生态学报2017，Vol.37Issue(22)：7418-7426,9.DOI:10.5846/stxb201609231919
京津冀城市群地区植被覆盖动态变化时空分析
Temporal-spatial analysis of vegetation coverage dynamics in Beijing-Tianjin-Hebei metropolitan regions
摘要
Abstract
Identifying the dynamics of vegetation coverage is important for the research of ecological security and ecosystem services.This study analyzed MODIS NDVI remote sensing data and identified the temporal-spatial dynamics of vegetation coverage during 2005-2015 in Beijing-Tianjin-Hebei metropolitan regions.The analysis methods included linear regression,coefficient of variation,R/S analysis,and other mathematical methods.The results showed that (1) the vegetation coverage increased by 0.065 from 2005 to 2015.The vegetation restoration experienced a stable fluctuation phase after two fast-improving periods.(2) The significantly improved area occupied 47.45％ of the region and the insignificant area accounted for 33.9％ of the region,which was mainly in the North China Plain.The degraded area accounted for 6.8％ of the region and was scattered in the surroundings of big cities.(3) The sustainability of vegetation restoration was dominant (58.8％) in the Beijing-Tianjin-Hebei region.The vegetation area of anti-sustainability accounted for 34.4％,mainly distributed in Zhangjiakou,Cangzhou,and the south-east of Baoding.The continuous degradation area was only 4.8％ of the region and distributed in the cities of Tianjin,Langfang,and Cangzhou.These results could be useful for identifying the dynamics of vegetation coverage and predicting the potential trends of ecological network connectivity.关键词
京津冀/MODIS NDVI/植被覆盖变化/持续性Key words
Beijing-Tianjin-Hebei/MODIS NDVI/vegetation cover change/sustainability引用本文复制引用
李卓,孙然好,张继超,张翀..京津冀城市群地区植被覆盖动态变化时空分析[J].生态学报,2017,37(22):7418-7426,9.基金项目
国家自然科学基金重大项目(41590843) （41590843）
