珠江三角洲三水市种植业耕作模式的综合评价
Comprehensive Evaluation of the Cultivation System in Sanshui City of the Northwest Pearl River Delta
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摘要: 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。Abstract: 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.
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Keywords:
- cultivation mode /
- evaluation /
- benefit /
- Pearl River Delta
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