Cite this article: | 李玖颖,彭翌豪,柳真杨,等.黑龙江省地表水灌溉水质评价分析[J].灌溉排水学报,0,():-. |
| Li Jiuying,Peng Yihao,Liu Zhenyang,et al.黑龙江省地表水灌溉水质评价分析[J].灌溉排水学报,0,():-. |
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DOI: |
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Analysis and evaluation of Surface Water Quality in Heilongjiang Province |
Li Jiuying1, Peng Yihao2, Liu Zhenyang2, Wei Qi2
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1.Heilongjiang Irrigation Drainage and Water Saving Technology Cente;2.College of Agricultural Engineering, Hohai University
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Abstract: |
【Objective】Establishing Reasonable Management Strategies to Improve Irrigation Water Quality. 【Method】The spatial and temporal variation characteristics of irrigation water (Surface Water) quality indicators in Heilongjiang Province were analyzed by Office and ArcGIS software, based on 16 water quality monitoring indicators from 295 sites in Heilongjiang Province from May to August 2017, and the Surface Water Quality Evaluation Standard (GB 3838-2002) and Irrigation Water Quality Standard for Farmland (GB5084-2005). 【Result】 1) The main pollutants of irrigation water quality in Heilongjiang Province were organic pollutants (BOD5, COD and permanganate index) and non-point source pollutants (ammonia nitrogen, TN and TP), of which only 60.9%~76.7% and 68.6%~78.3% of the measured points could meet the class III standard. The performance of non-point source pollution indicators is poor, and the problem of excessive TN and TP indicators is serious. 2) In terms of time change, with the development of growing season, the number of inferior water measurement points of organic and non-point source pollution indicators is increasing gradually, and this phenomenon is more obvious in TN and TP indicators. 3) The high-risk areas of agricultural non-point source pollution indicators are mainly concentrated in Jiamusi and Qitaihe. The irrigation areas include Helihe irrigation area, Jinsha irrigation area, Sanhe irrigation area, Mengjiagang irrigation area and Wanjia irrigation area.【Conclusion】Irrigation water quality in Heilongjiang Province is mainly affected by agricultural non-point source pollution indicators, especially for TN and TP. Establishing reasonable water and fertilizer management strategy is an important way to improve irrigation water quality in Heilongjiang Province. |
Key words: Irrigation Water; Water Quality Assessment; Eutrophication; Non-point Source Pollution; Spatial and Temporal Distribution |
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