干旱区生态环境知识资源中心(Arid): 从民勤盆地植被覆盖度时空变化视角评估石羊河流域综合治理成效

Arid

	从民勤盆地植被覆盖度时空变化视角评估石羊河流域综合治理成效
其他题名	Effect Evaluation on the Comprehensive Management for Shiyang River Basin from the Perspective of Temporal and Spatial Changes of Vegetation Coverage in Minqin Basin
	江原; 杨金顺; 赵发甲; 洪凯; 柳小妮; 郝媛媛
来源期刊	云南农业大学学报
ISSN	1004-390X
出版年	2020
卷号	35 期号:4 页码:726-735
中文摘要	【目的】比较石羊河流域综合治理前后民勤盆地生态环境的变化情况,为石羊河流域综合治理乃至西北内陆河流域生态恢复政策的实施提供理论依据。【方法】以石羊河下游典型的荒漠绿洲生态系统民勤盆地为研究区,以Landsat影像为数据源,通过基于NDVI像元二分模型的植被覆盖度反演方法研究了2000年(治理前)、2006年(治理开始)、2010年(治理I期)和2016年(治理Ⅱ期)不同时期植被覆盖度时空变化情况。【结果】(1)20002016年,整个研究区低和高植被覆盖度的面积分别增加了7.71%和0.71%,平均植被覆盖度年增幅为0.13%,轻度和中度改善的面积分别达到了6.39%和0.56%,尤其以治理Ⅱ期(20102016年)的生态恢复最为明显。(2)综合治理后,2016年绿洲区低和高植被覆盖面积较2000年分别增加了1.05%和2.88%;荒漠区无植被面积从56.98% (2000年)减少至47.27% (2016年),而低植被覆盖面积则增加了11.30%。(3)以青土湖、黄岸滩和老虎口的生态恢复最为典型。【结论】随着石羊河流域综合治理的实施,民勤盆地植被覆盖度和面积均有明显向好的发展趋势,石羊河流域综合治理生态恢复效果明显。
英文摘要	[Purpose] Through a comparative of ecological environment changes in Minqin Basin before and after a national ecological restoration engineering, named the comprehensive management of the Shiyang River Basin, this study aimed to provide a theoretical basis for the implementation of the project and the ecological restoration policy of the inland river basins in the northwest. [Method] Taking the Minqin Basin, the typical desert-oasis ecosystem in the downstream of Shiyang River as the study area, and using Landsat images as the data source, we studied the spatial and temporal changes of vegetation coverage in 2000 (before ecological restoration), 2006 (start ecological restoration), 2010 (ecological restoration I period) and 2016 (ecological restoration II period) as the remote sensing retrieval methods of fractional vegetation coverage based on NDVI pixel dichotomy model. [Result] (1) From 2000 to 2016,the areas of low and high vegetation coverage in the entire study area increased by 7.71% and 0.71%, respectively. The average vegetation coverage increased by 0.13% per year, and the area of slight and moderate improvement reached 6.39% and 0.56%, respectively. The improvement effects were obvious especially in the ecological restoration II period (2010-2016) was the most obvious. (2) After the implementation of ecological restoration, the areas of low and high vegetation coverage areas in the oasis in 2016 increased by 1.05% and 2.88% respectively in 2016 compared with 2000; the area of no vegetation coverage decreased from 56.98% (2000) to 47.27% (2016),while the area of low vegetation coverage increased by 11.30% in the desert. (3) The ecological restoration of Qingtu Lake, Huangantan and Laohukou are the most typical regions for ecological restoration. [Conclusion] With the implementation of comprehensive management of Shiyang River Basin, the vegetation coverage and area of Minqin Basin have a clear development trend, and the comprehensive restoration of Shiyang River Basin has obvious ecological restoration effect.
中文关键词	石羊河流域 ; 综合治理 ; 生态恢复 ; 民勤盆地 ; 植被覆盖度
英文关键词	Shiyang River Basin comprehensive management ecological restoration Minqin Basin vegetation coverage
类型	Article
语种	中文
收录类别	CSCD
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:6799065
来源机构	甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336867
作者单位	江原, 甘肃农业大学草业学院, 草业生态系统教育部重点实验室, 兰州, 甘肃 730070, 中国.; 杨金顺, 甘肃农业大学草业学院, 草业生态系统教育部重点实验室, 兰州, 甘肃 730070, 中国.; 赵发甲, 甘肃农业大学草业学院, 草业生态系统教育部重点实验室, 兰州, 甘肃 730070, 中国.; 洪凯, 甘肃农业大学草业学院, 草业生态系统教育部重点实验室, 兰州, 甘肃 730070, 中国.; 柳小妮, 甘肃农业大学草业学院, 草业生态系统教育部重点实验室, 兰州, 甘肃 730070, 中国.; 郝媛媛, 甘肃农业大学草业学院, 草业生态系统教育部重点实验室, 兰州, 甘肃 730070, 中国.
推荐引用方式 GB/T 7714	江原,杨金顺,赵发甲,等. 从民勤盆地植被覆盖度时空变化视角评估石羊河流域综合治理成效[J]. 甘肃农业大学,2020,35(4):726-735.
APA	江原,杨金顺,赵发甲,洪凯,柳小妮,&郝媛媛.(2020).从民勤盆地植被覆盖度时空变化视角评估石羊河流域综合治理成效.云南农业大学学报,35(4),726-735.
MLA	江原,et al."从民勤盆地植被覆盖度时空变化视角评估石羊河流域综合治理成效".云南农业大学学报 35.4(2020):726-735.