JOURNAL OF NATURAL RESOURCES >
Analysis of water security risk of cash forest expansion in the Loess Plateau in terms of water footprint:A case study of apple planting
Received date: 2021-10-25
Revised date: 2022-04-07
Online published: 2022-12-28
The continuous expansion of the planting area of cash forest in the Loess Plateau, which is dominated by apples, has caused increasing water consumption and potential water security risk. Quantifying the water footprint of apple production and discussing the water security risk affected by the apple production expansion are of great significance to scientifically guide the healthy development of the future apple planting in the plateau. Based on ArcGIS and CROPWAT software, 44 cities (prefectures) in the Loess Plateau from 2000 to 2019 were selected to explore the spatial and temporal distribution patterns of apple water footprint and water security risk. The results showed that from 2000 to 2019, the area of apple planting in the Loess Plateau increased by 1.3 times and the yield increased by 3.1 times, presenting a development trend of "moving toward the north and expanding to the west". The spatial distribution of apple green water footprint was basically consistent with that of rainfall, both of which decreased from southeast to northwest, but was opposite to the spatial distribution of blue water footprint. The total apple water footprint increased from 7.442 billion m3 to 10.804 billion m3, the proportion of apple water footprint to agricultural water consumption increased from 42.78% to 65.63%, and the proportion of gray water footprint reached 13.88%, which reflected the serious water security risk posed by apple production in the Loess Plateau. Therefore, further expansion of apple planting in the plateau should be controlled moderately. This study can provide a basis for evaluating the water security risk behind the expansion of apple planting in the Loess Plateau.
TIAN Jia-xin , DANG Xiao-hu , YANG Zhi , LI Peng , CAO Xiao-shu , FAN Liang-xin , LI Lin . Analysis of water security risk of cash forest expansion in the Loess Plateau in terms of water footprint:A case study of apple planting[J]. JOURNAL OF NATURAL RESOURCES, 2022 , 37(10) : 2750 -2762 . DOI: 10.31497/zrzyxb.20221019
感谢国家科技基础条件平台—国家地球系统科学数据中心(
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