DOI: 10.1016/j.foreco.2014.03.019
Scopus记录号: 2-s2.0-84898814028
论文题名: Soil carbon stocks and forest biomass following conversion of pasture to broadleaf and conifer plantations in southeastern Brazil
作者: Cook R.L. ; Binkley D. ; Mendes J.C.T. ; Stape J.L.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2014
卷: 324 起始页码: 37
结束页码: 45
语种: 英语
英文关键词: Biomass
; Brazil
; Soil carbon
; Tropical plantations
Scopus关键词: Biomass
; Carbon
; Carbon dioxide
; Forestry
; Organic carbon
; Plants (botany)
; Productivity
; Brazil
; Commercial plantation
; Plantation establishment
; Soil carbon
; Soil carbon sequestration
; Southeastern Brazil
; Sustainable forest management
; Tropical plantations
; Soils
; accretion
; broad-leaved forest
; coniferous forest
; forest management
; Oxisol
; phytomass
; plantation
; soil carbon
; sustainable forestry
; Biomass
; Brazil
; Carbon
; Forestry
; Plants
; Productivity
; Soil
; Brazil
英文摘要: Increased soil carbon sequestration can potentially mitigate CO2 emission and can indicate sustainable forest management. This study aims to determine the relative influence of commercial plantation tree species on soil carbon following establishment on former tropical pastures. Soil carbon (organic horizon plus mineral soil from 0 to 45cm) and stemwood productivity were quantified from 6 to 34year-old conifer and broadleaf plantations in a sandy Oxisol (Typic Hapludox) in southeastern Brazil. Study plots consisted of ten pastures paired with broadleaf plantations and ten additional broadleaf plantations paired with conifer plantations. Pastures primarily consisted of Brachiaria decumbens Stapf., while broadleaf plantations were primarily Eucalyptus, but also included one plot each of three other broadleaf species. Conifer stands were made up of Pinus species. Average stemwood productivity (± standard error) was 9.7 (±1.0) MgCha-1yr-1 for broadleaf and 5.7 (±0.5) MgCha-1yr-1 for conifer plantations, but did not correlate to soil C. The soil C in the paired Pasture-Broadleaf plots averaged 36.0±1.7MgCha-1 in pastures and 36.8±1.9MgCha-1 in broadleaf plantations. The Broadleaf-Conifer plots averaged 38.3±1.9MgCha-1 for broadleaf plantations and 36.0±1.6MgCha-1 for conifers. Our results show little difference in soil C across vegetation types, providing evidence that conifer and broadleaf plantations overall maintain similar levels of soil carbon to pasture land-use up to 34years following land conversion. Soil C differences between Pasture-Broadleaf pairs indicated a small decline in soil C accretion early after plantation establishment, followed by recovery to slightly higher accretion rates. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65933
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, NC 27695, United States; Department of Ecosystem Science and Sustainability, Colorado State University, Fort Collins, CO 80523, United States; Department of Forest Sciences, University of Sao Paulo, Piracicaba, Sao Paulo 13419, Brazil; Department of Plant, Soil, and Agricultural Systems, Southern Illinois University, 1205 Lincoln Drive, Mailcode 4415, Carbondale, IL 62901, United States
Recommended Citation:
Cook R.L.,Binkley D.,Mendes J.C.T.,et al. Soil carbon stocks and forest biomass following conversion of pasture to broadleaf and conifer plantations in southeastern Brazil[J]. Forest Ecology and Management,2014-01-01,324