DOI: 10.1016/j.foreco.2014.11.004
Scopus记录号: 2-s2.0-84912141380
论文题名: Understory management and fertilization affected soil greenhouse gas emissions and labile organic carbon pools in a Chinese chestnut plantation
作者: Zhang J. ; Li Y. ; Chang S.X. ; Qin H. ; Fu S. ; Jiang P.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 337 起始页码: 126
结束页码: 134
语种: 英语
英文关键词: Castanea mollissima
; Fertilization
; Greenhouse gas (GHG)
; Labile organic C pools
; Understory replacement
Scopus关键词: Carbon
; Forestry
; Fruits
; Gas emissions
; Global warming
; Greenhouse gases
; Lakes
; Organic carbon
; Soil moisture
; Castanea mollissima
; Fertilization
; Greenhouse gas (GHG)
; Labile organic C pools
; Understory replacement
; Soil pollution
; carbon cycle
; fertilization (reproduction)
; forest management
; greenhouse gas
; nut
; nutrient availability
; organic carbon
; planation
; replacement
; soil fertility
; soil organic matter
; understory
; Biomass
; Castanea
; Fertilization
; Greenhouse Gases
; Organic Compounds
; China
; Castanea mollissima
英文摘要: Management practices markedly impact carbon (C) cycling in forest plantations. However, the interactive effects of understory management and fertilization on soil greenhouse gas (GHG) fluxes and labile organic C pools remain unclear in forest plantations. To investigate the effects of understory replacement, fertilization, and their interaction on soil GHG fluxes and labile organic C pools in a Chinese chestnut plantation, we conducted a 2×2 factorial experiment over a 12-month field study with four treatments: Control (understory removed without understory replacement or fertilization), understory replacement (understory removed and seeded with Medicago sativa L., MS), fertilization (F), and MS+F. The GHG fluxes were determined using a static chamber/GC technique. The seasonal pattern of GHG fluxes did not change in any of the treatments in this one-year study; however, soil GHG fluxes, total global warming potential (GWP) of GHG fluxes, and soil organic C (SOC), water soluble organic C (WSOC), microbial biomass C (MBC), and NO3--N concentrations were significantly affected by MS, F, and their interaction. In addition, GHG fluxes, GWP, and SOC, WSOC, MBC and NO3--N concentrations were markedly increased by fertilization, regardless of the understory replacement treatment (P<0.05), but they were increased by understory replacement only in the fertilized plots. The GHG fluxes were correlated with soil temperature and WSOC in all plots (P<0.05), but not with soil moisture and MBC. These findings suggest that understory replacement likely is the optimum management technique for reducing/minimizing GHG fluxes, while F can enhance the effects of MS on increasing soil organic C and nutrient availability. We conclude that a combination of a moderate rate of fertilization and understory replacement with legume species should be adopted to increase soil C sequestration, maintain soil fertility and sustainably develop chestnut plantations. © 2014. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65595
Appears in Collections: 影响、适应和脆弱性
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作者单位: Zhejiang Provincial Key Laboratory of Carbon Cycling in Forest Ecosystems and Carbon Sequestration, Zhejiang A and F University, Lin'an, China; Jiangsu Yanjiang Institute of Agricultural Sciences, Nantong, China; Department of Renewable Resources, University of Alberta, 442 Earth Sciences Building, Edmonton, AB, Canada; Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Xingke Road 723, Tianhe District, Guangzhou, China
Recommended Citation:
Zhang J.,Li Y.,Chang S.X.,et al. Understory management and fertilization affected soil greenhouse gas emissions and labile organic carbon pools in a Chinese chestnut plantation[J]. Forest Ecology and Management,2015-01-01,337