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Chinese Agricultural Science Bulletin ›› 2019, Vol. 35 ›› Issue (35): 134-140.doi: 10.11924/j.issn.1000-6850.casb18090083

Special Issue: 现代农业发展与乡村振兴

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Agricultural Drought Resistance in Shandong: Comprehensive Evaluation Based on Combination Optimization

  

  • Received:2018-09-18 Revised:2019-12-02 Accepted:2019-04-12 Online:2019-12-16 Published:2019-12-16

Abstract: The paper aims to explore the strength, spatial distribution characteristics and main influencing factors of agricultural drought resistance in Shandong. Based on the analysis of the influencing factors of agricultural drought resistance, we constructed a comprehensive evaluation index system for agricultural drought resistance, and carried out the comprehensive evaluation for agricultural drought resistance in Shandong by using Analytic Hierarchy Process (AHP) method, Entropy method (EM) and Principal Component Analysis (PCA) method. To avoid the inconsistency of the evaluation results, we built the circulating revision of combination optimization model to unify the evaluation results. The results showed that: the agricultural drought resistances of 17 cities in Shandong were ranked by strength and weakness; according to the cluster analysis, the 17 cities were divided into 4 categories, and the main influencing factors of agricultural drought resistance in each type of area were obtained. The circulating revision of combination optimization evaluation method can improve the accuracy and consistency of the evaluation results. We propose corresponding measures for each type of area to improve the agricultural drought resistance, which provides a scientific reference for drought prevention planning and drought risk management in Shandong.

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