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1.内江师范学院地理与测绘科学学院, 四川 内江 641100
2.西安建筑科技大学公共管理学院, 西安 710055
Received:20 November 2025,
Revised:2026-01-06,
Accepted:28 February 2026,
Online First:23 March 2026,
Published:28 August 2026
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谢贤健,吕奕葳,黄安.四川省五大经济区耕地景观格局演变特征及其驱动因子[J].水土保持学报,2026,40(4):465-476.
Xie Xianjian, Lü Yiwei, Huang An. Evolution Characteristics and Driving Factors of Cultivated Land Landscape Patterns in Five Major Economic Zones of Sichuan Province[J]. Journal of Soil and Water Conservation, 2026, 40(4):465-476.
谢贤健,吕奕葳,黄安.四川省五大经济区耕地景观格局演变特征及其驱动因子[J].水土保持学报,2026,40(4):465-476. DOI: 10.13870/j.cnki.stbcxb.2026.04.002. CSTR: 32310.14.stbcxb.2026.04.002.
Xie Xianjian, Lü Yiwei, Huang An. Evolution Characteristics and Driving Factors of Cultivated Land Landscape Patterns in Five Major Economic Zones of Sichuan Province[J]. Journal of Soil and Water Conservation, 2026, 40(4):465-476. DOI: 10.13870/j.cnki.stbcxb.2026.04.002. CSTR: 32310.14.stbcxb.2026.04.002.
目的
2
为揭示四川省从省域到经济区的耕地景观时空分异规律,量化自然与社会经济因素对格局变化的贡献及交互效应。
方法
2
基于多源遥感与GIS技术,在ArcGIS和Fragstats平台构建景观生态时空演变模型,结合地理探测器和熵权-TOPSIS法,系统解析2000—2022年四川省省域及五大经济区耕地景观格局的空间异质性特征及驱动机制。
结果
2
1) 2000—2022年四川省耕地整体呈“规模萎缩、破碎加剧、连通下降”趋势。旱地面积减少13 961.0 km²,缩减率高于水田,斑块数量激增,景观优势度持续削弱。2)五大经济区差异显著,成都平原经济区耕地“量减形碎”;川西经济区呈“水田增、旱地缩”;川东北经济区水田与旱地面积减幅均超19%;川南经济区旱地面积减少11.58%,局部保留核心耕作区;攀西经济区旱地面积减少27.49%,破碎化程度最高。3)驱动机制方面,自然与社会经济因子交互作用均以双因子增强及非线性增强为主,其中人口密度交互解释力最高(0.97)。人为驱动影响在各区域普遍增强,经济发达区受城镇化与工业化主导;生态敏感区以自然约束与政策调控为主;传统农区则陷入“农业衰退-人口流失”循环。
结论
2
研究结果可为四川省耕地生态安全格局构建与差异化管控提供理论依据,助力耕地景观可持续利用与国土空间治理进程。
Objective
2
This study aims to reveal the spatiotemporal differentiation patterns of cultivated land landscape from the provincial scale to economic zones in Sichuan Province, and to quantify the contributions and interactive effects of natural and socio-economic factors on landscape pattern changes.
Methods
2
Based on multi-source remote sensing and geographic information system (GIS) technology, a spatiotemporal evolution model of landscape ecology was constructed on the ArcGIS and Fragstats platforms. Combined with the geodetector and entropy weight-TOPSIS method, the spatial heterogeneity characteristics and driving mechanisms of cultivated land landscape patterns in Sichuan Province and its five major economic zones from 2000 to 2022 were systematically analyzed.
Results
2
1) From 2000 to 2022, the cultivated land in Sichuan Province generally showed a trend of scale reduction, fragmentation intensification, and connectivity decline. The area of dryland decreased by 13 961.0 km², with a higher reduction rate than that of paddy fields. The number of patches increased sharply, and landscape dominance continued to weaken. 2) The five major economic zones exhibited significant differences. The Chengdu Plain Economic Zone showed quantity reduction and shape fragmentation. The Western Sichuan Economic Zone presented paddy field expansion and dryland shrinkage. Both paddy fields and dryland in the Northeast Sichuan Economic Zone decreased by more than 19%. The area of dryland in the Southern Sichuan Economic Zone decreased by 11.58%, with local retention of core cultivated areas. The area of dryland in the Panxi Economic Zone decreased by 27.49%, with the highest degree of fragmentation. 3) In terms of driving mechanisms, the interactions between natural and socio-economic factors were dominated by two-factor enhancement and nonlinear enhancement effects. Among them, population density had the highest interactive explanatory power (0.97). The influence of human-driven factors generally increased across regions. Economically developed areas were mainly driven by urbanization and industrialization, ecologically sensitive areas were dominated by natural constraints and policy regulation, and traditional agricultural areas were trapped in a cycle of agricultural decline and population loss.
Conclusion
2
The findings of this study can provide a theoretical basis for the construction of an ecological security pattern for cultivated land and differentiated management strategies in Sichuan Province, thereby supporting the sustainable use of cultivated land landscapes and the process of territorial spatial governance.
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