Characteristics and Spatial Distribution of Agricultural Non-Point Source Pollution in Erhai Lake Basin and Its Classified Control Strategy
-
摘要: 作为典型的高原坝区农业型流域,洱海流域农业面源污染严重,威胁洱海水质.以洱海流域为研究对象,综合数理分析及GIS技术,开展流域农业面源污染负荷分析及评价,使用排污系数法估算了2018年洱海流域农村生活、畜禽养殖业和种植业污染中COD(化学耗氧量)、TN(总氮)、TP(总磷)的排放负荷,并通过等标污染负荷法在GIS空间分析反映流域内污染排放分布情况.结果表明:①2018年洱海流域农业面源主要污染物COD、TN、TP的排放量分别为11 188.20、2 752.56和259.33 t.COD排放量主要来自畜禽养殖,TN与TP的排放量均主要来自种植业.②洱海流域农业面源主要污染物COD、TN、TP等标污染负荷分别为559.41、2 752.56和1 296.63 m3/a.种植业等标污染负荷在总等标污染负荷中的占比最高,为36.40%,其次是畜禽养殖业,为34.44%.③各乡镇的等标污染负荷差异较大,等标污染负荷范围为(286.16±150.67)m3/a,等标污染负荷强度范围(0.13±0.067)m3/a.④聚类分析结果表明,洱海流域农业面源污染可分为种植业主导型、种植业高污染型、生活污染主导型和畜禽养殖业主导高污染型等4种类型.研究显示:来源于种植业的面源污染是洱海流域水环境保护需要控制的首要污染源,TN是需要控制的首要污染物;排放量与等标污染负荷的空间分布特征均呈流域北部乡镇污染物排放量较高,但流域西部各乡镇排放强度较大的特征;流域内各乡镇防治面源污染需要针对其污染来源特点分别采取推进种养平衡、推广绿色种植、分区控制农田径流以及推进农村生活污水治理等分类控制策略.Abstract: As a typical agricultural intensive watershed in the Yunnan Plateau, the Erhai Lake Basin is threated by serious agricultural non-point source pollution (ANPSP), which could play an important role in the deterioration of water quality. In order to investigate the ANPSP in the Erhai Lake Basin, the pollutant discharged coefficient method was used to calculate the discharges of chemical oxygen demand (COD), total nitrogen (TN) and total phosphorus (TP) from various sources in 2018. The analysis and evaluation of the ANPSP such as intensity, spatial distribution and classification were then carried out by utilizing the equivalent pollution load method, GIS technology and cluster analysis. The results showed that: (1) Total loads of COD, TN and TP from ANPSP in the Erhai Lake Basin were 11, 188.20 t, 2, 752.56 t and 259.33 t in 2018, respectively. COD discharge came mainly from livestock and poultry breeding, while TN and TP discharges came mainly from farming. (2) The equivalent standard pollution loads of COD, TN and TP from ANPSP in the Erhai Lake Basin were 559.41 m3/a, 2, 752.56 m3/a and 1, 296.63 m3/a, respectively. Farming had the highest proportion of the total equivalent pollution load at 36.40%, followed by livestock and poultry breeding at 34.44%. (3) The equivalent standard pollution loads varied widely among townships, with a range of (286.16±150.67)m3/a and a discharge intensity range of (0.13±0.067)m3/a. (4) The cluster analysis showed that the control regions and strategies can be divided into four types, including planting dominant area, serious polluted area of farming, rural domestic pollution area and livestock and poultry breeding dominant area. The study indicates that farming is the main source of non-point pollution of the water environment in the Erhai Lake Basin and TN is the primary pollutant to be controlled. The spatial distribution of discharges and equivalent standard pollution loads is characterized by higher discharges from towns in the northern part of the basin, while towns with higher discharge intensity are located in the western part of the basin. Accordingly, strategies should be adopted to promote the balance between farming and breeding, promote green planting and farmland runoff control, and improve the quality and efficiency of rural domestic sewage treatment in those 4 major control areas of ANPSP.
