干旱区生态环境知识资源中心(Arid): 社会-生态系统视角下沙漠化逆转定量评价以宁夏盐池县为例

Arid

	社会-生态系统视角下沙漠化逆转定量评价以宁夏盐池县为例
其他题名	Quantitative evaluation of desertification restoration based on the social-ecological system : A case study in Yanchi,Ningxia Hui Autonomous Region
	侯彩霞 1; 周立华 1; 文岩 2; 赵敏敏 1; 陈勇 1
来源期刊	生态学报
ISSN	1000-0933
出版年	2017
卷号	37 期号:18 页码:6186-6195
中文摘要	对沙漠化逆转区进行有效管理是沙漠化治理至关重要的环节,研究沙漠化逆转区社会-生态系统的干扰状况可以为沙漠化逆转区的管理提供理论支持。基于MODIS NDVI产品数据,用移动窗口法则计算了不同空间尺度上盐池县社会-生态系统的干扰强度和干扰连通度,并分析了20002015年间不同时间段内宁夏盐池县社会-生态系统干扰的空间分布。结果表明:①盐池县不同时间段内社会-生态系统干扰的空间分布具有较大差异,20002004年强干扰主要集中于盐池县的南部;20042008年强干扰在北部、中部均有表现;20082012年强干扰分别位于东、中、西3个小区域,并没有集中于一个区域,且北部强干扰区域进一步增强;20122015年强干扰的区域主要集中于县域的北部、中西部和西北部。②不同空间尺度上社会-生态系统干扰强度和连通度有很大差异,随着移动窗口的增大,不同集群的干扰类型也发生了变化,主要表现为低干扰离散型向低干扰集聚型转变,高干扰集聚型向低干扰离散型转变。③总体上看,除了个别区域社会-生态系统干扰强度和连通度较大以外,盐池县大部分地区社会-生态系统受干扰的强度和连通度并不大,沙漠化逆转程度较低,还有待进一步加强沙漠化治理力度。
英文摘要	The assessment of socio-ecological systems can reflect the effects of nature, social economics, and human activities on the ecological environment, which is helpful to understand the context of complex social-ecological systems. Desert areas are ideal for socio-ecological system assessments because the land cover of deserts seriously influences the improvement of the local ecological environment and social economy. Yanchi County in the Ningxia Hui Autonomous Region is a typical desertification area where the ecological environment is very fragile. The government has implemented the Grain for Green Project and a prohibited-grazing policy to suppress and reverse desertification since 2000,and these ecological policies have positive effects on ecological restoration of desert areas. Therefore, it is very important to control desertification and maintain the normal function of local social-ecological systems. In this paper, the social-ecological system disturbance in Yanchi County was analyzed to understand the changes of the local social-ecological system. The MODIS (Moderate resolution Imaging Spectrometer) normalized difference vegetation index (NDVI) data of the study region was applied to investigate the spatial distribution of the existing social-ecological system disturbance during 20002015. In addition, moving window computational algorithms were used to calculate social-ecological system disturbance intensity and connectivity at different spatial scales. The results showed that (1) the disturbance had different spatial distributions over different periods,and strong disturbances were mainly distributed in southern Yanchi County during 20002004,whereas strong disturbances were distributed in the northern and central areas during 20042008. Furthermore, strong disturbances were detected in three small areas : southeastern, central, and western Yanchi County during 20082012. Moreover, the proportion of strong disturbances in the North showed an increasing trend. Strong disturbances were mainly distributed in the north, mid-west, and northwest of the county during 20122015. (2) There was a significant difference of disturbance intensity and connectivity of social-ecological systems at multi-scale levels. The types of clusters changed with the increase in the study window : lower disturbance discrete types converted to lower disturbance concentration types, and higher disturbance concentration types converted to lower disturbance discrete types. (3) Overall, except in some small areas, the disturbance intensity and connectivity of social-ecological systems were generally not large in most regions of Yanchi County. However, the desertification management is still insufficient, and the government should implement additional active policies to control desertification in the future.
中文关键词	沙漠化地区 ; 生态恢复 ; 社会-生态系统 ; 干扰强度 ; 干扰连通度
英文关键词	desertification region ecological restoration social ecological system disturbance intensity disturbance connectivity
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:6068715
来源机构	中国科学院西北生态环境资源研究院 ; 北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236516
作者单位	1.中国科学院西北生态环境资源研究院, 中国科学院沙漠与沙漠化重点实验室, 兰州, 甘肃 730000, 中国; 2.北京师范大学资源学院, 北京 100875, 中国
推荐引用方式 GB/T 7714	侯彩霞,周立华,文岩,等. 社会-生态系统视角下沙漠化逆转定量评价以宁夏盐池县为例[J]. 中国科学院西北生态环境资源研究院, 北京师范大学,2017,37(18):6186-6195.
APA	侯彩霞,周立华,文岩,赵敏敏,&陈勇.(2017).社会-生态系统视角下沙漠化逆转定量评价以宁夏盐池县为例.生态学报,37(18),6186-6195.
MLA	侯彩霞,et al."社会-生态系统视角下沙漠化逆转定量评价以宁夏盐池县为例".生态学报 37.18(2017):6186-6195.