–2013年蒙古高原植被动态变化趋势及其影响因素分析（英文）

作者 佟斯琴  张继权  包玉海  来全  连晓  丽娜  包勇斌 

作者单位 SchoolofEnvironment  NortheastNormalUniversity  KeyLaboratoryforVegetationEcology  MinistryofEducation  CollegeofGeography  InnerMongoliaNormalUniversity  InnerMongoliaKeyLaboratoryofRemoteSensingandGeographicInformationSystems  I 

母体文献 Journal of Geographical Sciences 

年卷期 2018年05期

年份 2018 

分类号 Q948 

关键词 remotesensing  GIMMSNDVI3g  vegetationdynamictrend  Hurstexponent  residualtrendanalysis  MongolianPlateau 

文摘内容 This study analyzed the spatial and temporal variations in the Normalized Difference Vegetation Index(NDVI) on the Mongolian Plateau from 1982–2013 using Global Inventory Modeling and Mapping Studies(GIMMS) NDVI3 g data and explored the effects of climate factors and human activities on vegetation. The results indicate that NDVI has slight upward trend in the Mongolian Plateau over the last 32 years. The area in which NDVI increased was much larger than that in which it decreased. Increased NDVI was primarily distributed in the southern part of the plateau, especially in the agro-pastoral ecotone of Inner Mongolia. Improvement in the vegetative cover is predicted for a larger area compared to that in which degradation is predicted based on Hurst exponent analysis. The NDVI-indicated vegetation growth in the Mongolian Plateau is a combined result of climate variations and human activities. Specifically, the precipitation has been the dominant factor and the recent human effort in protecting the ecological environments has left readily detectable imprints in the NDVI data series.