-
表 1 洱海流域不同种植模式N、P流失系数
Table 1. Nitrogen and phosphorus loss coefficient of different planting patterns in Erhai Lake Basin
项目 旱地(山地)-其他 旱地(坝区)-其他 旱地-大蒜 烟叶-其他 蔬菜 水田-其他 水稻-大蒜 园地 N流失系数/% 0.34 1.05 1.46 1.46 1.46 1.12 1.44 0.17 P流失系数/% 0.10 0.41 0.75 0.87 0.87 0.28 0.56 0.52 表 2 洱海流域农村生活污染物排放系数[40]
Table 2. The discharge coefficient of rural domestic pollution in Erhai Lake Basin[40]
g/(人·d) 污染物 有水冲厕所 无水冲厕所 COD 39 22 TN 0.61 0.87 TP 0.15 0.17 表 3 洱海流域农业面源污染物排放量及排放占比
Table 3. Pollutant emissions and proportion of agricultural non-point source pollution in Erhai Lake Basin
污染源 污染物排放量/t 污染物排放占比/% COD TN TP COD TN TP 农村生活 4 415.66 758.42 72.96 39.47 27.55 28.14 种植业 — 1 173.80 100.70 — 42.64 38.83 畜禽养殖 6 772.54 820.34 85.67 60.53 29.81 33.03 合计 11 188.20 2 752.56 259.33 100.00 100.00 100.00 表 4 洱海流域农业面源污染物等标负荷及其占比
Table 4. Pollutant emissions and proportion of agricultural non-point source pollution in Erhai Lake Basin
污染源 等标污染负荷/(m3/a) 等标污染负荷占比/% COD TN TP 合计 COD TN TP 农村生活 220.78 758.42 364.82 1 344.02 39.47 27.55 28.14 种植业 — 1 173.80 503.51 1 677.31 — 42.64 38.83 畜禽养殖 338.63 820.34 428.30 1 587.27 60.53 29.81 33.03 合计 559.41 2 752.56 1 296.63 4 608.60 100.00 100.00 100.00 表 5 洱海流域不同污染类型分区等标负荷平均值及其占比
Table 5. Average equivalent pollution loading and contributions of classified regions in Erhai Lake Basin
污染类型分区 等标污染负荷平均值/(m3/a) 等标污染负荷占比/% 农村生活 畜禽养殖 种植业 农村生活 畜禽养殖 种植业 种植业主导型 35.53 59.62 75.95 20.77 34.84 44.39 种植业高污染型 55.37 67.81 154.71 18.08 25.43 56.49 农村生活污染主导型 165.67 91.85 64.50 51.45 28.52 20.03 畜禽养殖主导高污染型 153.02 225.20 160.93 28.38 41.77 29.85 -
[1] CONLEY D J, PAERL H W, HOWARTH R W, et al.Controlling eutrophication:nitrogen and phosphorus[J].Science, 2009, 323(5917):1014-1015. doi: 10.1126/science.1167755 [2] LIU Xin, HU Sheng, JIANG Songyuan, et al.Intensification of phosphorus cycling in China since the 1600s[J].Proceedings of the National Academy of Sciences, 2016, 113(10):2609-2614. doi: 10.1073/pnas.1519554113 [3] ZHANG Wangshou, LI Hengpeng, LI Yunliang.Spatio-temporal dynamics of nitrogen and phosphorus input budgets in a global hotspot of anthropogenic inputs[J].Science of the Total Environment, 2019, 656:1108-1120. doi: 10.1016/j.scitotenv.2018.11.450 [4] TONG Yindong, WANG Mengzhu, PEŇUELAS J, et al.Improvement in municipal wastewater treatment alters lake nitrogen to phosphorus ratios in populated regions[J].Proceedings of the National Academy of Sciences, 2020, 117(21):11566-11572. doi: 10.1073/pnas.1920759117 [5] 生态环境部, 国家统计局, 农业部.第二次全国污染源普查公报[EB/OL].北京: 生态环境部办公厅, 2020-06-28[2020-06-29]. http://www.gov.cn/xinwen/2020-06/10/content_5518391.htm. [6] 杨林章, 吴永红.农业面源污染防控与水环境保护[J].中国科学院院刊, 2018, 33(2):168-176. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=674771209YANG Linzhang, WU Yonghong.Prevention and control of agricultural non-point source pollution and aquatic environmental protection[J].Bulletin of Chinese Academy of Sciences, 2018, 33(2):168-176. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=674771209 [7] XU Ronghua, CAI Yanpeng, WANG Xuan, et al.Agricultural nitrogen flow in a reservoir watershed and its implications for water pollution mitigation[J].Journal of Cleaner Production, 2020, 267:122034. http://www.sciencedirect.com/science/article/pii/S0959652620320813 [8] CHEN Lei, XU Jiajia, WANG Guobo, et al.Influence of rainfall data scarcity on non-point source pollution prediction:implications for physically based models[J].Journal of Hydrology, 2018, 562:1-16. doi: 10.1016/j.jhydrol.2018.04.044 [9] SHEN Z Y, HONG Q, YU H, et al.Parameter uncertainty analysis of non-point source pollution from different land use types[J].Science of the Total Environment, 2010, 408(8):1971-1978. doi: 10.1016/j.scitotenv.2009.12.007 [10] 谢文明, 闵炬, 施卫明.