Ecological-economic optimization of land-use structure with the theory of Collected Information Complex Concert Control —A case study of Guyuan County of Ningxia Hui Autonomous Region

被引：0
|
作者：
王利文 [1 ]
机构：
[1] 大兴安岭职业学院
来源：
中国生态农业学报(中英文) | 2009年 / 04期
关键词：
土地利用; 全息协调理论; 结构优化; 退耕还林(草); 生态经济;
D O I：
暂无
中图分类号：
X171 [生态系统与污染生态学]; F301 [土地经济学];
学科分类号：
071012 ; 0713 ; 082802 ; 1204 ; 120405 ;
摘要：
运用全息协调的理论和方法,以黄土丘陵区宁夏固原县为例,选择粮食总产、输沙模数为目标因子,土地利用结构、降水量、积温为结构因子,利用1949003年的生态经济数据,对土地利用系统进行了生态-经济优化。结果表明:牧草地对粮食产量和水保效益起显著作用,土地利用系统优化可实现粮食总产增加和输沙模数下降的"双赢"。全息协调分析表明,粮食总产的最大值为18.92万t·a-1,最小输沙模数为1052.9t·km-2·a-1;目标因子相等权重条件下的土地优化利用调整方案是:在2003年基础上,将>25°全部和10°5°部分坡耕地共计3.07万hm2退耕还林（草）,输沙模数将由6000t·km-2·a-1降至2000t·km-2·a-1,粮食自给率能维持在70%左右。
引用
收藏
页码：776 / 781
页数：6
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