DOI: 10.1016/j.foreco.2014.04.023
Scopus记录号: 2-s2.0-84900818470
论文题名: Effects of harvest residue management on soil carbon and nitrogen processes in a Chinese fir plantation
作者: Hu Z. ; He Z. ; Huang Z. ; Fan S. ; Yu Z. ; Wang M. ; Zhou X. ; Fang C.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 326 起始页码: 163
结束页码: 170
语种: 英语
英文关键词: Cunninghamia lanceolata
; Labile carbon pools
; Soil carbon
; Subtropical China
Scopus关键词: Carbon
; Carbon dioxide
; Forestry
; Lakes
; Nitrogen
; Tropics
; Cunninghamia lanceolata
; Labile carbon
; Soil carbon
; Soil CO
; Subtropical China
; Soils
; carbon dioxide
; carbon flux
; coniferous tree
; crop residue
; dissolved organic carbon
; harvesting
; nitrogen
; plantation
; seasonal variation
; soil carbon
; soil nitrogen
; soil temperature
; subtropical region
; topsoil
; Carbon
; Carbon Dioxide
; Forestry
; Lakes
; Nitrogen
; Soil
; Tropics
; China
英文摘要: Plantation management can affect ecosystem soil carbon (C) and nitrogen (N) cycles. However, how different harvest residue management strategies impact soil C and N processes over the long term is largely unclear. In this study, we examined effects of harvest residue management on soil C and N concentrations, labile soil C and N pools and soil CO2 efflux (Rs) at different stages after Chinese fir (Cunninghamia lanceolata) was replanted in subtropical China. The residue management treatments were slash and burning, whole-tree harvesting, stem-only harvesting and stem only harvesting with double residue retention. Our results showed that the harvest residue management treatments did not differ significantly in their effect on soil C and N, mineral N (NH4 +-N plus NO3 --N), dissolved organic C or total dissolved N concentrations, except for soil N concentrations in surface soil (0-10cm) at year 3 and soil total dissolved N concentrations at year 12, which were significantly lower where the slash was burnt than in the double residue retention treatment. Similarly, Rs did not differ significantly among the four residue management strategies at year 15. Topsoil temperature and topsoil moisture were also unaffected by harvest residue management treatment. Soil temperature was found to be the most important factor controlling the temporal pattern of Rs, accounting for 65.8% of seasonal variation of Rs. There was no significant difference in temperature sensitivity of Rs (Q10) or annual Rs among the four treatments. These results indicated that harvest residue management may not significantly cause long-term effects on soil C cycling and N availability in subtropical Chinese fir plantations. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65918
Appears in Collections: 影响、适应和脆弱性
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作者单位: College of Geographical Science, Fujian Normal University, Fuzhou 350007, China; College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, China; International Network for Bamboo and Rattan (INBAR), No. 8 Futong Dongdajie, Wangjing, Chaoyang District, Beijing 100102, China; Coastal Ecosystems Research Station of Yangtze River Estuary, Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, The Institute of Biodiversity Science, Fudan University, Shanghai 200433, China
Recommended Citation:
Hu Z.,He Z.,Huang Z.,et al. Effects of harvest residue management on soil carbon and nitrogen processes in a Chinese fir plantation[J]. Forest Ecology and Management,2014-01-01,326