干旱区生态环境知识资源中心(Arid): 沙区聚落生态安全评价--以宁夏北部风沙区为例

Arid

	沙区聚落生态安全评价--以宁夏北部风沙区为例
其他题名	Ecological security evaluation in sandy areas: A case study in sandy areas of northern Yanchi
	庞超; 谢芮; 陈淑青; 吴秀芹
来源期刊	中国水土保持科学
ISSN	1672-3007
出版年	2015
卷号	13 期号:5 页码:72-78
中文摘要	沙区气候恶劣,风沙、干旱等自然灾害频发,沙区聚落的生态环境非常脆弱,聚落生态安全受到严重威胁。为了给沙区聚落生态安全提供理论支撑和科学依据,从聚落角度出发,以受风沙灾害严重威胁盐池县北部风沙区为研究区域,利用2012年土地利用数据,依据风沙灾害系统理论构建沙区聚落生态安全评价体系,对沙区聚落进行生态安全评价。利用构建的沙区聚落生态安全评价指标体系对盐池北部风沙区的聚落进行生态安全评价。结果显示:盐池北部风沙区286个聚落中,达到安全级别的有102个,占到了35.7%;危险的有184个,占64.3%。处于危险级别的聚落中,仍然存在一半左右的聚落处于中度危险级别以上。沙区聚落生态安全有待提高,急需采取相应的生态安全防护措施。
英文摘要	The ecological environment of settlements is fragile in sandy areas where natural disasters such as sand and drought are frequent,and seriously threaten the ecological security of settlements.The sandy area in northern Yanchi County, Ningxia Province, was selected as a case. The sandy area is located at the junction of Ningxia, Shaanxi and Mongolia, situated in the southern edge of the Mu Us Desert, and is a typical farming animal husbandry interlaced zone. The ecological security evaluation system towards settlements of the sandy area was built according to the sand disaster system theory. Then with the land use data in 2012, the ecological security evaluation of the settlement was carried out. Our aims were to provide some advice and reference to promote and protect the ecological security of settlements in sandy areas, give a guide to reasonable use of the land, and provide scientific basis to achieve regional social, economic and sustainable development of the ecological environment. Simultaneously, we attempted to explore research methods in ecological security, and provide a foundation for future studies of ecological safety in sandy areas.Under the guidance of sand disaster system theory, the ecological evaluation index system of the sandy area settlements was built. The evaluation system consists of six evaluation factors, i.e., soil type, soil organic carbon content, vegetation coverage, location of vegetation between settlement and sand land and so on.The results of ecological security evaluation of settlements in the sandy areas showed that there are 286 settlements in the study area, among which 102 settlements are safe, accounting for 35.7% of the total settlements;184 settlements are dangerous, accounting for 64.3% of the total settlements. About half of dangerous settlements are in moderate danger or above. So it needs to improve the ecological security of the settlements in sandy areas and corresponding ecological safety protection measures should be taken.
中文关键词	沙区 ; 聚落 ; 生态安全评价
英文关键词	sandy areas settlement ecological security evaluation
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:5555568
来源机构	北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/233820
作者单位	北京林业大学水土保持学院, 北京 100083, 中国
推荐引用方式 GB/T 7714	庞超,谢芮,陈淑青,等. 沙区聚落生态安全评价--以宁夏北部风沙区为例[J]. 北京林业大学,2015,13(5):72-78.
APA	庞超,谢芮,陈淑青,&吴秀芹.(2015).沙区聚落生态安全评价--以宁夏北部风沙区为例.中国水土保持科学,13(5),72-78.
MLA	庞超,et al."沙区聚落生态安全评价--以宁夏北部风沙区为例".中国水土保持科学 13.5(2015):72-78.