沱江流域总磷空间排放特征及影响因素分析

刘丹丹; 乔琦; 李雪迎; 张玥; 白璐

doi:10.12153/j.issn.1674-991X.20210600

沱江流域总磷空间排放特征及影响因素分析

doi: 10.12153/j.issn.1674-991X.20210600

刘丹丹^{1, 2,},
乔琦¹,
李雪迎¹,
张玥¹,
白璐^1, ,

1.
环境基准与风险评估国家重点实验室，中国环境科学研究院
2.
同济大学环境科学与工程学院

基金项目: 长江生态环境保护修复联合研究项目（第一期）（2019-LHYJ-01-0101）

详细信息

作者简介:
刘丹丹(1990—)，女，博士研究生，主要从事水污染物排放清单及溯源研究，ldd56118@126.com

通讯作者:
白璐（1984—），女，高级工程师，博士，主要从事产业生态学与工业污染防治研究，bailu@craes.org.cn

中图分类号: X522
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- 文章访问数: 594
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- 被引次数: 0
出版历程
- 收稿日期: 2021-10-22
- 网络出版日期: 2022-04-02

Spatial characteristics and influencing factors analysis of total phosphorus discharges in Tuojiang River Basin

LIU Dandan^{1, 2
,},
QIAO Qi¹,
LI Xueying¹,
ZHANG Yue¹,
BAI Lu^{1
, ,}

1.
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences
2.
College of Environmental Science and Engineering, Tongji University

摘要

摘要: 沱江流域总磷（TP）减排对于改善三峡库区乃至长江流域的水体富营养化有着重要的作用。以2017年为基准年，基于沱江流域工业、农业和生活源TP排放数据，分析沱江流域TP空间排放特征及污染源排放贡献率；通过引入入河系数，测算沱江流域TP入河量，分析TP的代谢路径；利用Pearson相关分析和线性回归分析，揭示TP排放主要影响因素。结果表明：2017年沱江流域TP排放量和入河量分别为8 324.0和3 676.9 t。排放量方面，成都市TP排放量最大，其次为宜宾市和泸州市；畜禽养殖TP排放量最大，其次为种植业和城镇生活。入河量方面，成都市TP入河量最大，其次为宜宾市和乐山市；城镇生活TP入河量最大，其次为畜禽养殖和农村生活。水田面积、国内生产总值和人口规模是影响沱江流域TP排放的主要因素。
- 沱江流域 /
- 总磷排放 /
- 空间分布 /
- 污染源 /
- 影响因素
Abstract: Total phosphorus (TP) discharge reduction in Tuojiang River Basin plays an important role in improving water eutrophication in the Three Gorges Reservoir and the Yangtze River Basin. Taking 2017 as the base year, based on TP discharge data of industrial, agricultural and domestic sources in Tuojiang River Basin, the spatial characteristics and contribution rate of pollution sources of TP discharge were analyzed. By introducing the inflow coefficient, TP discharge into the river in Tuojiang River Basin was calculated and the metabolic pathways of TP were analyzed. Pearson correlation analysis and linear regression analysis were used to reveal the main influencing factors of TP discharge. The results showed that TP discharge and TP into the river were 8324.0 and 3676.9 t in Tuojiang River Basin in 2017, respectively. In terms of river inflow, TP discharge was the largest in Chengdu, followed by Yibin and Luzhou. Livestock breeding was the most significant anthropogenic source of TP emissions, followed by followed by crop farming and urban life. At the stage of entering the river, the TP emissions into the river were the largest in Chengdu, followed by Yibin and Leshan. Urban life was the most significant anthropogenic source of TP discharge into the river, followed by livestock breeding and rural life. Paddy field area, gross domestic product and population size were the main factors affecting TP discharge in Tuojiang River Basin.
- Tuojiang River Basin /
- total phosphorus discharge /
- spatial distribution /
- pollution source /
- influential factors

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图 1 沱江流域行政区划

Figure 1. Administrative divisions of Tuojiang River Basin

下载: 全尺寸图片幻灯片

图 2 沱江流域2017年TP排放量空间分布

注：数字为TP排放量，t/a。

Figure 2. Spatial distribution of TP discharges in Tuojiang River Basin in 2017

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图 3 沱江流域及各市不同排放源TP排放量占比

Figure 3. TP contribution rates of different sources in cities in Tuojiang River Basin

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图 4 沱江流域各市不同工业行业TP排放量和排放强度

Figure 4. TP discharge and discharge intensity of different industrial industries in cities in Tuojiang River Basin

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图 5 沱江流域涉磷工业废水处理技术与主要工业行业TP去除率

Figure 5. Phosphorus related industrial wastewater treatment processes and TP removal efficiency of main industrial industries in Tuojiang River Basin

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图 6 沱江流域各市农业源TP排放量与畜禽养殖业TP排放强度

Figure 6. TP discharge of agricultural sources and TP discharge intensity of livestock breeding in cities in Tuojiang River Basin

下载: 全尺寸图片幻灯片

图 7 沱江流域各市生活源TP排放量和排放强度

Figure 7. TP discharge and TP discharge intensity of domestic sources in cities in Tuojiang River Basin

下载: 全尺寸图片幻灯片

图 8 沱江流域及各市不同污染源TP入河量

Figure 8. TP discharge into river from different sources in Tuojiang River Basin and cities

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图 9 沱江流域2017年TP排放代谢路径

注：TP入环境量等于TP排放量减TP入河量，t/a。

Figure 9. Metabolic pathways of TP discharge in Tuojiang River Basin in 2017

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图 10 TP排放量和影响因素线性关系

Figure 10. Linear relationship between TP discharge and influential factors

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表 1 沱江流域各城市不同贡献源TP入河系数^[15-16]

Table 1. Inflow coefficient of different contribution sources of cities in Tuojiang River Basin

城市	工业源	畜禽养殖	种植业	水产养殖	城镇生活	农村生活
德阳市	1.00	0.25	0.03	1.00	1.00	0.30
成都市	1.00	0.30	0.01	1.00	1.00	0.35
眉山市	1.00	0.30	0.04	1.00	1.00	0.35
乐山市	1.00	0.30	0.07	1.00	1.00	0.35
资阳市	1.00	0.30	0.04	1.00	1.00	0.30
内江市	1.00	0.30	0.06	1.00	1.00	0.35
自贡市	1.00	0.30	0.04	1.00	1.00	0.35
宜宾市	1.00	0.30	0.06	1.00	1.00	0.35
泸州市	1.00	0.30	0.07	1.00	1.00	0.35

下载: 导出CSV

表 2 TP排放量和影响因素Pearson相关系数

Table 2. Correlation analysis of TP discharge and influencing factors

影响因素	TP排放量
GDP	0.827^**
人均GDP	0.762^*
人口数量	0.856^**
人口密度	0.409
工业总产值	0.751^*
畜禽养殖量	0.821^**
旱地面积	0.543
水田面积	0.920^**
园地面积	0.539
菜园面积	0.564
注：*表示在0.01 水平（双侧）上显著相关；表示在0.05 水平（双侧）上显著相关。

下载: 导出CSV

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