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Trade-offs between Economic Benefits and Ecosystem Services Value under Three Cropland Protection Scenarios for Wuhan City in China
来源: 时间:2020-07-11

英文标题:Trade-offs between Economic Benefits and Ecosystem Services Value under Three Cropland Protection Scenarios for Wuhan City in China

作者:王立业,柯新利,Assem Abu Hatab

来源:Land 2020, 9(4), 117; https://doi.org/10.3390/land9040117

研究问题:快速的城市化在带来社会、经济的进步与人类福祉的提升的同时导致了生态用地的大量流失,造成了人类所能够接受到的生态系统服务的降低。已有研究主要关注于城市化过程中土地利用的经济效益的提升或其对于生态系统服务的影响,少有研究研究城镇化过程中土地利用的经济效益与生态系统服务价值之间的权衡关系。因次,本文的主要研究问题包括:城镇化过程中土地利用的经济效益与生态系统服务价值之间的关系是什么?不同的耕地保护政策如何影响土地利用的经济效益与生态系统服务价值之间的关系?

研究方法:LANDSCAPE模型,C-D生产函数,生态系统服务价值当量因子法

论文摘要:

Over the past few decades urbanization and population growth have been the main trend all over the world, which brings the increase of economic benefits (EB) and the decrease of cropland. Cropland protection policies play an important role in the urbanization progress. In this study, we assess the trade-offs between EB and ecosystem services value (ESV) under three cropland protection policy scenarios using the LAND System Cellular Automata for Potential Effects (LANDSCAPE) model. The empirical results reveal that trade-offs between EB and ESV in urbanizing areas are dynamic, and that they considerably vary under different cropland protection policy scenarios. Especially, the results identify certain “turning points” for each policy scenario at which a small to moderate growth in EB would result in greater ESV losses. Among the three scenarios, we found that the cropland protection policy has the most adverse effect on trade-offs between EB and ESV and the results in the business as usual scenario have the least effect on the trade-offs. Furthermore, the results show that a strict balance between requisition and compensation of cropland is an inappropriate policy option in areas where built-up areas are increasing rapidly from the perspective of mitigating conflict between EB and ESV and the numbers of cropland protection that restrained by land use planning policy of Wuhan is a better choice.