珠江三角洲三水市种植业耕作模式的综合评价

采用层次分析法对广东三水市种植业18种耕作模式进行综合评价。结果表明，生态效益和经济效益相互协调的模式有：稻-荸荠、菜-萝卜-萝卜、瓜-豆-番茄和瓜-豆-菜等；两效益相互矛盾的模式有：瓜-瓜-菜-较好的发展前途。但有待优化作物结构和管理技术，提高系统功能和效益。

Comprehensive Evaluation of the Cultivation System in Sanshui City of the Northwest Pearl River Delta

The 18 cultivation systems in Sanshui City of Pearl River Delta was evaluated by the help of Analytic Hierarchy Process. The results showed that the four systems of rice-water chestnut, vegetable-radish-radish, wax gourd-bean-tomato and wax gourd-bean-vegetable were both good in ecological and economical benefit. The two systems of wax gourd-wax gourd-vegetable-vegetable-vegetable and wax gourd-vegetable-vegetable-vegetable were good in economical benefit, and bad in ecological benefit. The systems of rice-rice, rice-rice-potato and watermelon-rice were rather good in ecological benefit, but bad in economical benefit. There were some potentials to enhance their economical and ecological benefits in the systems of rice-peanut-sweet potato, wax gourd-wax gourd-vegetable and wax gourd-vegetable-vegetable. The composition of crops should be adjusted and the management should be improved.