文章基本信息

标题：Effect of alder on soil bacteria offers an alternative explanation to the role played by alder in rock weathering
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作者：Afriapollo Syafarudin ; Ita Soegiarto ; Billy Tunas 等
期刊名称：Proceedings of the National Academy of Sciences
印刷版ISSN：0027-8424
电子版ISSN：1091-6490
出版年度：2019
卷号：116
期号：40
页码：19786-19788
DOI：10.1073/pnas.1910718116
出版社：The National Academy of Sciences of the United States of America
摘要：The article by Perakis and Pett-Ridge in PNAS (1) stimulated an interesting discussion (2) on the role of nitrogen-fixing alder in enhancing rock weathering and supply of rock-derived nutrients. The authors ascribe the accelerated rate of weathering to the generation of acidic conditions in the soil due to excess nitrogen (1). Our work on Alnus nepalensis (Himalayan alder) may offer an alternative explanation to the role of alder on rock weathering. We focused on the changes in bacterial diversity and community structure in soil with the development of alder stands. These stands were designated as juvenile, young, and mature depending upon the stages of alder growth. We assessed the patterns, degree of chemical weathering, and the enrichment and … [↵][1]1To whom correspondence may be addressed.