干旱区生态环境知识资源中心(Arid): 基于PSR框架的内蒙古自治区土壤保持服务分区

Arid

	基于PSR框架的内蒙古自治区土壤保持服务分区
其他题名	Soil conservation service zoning in the Inner Mongolia Autonomous Region based on PSR framework
	彭建; 武文欢; 刘焱序; 胡熠娜
来源期刊	生态学报
ISSN	1000-0933
出版年	2017
卷号	37 期号:11 页码:3849-3861
中文摘要	土壤侵蚀是中国北方重要的生态问题,内蒙古自治区位于干旱半干旱地区,是中国北方典型的土壤侵蚀区。针对以往生态功能分区分析框架复杂多样、权重设定人为主观等问题,以内蒙古自治区为例,基于压力-状态-响应系统分析框架,从气候背景-土壤保持-植被条件三方面构建指标体系,运用自组织特征映射(SOFM)神经网络和GIS空间分析技术,以1280个小流域为基本单元进行土壤保持服务分区,按照分区单元的聚集度对多种方案进行优选,并依据区域共轭性原则最终将研究区划分为3个土壤保持服务区和11个土壤保持服务亚区。
英文摘要	Soil erosion has been a critical ecological issue in northern China. Inner Mongolia Autonomous Region is located in the arid and semi-arid area, which is a typical soil erosion area in northern China. Based on the analytical framework of pressure-state-response (PSR),this study takes the Inner Mongolia Autonomous Region as the study area,and constructs the index system from three aspects: climatic background, soil conservation, and vegetation condition. It aims at addressing the remaining issue of complexity and subjectiveness in weigh specification towards ecological function zoning in the previous studies. In the study, self-organizing feature map (SOFM) neural network and GIS spatial analysis technique were applied to carry out the soil conservation service zoning with the 1280 small watersheds as the basic unit and the schemes were optimized according to the aggregation degree of the zoning units. The Inner Mongolia Autonomous Region was divided into three ecological functional zones and eleven sub-zones based on the principle of regional conjugation. The three ecological functional zones include Soil Conservation Services Protection Area, Soil Conservation Services Controlling Area, and Soil Conservation Services Rehabilitation Area. According to the characteristics of zoning, the results clearly indicate the zonal distribution of climatic background,soil conservation service and vegetation condition in Inner Mongolia,and quantify the characteristics and spatial differences of the ecological functions at watershed scale more comprehensively. The result of the optimal soil conservation service zoning was compared to the annual average temperature contours and annual precipitation contours in Inner Mongolia. It shows that the ecological function zoning results obtained by SOFM neural network model were in good agreement with the spatial patterns of basic ecological elements. The zoning scheme indicates a significant gradient and is consistent with changes in temperature and precipitation.
中文关键词	土壤保持服务 ; RUSLE模型 ; RWEQ模型 ; SOFM神经网络 ; 内蒙古自治区
英文关键词	soil conservation service RUSLE model RWEQ model SOFM neural network Inner Mongolia Autonomous Region
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Agriculture
WOS研究方向	Agriculture
CSCD记录号	CSCD:6015836
来源机构	北京大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236480
作者单位	彭建, 北京大学城市与环境学院, 地表过程分析与模拟教育部重点实验室;;城市人居环境科学与技术重点实验室, 北京 100871, 中国.; 武文欢, 北京大学城市与环境学院, 地表过程分析与模拟教育部重点实验室, 北京 100871, 中国.; 刘焱序, 北京大学深圳研究生院城市规划与设计学院, 城市人居环境科学与技术重点实验室, 深圳, 广东 518055, 中国.; 胡熠娜, 北京大学深圳研究生院城市规划与设计学院, 城市人居环境科学与技术重点实验室, 深圳, 广东 518055, 中国.
推荐引用方式 GB/T 7714	彭建,武文欢,刘焱序,等. 基于PSR框架的内蒙古自治区土壤保持服务分区[J]. 北京大学,2017,37(11):3849-3861.
APA	彭建,武文欢,刘焱序,&胡熠娜.(2017).基于PSR框架的内蒙古自治区土壤保持服务分区.生态学报,37(11),3849-3861.
MLA	彭建,et al."基于PSR框架的内蒙古自治区土壤保持服务分区".生态学报 37.11(2017):3849-3861.