摘要
从生态效益、经济效益和资源利用效率三个方面选择15个代表性指标,将传统法和遗传算法相耦合,选择投影寻踪技术评价分析辽宁省14个地区不同年份的农业水利用效率。研究表明:通过优化投影方向能够很好的反映农业水各状态变量贡献率和方向性,各地区分类和评价结果符合大陆性季风气候区农业水资源利用现状。
15 representative indexes are selected from three aspects of ecological benefit,economic benefit and resource utilization efficiency.The traditional method and genetic algorithm are combined to evaluate and analyze the agricultural water use efficiency of 14 regions in Liaoning Province in different years with the projection pursuit technology.The results show that the contribution rate and direction of each state variable of agricultural water can be well reflected by optimizing the projection direction,and the classification and evaluation results of each region accord with the current situation of agricultural water resources utilization in continental monsoon climate region.
作者
王彪东
WANG Biao-dong(Jianchang County Water Affairs Service Center, Huludao 125300,China)
出处
《黑龙江水利科技》
2020年第2期5-9,共5页
Heilongjiang Hydraulic Science and Technology
关键词
农业水资源
PP模型
效率评价
辽宁省
agricultural water
PP model
efficiency evaluation
Liaoning Province
