| 应用分形理论估算丹江口水库水源区总氮、总磷的流失量 |
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| 引用本文： | 李中原,王国重,左其亭,屈建钢.应用分形理论估算丹江口水库水源区总氮、总磷的流失量[J].水土保持通报,2017,37(3):302-306. |
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| 作者姓名： | 李中原 王国重 左其亭 屈建钢 |
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| 作者单位： | 1. 河南省水文水资源局,河南郑州,450003;2. 黄河水文水资源科学研究院,河南郑州,450004;3. 郑州大学水利与环境学院,河南郑州,450001;4. 河南省水土保持监督监测总站,河南郑州,450008 |
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| 基金项目： | 河南省科技攻关计划“基于分形理论的丹江口水库水源区农业面源污染研究及防治措施”（GG201412） |
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| 摘 要： | 目的]掌握区域农业面源污染物的流失状况,证明分形计算结果的可靠性。方法]采用分形理论对丹江口水库水源区河南省所在的区域2013年总氮(TN),总磷(TP)的流失量进行估算,并与输出系数法的值进行比较。结果]研究区污染物的流失以氮为主,TN的流失量是TP的7.16倍;禽畜养殖引起的流失量最多,占了总量的69.93%,农田化肥中的流失量占21.99%;灌河产生的污染物最多,其次是丹江、淇河、滔河,但在流失强度上却是滔河最大,其次是灌河、丹江、淇河;通过配对t检验分析将分形方法计算的污染物总量与输出系数法相比,在0.1水平下有统计学意义,说明前者较后者更能反映实际。结论]用分形方法估算区域污染物的面源污染是可行的,应当加强区域禽畜粪尿和农田化肥的管理,以确保丹江口水库水质。
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| 关 键 词： | 分形理论 水系分维 农业面源污染 TN TP流失 |
| 收稿时间： | 2016/11/6 0:00:00 |
| 修稿时间： | 2016/11/25 0:00:00 |
Applying Fractal Theory to Estimate Loss of Total Nitrogen and Total Phosphorus in Danjiangkou Reservoir Catchment |
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| LI Zhongyuan,WANG Guozhong,ZUO Qiting and QU Jiangang.Applying Fractal Theory to Estimate Loss of Total Nitrogen and Total Phosphorus in Danjiangkou Reservoir Catchment[J].Bulletin of Soil and Water Conservation,2017,37(3):302-306. |
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| Authors: | LI Zhongyuan WANG Guozhong ZUO Qiting and QU Jiangang |
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| Institution: | Hydrology and Water Resources Bureau in Henan Province, Zhengzhou, He''nan 450003, China,Hydrology and Water Resources of Yellow River Scientific Research Institute, Zhengzhou, He''nan 450004, China, China,College of Water Conservancy and Environment, Zhengzhou University, Zhengzhou, He''nan 450001, China and Soil and Water Conservation Supervision and Inspection Station in Henan Province, Zhengzhou, He''nan 450008, China |
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| Abstract: | Objective] To grasp the situation of agricultural non-point source pollution in Danjiangkou reservoir catchment areas in He''nan Province, and to prove the reliability of the fractal theory calculation results.Methods] The fractal theory was applied to estimate the loss of total nitrogen(TN) and total phosphorus(TP) in the Danjiangkou reservoir region of He''nan Province in 2013. The estimated values were compared with the ones from output coefficient method.Results] Pollutants loss was given priority to with nitrogen in the area, the TN loss was 7.16 times of TP loss. The livestock farming contributed the largest amount of loss, accounting for 69.93% of the total loss. The second was the loss from farmland fertilizer, taking up 21.99% of the total one. The pollutant yield of Guanhe River was the most, followed by Danjiang River, Qihe River and Taohe River. The pollutant erosion intensity had a rank as Taohe River > Guanhe River > Danhe River > Qihe River. The significant paired T test(<0.1) showed that the pollutant total amounts calculated by fractal method was coincided with the ones by output coefficient method, which indicated the former could reflect the actual situation more than that of the latter.Conclusions] Fractal method is feasible to estimate logical agricultural non-point source pollution. It is time to strengthen management of livestock manure and chemical fertilizer to ensure the water quality of Danjiangkou Reservoir. |
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| Keywords: | fractal theory fractal dimension of water system agricultural non-point source pollution total nitrogen and total phosphorus loss |
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