面向SDGs的塔里木河流域农业灰水足迹分析
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6.95×1010 m3(最高值)降至2017年的3.96×1010 m3(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4.48×104 m3·hm-2下降至2017年的1.68×104 m3·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。
he dry Tarim River Basin in Northwest China acts as a crucial ecotone for Xinjiang’s agricultural andgrazing resources. Therefore, studying agricultural nonpoint source pollution is essential for the green andsustainable growth of basin agriculture. This research offers a gray water footprint theory-based assessment indexfor China’s sustainable development. Furthermore, the Tarim River Basin’s regional and temporal variationpatterns are examined using SDGs framework. The agricultural gray water footprint’s intensity and efficienciesare estimated for 2006-2020. The findings are shown as below. (1) The Tarim River Basin’s entire agriculturalgray water footprint has reduced, falling from 6.95 × 1010 m3 in 2006 (highest value) to 3.96 × 1010 m3 in 2017(lowest value). The main source of the gray water footprint is animal husbandry. (2) In the Tarim River Basin, theintensity of the agricultural gray water footprint has decreased by 62.5% from 4.48×104 m3·hm-2 in 2006 to 1.68×104 m3·hm-2 in 2017. (3) The Tarim River Basin’s agricultural gray water footprint efficiency has increased from0.6 yuan·m-3 in 2006 to 4.03 yuan·m-3 in 2019. To sum up, initiatives to improve the water environment in theTarim River Basin should emphasize encouraging the integrated development of agriculture and animalhusbandry in agricultural areas, modifying the livestock and poultry breeding structure and putting livestock andpoultry manure recycling into practice.
吕密1、冉光妍1、杜慧娟1、王光耀1,2,3
农业科学研究环境污染、环境污染防治
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
吕密1,冉光妍1,杜慧娟1,王光耀1,2,3.面向SDGs的塔里木河流域农业灰水足迹分析[EB/OL].(2023-08-26)[2025-08-02].https://chinaxiv.org/abs/202308.00682.点此复制
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