摘要
塔里木河流域地处西北干旱区是新疆重要的农牧资源交错带,研究该流域农业面源污染对促进流域农业绿色可持续发展具有重要意义。本文在灰水足迹理论的基础上,引入中国可持续发展评价指标,计算2006—2020年塔里木河流域农业灰水足迹、农业灰水足迹强度和农业灰水足迹效率,基于SDGs可持续发展框架分析其时空格局变化特征。结果表明:(1)2006年以来,塔里木河流域农业灰水足迹整体处于下降趋势,由2006年的6.95×10^(10)m^(3)(最高值)降至2017年的3.96×10^(10)m^(3)(最低值),畜牧业灰水足迹在流域农业灰水足迹中年均占比为91.3%,是流域农业灰水足迹的主要来源。喀什地区对流域农业灰水足迹贡献率最高。(2)塔里木河流域农业灰水足迹强度由2006年的4.48×10^(4)m^(3)·hm^(-2)下降至2017年的1.68×10^(4)m^(3)·hm^(-2),下降幅度为62.5%。2012年后,和田地区、喀什地区与克州农业面源污染下降幅度较为明显。(3)塔里木河流域农业灰水足迹效率由2006年的0.6元·m^(-3)上升为2019年4.03元·m^(-3)。2012—2020年塔里木河流域农业灰水足迹效率有一定程度的提升,不发达地区数量有所下降。为此,推进农区农牧耦合发展,调整畜禽养殖结构,提高畜禽粪便的资源化是塔里木河流域水环境改善关注的重点。
The dry Tarim River Basin in Northwest China acts as a crucial ecotone for Xinjiang’s agricultural and grazing resources.Therefore,studying agricultural nonpoint source pollution is essential for the green and sustainable growth of basin agriculture.This research offers a gray water footprint theory-based assessment index for China’s sustainable development.Furthermore,the Tarim River Basin’s regional and temporal variation patterns are examined using SDGs framework.The agricultural gray water footprint’s intensity and efficiencies are estimated for 2006-2020.The findings are shown as below.(1)The Tarim River Basin’s entire agricultural gray water footprint has reduced,falling from 6.95×10^(10)m^(3) in 2006(highest value)to 3.96×10^(10)m^(3)in 2017(lowest value).The main source of the gray water footprint is animal husbandry.(2)In the Tarim River Basin,the intensity of the agricultural gray water footprint has decreased by 62.5%from 4.48×10^(4)m^(3)·hm^(-2)in 2006 to 1.68×10^(4)m^(3)·hm^(-2)in 2017.(3)The Tarim River Basin’s agricultural gray water footprint efficiency has increased from 0.6 yuan·m^(-3)in 2006 to 4.03 yuan·m^(-3)in 2019.To sum up,initiatives to improve the water environment in the Tarim River Basin should emphasize encouraging the integrated development of agriculture and animal husbandry in agricultural areas,modifying the livestock and poultry breeding structure and putting livestock and poultry manure recycling into practice.
作者
杜慧娟
王光耀
冉光妍
吕密
DU Huijuan;WANG Guangyao;RAN Guangyan;LYU Mi(College of Sciences,Shihezi University,Shihezi 832000,Xinjiang,China;Border Development and Security Governance Research Institute,Shihezi University,Shihezi 832000,Xinjiang,China;Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,Xinjiang,China)
出处
《干旱区研究》
CSCD
北大核心
2023年第7期1184-1193,共10页
Arid Zone Research
基金
石河子大学高层次人才科研启动资金专项(RCSK2018C13)。
关键词
农业灰水足迹
农业灰水足迹强度
农业灰水足迹效率
可持续发展目标
塔里木河流域
agricultural grey water footprint
agricultural grey water footprint intensity
agricultural grey water footprint efficiency
sustainable development goal
Tarim River Basin
