基于灰色关联分析法的东北地区主要粮食作物综合效益评价

Evaluation on Comprehensive Benefit of Major Grain Crops in Northeast China Based on Grey Relational Analysis

为合理布局作物生产,利用东北地区71个站点的气象资料以及年鉴资料,运用灰色关联分析法对东北地区主要粮食作物的综合效益,按产量效益、经济效益和生态效益各项指标进行综合评价。结果表明:吉林省南部和中部平原及辽宁省大部地区最适宜种植玉米;黑龙江省大部地区及辽宁省东南部地区最适宜种植水稻;而大豆适宜种植在东北北部、东部低温或多雨地区。

To rationally distribute crops, using the data of meteorology in 71 meteorological stations in Northeast China and the data of yearbook, based on grey relational analysis method,the comprehensive benefit of major grain crops（maize, rice, soybean）in Northeast China was evaluated from various indexes of productive benefit, economic benefit and ecological benefit. The results showed that south and middle plain of Jilin province and most of Liaoning province were suitable for planting maize,most of Heilongjiang province and southeast of Liaoning province were suitable for rice, north of Northeast China, while soybean was suitable to grow in north and east regions of Northeast China where cold and rainy.