文献类型：期刊文献

英文题名：A Dual-Scale Zoning Strategy for Water-Energy-Food Supply and Demand Ecosystem Services

作者：Liu, Xinmiao[1] Zhang, Xudong[1] Shu, Qi[1] Yao, Zengwang[2] Wu, Hailong[1] Gao, Shenghua[1]

第一作者：Liu, Xinmiao

通信作者：Gao, SH[1]

机构：[1]Chinese Acad Forestry, Res Inst Forestry, Beijing 100091, Peoples R China;[2]Shandong Agr Univ, Coll Forestry, Tai An 271018, Peoples R China

年份：2025

卷号：11

外文期刊名：ECOSYSTEM HEALTH AND SUSTAINABILITY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001607560800001)】；

基金：This research was supported by the National Key Research and Development Program of China (grant number 2022YFF1303002).

语种：英文

摘要：The water-energy-food (WEF) nexus is essential for balancing resource use, yet most assessments overlook mismatches between administrative boundaries and ecological processes. This study developed a dual-scale framework for 105 counties and 89 sub-watersheds in Anhui Province, China, to quantify WEF supply-demand relationships and guide spatial governance. The InVEST (Integrated Valuation of Ecosystem Services and Tradeoffs) model, supply-demand index (SDI), 4-quadrant model, and entropy-weighted TOPSIS (Technique for Order Preference by Similarity to Ideal Solution) model were applied to assess water yield, carbon storage, and food production supply-demand relationships. Additionally, a 4-step methodology was developed to delineate management zones. The results showed the following: (a) From 2000 to 2020, water supply increased by about 92% while demand rose by 97%. Food supply grew by 63%, whereas demand declined by 37%. Energy supply remained nearly stable, but demand surged by more than 340%. Both county and sub-watershed scales captured these overall patterns, while the sub-watershed perspective revealed sharper local fluctuations. Cross-service interactions were observed with trade-offs between W-F and E-F and synergies between W-E supply, reflecting the complex ecological coupling within the WEF nexus. (b) Supply-demand matching indicated that water and energy were deficit-dominated and food was surplus-oriented. The food SDI improved more markedly at the sub-watershed scale (0.04 to 0.50) than at the county scale (0.01 to 0.37), showing stronger local recovery and more evident clusters of mismatches. (c) The study area was divided into 3 resource partitioning zones, 4 matching typologies, and 4 priority strategies, and merged into 9 integrated governance zones. This research can give complementary insights from dual scales enabling targeted strategies for integrated WEF management in ecosystems.