干旱区生态环境知识资源中心(Arid): 2000-2017年河西地区山地-绿洲-荒漠系统植被变化趋势与可持续性分析

Arid

	2000-2017年河西地区山地-绿洲-荒漠系统植被变化趋势与可持续性分析
其他题名	Vegetation change trend and persistence analysis of the mountainoasis-desert system in Hexi region from 2000 to 2017
	鲁晖; 董敬儒; 贺思嘉; 颉耀文
来源期刊	兰州大学学报. 自然科学版
ISSN	0455-2059
出版年	2021
卷号	57 期号:1 页码:99-108
中文摘要	利用MODIS的归一化植被指数(NDVI)数据,采用Theil-Sen Median趋势分析、Mann-Kendall显著性检验方法及Hurst指数法,分析了2000-2017年河西地区植被的变化趋势及其可持续性特征 .结果表明,河西地区2000-2017年NDVI增长区域面积较大且分布广泛,减少区域较少.河西地区植被总体呈稳中向好的趋势,走廊绿洲区植被增长趋势最大,祁连山区植被增长趋势较小,戈壁荒漠区植被变化趋势不显著.植被覆盖持续增长的区域远多于持续降低的区域,但持续增长的能力较弱,小部分处于增长趋势的植被未来发展趋势可能逆转,存在植被退化风险.走廊绿洲区植被持续增长能力最强,祁连山区植被增长持续性较弱,戈壁荒漠区植被较为稳定.
英文摘要	Based on the normalized difference vegetation index (NDVI) data of MODIS, the trend and persistence of vegetation in the Hexi region from 2000 to 2017 were analyzed via the Theil-Sen Median trend analysis with Mann-Kendall test and Hurst index respectively. The combination of the results of Theil-Sen Median trend analysis with Mann-Kendall test, as well as the result of Hurst index, were conducted to analyze the persistence in NDVI trend. The results indicated that, the vegetation improvement areas in the Hexi region were large and widely distributed, the vegetation degradation areas was small and concentrated, and the overall vegetation was steady with the increasing trend. The vegetation growth trend of the Corridor Oasis area was largest, followed by that in the Qilian Mountains area and the least in the Gobi Desert area. In general, the area of continuous improvement of vegetation coverage was far more than the area of continuous degradation, but the ability to continuously improve was weak. The future development trend of a small part of the vegetation with improvement trend might be reversed and there could be a risk of degradation of the vegetation here. The continuous improvement ability of vegetation was the strongest in the Corridor Oasis area, the weaker in the Qilian Mountains area and the vegetation in the Gobi Desert was relatively stable.
中文关键词	河西地区 ; 归一化植被指数 ; 植被覆盖变化 ; 趋势分析 ; Hurst指数
英文关键词	Hexi region normalized difference vegetation index vegetation cover change trend analysis Hurst index
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Remote Sensing
CSCD记录号	CSCD:6903650
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/354356
作者单位	鲁晖, 兰州大学资源环境学院, 兰州, 甘肃 730000, 中国. 董敬儒, 兰州大学资源环境学院, 兰州, 甘肃 730000, 中国. 贺思嘉, 兰州大学资源环境学院, 兰州, 甘肃 730000, 中国. 颉耀文, 兰州大学资源环境学院;;兰州大学, ;;西部环境教育部重点实验室, 兰州;;兰州, ;; 730000;;730000.
推荐引用方式 GB/T 7714	鲁晖,董敬儒,贺思嘉,等. 2000-2017年河西地区山地-绿洲-荒漠系统植被变化趋势与可持续性分析[J]. 兰州大学,2021,57(1):99-108.
APA	鲁晖,董敬儒,贺思嘉,&颉耀文.(2021).2000-2017年河西地区山地-绿洲-荒漠系统植被变化趋势与可持续性分析.兰州大学学报. 自然科学版,57(1),99-108.
MLA	鲁晖,et al."2000-2017年河西地区山地-绿洲-荒漠系统植被变化趋势与可持续性分析".兰州大学学报. 自然科学版 57.1(2021):99-108.