江西农业学报2018，Vol.30Issue(1)：127-133,7.DOI:10.19386/j.cnki.jxnyxb.2018.01.27
基于MODIS数据的宝鸡地区植被覆盖时空变化及影响因素分析
Temporal and Spatial Changes and Influencing Factors of Vegetation Cover in Baoji Area Based on MODIS Data
摘要
Abstract
Based on MODIS NDVI and NPP data, according to the climatic indexes (air temperature, rainfall, etc.) of 11 meteorological stations in Baoji area, we analyzed the temporal and spatial changes in vegetation cover in Baoji area from 2001 to 2013. The spatial variation trend of annual average NDVI in Baoji area during 2001～2013 was explored by using trend analysis method. The correlation analysis method was used to further analyze the correlations between annual average NDVI, NPP and an-nual average air temperature, annual rainfall in this area. The results showed that:from 2001 to 2013, the annual average NDVI in Baoji area increased at the rate of 0.032/10 a, and its increasing rate was higher than that (0.007/10 a) of vegetation cover in Sanbei Shelterbelt Project Area from 1982 to 2006; there were two high-recovery periods of annual average NDVI in Baoji area from 2001 to 2002 and from 2003 to 2004; the vegetation cover in this area was mainly mildly improved, and was little seriously or moderately degenerated; except for individual regions, the restoration of vegetation cover had a better tendency of steadily rising as a whole; there were better correlations between vegetation cover and air temperature, rainfall in Baoji area, and these correla-tions were positive in most regions; ten years after returning farmland to woodland, NDVI and NPP had the same change trend.关键词
植被覆盖/相关性/NDVI/宝鸡地区Key words
Vegetation cover/Correlation/NDVI/Baoji area分类
农业科技引用本文复制引用
王静,万红莲,张翀..基于MODIS数据的宝鸡地区植被覆盖时空变化及影响因素分析[J].江西农业学报,2018,30(1):127-133,7.基金项目
国家自然科学基金项目(71361023) （71361023）
陕西省重点实验室项目(09JS073) （09JS073）
宝鸡文理学院自然地理学陕西省重点学科基金项目. （）
