首页 | 本学科首页   官方微博 | 高级检索  
     检索      

陕西省重点生态建设工程区植被恢复状况遥感监测
引用本文:范建忠,李登科,董金芳.陕西省重点生态建设工程区植被恢复状况遥感监测[J].农业工程学报,2012,28(7):228-234.
作者姓名:范建忠  李登科  董金芳
作者单位:陕西省农业遥感信息中心,西安,710014
基金项目:陕西省科学技术研究发展计划项目(2011K17-02-04)
摘    要:该文应用像元分解模型,利用250m分辨率MODISNDVI定量估算了2000~2010年陕西省的植被覆盖度,分析了该省重点生态建设工程区(防沙治沙工程区、退耕还林工程区、天然林保护工程区)植被覆盖度的时空变化特征。结果表明:1)陕西省重点生态建设工程区2010年的植被覆盖度比2000年增加了8.3%~23.2%。2)2000~2010年各个生态建设工程区的植被覆盖度变化都呈现在波动中缓慢上升的趋势(P<0.01),线性倾向变化百分率以防沙治沙工程区最高(83.8%),其次是陕北退耕还林工程区(61.1%)。3)各个生态建设工程区植被覆盖度以增加为主,植被覆盖度线性倾向变化增加的面积占相应工程区面积的82.8%~98.2%。4)各个生态建设工程区高覆盖度植被所占的面积比例具有极显著的上升趋势(P<0.01),低覆盖度植被所占的面积比例具有极显著的下降趋势(P<0.01)。通过重点生态建设工程的实施,工程区内植被覆盖状况显著改善,防沙治沙工程区和陕北退耕还林工程区植被覆盖度增加尤为显著。该研究可为客观评价陕西省防沙治沙工程、退耕还林工程、天然林保护工程的生态效益提供科学依据。

关 键 词:遥感  生态系统  建设工程  植被覆盖度  陕西省
收稿时间:2011/10/6 0:00:00
修稿时间:2011/10/27 0:00:00

Remote sensing analysis of vegetation restoration in key ecological construction areas of Shaanxi province
Fan Jianzhong,Li Dengke and Dong Jinfang.Remote sensing analysis of vegetation restoration in key ecological construction areas of Shaanxi province[J].Transactions of the Chinese Society of Agricultural Engineering,2012,28(7):228-234.
Authors:Fan Jianzhong  Li Dengke and Dong Jinfang
Institution:(Shaanxi Remote Sensing Information Center for Agriculture,Xi’an 710014,China)
Abstract:Based on pixel decomposition model, this paper managed to get the fractional vegetation cover (FVC) of Shaanxi province form 2000 to 2010 with MODIS NDVI at a resolution of 250 m, and analyzed the temporal and spatial variation characteristics of FVC in key ecological construction areas (grain for green Program, desertification prevention and control project, natural forest protection project) of Shaanxi province. The research results indicated that: 1) The FVC in key ecological construction areas of Shaanxi province in 2010 increased 8.3% to 23.2% compared with 2000. 2) The FVC in key ecological construction areas showed an upward trend with fluctuation (P<0.01). The percentage change in linear trend of the desertification prevention and control project areas (83.8%) was the highest, and grain for green program in north Shaanxi (61.1%) was the next. 3) The FVC in each ecological construction areas mainly increased, and the areas with an upward vegetation coverage linear trend accounted for 82.8% to 98.2%. 4) The percentage of high FVC areas had a notable increase trend, and the percentage of the low FVC areas had a notable decrease trend. The FVC in the ecological construction areas were improved noticeably though the construction of key ecological construction, especially in desertification prevention and control project areas and grain for green program in north Shaanxi.
Keywords:remote sensing  ecosystems  construction  fractional vegetation cover  Shaanxi province
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《农业工程学报》浏览原始摘要信息
点击此处可从《农业工程学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号