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Library Impact of cropland displacement on the potential crop production in China: a multi-scale analysis

Impact of cropland displacement on the potential crop production in China: a multi-scale analysis

Impact of cropland displacement on the potential crop production in China: a multi-scale analysis

Resource information

Date of publication
August 2020
Resource Language
ISBN / Resource ID
NARCIS:vu:oai:research.vu.nl:publications/ad8fef15-8554-47b7-ad59-eb7fce7e02b5
Pages
13

Changes in the amount and location of cropland areas may affect the potential crop production at different spatial scales. However, most studies ignore the impacts of cropland displacement on potential crop production. In many countries, cropland protection policies mainly aim for no loss in cropland area, while there is no restriction on change of cropland location. Taking China as the study area, we analyze the impacts of cropland displacement on potential crop production at four administrative levels during the period 2000 and 2018. At the national level, we find a net decrease in cropland area of 0.81 Mha, while another 19.63 Mha was displaced. The former led to a decrease of 4.20 Mton in potential crop production, while the latter resulted in a decrease of 43.26 Mton as a result of lower quality of the newly cultivated lands. In other words, cropland displacement explains 91% of the total loss in potential crop production at the national scale. However, the contribution of cropland displacement to total change in potential crop production is increasingly smaller at provincial level, municipal level, and county levels. These findings highlight the importance of geographic location on crop production and suggest that cropland policies should consider geographic location in addition to cropland area.

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Authors and Publishers

Author(s), editor(s), contributor(s)

Yang, Bohan
Ke, Xinli
van Vliet, Jasper
Yu, Qiangyi
Zhou, Ting
Verburg, Peter H.
Environmental Geography
Spatial Economics