ZHOU Xiaowen,AN Yanling,WU Qixin,et al.Response of Spatial Distribution of Nitrogen and Phosphorus to Human Activities in Mountainous Rivers[J].Research of Soil and Water Conservation,2021,28(04):179-185.
山区河流氮磷空间分布对人类活动的响应——以赤水河一级支流桐梓河为例
- Title:
- Response of Spatial Distribution of Nitrogen and Phosphorus to Human Activities in Mountainous Rivers
- 文章编号:
- 1005-3409(2021)04-0179-07
- 分类号:
- X522
- 文献标志码:
- A
- 摘要:
- 为了解人类活动影响下的山区河流氮磷分布情况,以赤水河一级支流桐梓河为对象,开展野外调研,对其干流及各条支流进行了水样采集并分析。结果表明:桐梓河总氮、总磷浓度均值分别为2.85,0.13 mg/L。氮磷浓度的空间差异比较明显,总氮从上游到下游呈波动式增长,总磷则上游高于中下游。总氮有明显的累积效应,从上游源河的1.34 mg/L,升高到下游河口的3.40 mg/L,其空间变化主要受上游城镇污水的点源输入、中下游农业面源污染及水利工程等综合影响。而上游城镇外源污染对总磷的输入,使其在桐梓县城段的干流浓度维持在0.16 mg/L,到下游河口则降低至0.09 mg/L,说明桐梓河受人为污染输入与水体自净能力的双重作用。桐梓河氮磷比例关系总体表现为磷限制,但上游城镇段河流显示处于潜在富营养区,水质可能受到氮磷污染威胁。
- Abstract:
- In order to understand the distribution of nitrogen and phosphorus in mountainous rivers under the influence of human activities, the Tongzi River, the first tributary of Chishui River, was taken as the object to carry out field investigation, and water samples of its main stream and various tributaries were collected and analyzed. The results show that the average concentrations of total nitrogen, total phosphorus are 2.85 mg/L and 0.13 mg/L, respectively; the spatial difference of nitrogen and phosphorus concentrations is obvious; total nitrogen fluctuates from upstream to downstream, while total phosphorus is higher in the upstream than in the downstream; total nitrogen has a significant cumulative effect, from 1.34 mg/L in the upstream source river to 3.40 mg/L in the downstream estuary, and its spatial change is mainly affected by the point source input of the upstream urban sewage, the agricultural non-point source pollution in the middle and lower reaches and the water conservancy project; the input of total phosphorus from external sources of pollution in the upper reaches of the town kept the main stream concentration of Tongzi County at 0.16 mg/L, and it decreased to 0.09 mg/L at the downstream estuary, indicating the dual role of human pollution input and water self-purification ability in Tongzi River. The overall ratio of nitrogen to phosphorus in the Tongzi River is restricted by phosphorus, but it is shown that the upstream urban section of the river is in a potentially eutrophic area, and the water quality may be threatened by nitrogen and phosphorus pollution.
参考文献/References:
[1] Wang J L, Fu Z S, Qiao H X, et al. Assessment of eutrophication and water quality in the estuarine area of Lake Wuli, Lake Taihu, China[J].Science of the Total Environment, 2019,650(P1):1392-1402.[2] Hobbie S E, Finlay J C, Janke B D, et al. Contrasting nitrogen and phosphorus budgets in urban watersheds and implications for managing urban water pollution[J].Proceedings of the National Academy of Sciences[J],2017,114(16):4177-4182.[3] Liu C, Zhong J C, Wang J J, et al. Fifteen-year study of environmental dredging effect on variation of nitrogen and phosphorus exchange across the sediment-water interface of an urban lake[J].Environmental Pollution, 2016,219:639-648.[4] Richard B A, Richard A S, Gregory E S, et al. Differences in phosphorus and nitrogen delivery to the Gulf of Mexico from the Mississippi River Basin[J]. Environmental Science & Technology, 2008,42(3):822-830.[5] Zhang B Y, Ding W, Xu B, et al. Spatial characteristics of total phosphorus loads from different sources in the Lancang River Basin[J]. Science of the Total Environment, 2020,722.DOI:10.1016/j.scitotenv.2020.137863.[6] 张林,黄志霖,肖文发,等.三峡库区兰陵溪小流域径流氮磷输出及其降雨径流过程特征[J].环境科学,2018,39(2):792-799.[7] 孟凡非,杨成,彭艳,等.阿哈水库枯水期入库河流可溶性氮、磷含量分布特征[J].地球与环境,2020,48(5):612-621.[8] 周涛,程天雨,虞宁晓,等.乌江中上游梯级水库氮磷滞留效应[J].生态学杂志,2018,37(3):707-713.[9] Li C W, Zhang H Y, Hao Y H, et al. Characterizing the heterogeneous correlations between the landscape patterns and seasonal variations of total nitrogen and total phosphorus in a peri-urban watershed[J].Environmental Science and Pollution Research, 2020,27:1-11.[10] 夏云,张波涛,姜德娟.大沽河溶解态无机氮时空分布特征及来源探讨[J].农业环境科学学报,2020,39(1):182-190.[11] Brian E L, Laura W H, Rachel A B. Nutrient over-enrichment and light limitation of seagrass communities in the Indian River Lagoon, an urbanized subtropical estuary[J]. Science of the Total Environment, 2020,699. DOI: 10.1016/j.scitotenv.2019.134068.[12] 庆旭瑶,任玉芬,吕志强,等.重庆市主城区次级河流总氮总磷污染特征分析及富营养化评价[J].环境科学,2015,36(7):2446-2452.[13] 郑剑锋,焦继东,孙力平,等.天津中心城区河网氮磷污染与富营养化特征[J].湖泊科学,2018,30(2):326-335.[14] 吴怡,郭亚飞,曹旭,等.成都府南河叶绿素a和氮、磷的分布特征与富营养化研究[J].中国环境监测,2013,29(4):43-49.[15] Wu Y P, Chen J. Investigating the effects of point source and nonpoint source pollution on the water quality of the East River(Dongjiang)in South China[J].Ecological Indicators, 2013,32(9):294-304.[16] Jarvie H P, Sharpley A N, Brahana V, et al. Phosphorus retention and remobilization along hydrological pathways in karst terrain[J].Environmental Science & Technology, 2014,48(9):4860-4868.[17] Zhu J, Li S L, Wang Y C, et al. Spatial characters of nutrients in Wujiangdu Reservoir in karst river, SW China[J]. Acta Geochimica, 2017,36(4):605-610.[18] 田义超,王世杰,白晓永,等.桐梓河流域输沙量变化及其对气候和人类活动的响应[J].自然资源学报,2019,34(12):2701-2716.[19] 田义超,黄远林,白晓永,等.基于二元逻辑斯蒂模型的桐梓河流域土地利用变化及模拟[J].科学技术与工程,2019,19(6):50-62.[20] 徐兵兵,卢峰,黄清辉,等.东苕溪水体氮、磷形态分析及其空间差异性[J].中国环境科学,2016,36(4):1181-1188.[21] 董雯,李怀恩,李家科,等.城市重污染河流水质特征分析:以皂河为例[J].水力发电学报,2012,31(4):72-77.[22] 高永霞,宋玉芝,于江华,等.环太湖不同性质河流水体磷的时空分布特征[J].环境科学,2016,37(4):1404-1412.[23] 孙丽梅,裘钱玲琳,杨磊,等.长三角城郊樟溪流域水体氮磷分布特征及其影响因素[J].生态毒理学报,2018,13(4):30-37.[24] 邹翔,薛小红,赵健.赤水河流域水土流失特点与分区防治研究[J].长江科学院院报,2010,27(8):12-15.[25] 梁启忠.遵义市汇川区石漠化治理研究[J].绿色科技,2011(6):35-37.[26] 秦立.基于不同土地利用下水土流失对赤水河流域氮素输出的影响研究[D].贵阳:贵州大学,2019.[27] Schwarz, M T, Oelmann Y, Wilcke W. Stable N isotope composition of nitrate reflects N transformations during the passage of water through a montane rain forest in Ecuador[J].Biogeochemistry, 2010,102(1/3):195-208.[28] 张为,杨斌.赤水河干流水环境影响因素分析[J].安徽农业科学,2019,47(5):80-83.[29] 杨凡,杨正健,纪道斌,等.三峡库区不同河段支流丰水期叶绿素a和营养盐的空间分布特征[J].环境科学,2019,40(11):4944-4952.[30] 卢龙,谢芳立.赣江水体氮磷营养盐分布特征及影响因素[J].南昌大学学报:理科版,2017,41(6):567-571.[31] 叶玉适,陈进,许继军,等.长江源和怒江源区水体氮磷化学计量特征初探[J].长江科学院院报,2019,36(9):6-11.[32] 王琼,卢聪,范志平,等.辽河流域太子河流域N, P和叶绿素a浓度空间分布及富营养化[J].湖泊科学,2017,29(2):297-307.[33] 高凤,邵美玲,曹昌丽,等.城镇化流域氮、磷污染特征及影响因素:以宁波北仑区小浃江为例[J].湖泊科学,2019,31(3):689-699.[34] 宋立芳,王毅,吴金水,等.水稻种植对中亚热带红壤丘陵区小流域氮磷养分输出的影响[J].环境科学,2014,35(1):150-156.[35] 黄娟,安艳玲,吴起鑫.清水江流域水体中氮磷分布及富营养化程度评价[J].环境工程,2016,34(5):143-147.[36] 吴旌滔.贵州三岔河流域水质时空分布特征及影响因素分析[D].贵阳:贵州大学,2016.[37] 冯源嵩,林陶,杨庆媛.百花湖周边城市近郊小流域氮、磷输出时空特征[J].环境科学,2014,35(12):4537-4543.[38] 龚小杰,王晓锋,刘婷婷,等.流域场镇发展下三峡水库典型入库河流水体碳、氮、磷时空特征及富营养化评价[J].湖泊科学,2020,32(1):111-123.[39] 白文辉,王晓昌,王楠,等.北方高盐景观水体氮磷时空分布特征及富营养化评价[J].环境工程,2017,35(4):120-124.[40] Zhang Y, Song C L, Ji L, et al. Cause and effect of N/P ratio decline with eutrophication aggravation in shallow lakes[J]. Science of the Total Environment, 2018,627:1294-1302.
备注/Memo
收稿日期:2020-09-06 修回日期:2020-10-03资助项目:贵州理工学院高层次人才科研启动经费项目(2019[45]); 贵州省科技计划项目(黔科合支撑[2018]20101); 贵州省水利厅科技资助项目(KT201508); 国家自然科学基金(41603123,41763019,41501018); 国家自然科学基金委—贵州省喀斯特联合资助项目(U1612442); 贵州省科技厅联合资助项目(黔科合LH字[2016]7457号); 贵州一流学科建设(GNYL[2017]007)第一作者:周晓雯(1995—),女,重庆渝中人,硕士研究生,研究方向为流域水环境。E-mail:416622493@qq.com通信作者:安艳玲(1975—),女,内蒙古通辽人,教授,博士,主要从事流域管理研究。E-mail:20170792@git.edu.cn