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湖泊科学  2003 

北京官厅水库流域农田地表径流生物可利用磷流失规律

DOI: 10.18307/2003.0204

Keywords: 生物可利用磷,侵蚀泥沙,农田地表径流,官厅水库流域

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Abstract:

在模拟降雨条件下(30-69mm/39min),对官厅水库流域玉米地和休闲地地表径流泥沙和生物可利用磷(BAP)流失进行了初步研究.累积泥沙产量受雨强、坡度和作物覆盖影响,变幅为305.1-24933.4g/10m2;径流平均颗粒态生物可利用磷(BPP)、溶解态磷(SP)浓度都超出水体允许临界值0.02mg/L,表明流域农田地表径流对库区水体存在潜在污染危害;径流累积BAP流失达0.08-4.804g/10m2,估算的农田径流BAP流失达0.49kg/(hm2·a)以上.79.7%以上的BAP是颗粒态的.研究结果有助于采取措施减少农田径流向库区输入生物可利用磷、准确地评估流域农业管理实践对水库水质的影响.

References

[1]  Andrew N. Sharpley, Chapra S C, Wedepohl R, et al. Managing agricultural phosphorus for protection of surface waters: Issues and options. J Environ., Qual 1994, 23:437-451
[2]  金相灿,屠清瑛,章宗涉等. 中国湖泊富营养化. 北京:中国环境科学出版社,1990: 1-5; 103-115
[3]  Sims J T, Edwards A C, Schoumans O F, et al. Integrating soil phosphorus testing into nvironmentally based agricultural management practices. J Environ Qual,2000,29:60-71
[4]  U S Environmental Protection Agency. Quality criteria for water. U S Gov Print Office, Washington D C, 1976
[5]  Gray C B J, Kirkland R A. Suspended sediment phosphorus composition in tributaries of the Okanagan Lakes, BC. Water Res, 1986, 20: 1193-1196
[6]  梁涛, 张秀梅,章申. 官厅水库及永定河枯水期水体氮、磷和重金属含量分布规律. 地理科学进展,2001, 20(4): 341-346
[7]  晏维金,章申,唐以剑. 模拟降雨条件下沉积物对磷的富集机理. 环境科学学报, 2000, 20(3): 332-337
[8]  Sharpley A N. Estimating phosphorus in agricultural runoff available to several Algae using iron-oxide paper strips. J Environ Qual, 1993, 22: 678-680
[9]  Steel R G D, Torrie J H. Principles and procedures of statistics. 2nd ed. New York: McGraw-Hill Book Co, 1980
[10]  Timmons D R, Holt R F, Latterell J J. Leaching of crop residues as a source of nutrients in surface runoff water. Water Resour. Res, 1970, 6:1367-1375
[11]  Andrew N. Sharpley, Smith S J, et al. The transport of bioavailable phosphorus in agricultural runoff. Environ Qual, 1992, 21: 30-35
[12]  高超,张桃林. 农业非点源污染对水体富营养化的影响及对策. 湖泊科学. 1999, 11(4): 369-375
[13]  屠清瑛,顾丁锡,尹澄清等. 巢湖--富营养化研究. 合肥:中国科学技术大学出版社,1990: 226
[14]  袁博宇. 官厅水库水质现状及趋势分析. 北京水利, 2000, 5: 29-31
[15]  Douglas C. Montgomery. Design and analysis of experiments. Third edition. New York John Wiley & Sons Inc, 1991:43-50
[16]  Lee G F, Jones R A, Rast W. Availability of phosphorus to phytoplankton and its implications for phosphorus management strategies. In: Loehr R C et al. ed. Phosphorus management strategies for lakes. Ann Arbor Sci, Ann Arbor, MI. 1980: 259-308

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