甘肃省农田土壤地下淋溶氮磷流失系数测算初报

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英文篇名：Calculation of Underground Leaching Nitrogen and Phosphorus Loss Coefficient of Farmland Soil in Gansu Province 作者：马彦 ; 杨虎德 ; 冯丹妮 英文作者：MA Yan;YANG Hude;FENG Danni;Gansu Academy of Agriculture Science;Institute of Soil,Fertilizer and Water-saving Agriculture,Gansu Academy of Agriculture Science; 关键词：甘肃省 ; 地下淋溶 ; 氮、磷流失系数 英文关键词：Gansu Province;;Underground leaching;;Nitrogen and phosphorus loss coefficient 中文刊名：GSNK 英文刊名：Gansu Agricultural Science and Technology 机构：甘肃省农业科学院;甘肃省农业科学院土壤肥料与节水农业研究所; 出版日期：2019-06-25 出版单位：甘肃农业科技 年：2019 期：No.522 基金：甘肃省科技计划“甘肃省农田土壤N、P面源污染特征及防控技术研究”(1604FKCA125)部分内容 语种：中文; 页：GSNK201906011 页数：4 CN：06 ISSN：62-1050/S 分类号：41-44

摘要

对甘肃省8个农田土壤地下淋溶监测点淋溶水中氮磷含量进行了测定分析,初步得出了甘肃省农田土壤地下淋溶氮、磷流失系数,总氮流失系数为0.19%～153.3%,总磷流失系数为0.0011%～0.32%。氮素在土壤中淋失量相对较大,磷素淋失量相对较小。常规处理淋溶条件下,总氮流失主要以硝态氮为主。
        Based on the analysis of nitrogen and phosphorus contents in leaching water of 8 underground leaching monitoring sites in Gansu Province,the nitrogen and phosphorus loss coefficients of underground leaching in Gansu Province were obtained. The total nitrogen loss coefficient was 0.19% ～153.3%. The total phosphorus loss coefficient is from 0.0011% ～0.32%. The amount of nitrogen leaching in the soil is relatively large,and the amount of phosphorus leaching is relatively small. Under the conventional treatment of leaching conditions,the total nitrogen loss is mainly nitrate nitrogen.

引文

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