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Effect of O2 Concentration on Humification of Corn Stalk in Soil
Author(s): 
Pages: 106-108,132
Year: Issue:  1
Journal: Journal of Northeast Forestry University

Keyword:  Corn stalkHumusHumificationOxygen;
Abstract: 研究了实验室模拟条件下添加玉米秸秆对土壤中各有机质组分数量的影响以及不同氧气体积分数对玉米秸秆在土壤中腐殖化进程的影响.结果表明:添加玉米秸秆对土壤有机碳(SOC)、水溶性有机碳(wSOC)、胡敏酸(HA)和富里酸(FA)数量的增加有明显作用;高氧和低氧环境均有利于玉米秸秆在土壤中腐殖化的进行;高氧条件有利于腐殖化初期FA的生成,但持续高氧环境不利于FA的积累;在腐殖化后期,高氧条件使FA大量转化为HA并使得HA大量积累.
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