江西农业学报2016，Vol.28Issue(11)：94-98,5.DOI:10.19386/j.cnki.jxnyxb.2016.11.21
基于投影寻踪模型的安康市土地生态安全评价
Ecological Safety Assessment of Land in Ankang City Based on Projection Pursuit Model
张红侠 1成忠旭 1张孝存1
作者信息
- 1. 商洛学院 城乡规划与建筑工程学院，陕西 商洛 726000
- 折叠
摘要
Abstract
In this article, the ecological safety assessment system of land in Ankang City was established by selecting 17 in-dexes from the aspects of nature, society and economy, and the corresponding exploration was conducted by using projection pur-suit model.The results indicated that the projection value in Ankang rose from 0.5427 in the year 2001 to 3.2170 in 2011, sug-gesting that the degree of land ecological safety increased continuously .The land ecological safety in Ankang City was threatened mainly by the land economic and ecological system , while the restriction of the land social and ecological system to the land eco-logical safety decreased continuously at the same time.The per-capita water resource rate, the population density, the grain yield per unit area, the agricultural, forestry, animal husbandry and fishery output value per unit area , and the mechanization level per unit area were the main limiting factors of the land ecological safety in Ankang City .关键词
土地生态安全/投影寻踪模型/加速遗传算法/安康市Key words
Land ecological safety/Projection pursuit model/Accelerating genetic algorithm/Ankang city分类
管理科学引用本文复制引用
张红侠,成忠旭,张孝存..基于投影寻踪模型的安康市土地生态安全评价[J].江西农业学报,2016,28(11):94-98,5.