长江三角洲河网平原地区集约化种植面源污染监测指标筛选研究[J].生态与农村环境学报, 2018, 34(9):776-781. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=ncsthj201809002XIE Wenming, MIN Ju, SHI Weiming.Researches on monitoring indicators screening of intensive plant source pollution in the plain area of the Yangtze River Delta[J].Journal of Ecology and Rural Environment, 2018, 34(9):776-781. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=ncsthj201809002 [11] 王冉, 童菊秀, 李佳韵, 等.模拟降雨条件下农田裸地氮素随地表径流流失特征[J].中国农村水利水电, 2018, 427(5):41-46. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zgncslsd201805009WANG Ran, TONG Juxiu, LI Jiayun, et al.Characteristics of nitrogen loss in surface runoff of farmland under simulated rainfall conditions[J].China Rural Water and Hydropower, 2018, 427(5):41-46. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zgncslsd201805009 [12] 俞跃, 宋玉梅, 唐文浩.模拟降雨条件下万泉河流域农田养分流失特征及面源污染源强研究[J].安徽农业科学, 2010, 38(17):9158-9160. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=ahnykx201017121YU Yue, SONG Yumei, TANG Wenhao.Research on nutrient loss features of farmland and strong surface source pollution in Wanquan River Valley under simulated rainfall condition[J].Journal of Anhui Agricultural Sciences, 2010, 38(17):9158-9160. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=ahnykx201017121 [13] LEI Chen, DAI Ying, XIE Hui, et al.Quantifying nonpoint source emissions and their water quality responses in a complex catchment:a case study of a typical urban-rural mixed catchment[J].Journal of Hydrology, 2018, 559:110-121. doi: 10.1016/j.jhydrol.2018.02.034 [14] SHEN Wangzhen, ZHANG Liang, LI Sisi, et al.A framework for evaluating county-level non-point source pollution:joint use of monitoring and model assessment[J].Science of the Total Environment, 2020, 722:137956. doi: 10.1016/j.scitotenv.2020.137956 [15] CHANG C L, YU Z E.Application of water quality model to analyze pollution hotspots and the impact on reservoir eutrophication[J].Environmental Monitoring and Assessment, 2020, 192:495-506. doi: 10.1007/s10661-020-08463-3 [16] BOUKARI A, BENABDALLAH S, EVERBECQ E, et al.Assessment of agriculture pressures impact on the Joumine River water quality using the PEGASE Model[J].Environmental Management, 2019, 64(4):520-535. doi: 10.1007/s00267-019-01207-1 [17] WU Bi, ZHANG Xiang, XU Jing, et al.Assessment and management of nonpoint source pollution based on multicriteria analysis[J].Environmental Science and Pollution Research International, 2019, 26(26):27073-27086. doi: 10.1007/s11356-019-05923-3 [18] 宋大平, 左强, 刘本生, 等.农业面源污染中氮排放时空变化及其健康风险评价研究:以淮河流域为例[J].农业环境科学学报, 2018, 37(6):1219-1231. http://www.cnki.com.cn/Article/CJFDTotal-NHBH201806022.htmSONG Daping, ZUO Qiang, LIU Bensheng, et al.Estimation of spatio-temporal variability and health risks of nitrogen emissions from agricultural non-point source pollution:a case study of the Huaihe River Basin, China[J].Journal of Agro-Environment Science, 2018, 37(6):1219-1231. http://www.cnki.com.cn/Article/CJFDTotal-NHBH201806022.htm [19] ZOU Linlin, LIU Yansui, WANG Yongsheng, et al.Assessment and analysis of agricultural non-point source pollution loads in China:1978-2017[J].Journal of Environmental Management, 2020, 263:110400-110410. doi: 10.1016/j.jenvman.2020.110400 [20] 钟定胜, 张宏伟.