目的为探究黄土高原风水复合侵蚀对土壤团聚体有机碳的影响。方法通过室内模拟降雨及风洞试验,研究不同侵蚀营力和侵蚀顺序下5~2 mm土壤团聚体有机碳及其活性碳组分的流失机制。结果1)风水复合侵蚀下土壤团聚体有机碳(SOC)、易氧化有机碳(EOC)、颗粒态有机碳(POC)、可溶性有机碳(DOC)质量分数较单营力侵蚀分别降低7%~25%、8%~29%、52%~71%、16%~32%。2)风水复合侵蚀中先风后水侵蚀(WR)下,SOC、EOC、POC、DOC、微生物生物量碳(MBC)质量分数较先水后风侵蚀(RW ...
王艳辉 +3 more
doaj
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