Spatial Evolution, Driving Mechanism, and Patch Prediction of Grain-Producing Cultivated Land in China

Zhiyuan Zhu, Jiajia Duan, Ruolan Li and Yongzhong Feng
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Zhiyuan Zhu: College of Agronomy, Northwest A&F University, Xianyang 712100, China
Jiajia Duan: College of Agronomy, Northwest A&F University, Xianyang 712100, China
Ruolan Li: College of Agronomy, Northwest A&F University, Xianyang 712100, China
Yongzhong Feng: College of Agronomy, Northwest A&F University, Xianyang 712100, China

Agriculture, 2022, vol. 12, issue 6, 1-12

Abstract: China has implemented strict policies for protecting cultivated land, and the Chinese government has focused on the non-grain production (NGP) of cultivated land. This study aimed to analyze the spatial evolution law of grain-producing cultivated land (GPCL) in China between 2000 and 2018, explore the mechanism of GPCL, and simulate the spatial characteristics of GPCL in 2036. We used the Geographic Information System (GIS) and a patch-generating land-use simulation model, a new model that proposes a land expansion analysis strategy by improving previous rule-mining methods. China’s grain production rate (GPrate) shows a gradual upward trend between 2000 (36.98%) and 2018 (47.18%). The mutual conversion of GPCL and non-grain-producing cultivated land (NGPCL) are the primary transfer types. The evolution of GPCL is driven by climatic, economic, and social factors, of which population density is the most important factor. GPCL expansion patches are distributed in densely populated, economically developed, and warm and humid plain areas. Further, the simulation results showed that the GPrate in 2036 is estimated to be 41.39%, with GPCL transfer-in significantly exceeding the amount transferred out. Our results further cultivated land evolution-associated research and provide a basis for formulating scientific land-use policies for cultivated land protection for other countries.

Keywords: China; cultivated land; grain production; spatial evolution; driving mechanism (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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