等标污染负荷法评价污染源对水环境的影响[J].中国给水排水, 2005, 21(5):101-103. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zgjsps200505029ZHONG Dingsheng, ZHANG Hongwei.Equal standard pollution load method for evaluating the effect of pollution source on aquatic environment[J].China Water & Wastewater, 2005, 21(5):101-103. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zgjsps200505029 [21] 谢经朝, 赵秀兰, 何丙辉, 等.汉丰湖流域农业面源污染氮磷排放特征分析[J].环境科学, 2019, 40(4):1760-1769. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=hjkx201904027XIE Jingchao, ZHAO Xiulan, HE Binghui, et al.Analysis of the characteristics of nitrogen and phosphorus emission from agricultural non-point sources on Hanfeng Lake Basin[J].Environmental Science, 2019, 40(4):1760-1769. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=hjkx201904027 [22] 曹彦龙, 李崇明, 阚平.重庆三峡库区面源污染源评价与聚类分析[J].农业环境科学学报, 2007, 26(3):857-862. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=nyhjbh200703010CAO Yanlong, LIE Chongming, KAN Ping.Evaluating and clustering analysis of non-point source pollution in Chongqing Three Gorges Reservoir Region[J].Journal of Agro-Environment Science, 2007, 26(3):857-862. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=nyhjbh200703010 [23] 林雪原, 荆延德.山东省南四湖流域农业面源污染评价及分类控制[J].生态学杂志, 2014, 33(12):3278-3285. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=stxzz201412015LIN Xueyuan, JING Yande.Assessment and classified control of agricultural non-point source pollution in Nansihu Lake Basin, Shandong Province[J].Chinese Journal of Ecology, 2014, 33(12):3278-3285. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=stxzz201412015 [24] 杨永健, 孟雪靖.黑龙江省农业面源污染负荷排放特征研究[J].生态经济, 2018, 34(12):184-190. http://www.cqvip.com/QK/96795X/201812/6100008823.htmlYANG Yongjian, MENG Xuejing.Study on emission characteristics of agricultural non-point source pollution in Heilongjiang[J].Ecological Economy, 2018, 34(12):184-190. http://www.cqvip.com/QK/96795X/201812/6100008823.html [25] 陈小华, 钱晓雍, 李小平, 等.洱海富营养化时间演变特征(1988-2013年)及社会经济驱动分析[J].湖泊科学, 2018, 30(1):70-78. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=hpkx201801007CHEN Xiaohua, QIAN Xiaoyong, LI Xiaoping, et al.Long-term trend of eutrophication state of Lake Erhai in 1988-2013 and analyses of its socio-economic drivers[J].Journal of Lake Sciences, 2018, 30(1):70-78. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=hpkx201801007 [26] 赵彪, 孙治旭, 胡万里, 等.大理洱海流域凤羽河小流域农业面源污染调查与分析[J].云南农业科技, 2016(6):11-14. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=ynnykj201606004 [27] 庞燕, 项颂, 储昭升, 等.洱海流域农业用地与入湖河流水质的关系研究[J].环境科学, 2015, 36(11):4005-4012. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=hjkx201511009PANG Yan, XIANG Song, CHU Zhaosheng, et al.Relationship between agricultural land and water quality of inflow river in Erhai Lake Basin[J].Environmental Science, 2015, 36(11):4005-4012. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=hjkx201511009 [28] 卢中辉, 余斌, 张辉, 等.洱海流域农业面源污染与水环境变化的关联分析[J].华中师范大学学报(自然科学版), 2017, 51(2):215-223. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=hzsfdxxb201702015LU Zhonghui, YU Bin, ZHANG Hui, et al.Correlation analysis between agricultural non-point source pollution and water environment change in Erhai Lake Basin[J].Journal of Central China Normal University (Natural Sciences), 2017, 51(2):215-223. