Application of modified export coefficient method on the load estimation of non-point source nitrogen and phosphorus pollution of soil and water loss in semiarid regions

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• 作者：Lei Wu ; Jian-en Gao ; Xiao-yi Ma ; Dan Li
• 关键词：Non ; point source pollution ; Modified export coefficient method ; Nitrogen and phosphorus load ; Yanhe River watershed
• 刊名：Environmental Science and Pollution Research
• 出版年：2015
• 出版时间：July 2015
• 年：2015
• 卷：22
• 期：14
• 页码：10647-10660
• 全文大小：3,257 KB
• 参考文献：Austin AT, Yahdjian L, Stark JM (2004) Water pulses and biogeochemical cycles in arid and semiarid ecosystems. Oecologia 141:221-35View Article
  Bian YS (2000) Waste treatment, regeneration and utilization in ecological agriculture. Chemical Industry Press, Beijing, pp 114-00
  Bu HM, Meng W, Zhang Y, Wan J (2014) Relationships between land use patterns and water quality in the Taizi River basin, China. Ecol Indic 41:187-97View Article
  Cai M, Li HE, Zhuang YT, Wang QH (2004) Application of modified export coefficient method in polluting load estimation of non-point source pollution. J Hydraul Eng 7:40-5
  Cheng HG, Yue Y, Yang ST et al (2006) An estimation and evaluation of non-point source (NPS) pollution in the Yellow River Basin. Acta Sci Circumst 26(3):384-91
  Ding XW, Liu RM, Shen ZY (2006) Method for obtaining parameters of export coefficient model using hydrology and water quality data and its application. J Beijing Normal Univ (Nat Sci) 42(5):534-38
  Fu C, Kang WY (2012) Research on spatial characteristics of TN & TP of agricultural non-point source pollution in the surrounding area of the Poyang lake. Resour Environ Yangtze Basin 21(7):864-68
  Garbrecht J, Campbell J (1997) TOPAZ: an automated digital landscape analysis tool for topographic evaluation, drainage identification, watershed segmentation and sub-catchment parameterization. TOPAZ User Manual. USDA-ARS, Oklahoma
  Giles J (2005) Nitrogen study fertilizes fears of pollution. Nature 433(2):791View Article
  Hart MR, Quin BF, Long Nguyen M (2004) Phosphorus runoff from agricultural land and direct fertilizer effects: a review. J Environ Qual 33:1954-972View Article
  Hu HX, MA YH (2008) Soil and water loss and agricultural non-point source pollution. Chin Agric Sci Bull 24(6):408-12
  Huang YG, Fu LL, Hu XM (2012) Study and application of export coefficient model of non-point source pollution load using in-situ data. J Hydroelectric Eng 31(5):159-62
  Jia HY, Peng L, Peng XL et al (1994) Partition and evaluation of soil nutrient resources in the Loess Plateau. J Soil Water Conserv 8(3):22-8
  Jiao JY, Wang WZ, Hao XP (1999) Precipitation and erosion characteristics of different types of rainfall in the Loess Plateau. J Arid Land Resour Environ 13(1):34-2
  Johnes PJ (1996) Evaluation and management of the impact of land use change on the nitrogen and phosphorus load delivered to surface waters: the export coefficient modelling approach. J Hydrol 183:323-49View Article
  Kang XY (2010) The evaluation and prediction of non-point source pollution in Poyang Lake Area. Dissertation of master degree. Nanchang University, Nanchang
  Ke M, Ao TQ, Zhou L, et al. (2014) Non-point Source Evaluation of Xi-chong River Basin in Xi-chong County Based on Output Coefficient Model.(3): 20-4
  Kite GW (2001) Modelling the Mekong: hydrological simulation for environmental impact studies. J Hydrol 253:1-3View Article
  Kite GW (2002) Manual for the SLURP Hydrological Model Version 12.2. NHRI Publ, Canada
  Lacroix MP, Martz LW, Kite GW, Garbrecht J (2002) Using digital terrain analysis modeling techniques for the parameterization of a hydrologic model. Environ Model Softw 17:127-36View Article
  Li G, Mao F (2008) Evaluation on non-point source pollution of soil and water loss and its economic loss of China. Soil Water Conserv China 2:9-1
  Li HE, Wang L, Shi SJ (2010a) Estimation of total nitrogen load from non-point sources in Shaanxi Province water source area of the central line of South–North Water Diversion Project. J Northwest Univ (Nat Sci Ed) 40(3):540-44
  Li HE, Zhuang YT (2003) The export coefficient modeling approach for load prediction of nutrient from nonpoint source and its application. J Xi an Univ Technol 19(4):307-12
  Li HP, Huang WY, Yang GS, Li ZF (2006a) Non-point source pollutant concentration in typical towns of Taihu Upriver Region. J Agro-Environ Sci 25(6):1598-602
  Li HP, Huang WY, Yang GS, Liu XM (2006b) Non-point pollutant concentrations for different land uses in Lihe River watershed of Taihu Region. China Environ Sci 26(2):243-47
  Li HP, Liu XM, Huang WY (2004a) The non-point output of different landuse types in Zhexi hydraulic region of Taihu Basin. Acta Geograph Sin 59(3):401-08
  Li JK (2009) Research on non-point source pollution load quantification for watershed-taking the weihe river basin as an example. Doctoral dissertation, Xian: Xi'an University of Technology
  Li QK, Li HE (2010) The preliminary frame of non point source pollution study in the Yellow River watershed. Yellow River 32(12):131-35
  Li QZ, Wang DY, Zhu B (2004b) The output rule of non-point source phosphorus Load in purple soil under natural rainfall. J Agro-Environ Sci 23(6):1050-052
  Li R, Li BC, Yang WZ et al (2008) Research and prospect of the Loess Plateau in China. Science Press, Beijing
  Li Z, Zheng FL, Liu WZ (2010b) Analyzing the spatial-temporal changes of extreme precipi
• 作者单位：Lei Wu (1) (2) (3)
  Jian-en Gao (1)
  Xiao-yi Ma (2) (3)
  Dan Li (2)
  
