DOI: 10.1016/j.foreco.2012.12.031
Scopus记录号: 2-s2.0-84873169420
论文题名: Short-term effects of harvesting on carbon storage of boreal Larix gmelinii-Carex schmidtii forested wetlands in Daxing'anling, northeast China
作者: Mu C. ; Lu H. ; Wang B. ; Bao X. ; Cui W.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 293 起始页码: 140
结束页码: 148
语种: 英语
英文关键词: Biomass
; Carbon storage
; Harvest
; Larix gmelinii-Carex schmidtii forested wetlands
; Net primary productivity
; Soil organic carbon
Scopus关键词: Carbon storage
; Forested wetlands
; Harvest
; Net primary productivity
; Soil organic carbon
; Biomass
; Ecosystems
; Harvesting
; Soils
; Wetlands
; Forestry
; biogeochemistry
; boreal forest
; carbon sequestration
; carbon sink
; forested catchment
; harvesting
; net primary production
; organic carbon
; soil carbon
; soil organic matter
; China
; Da Hinggan Mountains
; Carex
; Larix
; Larix gmelinii
英文摘要: Forested wetlands are recognized as long-term terrestrial C sinks, so they are very important in global C accounting. Daxing'anling is the main area of Chinese forested wetlands, however, effects of harvesting on ecosystem C storage for boreal forested wetlands are still poorly understood. The aim of this study was to evaluate the short-term effects of selective harvest on ecosystem C storage and C sequestration for Larix gmelinii-Carex schmidtii forested wetlands in Daxing'anling, northeast China, by measuring and comparing changes in its total ecosystem C storage (biomass, litter, and soil C pools) and annual C sequestration under four harvest treatments (0.0% - uncut, 25% - low, 35% - moderate and 50% - high of total volume) after 5years, so as to provide references for managing wetland resources. We found that: (1) the vegetation C storage of harvested plots decreased significantly by 15.5-38.6% of that 99.61tCha-1 in the uncut stand and showed a decreasing trend with increasing harvest intensity; (2) low intensity harvest increased the soil C storage by 19.4%, however, both moderate- and high-intensity harvest caused significant reductions (30.1-48.5%) relative to 174.93tCha-1 in the uncut stand; (3) low intensity harvest led to a mild increase in the total ecosystem C storage while moderate- and high-intensity harvest resulted in significant reductions (33.2-41.6%) compared with the uncut stand (274.54tCha-1); (4) significantly greater total NPP (69.1-83.2%) and annual C sequestration (52.0-78.7%) were in the low- and moderate-intensity harvest stands compared to the high intensity harvest and uncut stands (8.28tha-1yr-1, 5.08tCha-1yr-1 and 6.48tha-1yr-1, 3.52tCha-1yr-1). Finally, it appears that low intensity harvest may not only be capable of sustaining the ecosystem C sink for this forested wetland type, but restore its C sequestration capacity more efficiently. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66711
Appears in Collections: 影响、适应和脆弱性
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作者单位: Center for Ecological Research, Northeast Forestry University, 26 Hexing Rd., Xiangfang District, Harbin, Heilongjiang 150040, China
Recommended Citation:
Mu C.,Lu H.,Wang B.,et al. Short-term effects of harvesting on carbon storage of boreal Larix gmelinii-Carex schmidtii forested wetlands in Daxing'anling, northeast China[J]. Forest Ecology and Management,2013-01-01,293