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=hzsfdxxb201702015 [29] 杨怀钦, 杨友仁, 李晓莲, 等.洱海流域水稻施用有机肥、生物肥地表径流监测试验研究[J].农业环境与发展, 2013(3):97-99. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=nyhjyfz201303032 [30] 汤秋香, 任天志, 雷宝坤, 等.洱海北部地区不同轮作农田氮、磷流失特性研究[J].植物营养与肥料学报, 2011(3):608-615. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zwyyyflxb201103013TANG Qiuxiang, REN Tianzhi, LEI Baokun, et al.Characteristics of nitrogen and phosphorus loss in various crop rotation system in northern watershed of Erhai lake[J].Plant Nutririon and Fertilizer Science, 2011(3):608-615. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zwyyyflxb201103013 [31] 翟玥, 尚晓, 沈剑, 等.SWAT模型在洱海流域面源污染评价中的应用[J].环境科学研究, 2012, 25(6):666-671. http://www.hjkxyj.org.cn/hjkxyj/ch/reader/view_abstract.aspx?file_no=20120610&flag=1ZHAI Yue, SHANG Xiao, SHEN Jian, et al.Application of SWAT model in agricultural non point source pollution investigation in Lake Erhai watershed[J].Research of Environmental Sciences, 2012, 25(6):666-671. http://www.hjkxyj.org.cn/hjkxyj/ch/reader/view_abstract.aspx?file_no=20120610&flag=1 [32] 金春玲, 高思佳, 叶碧碧, 等.洱海西部雨季地表径流氮磷污染特征及受土地利用类型的影响[J].环境科学研究, 2018, 31(11):1891-1899. http://www.hjkxyj.org.cn/hjkxyj/ch/reader/view_abstract.aspx?file_no=20181110&flag=1JIN Chunling, GAO Sijia, YE Bibi, et al.Nitrogen and phosphorus pollution characteristics of surface runoff and the impacts of land use on runoff water quality in rainy season in the western Erhai Lake Basin[J].Research of Environmental Sciences, 2018, 31(11):1891-1899. http://www.hjkxyj.org.cn/hjkxyj/ch/reader/view_abstract.aspx?file_no=20181110&flag=1 [33] 张萍, 卢少勇, 潘成荣.基于层次-灰色关联法的洱海农业面源污染控制技术综合评价[J].科技导报, 2017(9):52-57. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=kjdb201709011ZHANG Ping, LU Shaoyong, PAN Chengrong, et al.Evaluation of agricultural non-point source pollution prevention and control techniques using a grey analytic hierarchy process for Lake Erhai[J].Science & Technology Review, 2017(9):52-57. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=kjdb201709011 [34] 储昭升, 高思佳, 庞燕, 等.洱海流域"山水林田湖草"各要素特征、存在问题及生态保护修复措施[J].环境工程技术学报, 2019, 9(5):507-514. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=hjgcjsxb201905006CHU Zhaosheng, GAO Sijia, PANG Yan, et al.Characteristics problems and ecological protection and restoration measures of mountain-river-forest-farmland-lake-grassland elements in Lake Erhai Basin[J].Journal of Environmental Engineering Technology, 2019, 9(5):507-514. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=hjgcjsxb201905006 [35] 倪喜云, 尚榆民.云南大理洱海流域农业面源污染防治和生态补偿实践[J].农业环境与发展, 2011, 28(4):82-87. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=nyhjyfz201104016NI Xiyun, SHANG Yumin.Non-point source agricultural pollution control and eco-compensation practice in Erhai catchment, Yunnan Province[J].Agro-Environment & Development, 2011, 28(4):82-87. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=nyhjyfz201104016 [36] 云南省再生经济产业开发研究会.洱海流域农业面源污染治理研究[M].昆明:云南大学出版社, 2015. [37] 云南省统计局.云南省统计年鉴2019年[M].昆明:云南省统计局, 2020. [38] 中国环境科学研究院.洱海保护治理规划(2018-2035年)[R].大理: 大理州人民政府, 2020. [39] 大理白族自治州统计局.大理统计年鉴(2019)[M].大理:大理白族自治州统计局, 2019. [40] 云南省环境工程评估中心.大理市截污治污工程环境绩效评估报告[R].大理: 大理州洱海管理局, 2019. [41] 倪喜云, 杨苏树, 张华艳, 等.洱海流域农田不同种植模式氮磷流失研究初报[J].云南农业, 2016, 325(2):45-46. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=ynny201602021 [42] 窦嘉顺, 杨四坤, 黄明雨, 等.洱海流域蔬菜种植业污染特征浅析[J].环境科学导刊, 2019, 38(5):35-38. