The effects of understorey dwarf bamboo (Sasa kurilensis) removal on soil fertility in a Betula ermanii forest of northern Japan

Ecological Research - Tập 21 - Trang 315-320 - 2005
Shri Kant Tripathi1,2, Akihiro Sumida2, Kiyomi Ono2, Hideaki Shibata3, Shigeru Uemura3, Koichi Takahashi4, Toshihiko Hara2
1Department of Botany, Banaras Hindu University, Varanasi, India
2The Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan
3Northern Forestry and Development Office, Field Science Center for Northern Biosphere, Hokkaido University, 250 Tokuda, Japan
4Department of Biology, Faculty of Science, Shinshu University, Matsumoto, Japan

Tóm tắt

We investigated the changes in soil microbial biomass C (MBC), microbial biomass N (MBN) and N mineralization in Sasa kurilensis-present (SP) and S. kurilensis-removed (SR) stands in a Betula ermanii forest. The mean levels of MBC and MBN were significantly higher in the SR stand than in the SP, which may have positively influenced the N-mineralization rate as depicted by a significant positive correlation between these variables and the N-mineralization rate. N immobilization and subsequent N release along with decreased use of available soil N due to S. kurilensis removal may have ensured greater N availability in the SR stand.

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Ecological Research

Tập 21

315-320

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