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- Title
山西省粮食生产水足迹时空特征及水资源利用评价.
- Authors
邓祥征; 王文宣; 李志慧
- Abstract
Grain production in Shanxi Province is very unique in the Yellow River Basin and even in the whole country, and its special production structure of few staple grains and many miscellaneous grains plays an important role in stabilizing grain supply in the region and promoting the high-quality development of agricultural specialty industries. This study focused on the utilization of water resources in grain production in Shanxi Province, evaluated the water scarcity situation of grain production in Shanxi Province from 2011 to 2021, accounted for the spatial and temporal distribution of water footprints under different grain production structures, evaluated the efficiency of water resources utilization in grain production, and built a three-dimensional analytical framework from the scarcity pressure, footprint and efficiency response of water resources utilization in grain production and proposed a three-dimensional analysis framework that took into account the water scarcity of grain production in Shanxi Province and its special production structure. A three-dimensional analysis framework was built from the scarcity pressure and efficiency response of food production, and management measures were proposed to balance food production and optimal utilization of water resources in various cities in Shanxi Province. The results show that a) the scarcity of water resources in Shanxi Province generally improves from 2011 to 2021, with the scarcity index decreasing from 1.36 in 2011 to 0.87 in 2021. b) The total water footprint of grain production decreases by 8.9%, while the water footprint of miscellaneous grains, such as sorghum, cereal, yams and other new staple crops, increases from 11% in 2011 to 15% in 2021. c) The total water footprint of food production shows the spatial characteristics of "less in the north and more in the south, less in the east and more in the west", with an average annual total water footprint of more than 1.5 billion m³ in southwestern Shanxi, which is the area with the highest total water footprint of food production in the region. d) The efficiency of water resources utilization for food production has been improved, with more than 20% of the regions realizing effective water resources utilization in the food production process.
- Publication
Yellow River, 2023, Vol 45, Issue 9, p52
- ISSN
1000-1379
- Publication type
Article
- DOI
10.3969/j.issn.1000-1379.2023.09.009