Can earthworms simultaneously enhance decomposition and stabilization of plant residue carbon?

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• 作者：Ingrid M. Lubbers^a ; ^{Ingrid.Lubbers@wur.nl} ; Mirjam M. Pulleman^a ; ^b ; Jan Willem Van Groenigen^a
• 关键词：Lumbricus rubellus ; Aporrectodea caliginosa ; Maize residues ; CO2 emission ; Soil organic matter ; Multi-year experiment
• 刊名：Soil Biology and Biochemistry
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：105
• 期：Complete
• 页码：12-24
• 全文大小：2191 K
• 卷排序：105

文摘

Earthworms increase cumulative CO2 emissions by at least 25%. Earthworms increase the amount of soil C associated with the macroaggregate fraction. Earthworms can thus simultaneously enhance CO2 emission and C incorporation. Earthworm presence results in lower total C content due to higher OM decomposition. Earthworms stimulate OM mineralization more than that they stabilize residue C.