西北师范大学学报（自然科学版）2016，Vol.52Issue(6)：118-124,7.DOI:10.16783/j.cnki.nwnuz.2016.06.021
人类活动对山西高原植被覆盖变化的影响
Influence of human activities on vegetation cover variations on Shanxi Plateau
摘要
Abstract
This paper investigated the vegetation cover variations on the Shanxi Plateau based on MODIS normal difference vegetation index(I NDV )from 2001 to 2013 using transition matrix and liner regression methods.The influence of human activities on vegetation cover variations are also analyzed from three aspects:land use change,agricultural production,and vegetation construction,based on land use data, meteorological data,and statistical data.Results show that during 13 years,the average area of land use change is 24 15 1.29 km2 , accounting for 15.8% of the total area on Shanxi Plateau. The average variations in I NDV caused by land use change is accounted for 1 6.1%.The contribution of agricultural production to annual I NDV is about 80% in the unchanged area of cropland.Fertilization and irrigation plays an important role in the output of crops, and the contribution is 82.1%. The contributions of vegetation construction to annual I NDV are about 87% and 85% in unchanged area of woodland and grassland,respectively.The contribution of vegetation construction to annual I NDV in unchanged area of woodland is increased with increasing altitude.The contribution of vegetation construction to annual I NDV in low altitude area of grassland is larger than the middle altitude area.关键词
INDV/植被活动/土地利用变化/农业生产/植被建设Key words
I NDV/vegetation activity/land use change/agricultural production/vegetation construction分类
农业科技引用本文复制引用
张珺,程朋,张茹,闫美芳,任鸿瑞..人类活动对山西高原植被覆盖变化的影响[J].西北师范大学学报（自然科学版）,2016,52(6):118-124,7.基金项目
山西省青年科技研究基金资助项目(2013021030-1) （2013021030-1）
山西省高等学校创新人才支持计划资助项目 （）
