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水利经济计算的基本目的是通过对规划方案和各项技术措施的分析与评价,以选择经济上的最优方案。水利工程经济效果的大小,应通过其所得和所费来衡量,如所得大,就是经济效果大,反之则小。但工程的经济效果只是总效果的一个方面,在进行方案评价时,还要注意从技术、政治、国防、社会以及生态环境等方面综合考虑,使计算成果能较全面地反映出方案的经济合理性及目的性。水利工程经济研究主要步骤为:
The basic purpose of economic calculation of water conservancy is to select the optimal economic plan through the analysis and evaluation of planning plans and various technical measures. The size of the economic effect of a water conservancy project should be measured by its income and expenses. If the income is large, it means that the economic effect is large and vice versa. However, the economic effect of the project is only one aspect of the overall effect. When evaluating the program, attention should also be paid to comprehensive consideration from the aspects of technology, politics, national defense, society and ecological environment so that the calculation results can more fully reflect the economic rationality of the program Sexual and purposive. The main steps of economic research of water conservancy project are as follows: