摘要
基于2011-2016年生长季MODIS-NDVI数据,采用最大值合成法、均值法和变化趋势法研究了挠力河流域植被NDVI的变化特征。结果表明:2011-2016年挠力河流域生长季植被最大化NDVI均值总体呈上升趋势,植被覆盖变化趋势以改善为主,其中53.15%的区域植被覆盖状况得到改善,明显退化区域仅占0.37%。
Based on MODIS-NDVI data in growing seasons during 2011-2016, using Maximum Value Composites method, average method and trend analysis method to study the vegetation NDVI spatial-temporal variation characteristics of Naoli River Basin.Results show that the average maximum NDVI in in growing seasons in Naoli River Basin during 2011-2016 is on the rise.The dominating changing trend of vegetation coverage is improved.Improved vegetation coverage areas account for 53.15 percent while obvious degraded areas only account 0.37 percent.
作者
张弘强
曾星雨
曲艺
崔玲
李海燕
罗春雨
高玉慧
ZHANG Hong-qiang(Institute of Natural Resources and Ecology, HAS. International Center on Space Technologies for Natural and Cultural Heritage under the auspices of UNESCO--Harbin Base. National and Provincial Joint Engineering Laboratory of Wetlands and Ecological Conservation, Harbin 150040, China)
出处
《国土与自然资源研究》
2018年第1期91-93,共3页
Territory & Natural Resources Study
基金
黑龙江省院所基本应用技术研究专项(STJB16-5)
国家自然科学基金青年科学基金(41501583)
黑龙江省科学院青年创新基金(CXMS2017ZR01)
关键词
植被生长季NDVI
时空变化
挠力河流域
Vegetation NDVI in growing seasons
Spatail-temporal changes
Naoli River Basin
