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Journal of Agriculture ›› 2024, Vol. 14 ›› Issue (6): 72-82.doi: 10.11923/j.issn.2095-4050.cjas2023-0252

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Comprehensive Evaluation Methodology for Rainwater Harvesting and Utilization Programs in Facility Agriculture

SUN Ye1(), HUANG Qian2,3(), WANG Wei2,3, XU Zhenghe1, JIANG Yao2,3, XUE Yan2,3   

  1. 1 University of Jinan, Jinan 250022, Shandong, China
    2 Water Resources Research Institute of Shandong Province, Jinan 250014, Shandong, China
    3 Shandong Province Key Laboratory of Water Resources and Environment, Jinan 250014, Shandong, China
  • Received:2023-11-13 Revised:2024-01-08 Online:2024-06-19 Published:2024-06-19

Abstract:

This study provides a theoretical basis for the design of efficient rainwater collection and utilization systems in facility agriculture, and it also serves as a reference for evaluating and selecting other efficient water-saving agricultural practices. By considering economic costs, technical performance, operational management, and environmental impacts, an evaluation index system for rainwater collection and utilization in facility agriculture was constructed. An improved rank correlation analysis and Analytic Hierarchy Process (Reelies-AHP-FSE) model were employed to analyze the influencing factors of efficient rainwater collection and utilization in facility agriculture. Expert ratings and sequential relationship methods were incorporated in the analysis. Fuzzy comprehensive evaluation was used to score different design options for rainwater transmission and storage systems, and the optimal solution for rainwater collection and utilization in the research area was selected. The results showed that the fuzzy comprehensive index value for the rectangular concrete channel with slope treatment was 3.922, indicating it as the preferred option for rainwater transmission. The fuzzy comprehensive evaluation value for the pipeline storage structure was 4.003, making it the optimal choice for rainwater storage. This evaluation method optimized the material and form selection based on factors such as terrain adaptability, water storage efficiency, and water quality maintenance, providing valuable insights for promoting the utilization of rainwater collection in facility agriculture.

Key words: improved rank correlation analysis, AHP fuzzy comprehensive evaluation, rainwater storage system, rainwater conveyance system, evaluation index system