水稻主要病虫综合治理效益评估方法

STUDY ON THE BENEFIT EVALUATION METHOD OF RICE IPM

水稻主要病虫综合治理是一个多输入输出的管理系统,作者将层次分析法引入水稻病虫综合防治效益评估研究。采用专家咨询、数学分析等手段建立了水稻病虫综合防治效益评估层次模型,对总目标、亚目标、准则、指标层要素的权重值进行科学评估,并对指标层各个要素建立定量化方法,从而建立了一整套综合防治效益定量评估方法。通过对4个综合防治点1992—1993年早、晚稻的综合防治总体效益进行评估,评估结果基本客观地反映了当前水稻IPM的发展水平。

Rice IPM is a multiple input/output management system. In this paper, the analytical hierarchy process (AHP)method was used to explore the benefit evaluation of rice IPM. A hierarchy model for the benefit evaluation of rice IPM was established by applying expert consultations and mathematical analyses to scientifically determine the weight values of different hierarchy factors, namely, the overall-/sub- objects, norms and targets,etc. After the quantification of different factors were defined, a series of quantified IPM benefit evaluation methods were developed. The results of the total benefit evaluation of early/late rice IPM in four experimental bases belonged to two counties and a suburb of Nanning City objectively reflected the recent developmental levels of rice IPM.