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《Rural Eco-environment》 1989-02
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Qin Zuping Xu Qi(Dept.of Environmental Science,Wuhan University ) (Nanjing Institute of Soil Science,Academia Sinica )  
This paper deals with the effects of hydrological transfers, i.e., precipitation, irrigation, leaching and surface runoff, on the balance of nitrogen, phosphorus, potassium, calcium, magnesium and sulphur in the rice field ecosystm, cropped with wheat-rice rotation, in the Tai Lake region of Jiangsu Province. The results show-edi a. the sequence of the quantities of the nutrients transfered by hydrological pathway was in the order of Ca, Mg, S,K,N, and P.b.the capacities of calcium and magnesium in the soil nutrient pool were very significantly influenced by hydrological transfers, which resulted in the negative balance for these two elements, w-hile the effect on the capacities of nitrogen and potassium was rather small, the least effect was found in that of phosphorus, c. the contributions of hydrological input to the total input of calcium, magnesium and sulphur ranged from 50% to 88%) on the other hand, the.output contributions were from 73% to 94%. It could be concluded that hydrological transfers played a predominant role in the cycling of these three elements.
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Chinese Journal Full-text Database 10 Hits
1 HUANG Tao-zhen YUAN ru-hua (Institute of water resources economy, Hohai University, Nanjing 210098);The Countermeasure about Abnormal Climate Influencing on Taihu Water Resources and Social Economy[J];Acta Geographica Sinica;2000-S1
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【Secondary References】
Chinese Journal Full-text Database 2 Hits
1 PENG Pei-qin{1,2},QIU Shao-jun1(1.College of Resource and Environment,Hunan Agricultural University,Changsha 410128,China;2.Laboratory of Subtropical Agro-ecology,Institute of Subtropical Agriculture,The Chinese Academy of Sciences,Changsha 410125,China);AGRICULTURAL ENVIRONMENT AND ITS SUSTAINABLE DEVELOPMENT AT EMBANKMENT REGION OF DONGTING LAKE[J];Resources and Environment in the Yangtze Basin;2005-03
2 YU Hui-bin1,2,XI Bei-dou2,GUO Xu-jing1,2,ZHAI Li-hua2,3,HE Lian-sheng2,XU Qi-gong2,LIU Hong-liang21.School of Environment,Beijing Normal University,Beijing 100875,China2.Chinese Research Academy of Environmental Sciences,Beijing 100012,China3.Department of Environmental Science and Engineering,Tsinghua University,Beijing 100084,China;Effect of Rainfall Runoff on Nitrogen and Phosphorus Loss in Farming Drainage Ditch[J];Research of Environmental Sciences;2009-04
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