Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2018.05.059 |
Promoting revegetation and soil carbon sequestration on decommissioned forest roads in Colorado, USA: A comparative assessment of organic soil amendments | |
Ramlow, M.1,2,3; Rhoades, C. C.4; Cotrufo, M. F.1,2 | |
2018-11-01 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2018 |
卷号 | 427页码:230-241 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Forest roads are commonly decommissioned and revegetated to decrease erosion, prevent weed encroachment, manage recreation and improve overall watershed condition on federal lands, but may also provide a complementary opportunity to sequester carbon (C) in soils. Soils on decommissioned roads are typically compacted with limited capacity for water retention, decreased mineral nitrogen (N) availability and low organic matter content, impairing revegetation and soil C sequestration efforts. We evaluated the effects of an organic fertilizer, wood strand mulch and a woody biochar on soil physical, chemical and biological processes to improve revegetation and C sequestration on decompacted forest roads. We monitored plant and soil responses to the treatments and their combinations over three growing seasons on four decommissioned road segments in northern Colorado. The organic fertilizer increased plant available mineral N for the first year of the study and resulted in a 21% increase in total plant cover and 67% increase in root biomass. The wood strand mulch increased total plant cover and root biomass to a similar extent, but had no effect on soil water content or mineral N availability. Instead, mulch stimulated soil microbial respiration and increased soil C content, two of the best predictors of plant cover and biomass. The woody biochar increased soil water content by 26% and elevated mineral N availability throughout the study, but did not improve plant cover, above- or belowground biomass. Mulch, biochar and their combined treatments sequestered C, but through distinct pathways. Microbial processing of wood strand mulch added C to the mineral soil fraction, whereas biochar added C directly to the coarse particulate fraction with no effect on mineral soil C or soil respiration. Restoration practitioners can utilize these results to inform management decisions and guide further research on different rates and combinations of organic amendments to revegetate and sequester C on decommissioned forest roads. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000440775600026 |
WOS关键词 | COARSE WOODY DEBRIS ; BLACK CARBON ; NITROGEN MINERALIZATION ; SEDIMENT PRODUCTION ; BIOCHAR APPLICATION ; PLANT-COMMUNITIES ; ROCKY-MOUNTAINS ; MATTER ; AVAILABILITY ; RESTORATION |
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/22109 |
专题 | 气候变化 |
作者单位 | 1.Colorado State Univ, Dept Soil & Crop Sci, Ft Collins, CO 80523 USA; 2.Colorado State Univ, Nat Resource Ecol Lab, Ft Collins, CO 80523 USA; 3.Colorado State Univ, Grad Degree Program Ecol, Ft Collins, CO 80523 USA; 4.US Forest Serv, USDA, Rocky Mt Res Stn, Ft Collins, CO 80526 USA |
推荐引用方式 GB/T 7714 | Ramlow, M.,Rhoades, C. C.,Cotrufo, M. F.. Promoting revegetation and soil carbon sequestration on decommissioned forest roads in Colorado, USA: A comparative assessment of organic soil amendments[J]. FOREST ECOLOGY AND MANAGEMENT,2018,427:230-241. |
APA | Ramlow, M.,Rhoades, C. C.,&Cotrufo, M. F..(2018).Promoting revegetation and soil carbon sequestration on decommissioned forest roads in Colorado, USA: A comparative assessment of organic soil amendments.FOREST ECOLOGY AND MANAGEMENT,427,230-241. |
MLA | Ramlow, M.,et al."Promoting revegetation and soil carbon sequestration on decommissioned forest roads in Colorado, USA: A comparative assessment of organic soil amendments".FOREST ECOLOGY AND MANAGEMENT 427(2018):230-241. |
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