基于灰水足迹的长江流域生态补偿额度量化及应用

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中文摘要：基于灰水足迹对2009-2020年长江流域的生态补偿额度进行量化，为完善长江流域生态补偿保护机制提供支持。从农业、工业、生活等3方面计算了 2009-2020年长江流域15个省、2个直辖市和2个自治区的灰水足迹及它的载荷系数，利用零和模型和生态补偿标准修正指数计算了流域各省(直辖市、自治区)的生态补偿标准。结果显示:1)2009-2020年长江流域灰水足迹整体呈现先增加后减少的趋势，在2015年达到峰值为9 131。44亿m3，中下游地区灰水足迹随时间推移而减少的趋势更明显;流域内灰水足迹载荷系数较大且水资源分布较少区域中大部分省(直辖市、自治区)在2019-2020年灰水足迹载荷系数呈下降趋势，淡水资源压力减弱;流域生态补偿标准绝对值总量在相对稳定的范围内呈波动趋势，最低值在2011年为570。92亿元，最高值在2019年为1 090。45亿元。2)长江流域内上游地区农业年平均灰水足迹最大，然后依次是中游地区和下游地区;中游地区工业和生活年平均灰水足迹最大，然后依次是下游地区和上游地区;在区域灰水足迹中农业灰水足迹的占比最大，然后依次是生活和工业灰水足迹的占比。长江流域内平均生态补偿阈值范围最大的是中游地区，然后依次是下游地区和上游地区;累计赤字生态补偿标准最大的是下游地区，然后依次为上游地区和中游地区;累计盈余生态补偿标准最大的是中游地区，然后依次是上游地区和下游地区;流域生态补偿标准总体上表现为累计赤字大于累计盈余。3)长江流域生态补偿标准的理论总值与环境保护投资实际总值绝对误差为1。86亿元，相对误差仅为0。22％。研究结果反映了长江流域各省(直辖市、自治区)之间的生态补偿数量关系并说明了研究方法具有较高可行性。

外文标题：Quantification and Application of Ecological Compensation in the Yangtze River Basin Based on Grey Water Footprint

外文摘要：Based on the grey water footprint,the ecological compensation amount of the Yangtze River Basin from 2009 to 2020 was quantified,to provide support for improving the ecological compensation and protection mechanism of the Yangtze River Basin.The grey water footprint and load coefficient of 15 provinces,2 municipalities,and 2 autonomous regions in the Yangtze River Basin from 2009 to 2020 were calculated from three aspects:agriculture,industry,and life.The ecological compensation standards of each province(municipality directly under the central government and autonomous region)in the basin were calculated using the zero-sum model and the ecological compensation standard correction index.The results show that:1)From 2009 to 2020,the overall gray water footprint in the Yangtze River Basin increased first and then decreased,and reached a peak of 913.144 billion m3 in 2015.The gray water footprint decreases more significantly over time in the middle and lower reaches of the basin.Most of the provinces(municipalities and autonomous regions)in the types of regions with larger gray water footprint loading coefficients in the basin and at the same time less water resources distribution has shown a decreasing trend in gray water footprint loading coefficients in 2019-2020,which implies a weakening of the pressure on freshwater resources.The total absolute value of river basin ecological compensation standards has shown a fluctuating trend within a relatively stable range,with the lowest value of 57.092 billion yuan in 2011 and the highest value of 109.045 billion yuan in 2019.2)The average annual graywater footprint for agriculture within the Yangtze River Basin is largest in the upper reaches,followed by the middle reaches and the lower reaches in that order.The average annual graywater footprint of industry and domestic within the Yangtze River Basin is largest in the middle reaches,followed by the lower reaches and the upper reaches in that order.Agriculture has the largest share of the regional graywater footprint,followed by domestic and industrial graywater footprints in that order.The largest range of average ecological compensation thresholds within the Yangtze River Basin is in the middle reaches,followed by the lower reaches and upper reaches in that order.The largest cumulative deficit eco-compensation standards are in the downstream region,followed by the upstream region and the midstream region in that order.The largest cumulative surplus eco-compensation standards are found in the midstream region,followed by the upstream region and the downstream region in that order.Basin ecological compensation standards in general show a cumulative deficit greater than a cumulative surplus.3)The absolute error between the theoretical total value and the actual total investment value of the ecological compensation standard in the Yangtze River basin is 186 million yuan,and the relative error is only 0.22％.The research results reflect the quantitative relationship of ecological compensation among provinces(municipalities directly under the central government and autonomous regions)in the Yangtze River Basin,and demonstrate the high feasibility of the research methodology.

外文关键词：

grey water footprintYangtze River Basinecological compensationzero-sum modelecological compensation standard correction index

作者：

吴蕾、官冬杰、姜亚楠、苏湘媛

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作者单位：

重庆交通大学智慧与城市学院,重庆 400074

关键词：

灰水足迹长江流域生态补偿零和模型生态补偿标准修正指数

基金：

国家自然科学基金面上项目国家自然科学基金青年科学基金教育部人文社会科学研究一般项目重庆市自然科学基金杰出青年基金国家社会科学基金后期资助项目

项目编号：

421712984220133320YJA790016cstc2020jcyjjqX000420FJYB035

出版年：

2024

DOI：

10.11721/cqnuj20240110

重庆师范大学学报(自然科学版)

重庆师范大学

重庆师范大学学报(自然科学版)

CSTPCD北大核心

影响因子：0.652

ISSN：1672-6693

年,卷(期)：2024.41(1)

参考文献量40