水利水电科技进展Issue(2)：20-25,6.DOI:10.3880/j.issn.10067647.2013.02.005
基于投影寻踪的滨海盐碱地改良综合效应评价
Evaluation of the combined effect of coastal saline alkali soil reclaim based on the theory of projection pursuit
摘要
Abstract
To evaluate the combined effect of coastal saline-alkali soil reclaimed by subsurface pipe drainage system, the index system was established from the three aspects of economic benefit, soil quality and ecological environment. By using the projection pursuit method which is based on the particle swarm optimization, the projection pursuit grade evaluation model of coastal saline-alkali soil reclaim was established, and its establishment process was introduced in detail. According to this model, the multi-dimensional grading indexes can be integrated into the one-dimensional projection value, and the samples can be reasonably graded according to the functional relation between the projection value and the evaluation grading experienced value. The particle swarm optimization arithmetic was applied to optimize the projection function and the direction of projection pursuit which will help to calculate the grade of the evaluating sample. Application of this model in evaluation of the effect of Jiangsu coastal saline-alkali soil reclaim shows that, this model derived by samples data is reasonable, the precision of the model is relatively high, and the mean relative error is 6.3%.关键词
盐碱地改良/滨海/暗管改碱/投影寻踪/等级评价/粒子群优化算法Key words
saline alkaline soil reclaim/coastal region/subsurface pipe drainage for saline soil reclaim/projection pursuit/grade evaluation/particle swarm optimization arithmetic分类
农业科技引用本文复制引用
朱成立,陈婕,冯宝平,吕蓓蓓..基于投影寻踪的滨海盐碱地改良综合效应评价[J].水利水电科技进展,2013,(2):20-25,6.基金项目
“十一五冶国家科技支撑计划(2009BAC55B06) （2009BAC55B06）
