水稻害虫治理措施的综合评价

在对广州有机水稻生产示范区稻田节肢动物多样性和害虫控制效果调查分析的基础上，应用层次分析法对研究区有机水稻生产过程中经济、社会和生态3方面的效益和代价进行了评价.结果表明：有机水稻生产方式下所产生的综合效益最大，权重值达0.5355;生态代价在综合代价中占据主导地位;化学防治病虫害的水稻生产方式付出的生态代价最惨重，其综合代价权重值达0.6252;从综合效益代价比（RPC）来看，有机水稻生产模式是较理想的模式，其RPC值达2.4776，符合农业可持续发展的要求.

Comprehensive assessment on management measures of rice insect pests.

Based on the investigation of arthropods biodiversity and insect pests controlling effect in the paddy fields of demonstration area of organic rice production in Guangzhou, a comprehensive assessment on the economic, social, and ecological profits and costs of organic rice production in study area was conducted by using analytic hierarchy process (AHP). The results indicated that among all insect pests controlling measures, organic rice planting had the best comprehensive benefits, with a weight value of 0.5355. Ecological cost played a dominant role in comprehensive costs, and that of traditional pesticide-based insect pests control was most cruel, with a weight value of comprehensive costs being 0.6252. From the viewpoint of the ratio of comprehensive profits to comprehensive costs (RPC), organic rice planting was better than any other insect pests controlling modes, whose RPC was 2.4776, being accorded with the requirement of sustainable development of agriculture.