Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14027 |
Disentangling the long-term effects of disturbance on soil biogeochemistry in a wet tropical forest ecosystem | |
del Arroyo, Omar Gutierrez; Silver, Whendee L. | |
2018-04-01 | |
发表期刊 | GLOBAL CHANGE BIOLOGY |
ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2018 |
卷号 | 24期号:4页码:1673-1684 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Climate change is increasing the intensity of severe tropical storms and cyclones (also referred to as hurricanes or typhoons), with major implications for tropical forest structure and function. These changes in disturbance regime are likely to play an important role in regulating ecosystem carbon (C) and nutrient dynamics in tropical and subtropical forests. Canopy opening and debris deposition resulting from severe storms have complex and interacting effects on ecosystem biogeochemistry. Disentangling these complex effects will be critical to better understand the long-term implications of climate change on ecosystem C and nutrient dynamics. In this study, we used a well-replicated, long-term (10years) canopy and debris manipulation experiment in a wet tropical forest to determine the separate and combined effects of canopy opening and debris deposition on soil C and nutrients throughout the soil profile (1m). Debris deposition alone resulted in higher soil C and N concentrations, both at the surface (0-10cm) and at depth (50-80cm). Concentrations of NaOH-organic P also increased significantly in the debris deposition only treatment (20-90cm depth), as did NaOH-total P (20-50cm depth). Canopy opening, both with and without debris deposition, significantly increased NaOH-inorganic P concentrations from 70 to 90cm depth. Soil iron concentrations were a strong predictor of both C and P patterns throughout the soil profile. Our results demonstrate that both surface- and subsoils have the potential to significantly increase C and nutrient storage a decade after the sudden deposition of disturbance-related organic debris. Our results also show that these effects may be partially offset by rapid decomposition and decreases in litterfall associated with canopy opening. The significant effects of debris deposition on soil C and nutrient concentrations at depth (>50cm), suggest that deep soils are more dynamic than previously believed, and can serve as sinks of C and nutrients derived from disturbance-induced pulses of organic matter inputs. |
英文关键词 | carbon sequestration disturbance hurricane phosphorus soil depth soil nutrients tropical forest |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000426504400020 |
WOS关键词 | LUQUILLO EXPERIMENTAL FOREST ; ORGANIC-MATTER DYNAMICS ; FINE-ROOT DYNAMICS ; SUBTROPICAL WET ; DEBRIS DEPOSITION ; HURRICANE HUGO ; WOODY DEBRIS ; LITTER DECOMPOSITION ; SPATIAL-PATTERNS ; CARBON TURNOVER |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
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/17208 |
专题 | 气候变化 资源环境科学 |
作者单位 | Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA |
推荐引用方式 GB/T 7714 | del Arroyo, Omar Gutierrez,Silver, Whendee L.. Disentangling the long-term effects of disturbance on soil biogeochemistry in a wet tropical forest ecosystem[J]. GLOBAL CHANGE BIOLOGY,2018,24(4):1673-1684. |
APA | del Arroyo, Omar Gutierrez,&Silver, Whendee L..(2018).Disentangling the long-term effects of disturbance on soil biogeochemistry in a wet tropical forest ecosystem.GLOBAL CHANGE BIOLOGY,24(4),1673-1684. |
MLA | del Arroyo, Omar Gutierrez,et al."Disentangling the long-term effects of disturbance on soil biogeochemistry in a wet tropical forest ecosystem".GLOBAL CHANGE BIOLOGY 24.4(2018):1673-1684. |
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