How to Evaluate the Rice Cultivation Suitability?
How to Evaluate the Rice Cultivation Suitability?作者机构:Yangzhou Station of Soil and Fertilizer Yizheng Station of Soil and Fertilizer
出 版 物:《Asian Agricultural Research》 (亚洲农业研究(英文))
年 卷 期:2013年第5卷第12期
页 面:59-64页
基 金:National Farmland Survey and Evaluation Project(201249) Yangzhou"Luyang Jinfeng Plan"Outstanding Doctor Talent Introduction Pro-ject(2011YB077)
主 题:Rice Farmland suitability Suitability index Evalua
摘 要:To rationally allocate farmland resources,and scientifically make farming industrial planning,we take Yizheng City in Jiangsu Province as the research object,and select 13 *** on Farmland Resources Management Information System in Yizheng City,we establish AHP model,and membership function model,for the evaluation of farmland suitability of *** results show that the farmland area in the highly suitable areas accounts for 10.2%of the total farmland area;the farmland area in the suitable areas accounts for 56.08%of the total farmland area;the farmland area in the marginally suitable areas accounts for 25.50%of the total farmland area;the farmland area in the unsuitable areas accounts for 8.22%of the total farmland *** is significant positive correlation between the actual yield of rice surveyed and suitability index obtained through evaluation(R2=0.1964,319 samples);the actual yield of rice in the highly suitable areas is higher than in the marginally suitable areas and suitable areas,and the rice yield is the lowest in the unsuitable areas.