太湖地区典型水稻土稻-麦轮作地表径流中磷的变动规律

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Abstract

Little is known about the exact amount of phosphorus(P) loss per year from the paddy soils in Taihu Lake region and the contribution of this P loss to the eutrophication of Taihu Lake among all kinds of non-point sources.A field plot experiment was conducted to investigate the changes of P concentrations in runoff and the reasons responsible for these changes on two types of paddy soils,the permeable paddy soil in Anzhen site and the waterlogged paddy soil in Changshu site in the Taihu Lake Region from June 2000 to June 2002.The results showed that particulate P was the dominant portion in runoff and P fertilization had a significantly effect on the P concentrations in runoff.Phosphorus concentration in runoff for each treatment seemed to decrease from the first runoff event to the last event both in rice growing seasons and wheat growing season.Beside,the greatest potential risk of P loss by runoff might occur in one month in rice growing season and one or two months in wheat growing season after P fertilization.P concentrations in runoff from the waterlogged paddy soil were greater than those from the permeable paddy soil if the runoff events occurred at the same period.It was also observed that the paddy soil type had an obvious effect on the number of runoff event.

Key words： Paddy soil Soil phosphorus Surface runoff Eutrophication Phosphorus concentrations

Received: 25 February 2008

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	ZHANG Hong-ai
	ZHANG Huan-chao

Cite this article:

ZHANG Hong-ai,ZHANG Huan-chao. Study on phosphorus concentrations in runoff from paddy soils of rice-wheat double cropping system in Taihu Lake region[J]. , 2008, 27(1): 17-23.

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http://www.ecolsci.com/EN/ OR http://www.ecolsci.com/EN/Y2008/V27/I1/17

[1] 鲁如坤.1998.土壤-植物营养学:原理和施肥[M].北京:化学工业出版社.

[2] 徐琪,杨林章,董元华,等.1998.中国稻田生态系统[M].北京:中国农业出版社.

[3] Heckrath G,Brookes P C,Poulton P R et al.1995.Phosphorus leaching from soils containing deferent phosphorus concentrations in the Broadbalk Experiment[J].Journal Environment Quality,24:904-910.

[4] Hesketh N,Rrookes P C.2000.Development of a indicator for risk of phosphorus leaching[J].Journal Environment Quality,29:105-110.

[5] Jordan C,McGuckin S O,Smith R V.2000.Increased predicted losses of phosphorus to surface water from soils with high Olsen-P concen-tration[J].Soil Use and Management,16:27-35.

[6] 李荣刚,夏源陵,吴安之.2000.江苏太湖地区水污染物及其向水体的排放量[J].湖泊科学,12(2):147-153.

[7] 范成新.1996.太湖水体生态环境历史演变[J].湖泊科学,8(4):297-304.

[8] 孙顺才,黄漪平.1993.太湖[M].北京:海洋出版社.

[9] Zhang H C,Cao Z H,Shen Q R,et al.2003.Effect of phosphate fertilizer application on phosphorus (P) losses from paddy soil in Taihu lake region[J].Chemosphere,50:695-701.

[10] Zhang H C,Cao Z H,Wang G P.2003.Winter runoff losses of phosphorus from paddy soils in the Taihu lake region of south China[J].Chemosphere,52:1461-1166.

[11] 高超,张桃林.2000.太湖地区农田土壤磷素动态及其环境影响分析[J].农村生态环境,16(4):224-227.

[12] 张水铭,马杏法,汪祖强.1993.农田排水中磷素对苏南太湖水系的污染[J].环境科学,14(6):24-30.

[13] 马立珊,汪祖强,张水铭,等.1997.苏南太湖水系农业面源污染及其控制对策研究[J].环境科学学报,17(1):39-47.

[14] 中国科学院南京土壤研究所.1978.土壤理化分析[M].上海:上海科学技术出版社.

[15] Hansen N C,Gupta S C,and Moncrif J F.2000.Snowmelt runoff,sediment,and phosphorus losses under three different tillage systems[J].Soil and tillage research,57:93-100.

[1]	. [J]. Ecological Science, 2018, 37(6): 75-82.