南京古泉农村生态工程设计和建设的研究 Ⅹ.古泉生态工程实验场生态系统结构模型的应用研究

STUDIES ON THE DESIGN AND CONSTRUCTION OF THE NANJING GUQUAN RURAL ECOLOGICAL PROJECT.X.Study on Application of Structural Model for Nanjing Guquan Ecological Engineering Experimental Farm

本文运用结构模型对南京古泉生态工程实验场的生态系统结构进行分析和结构优化。发现:1.该实验场的系统结构应分成四个层次,其中有两个层次是由循环单元构成。2.能量流动方向必须遵循层次分布顺序,否则该生态系统不能获得最大经济效益和生态效益。3.古泉生态工程实验场只有按由结构模型得出的优化结构组织生产,其生态效益和经济效益才能显著提高。据估计,在不增加投资的情况下,新结构的产值将是原结构产值的1.5倍以上。

In this paper,the structural model was applied in Nanjing Guquan ecological engineering experimental farm to analyse and optimize for its ecosystem structure. The results obtained were as follows! 1.The experimental farm should be classified four layers. Two of four layers were composed of recycling units. 2.The orientation of energy flow must follow the order of layer distribution, otherwise, this ecosystem can not gain optimal ecolomic benifits.3.The ecolomic binifits of experimental farm will be raised distinctly while organization of production according to the optimal structure. It was estimated that the output value of the new structure will be at least 1.5 times as that of the original structure without any additional investment.