| Summary: | In this paper, AHP method is used to construct the evaluation model of trough solar heat collection and irrigation system (TSHCIS) engineering benefits, and the overall goal of TSHCIS engineering benefits is decomposed into several sub-objectives. The indexes of the sub-objectives are evaluated from economic, social, ecological and other aspects. After the decomposition and synthesis, we have a clearer understanding of the engineering benefits of TSHCIS. This paper proposes an evaluation index system for evaluating the benefits of TSHCIS projects based on the social, economic, and physical geographic characteristics of TSHCIS construction. The AHP method is used to construct the criterion layer and the index layer in the index system, and the judgment matrix is established to check the consistency. At the same time, the ranking weight vector of each element to the overall goal is evaluated from top to bottom, and the contribution of each index to the project benefit evaluation can be obtained from the total weight vector. Finally, the evaluation of TSHCIS constructed in Panzhihua City was carried out to verify the effectiveness of the AHP method in evaluating TSHCIS.
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