| 摘要: |
| 目的 农业用水占总用水量比重大，量化区域农作物水足迹及其经济价值可为水资源有效利用提供基础。方法 文章基于水足迹理论，利用2010—2020年气象、农业经济统计数据，运用CROPWAT 8.0软件模型，对河南省作物生产和消费水足迹进行计算，对其经济效益进行评估，并分析农业水足迹虚拟水输出情况。结果 （1）2010—2020年作物生产水足迹呈下降趋势，下降8.88亿m3，消费水足迹呈增长趋势，增长率为14.71%；（2）不同作物产生的经济价值差距较大，蔬菜等经济作物消费水足迹的经济价值是小麦等粮食作物的3.55倍；（3）河南省粮食作物虚拟水净输出量大。水稻、小麦和玉米等为虚拟水净输出作物且输出量较大，输出大小依次是0.95亿m3、19.89亿m3和3.83亿m3。豆类、油料、蔬菜等为虚拟水净输入作物，净输入量大小依次为0.75亿m3、0.25亿m3和0.73亿m3。结论 揭示了作物耗水量及其经济价值，提出应动态关注消费水足迹管理，适当调整作物种植结构，减少虚拟水输出，为优化农业水资源管理提供参考。 |
| 关键词: 农业水足迹 作物生产水足迹 农产品消费水足迹 经济价值 河南省 |
| DOI：10.7621/cjarrp.1005-9121.20241101 |
| 分类号:TV213 |
| 基金项目:国家自然科学基金青年项目“环境规制下三峡库区水污染负荷精细测度与分配优化策略研究”（72004116）；三峡库区生态环境教育部工程研究中心开放基金课题（KF2022-07） |
|
| STUDY ON AGRICULTURAL WATER FOOTPRINT AND ITS ECONOMIC VALUE IN HENAN PROVINCE |
|
An Hui1,2, Cheng Chen1,2, An Min1,2,3, Tang Feng1,2, Dong Xiaohua1,2
|
|
1.Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, Yichang443002, Hubei, China;2.School of Water Resources and Environment, China Three Gorges University, Yichang443002, Hubei, China;3.School of Economics and Management, China Three Gorges University, Yichang443002, Hubei, China
|
| Abstract: |
| Agricultural water accounts for a significant proportion of total water consumption. Quantifying the regional crop water footprint and its economic value can provide a basis for effective utilization of water resources. Based on the water footprint theory, this paper calculated the water footprint of crop production and consumption in Henan province, evaluated its economic benefits, and analyzed the virtual water output of agricultural water footprint by using the meteorological and agricultural economic statistics data from 2010 to 2020, and the software model CROPWAT 8.0. The results were listed as follows. (1) Crop production water footprint decreased by 88.8 billion m3 during 2010 to 2020, while the water footprint of consumption increased by 14.71%. (2) The economic value produced by different crops differed greatly. The economic value of the consumption water footprint of cash crops such as vegetables was 3.55 times that of wheat and other food crops; (3) The net virtual water output of grain crops in Henan province was large. Rice, wheat and corn were the virtual water net output crops with large output, with the output size of 0.95 billion m3, 19.89 billion m3 and 3.83 billion m3, respectively. Legumes, oils and vegetables were the virtual water net input crops, and the net input amounts were 0.75 billion m3, 0.25 billion m3 and 0.73 billion m3, respectively. The results reveal the water consumption of crops and its economic value, and it proposes that dynamic attention should be paid to consumption water footprint management, appropriate adjustment of crop planting structure, and reduction of virtual water output, so as to provide a reference for optimizing agricultural water resources management. |
| Key words: agricultural water footprint water footprint of crop production water footprint of agricultural products consumption economic value Henan province |
