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基于MODIS NDVI的贵州省植被退化及归因

马士彬 杨广斌 安裕伦 张勇荣

马士彬, 杨广斌, 安裕伦, 张勇荣. 基于MODIS NDVI的贵州省植被退化及归因[J]. 中国岩溶, 2019, 38(2): 227-232.
引用本文: 马士彬, 杨广斌, 安裕伦, 张勇荣. 基于MODIS NDVI的贵州省植被退化及归因[J]. 中国岩溶, 2019, 38(2): 227-232.
MA Shibin, YANG Guangbin, AN Yulun, ZHANG Yongrong. Reasons of vegetation degradation in the Southwest China Guizhou Province base on MODIS NDVI data[J]. CARSOLOGICA SINICA, 2019, 38(2): 227-232.
Citation: MA Shibin, YANG Guangbin, AN Yulun, ZHANG Yongrong. Reasons of vegetation degradation in the Southwest China Guizhou Province base on MODIS NDVI data[J]. CARSOLOGICA SINICA, 2019, 38(2): 227-232.

基于MODIS NDVI的贵州省植被退化及归因

基金项目: 国家自然科学基金项目(41361091);贵州省教育厅自然科学研究重点项目(黔教合KY字[2013]173号);贵州省科技合作计划项目(黔科合LH字[2015]7610号)

Reasons of vegetation degradation in the Southwest China Guizhou Province base on MODIS NDVI data

  • 摘要: 为了解森林退化的原因,利用2000-2015年的MODIS NDVI数据,在分析贵州省植被变化趋势的基础上识别了归一化植被指数(NDVI)显著下降的区域,并在NDVI显著下降区选取面积大于10 km2的森林图斑为兴趣区,分析其内气候变化趋势及对森林NDVI值的影响。研究表明:197个兴趣区主要分布在贵州省西北部的赤水—习水、东北部的梵净山和东南部的非喀斯特区域;区内春、夏季NDVI变化趋势与年NDVI值变化趋势一致,下降速率达到-0.01·yr-1,冬季与其他季节变化趋势相反,呈不显著升高趋势;区内春季和夏季气温升高显著,降水和日照时间无明显变化,整体气候变化呈暖干趋势;夏季温度升高是NDVI降低的主要驱动因素。

     

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  • 刊出日期:  2019-04-25

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