Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2018.02.050 |
Soil organic carbon stocks in three Canadian agroforestry systems: From surface organic to deeper mineral soils | |
Lim, Sang-Sun1,2; Baah-Acheamfour, Mark1; Choi, Woo-Jung2; Arshad, Muhammad A.1; Fatemi, Farrah3; Banerjee, Samiran4; Carlyle, Cameron N.5; Bork, Edward W.5; Park, Hyun-Jin2; Chang, Scott X.1 | |
2018-05-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2018 |
卷号 | 417页码:103-109 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada; South Korea; USA; Switzerland |
英文摘要 | Our understanding of the effect of agroforestry systems on soil organic carbon (SOC) is largely limited to the upper layer of the mineral soil, while LFH (litter, partially decomposed litter and humus) and deeper soil layers are poorly studied. In this study, the effects of three different agroforestry systems (hedgerow, shelterbelt, and silvopasture) and their component land-cover types (treed area and adjacent herbland) on SOC stock in LFH and mineral soil layers (0-75 cm) were investigated across 36 sites in central Alberta, Canada. The SOC stock of mineral soil (0-75 cm) was not affected by agroforestry systems but by land-cover type. The treed area had greater (p < 0.001) SOC in the 0-75 cm mineral soil (25.5 kg C m(-2)) than the herbland (19.4 kg C m(-2)), driven by the greater (p < 0.001) SOC level in the top 0-30 cm rather than that in the deeper layers (30-75 cm). Within the treed area, the silvopasture system that was dominated by broad-leaf deciduous trees had 56-70% more SOC in the 0-10 cm soil than in the hedgerow and shelterbelt systems. The SOC stock in the 0-10 cm layer was positively (p = 0.025) related to the C stock of the overlying LFH layer in the silvopasture system. These results together with the 22-24% higher dissolved organic carbon (DOC) concentration in the silvopasture than in the other systems suggest that the greater SOC stock in the 0-10 cm mineral soil could be attributed to the higher rates of translocation of DOC from the LFH in the silvopasture than that in shelterbelt or hedgerow. We conclude that SOC stock in the top mineral soil (e.g., 0-30 cm) is more responsive to changes in land-cover type and the LFH layer plays an important role in increasing SOC stock in the surface mineral soil of the agroforestry systems in central Alberta. |
英文关键词 | Carbon sequestration Hedgerow Shelterbelt Silvopasture Tree species |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000430778900009 |
WOS关键词 | SILVOPASTORAL SYSTEMS ; BRITISH-COLUMBIA ; LAND-USE ; STORAGE ; SEQUESTRATION ; LITTER ; FOREST ; TREES ; DECOMPOSITION ; PASTURE |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/23122 |
专题 | 气候变化 |
作者单位 | 1.Univ Alberta, Dept Renewable Resources, 442 Earth Sci Bldg, Edmonton, AB T6G 2E3, Canada; 2.Chonnam Natl Univ, Dept Rural & Biosyst Engn, Gwangju 61186, South Korea; 3.St Michaels Coll, Environm Studies Program, Colchester, VT 05439 USA; 4.Agroscope, Dept Agroecol & Environm, CH-8046 Zurich, Switzerland; 5.Univ Alberta, Dept Agr Food & Nutr Sci, Agr Forestry Ctr 410, Edmonton, AB T6G 2P5, Canada |
推荐引用方式 GB/T 7714 | Lim, Sang-Sun,Baah-Acheamfour, Mark,Choi, Woo-Jung,et al. Soil organic carbon stocks in three Canadian agroforestry systems: From surface organic to deeper mineral soils[J]. FOREST ECOLOGY AND MANAGEMENT,2018,417:103-109. |
APA | Lim, Sang-Sun.,Baah-Acheamfour, Mark.,Choi, Woo-Jung.,Arshad, Muhammad A..,Fatemi, Farrah.,...&Chang, Scott X..(2018).Soil organic carbon stocks in three Canadian agroforestry systems: From surface organic to deeper mineral soils.FOREST ECOLOGY AND MANAGEMENT,417,103-109. |
MLA | Lim, Sang-Sun,et al."Soil organic carbon stocks in three Canadian agroforestry systems: From surface organic to deeper mineral soils".FOREST ECOLOGY AND MANAGEMENT 417(2018):103-109. |
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