干旱区研究

干旱区研究 >

2022 , Vol. 39 >Issue 2: 436 - 447

DOI: https://doi.org/10.13866/j.azr.2022.02.11

水资源及其利用

基于农业水足迹的水资源安全时空变化分析——以新疆和田地区为例

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  • 1.石河子大学水利建筑工程学院,新疆 石河子 832000
    2.中国水利水电科学研究院流域水循环模拟与调控国家重点实验室,北京 100038
    3.生态环境部卫星环境应用中心,北京 100094
张丽丽（1998-）,女,硕士研究生,主要从事水资源安全评价方面的研究. E-mail: 2573745042@qq.com

收稿日期: 2021-08-07

  修回日期: 2021-10-24

  网络出版日期: 2022-03-30

基金资助

国家自然科学基金(52179028);国家自然科学基金(51609260);中国工程院咨询项目(2020-XZ-15);中国工程院咨询项目(2020-XY-41)

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Spatial-temporal assessment of water resource security based on the agricultural water footprint: A case in the Hotan Prefecture of Xinjiang

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  • 1. College of Water & Architectural Engineering, Shihezi University, Shihezi 832000, Xinjiang, China
    2. State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resource and Hydropower Research, Beijing 100038, China
    3. Satellite Application Center for Ecology and Environment, Ministry of Ecology and Environment, Beijing 100094, China

Received date: 2021-08-07

  Revised date: 2021-10-24

  Online published: 2022-03-30

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摘要

和田地区是典型的内陆干旱区,研究区域水资源安全对指导水资源开发利用,促进社会经济与水资源可持续发展具有重要意义。本文基于水足迹理论,研究和田地区1989—2018年农作物生产和动物产品生产的农业生产水足迹的组成及时空变化,通过水足迹强度和水资源压力指标从水资源消耗和污染两个角度分析和评价水资源安全状态的时空变化。结果表明：和田地区农业生产水足迹经历了快速增长、缓慢增长和明显下降3个阶段,以农作物生产水足迹与动物产品生产水足迹约8:2的比例组成。各阶段变化以农作物生产蓝水足迹的增减为主导,在空间上呈西高东低分布;水足迹强度呈对数的趋势减小,至2018年缩小为原来的1/19。和田地区水资源压力值均在1以下变化,水资源多年来均处于安全状态,近10 a的水资源压力程度较高。多年来,和田地区农业生产水足迹随时间变化波动增长,水资源利用效率显著提升,而水资源压力也同步增加,不断威胁着区域的水资源安全。

关键词： 农作物生产水足迹; 动物产品生产水足迹; 灰水足迹; 水资源安全; 和田地区

本文引用格式

张丽丽,邓晓雅,龙爱华,高海峰,任才,李志赟 . 基于农业水足迹的水资源安全时空变化分析——以新疆和田地区为例[J]. 干旱区研究, 2022 , 39(2) : 436 -447 . DOI: 10.13866/j.azr.2022.02.11

Abstract

The Hotan Prefecture is a typical inland arid area. Regional water resource security assessment is of great significance for guiding the development and utilization of water resources and promoting the sustainable development of social economy and water resources. Based on the water footprint theory, this paper studied the composition and spatial-temporal changes of the water footprint of agricultural production in the Hotan Prefecture from 1989 to 2018, then analyzed and evaluated the temporal and spatial pattern changes of water resource security status through water footprint intensity and water resource pressure indicators. The water footprint for agricultural production in Hotan has experienced three stages: rapid growth, slow growth, and obvious decline. It is composed of an approximately 8:2 ratio in terms of the water footprint of crop production and that of animal products. Changes in each stage were dominated by the increase and decrease in the blue water footprint of crop production, which were spatially high in the west and low in the east. The intensity of the water footprint decreased according to a logarithmic trend; by 2018, it had shrunk to 1/19 of the original size. The pressure value for water resources in the Hotan Prefecture has not reached 1 for many years; the water resource have remained in a safe state, and the pressure on water resource has been relatively high in the past 10 years. Overall, the water footprint of agricultural production in Hotan has fluctuated and increased over time, the efficiency of water use has increased significantly, and the pressure on water resources has also increased simultaneously, constantly threatening the security of regional water resource.

Key words： water footprint of crop production; animal product production water footprint; grey water footprint; water resource security; Hotan Prefecture

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