Liu Hongxi, Soares-Filho Britaldo Silveira, Leite-Filho Argemiro Teixeira, Zhang Shanghong, Du Jizeng, Yi Yujun
Advanced Institute of Natural Sciences, Beijing Normal University, Zhuhai 519087, China.
State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China.
iScience. 2023 Apr 11;26(5):106641. doi: 10.1016/j.isci.2023.106641. eCollection 2023 May 19.
Severe arable land loss and ecological problems raise attention to protect/develop land for food and ecology demand. Spatial conflict appears in front of multidemand for urbanization, food, and ecology. Our study took China as an example and explicitly outlined spatial preference of urbanization, food, and ecology. From the aspect of land amount, there are enough lands to support multidemand with a surplus of agriculture land of 45.5 10 ha. However, spatial conflict widely appears among the multidemands. We tested the impacts of different priorities on urban pattern, crop yield, and ecology and found the priority of food > ecology > urbanization gave the best outcome. Our results verified the importance of including priority of land multidemand to avoid confusion and increase efficiency in the implementation of land policies.
严重的耕地流失和生态问题引发了人们对为满足粮食和生态需求而保护/开发土地的关注。在城市化、粮食和生态等多种需求面前，空间冲突显现出来。我们的研究以中国为例，明确勾勒出城市化、粮食和生态的空间偏好。从土地数量方面来看，有足够的土地来支持多种需求，农业用地盈余为4550万公顷。然而，多种需求之间广泛存在空间冲突。我们测试了不同优先级对城市格局、作物产量和生态的影响，发现粮食>生态>城市化的优先级产生了最佳结果。我们的结果验证了纳入土地多种需求优先级以避免混乱并提高土地政策实施效率的重要性。
