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本文对古泉生态工程实验场1985—1987年的物质、能量及资金的投入产出情况作了比较全面的总结和分析。三年来,全场创产值151.84×10~4元,获利润26.01×10~4元,向社会提供禽畜水产品达490t,只需4年就可回收全部投资。分析表明,实验场对能量和氮素的利用率分别达到15.2％和40％;通过对81.8％的禽畜粪便进行综合利用,使能量利用率提高27％,氮素利用率提高6％;整个场的产值、利润以及物质和能量的转化效率逐年出现上升趋势。作者认为,实验场取得了明显的经济、生态和社会效益,这种农业生态工程模式合理可行,因此可以在城郊和广大农村地区因地制宜地推广。
In this paper, we make a comprehensive summary and analysis of the material and energy inputs and outputs of the Quanzhou Ecological Experimental Station during 1985-1987. Over the past three years, the audience reached a record high of 151.84 × 10 4 yuan, a profit of 26.01 × 10 4 yuan, and provided 490 tons of livestock and aquatic products to the public. It took only 4 years to recycle all investments. The analysis shows that the utilization rate of energy and nitrogen reaches 15.2% and 40% in the experimental field respectively. Through comprehensive utilization of 81.8% of livestock excrement, the energy utilization rate increases by 27% and the nitrogen utilization rate increases by 6% Field output, profits and material and energy conversion efficiency year after year upward trend. The author believes that the experimental field has made obvious economic, ecological and social benefits. This agro-ecological engineering model is reasonable and feasible, and therefore it can be popularized in the suburbs and vast rural areas according to local conditions.