水资源与水工程学报2017，Vol.28Issue(5)：24-31,8.DOI:10.11705/j.issn.1672-643X.2017.05.04
塘背河小流域植被覆盖时空动态变化及水保驱动分析
Temporal and spatial variation of vegetation cover and its water and soil conservation driving in Tangbei River watershed
摘要
Abstract
The Tangbei river watershed is located in the Gannan old revolutionary base area and is the first national soil and water conservation reform pilot area in China.The scientific evaluation of the effect of soil and Water Conservation Ecological Restoration of Tangbei River watershed is of great practical sig -nificance to the construction of the soil and water conservation reform pilot area in Gannan revolutionary area.Based on the 40 years remote sensing images and soil and water conservation data, the temporal and spatial dynamic change of vegetation cover and the driving of water and soil conservation were carried out based on the NDVI threshold segmentation method.The results showed that,in the past 40 years,the vegetation coverage of the Tangbei river watershed increased from 22.91%in 1975 to 86.87%in 2014;and there were significant differences in time and space on vegetation cover, the time was divided into three stages:the rapid growth period of vegetation cover(1975-1989),self repair improvement period (1989-2001),and vegetation cover stable development period(2001-2014).It was spatially divided into three parts: the upper reaches of the original vegetation restoration area, the middle reaches of the artificial semi intervention vegetation restoration area and the downstream artificial direct intervention veg -etation restoration area.The vegetation cover and soil and water conservation project had good consistency in time and space,and the application of the soil and water conservation policy and the new technology of soil and water conservation in the late stage greatly reduced the spatial differences, which was important to the vegetation restoration.The research on the large -scale development of agriculture and forestry in vegetation restoration cannot be ignored.关键词
植被覆盖/塘背河小流域/时空变化/水保驱动Key words
vegetation cover/temporal and spatial variation/the driving of water and soil conservation/Tangbei River watershed分类
农业科技引用本文复制引用
宋月君,廖凯涛,杨洁,左继超,肖龙..塘背河小流域植被覆盖时空动态变化及水保驱动分析[J].水资源与水工程学报,2017,28(5):24-31,8.基金项目
国家科技支撑项目(2014BAD15B0303) （2014BAD15B0303）
国家自然科学基金项目(41461058、41401311) （41461058、41401311）
水利部公益性行业科研专项经费项目(201501047、201501045) （201501047、201501045）
江西省科技计划项目(2015ZBBF60010) （2015ZBBF60010）
江西省水利重大科技项目(KT201616、KT201518) （KT201616、KT201518）
