Journal
JOURNAL OF ENVIRONMENTAL MANAGEMENT
Volume 341, Issue -, Pages -Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jenvman.2023.118062
Keywords
Cultivated land use efficiency; Water-land resources matching; Shared socioeconomic pathways; Sustainable resources management; China
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Rapid urban expansion, population growth, and limited cultivated land in China require a rethinking of the sustainable management of cultivated land. The long-term dynamic relationship between water-land resource endowment and cultivated land use plays a crucial role in effective management and use of cultivated land. However, this relationship, especially for future trends, has been insufficiently studied. In this study, we modified the water-land resource matching (WLRM) method, assessed cultivated land use efficiency (CLUE), and quantified historical changes using spatial panel regression models. Future trends were also simulated under three development scenarios.
Rapid urban expansion, population growth, and limited cultivated land in China necessitate rethinking the path to sustainable management of cultivated land. Understanding the long-term dynamic relationship between water-land resource endowment and cultivated land use contributes to effective management and use of cultivated land. However, few studies have systematically documented this relationship, especially for future trends. Accordingly, we modified water-land resource matching (WLRM) using a more refined grid-scale and assessed cultivated land use efficiency (CLUE), then deployed spatial panel regression models to quantify historical changes. We subsequently simulated future trends under three Shared Socioeconomic Pathways scenarios. The results showed that the relationship assumed an N-shaped curve in nation, while the curve followed a down-up-down pattern in economically less developed regions, largely because of structural transformations of production factors. Under three development scenarios, the stage-specific characteristics of production factors were pronounced, and the dynamic relationship varied across regions.
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