The Yarlung Tsangpo River, the longest river in Tibet, houses most of the population and economy in Tibet Autonomous province. Under the rapid development of economy and society in Tibet, the pollution in the Yarlung Tsangpo River basin has rapidly increased. Evaluating water quality and water environmental capacity is needed for water resource management in Tibet. This study used a single factor evaluation method to evaluate water quality of the Zhongba-Nyingchi section of the Yarlung Tsangpo River based on measured data of CODCr, NH3-N and TP in the study area. Based on these data, determinations of ideal water environmental capacity, emissions of pollutants and remaining water environmental capacity of the study area were made by a one-dimensional steady water quality model under either section-head control or cross-section control. The data indicate that most of the monitoring sections in the study area experienced good water quality. The three pollutants all had large remaining water environmental capacity generally, but TP exceeded state levels in the two upstream functional areas, and levels above state standards of CODCr and TP were found in several calculation cells of the two downstream functional areas. Therefore, emissions of pollutants need to be reduced to protect the water environment quality of the Yarlung Tsangpo River.
ZHAO Xiang, LIU Zhaofei, WANG Rui, YAO Zhijun
. Analysis of the Water Environmental Capacity of Zhongba-Nyingchi Section of the Yarlung Tsangpo River[J]. Journal of Resources and Ecology, 2018
, 9(6)
: 690
-699
.
DOI: 10.5814/j.issn.1674-764x.2018.06.012
[1] Cao L.1993. Study on water environmental capacity and total pollutants discharge control in Lanzhou section of the Yellow River. Environmental Science, 14(1): 54-58. (in Chinese)
[2] Chen D J, Lv J, Jin S Q, et al.2007. Study on estimation and allocation of river water environmental capacity.Journal of Soil and Water Conservation, 21(3): 123-127. (in Chinese)
[3] Chen Y H, Li Y W, Mou H S,et al. 1994.Study on water environmental capacity for Jiujiang reach in the Yangtze River. Research of Environmental Sciences,1994 (1): 24-29. (in Chinese)
[4] Fan L L, Pang Y, Sun L P,et al.2007. Studies on the water environmental capacity of Xuzhou City.Water Resources Protection, 23(1): 57-59. (in Chinese)
[5] Fu Y C, Xu W, Fu M.2010. Research on the water environmental capacity status in China.China Water Resources, 2010(1): 26-31. (in Chinese)
[6] Hu G H, Zhao P L, Wang R X.2002. Study on Water Environment Capacity of the Mengjin-Huayuankou Reach of the Yellow River.Water Resources Protection, 2002(1): 26-28. (in Chinese)
[7] Jia J W, Lv S Y, Wang Z X.2008. Analysis on the water resource of the Yarlung Tsangpo River.Yangtze River, 39(17): 71-72. (in Chinese)
[8] Jiang H P, Wang D G.2001. Impact of regulating project on water quality near Macao.Journal of Hohai University(Natural Sciences), 29(1): 93-95. (in Chinese)
[9] Gong R Y, Zhou Y G.2001. Study on capacity of water environment of Liuzhou section of Liujiang River.Water Resource Protect, 2001(1): 31-32. (in Chinese)
[10] Li S Q, Li X L, Wu Y C, et al.2007. Actualit y and prospect on w ater environmental capacity research .Journal of Architectural Education in Institutions of Higher Learning, 16(3): 58-61. (in Chinese)
[11] Li X L, Yao J, Zhang J,et al.2011. A comparative study of assimilative capacity for different pollution control modes in a river. Environmental Science and Technology, 34(3): 144-148. (in Chinese)
[12] Li Z L, Xu Z X, Gong T L.2008. Characteristics of runoff variation in the Yarlung Tsangpo River basin.Geographical Research, 2008, 27(2): 353-361. (in Chinese)
[13] Liu L N, Huang C Y, Zhang L L,et al.2007. Water environmental capacity of section of Lhasa River section in urban district of Lhasa.Sichuan Water Resources, 28(3): 30-31. (in Chinese)
[14] Lv L L, Liu X W, Zhou H M, et al.2013. Spatial and temporal climate variations from 1978 to 2009 an their trend projection over the Yarlung Tsangpo River basin.Yellow River, 35(5): 27-29. (in Chinese)
[15] Nyi M, 2000. On delineation of food production system in Tibet. Geographical Research, 19(4): 407-414. (in Chinese)
[16] Shi T C, Wang F E, Fang X B.2010. Regional management strategy integrated with WASP model on water quality for river-network plain located in Huzhou District, Taihu Lake Basin.Acta Scientiae Circumstantiae, (3): 631-640. (in Chinese)
[17] Wang X Q.2001. Study on decision-making modeling of water environmental protection and economic development.Journal of Natural Resources, 16(3): 269-274. (in Chinese)
[18] Wang Y L, Zhou Z F, Wang L J, et al.2006. Study on water environmental risk capacity in Yellow River’s Lanzhou reach.Environmental Science and Technology, 29(6): 72-73. (in Chinese)
[19] Yuan L M.2004. Calculation and analysis of the water environmental capacity of surface water in urban district of Lhasa. Sichuan University. (in Chinese)
[20] Zhang H C, Dong J, Wang Z F.2013. The Latest Progress on Source Apportionment of Water Pollution Source. Environmental Monitoring in China, 29(1): 18-22. (in Chinese)
[21] Zhang Y, Liu Y, Li X G.2015. Calculation and analysis of the water environmental capacity in Liaohe River District.Technology of Soil and Water Conservation, (3): 23-25. (in Chinese)
[22] Zhang Y L.1992. The development of basic concept of water environmental capacity. Research of Environmental Science, 5(3): 59-61. (in Chinese)