  1. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Water and Soil Erosion Conservation, Northwest A&F University, Yangling, Shaanxi, 712100, Peoples Republic of China
  2. College of Water Resources and Architectural Engineering, Northwest A&F University, No. 23 Weihui Road, Yangling District, Shaanxi, 712100, Peoples Republic of China
  3. Key Laboratory of Agricultural Soil and Water Engineering in Arid Regions Ministry of Education, Northwest A&F University, Yangling, Shaanxi, 712100, Peoples Republic of China
  
• 刊物类别：Earth and Environmental Science
• 刊物主题：Environment
  Environment
  Atmospheric Protection, Air Quality Control and Air Pollution
  Waste Water Technology, Water Pollution Control, Water Management and Aquatic Pollution
  Industrial Pollution Prevention
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1614-7499

文摘

Chinese Loess Plateau is considered as one of the most serious soil loss regions in the world, its annual sediment output accounts for 90?% of the total sediment loads of the Yellow River, and most of the Loess Plateau has a very typical characteristic of “soil and water flow together- and water flow in this area performs with a high sand content. Serious soil loss results in nitrogen and phosphorus loss of soil. Special processes of water and soil in the Loess Plateau lead to the loss mechanisms of water, sediment, nitrogen, and phosphorus are different from each other, which are greatly different from other areas of China. In this study, the modified export coefficient method considering the rainfall erosivity factor was proposed to simulate and evaluate non-point source (NPS) nitrogen and phosphorus loss load caused by soil and water loss in the Yanhe River basin of the hilly and gully area, Loess Plateau. The results indicate that (1) compared with the traditional export coefficient method, annual differences of NPS total nitrogen (TN) and total phosphorus (TP) load after considering the rainfall erosivity factor are obvious; it is more in line with the general law of NPS pollution formation in a watershed, and it can reflect the annual variability of NPS pollution more accurately. (2) Under the traditional and modified conditions, annual changes of NPS TN and TP load in four counties (districts) took on the similar trends from 1999 to 2008; the load emission intensity not only is closely related to rainfall intensity but also to the regional distribution of land use and other pollution sources. (3) The output structure, source composition, and contribution rate of NPS pollution load under the modified method are basically the same with the traditional method. The average output structure of TN from land use and rural life is about 66.5 and 17.1?%, the TP is about 53.8 and 32.7?%; the maximum source composition of TN (59?%) is farmland; the maximum source composition of TP (38.1?%) is rural life; the maximum contribution rates of TN and TP in Baota district are 36.26 and 39.26?%, respectively. Results may provide data support for NPS pollution prevention and control in the loess hilly and gully region and also provide scientific reference for the protection of ecological environment of the Loess Plateau in northern Shaanxi.