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=ynhjkx201905008DOU Jiashun, YANG Sikun, HUANG Mingyu, et al.Pollution characteristics of vegetable planting in the Erhai Lake Basin[J].Environmental Science Survey, 2019, 38(5):35-38. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=ynhjkx201905008 [43] 鲁耀, 胡万里, 雷宝坤, 等.云南坡耕地红壤地表径流氮磷流失特征定位监测[J].农业环境科学学报, 2012, 31(8):1544-1553. http://www.cnki.com.cn/article/cjfdtotal-nhbh201208014.htmLU Yao, HU Wanli, LEI Baokun, et al.The monitoring of nitrogen and phosphorus loss by surface runoff in sloping red soil fields of Yunnan Province[J].Journal of Agro-Environment Science, 2012, 31(8):1544-1553. http://www.cnki.com.cn/article/cjfdtotal-nhbh201208014.htm [44] 汤秋香, 翟丽梅, 雷宝坤, 等.洱海流域北部农田养分平衡及残留特性研究[J].农业环境科学学报, 2010, 29(11):2163-2170. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=nyhjbh201011018TANG Qiuxiang, ZHAI Limei, LEI Baokun, et al.Nutrient balance and soil nuitrient status in farmland of the northern watershed of Lake Erhai[J].Journal of Agro-Environment Science, 2010, 29(11):2163-2170. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=nyhjbh201011018 [45] 陈安强, 雷宝坤, 刘宏斌, 等.洱海近岸不同种植类型农田沟渠径流氮磷流失特征[J].生态与农村环境学报, 2017, 33(8):697-705. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=ncsthj201708004CHEN Anqiang, LEI Baokun, LIU Hongbin, et al.Characteristics of N and P losses from ditch runoff in farmlands different in planting patterns offshore of Lake Erhai[J].Journal of Ecology and Rural Environment, 2017, 33(8):697-705. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=ncsthj201708004 [46] 姚金玲, 张克强, 郭海刚, 等.不同施肥方式下洱海流域水稻-大蒜轮作体系氮磷径流损失研究[J].农业环境科学学报, 2017, 36(11):2287-2296. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=nyhjbh201711017YAO Jinling, ZHANG Keqiang, GUO Haigang, et al.Nitrogen and phosphorus runoff losses during rice-garlic rotation in Erhai Lake Basin under different fertilization methods[J].Journal of Agro-Environment Science, 2017, 36(11):2287-2296. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=nyhjbh201711017 [47] 曾国熙.关于大理州乳扇加工环节原料奶使用情况的调查报告[J].中国畜牧兽医文摘, 2016(8):45. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zgxmsywz201608042 [48] 周木兰, 罗梅兰.用气浮+A/O+深度组合工艺处理乳品生产有机废水[J].环境科学与管理, 2008, 33(11):120-122. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=bfhj200811031ZHOU Mulan, LUO Meilan.The combined process of air floatation, A/O treatment and advanced treatment is used for organic wastewater treatment dairy production[J].Environmental Science and Management, 2008, 33(11):120-122. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=bfhj200811031 [49] 张荣.SAMBR工艺处理乳品废水的启动调试及运行[J].中国给水排水, 2015, 31(8):96-99. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zgjsps201508023ZHANG Rong.Start-up commissioning and operation of submerged anaerobic membrane bioreactor for treatment of dairy wastewater[J].China Water & Wastewater, 2015, 31(8):96-99. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zgjsps201508023 [50] 第一次全国污染源普查资料编纂委员会.第一次全国污染源普查畜禽养殖业产排污系数手册[M].北京:中国环境科学出版社, 2011. [51] 张子璐, 刘峰, 侯庭钰.我国稻田氮磷流失现状及影响因素研究进展[J].应用生态学报, 2019, 30(10):3292-3302. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=yystxb201910004ZHANG Zilu, LIU Feng, HOU Tingyu.Current status of nitrogen and phosphorus losses and related factors in Chinese paddy fields:a review[J]Chinese Journal of Applied Ecology, 2019, 30(10):3292-3302. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=yystxb201910004 -