干旱区生态环境知识资源中心(Arid): 近20年中国北方草原植被长势动态监测

Arid

	近20年中国北方草原植被长势动态监测
其他题名	Vegetation dynamics of the north Chinese grassland in the past 20 years
	田海静; 王林; 石俊华
来源期刊	草业科学
ISSN	1001-0629
出版年	2020
卷号	37 期号:11 页码:2165-2174
中文摘要	草原是我国陆地上重要的绿色生态屏障,其中北方草原占全国草原总面积的40.72%。本研究利用2000-2019年卫星植被指数分析了近20年我国北方草原植被长势动态。结果表明:1) 2000-2019年,北方草原植被指数呈现显著性增长趋势(P <0.01),归一化植被指数(normalized difference vegetation index,NDVI)年均增长幅度为0.002 9,近20年来稳定性增长比例为24%;2) 2000-2019年,北方草原呈现整体植被恢复、局部地区植被退化的现象,植被恢复区域占北方草原总面积的52.22%,退化区域占0.86%,退化区域呈点状零星分布;3)在低纬度地区和湿润半湿润地区,草原恢复更加明显,而植被恢复不明显的区域主要分布在高纬度地区和干旱区;4)国家加强草原生态建设,加之有力气象条件,促进了草原生态质量的提升,但是在自然条件恶劣的地区,生态修复难度大,未来更应注重草原保护修复工程的长效性和连续性建设。
英文摘要	Grasslands represent an important green ecological barrier in the terrestrial environment.The north Chinese grassland accounts for 40.72% of the total grassland area in China.Using satellite data on vegetation index,this study analyzed vegetation dynamics in the north Chinese grassland over the past 20 years,from 2000 to 2019.It was found that from 2000 to 2019,the vegetation index of China's northern grassland showed a significant growth trend (P <0.01),with an annual increase of 0.002 9 in normalized difference vegetation index and a stable growth rate of 24% over this 20-year period.From 2000 to 2019,the northern grassland showed overall vegetation restoration despite partial vegetation degradation in some areas;areas where vegetation was restored accounted for 52.22% of the grassland,while areas where it was degraded accounted for 0.86%.The effects of this restoration were most obvious at lower latitudes and in humid and semi-humid regions.Areas with no obvious change were mainly distributed in higher latitudes and arid regions,where natural conditions are very poor and vegetation restoration is more difficult.More attention should be given to the long-term and continuous restoration of the grassland.
中文关键词	北方草原 ; 时间序列遥感 ; 植被长势 ; 动态监测 ; 生态修复
英文关键词	MODIS NDVI north grassland MODIS time series remote sensing NDVI vegetation growth dynamic monitoring ecological restoration
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:6863407
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/353351
作者单位	田海静, 国家林业和草原局调查规划设计院, 北京 100714, 中国. 王林, 国家林业和草原局调查规划设计院, 北京 100714, 中国. 石俊华, 国家林业和草原局调查规划设计院, 北京 100714, 中国.
推荐引用方式 GB/T 7714	田海静,王林,石俊华. 近20年中国北方草原植被长势动态监测[J],2020,37(11):2165-2174.
APA	田海静,王林,&石俊华.(2020).近20年中国北方草原植被长势动态监测.草业科学,37(11),2165-2174.
MLA	田海静,et al."近20年中国北方草原植被长势动态监测".草业科学 37.11(2020):2165-2174.