[1]苏广实,胡宝清,罗华艳.基于网格法与ANN的县域喀斯特土地可持续利用评价——以广西都安瑶族自治县为例[J].水土保持研究,2010,17(04):262-268.
　SU Guang-shi,HU Bao-qing,LUO Hua-yan.Evaluation of Sustainable Karst Land Use at County Regional Level Based on the Method of Lattice and ANN——A Case of Du’an County in Guangxi[J].Research of Soil and Water Conservation,2010,17(04):262-268.
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基于网格法与ANN的县域喀斯特土地可持续利用评价——以广西都安瑶族自治县为例

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 17 期数: 2010年04期 页码: 262-268 栏目: 出版日期: 2010-08-20
Title:
Evaluation of Sustainable Karst Land Use at County Regional Level Based on the Method of Lattice and ANN——A Case of Du’an County in Guangxi
作者:
苏广实1, 胡宝清2, 罗华艳2
1. 中国科学院 地球化学研究所环境地球化学国家重点实验室, 贵阳 55000;
2. 广西师范学院 资源与环境科学学院, 南宁 530001
Author(s):
SU Guang-shi1, HU Bao-qing2, LUO Hua-yan2
1. State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, CAS, Guiyang 550002, China;
2. Department of Resource & Environment Science, Guangxi Teachers Education University, Nanning 530001, China
关键词:
网格法; ANN; 喀斯特; 土地利用; 可持续利用评价
Keywords:
the method of lattice; ANN; Karst; land use; evaluation on sustainable use
分类号:
F301.24;P642.25
摘要:
探讨综合运用GIS、网格法和人工神经网络等技术和方法进行县域喀斯特土地可持续利用评价。以广西都安县为例，从资源环境、经济、社会等方面构建都安喀斯特土地可持续利用评价指标体系，利用2005年相关分析数据获取各指标数据；将都安县域划分成253个评价网格单元，按照网格单元指标数据提取原理获得的评价网格单元各评价指标数据，根据指标性质，运用效用函数进行标准化处理；最后，运用ANN的BP模型进行都安喀斯特土地可持续利用评价，绘制评价结果分布图。结果表明：构成都安喀斯特土地利用系统的资源环境、经济、社会等因素在空间分布上存在明显的差异性，其土地可持续利用亦呈现明显的空间差异性，在空间分布上可区分为：不可持续性、弱可持续性、中可持续性、较强可持性、强可持续性等5个等级，评价结果较为客观地反映了都安喀斯特土地可持续利用状况。
Abstract:
Applying varied research technologies and methods including GIS technology,method of lattice and Artificial Neural Networks,ect.,this paper studies on the evaluation of sustainable karst land use at county regional level.Taking Du’an county in Guangxi as an example,this paper builds an index system on the evaluation of sustainable Du’an karst land use from resource environment,economy,society and other aspects,and using related analytical data in 2005 to gain different kinds of index values.Du’an county was divided into 253 evaluation lattice units,in which gains different kinds of index values according to the theory of gaining index values,and utility function was used to carry on a standardized processing in accordance with the nature of the indexes.Finally,we used the BP (namely Back-Propagation Network) model of the ANN to evaluate the sustainable Du’an Karst land use,and to pain a map of evaluated results distribution.The evaluated results show that resource environment,economy,society and other factors,which form Karst land use system in Du’an,share obvious differences in spatial distribution,and its sustainable land use also has its own spatial differences.It was divided into five grades in spatial distribution as follows: unsustainability,low sustainability,moderate sustainability,relatively strong sustainability and strong sustainabillty.The evaluated results gave an objective reflection on the condition of sustainable Karst land use in Du’an.

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备注/Memo

收稿日期:2009-6-1;
基金项目:国家自然科学基金（40661005）;广西自然科学基金项目（067922）
作者简介:苏广实（1968- ），男，讲师，博士后，主要从事喀斯特土地资源开发与利用、石漠化成因与治理研究。E-mail：shuguangshi@163.com

更新日期/Last Update: 1900-01-01