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侯彩霞,周立华,文岩,赵敏敏.基于社会生态系统的沙漠化逆转定量评价-以宁夏盐池县为例.生态学报,2017,(18).http://dx.doi.org/10.5846/stxb201606301309  
基于社会生态系统的沙漠化逆转定量评价-以宁夏盐池县为例
Quantitative Research of Desertification Control Based on Social-ecological System in Yanchi of Ningxia
投稿时间:2016-06-30  最后修改时间:2017-04-10
DOI: 10.5846/stxb201606301309
关键词沙漠化逆转  社会生态系统  干扰强度  干扰连通度
Key WordsDesertification Control  Social ecological system  Disturbance intensity  Disturbance connectivity
基金项目国家自然科学基金项目(41471436,41471436,41601587);国家科技支撑计划项目(2015BAC06B01)
作者单位E-mail
侯彩霞 中国科学院西北生态环境资源研究院 沙漠与沙漠化重点实验室 houcaixia1987@163.com 
周立华 中国科学院西北生态环境资源研究院 沙漠与沙漠化重点实验室中国科学院科技战略咨询研究院 lhzhou@lzb.ac.cn 
文岩 北京师范大学 资源学院  
赵敏敏 中国科学院西北生态环境资源研究院 沙漠与沙漠化重点实验室  
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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稳定性可以为管理提供理论支持。本文以宁夏盐池县为例,基于MODIS NDVI产品数据,运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2000-2015年间不同时间段内盐池县社会生态系统受干扰的空间分布。结果表明:①盐池县不同时间段内干扰的空间分布具有较大差异,2000-2004年强干扰主要集中于盐池县的南部;2004-2008年强干扰在北部、中部均有表现,南部的强干扰消失;2008-2012年强干扰的空间分布与2000-2004年类似,但南部的强干扰分别位于东、中、西三个小区域,并没有集中于一个区域,且北部强干扰区域进一步增强;2012-2015年强干扰的区域主要集中于县域的北方、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。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。
Abstract:
Effective management to desertification Control area are the essential links of desertification governance, social-ecological system stability in research desertification Control area can provide theory support for the management.This paper takes Yanchi of Ningxia province as an example, using MODIS NDVI data products, calculated social-ecological system disturbance intensity and connectivity in different spatial scales by using moving window computational algorithms, and analyzed the spatial distribution of the existing social ecological system disturbance on the different time period (2000-2015).The results showed that, (1) The disturbance has difference in different period and spatial distribution. The strong disturbance in 2000-2004 are mainly concentrated in the south; Strong disturbance in 2004-2008 are performed in the northern, central, southern noise disappear; In 2008-2012, the spatial distribution of strong disturbance is in the south of east, middle and west three small area, and there is no focus on so an area, and the strong disturbance further enhance in northern area; The areas of strong disturbance are mainly concentrated in the north, the Midwest and northwest of the county in 2012-2015. (2) There is a big different disturbance intensity and connectivity of social ecological system in different multi-scale levels. (3) Overall, in addition to a few small areas, social-ecological system disturbance intensity and connectivity is not large in most of the areas, the degree of desertification control is low, we remains to be greater efforts to desertification control.
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