@article{LIU2025, 
author = {Dong LIU and Zihe ZHOU and Xiangmin ZHANG and Liangliang ZHANG and Xiaochen QI},
title = {Measurement and analysis of operation efficiency of regional Water-Land-Energy-Food coupling system based on HPO-SVM},
year = {2025},
journal = {Water Resources Protection},
volume = {41},
number = {5},
pages = {247-257},
keywords = {WLEF coupling system, hunter-prey optimization, support vector machine, operation efficiency measure, Jiansanjiang Branch},
url = {https://www.sciopen.com/article/10.3880/j.issn.1004-6933.2025.05.027},
doi = {10.3880/j.issn.1004-6933.2025.05.027},
abstract = {In order to systematically evaluate the water-land-energy-food (WLEF) coupling system operation efficiency in Jiansanjiang Branch of Beidahuang Group, the evaluation index of the comprehensive evaluation index system for the operational efficiency of the WLEF coupling system were screened based on the R-clustering-factor analysis model, and the operation efficiency of the WLEF coupling system of the Jiansanjiang Branch was evaluated by the hunter-prey optimization improved support vector machine (HPO-SVM) model, and the performance of the HPO-SVM model was analyzed. The results show that the operation efficiency of the WLEF coupling system in the Jiansanjiang Branch company has generally shown a fluctuating upward trend from 2002 to 2021, with an average annual growth rate of 3.24%, and its spatial distribution shows a trend of being higher in the southeast than in the northwest. The key driving factors affecting the efficiency of the system operation are the proportion of effective irrigation area, per capita agricultural output value, cultivated land productivity, agricultural machinery input index per unit area, the proportion of water conservancy project investment, and the energy consumption of ten thousand yuan GDP. Compared with the other two models of comparative analysis, the HPO-SVM model shows significant advantages in fitness, stability, rationality, and evaluation accuracy.}
}