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本文在调查研究的基础上,以生态平衡的观点,对浙江北部杭嘉湖地区的德清县陆家湾大队与桐乡县众安大驮的农田生态系统作了初步分析。 这两个大队的大田作物生产、畜牧业、蚕桑业、渔业构成了一个复杂的能量转化和物质循环系统,形成了较为合理的生态平衡,从而保证了提高农业生产力,实现连续七、八年每年粮食平均亩产超过2000斤的持续稳产高产,并做到了用地与养地相结合。这可以从有机物质、氮素的循环和土壤肥力因素的改善得到证明。 这两个大队是平原水网地区农田生态系统生态平衡的一种模式,虽然它们还有不足之处,但确有很多优点和经验,能给我们启发,值得学习与提倡。
Based on the investigation and study, from the perspective of ecological balance, this paper makes a preliminary analysis of the farmland ecosystem of Deqing County Lujiawan Brigade in Hangjiahu area in northern Zhejiang Province and Zhong’an Dayaku in Tongxiang County. The crop production, livestock husbandry, silkworm mulberry industry and fisheries of these two brigades constitute a complex system of energy conversion and material circulation, resulting in a more rational ecological balance, thereby ensuring the improvement of agricultural productivity and achieving a succession of seven or eight years in a row The average grain output per mu more than 2000 pounds sustained stable and high yield, and achieved the combination of land and raising land. This can be evidenced by the organic matter, the nitrogen cycle and the improvement of soil fertility. These two brigades are a model of ecological balance of farmland ecosystems in the plain water network. Although they have some shortcomings, they do have many advantages and experiences that can inspire us and deserve to be learned and promoted.