Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41561-019-0299-5 |
Negligible cycling of terrestrial carbon in many lakes of the arid circumpolar landscape | |
Bogard, Matthew J.1; Kuhn, Catherine D.1; Johnston, Sarah Ellen2; Striegl, Robert G.3; Holtgrieve, Gordon W.4; Dornblaser, Mark M.3; Spencer, Robert G. M.2; Wickland, Kimberly P.3; Butman, David E.1,5 | |
2019-03-01 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2019 |
卷号 | 12期号:3页码:180-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | High-latitude environments store nearly half of the planet's below-ground organic carbon (OC), mostly in perennially frozen permafrost soils. Climatic changes drive increased export of terrestrial OC into many aquatic networks, yet the role that circumpolar lakes play in mineralizing this carbon is unclear. Here we directly evaluate ecosystem-scale OC cycling for lakes of interior Alaska. This arid, low-relief lake landscape is representative of over a quarter of total northern circumpolar lake area, but is greatly under-represented in current studies. Contrary to projections based on work in other regions, the studied lakes had a negligible role in mineralizing terrestrial carbon; they received little OC from ancient permafrost soils, and had small net contribution to the watershed carbon balance. Instead, most lakes recycled large quantities of internally derived carbon fixed from atmospheric CO2, underscoring their importance as critical sites for material and energy provision to regional food webs. Our findings deviate from the prevailing paradigm that northern lakes are hotspots of terrestrial OC processing. The shallow and hydrologically disconnected nature of lakes in many arid circumpolar landscapes isolates them from terrestrial carbon processing under current climatic conditions. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000460103000011 |
WOS关键词 | DISSOLVED ORGANIC-MATTER ; ISOTOPIC FRACTIONATION ; ECOSYSTEM METABOLISM ; CHEMICAL LIMNOLOGY ; PERMAFROST CARBON ; STABLE-ISOTOPES ; CLIMATE-CHANGE ; BOREAL LAKES ; GAS TRANSFER ; WIND-SPEED |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/35040 |
专题 | 地球科学 气候变化 |
作者单位 | 1.Univ Washington, Sch Environm & Forest Sci, Seattle, WA 98195 USA; 2.Florida State Univ, Dept Earth Ocean & Atmospher Sci, Tallahassee, FL 32306 USA; 3.US Geol Survey, Boulder, CO USA; 4.Univ Washington, Sch Aquat & Fishery Sci, Seattle, WA 98195 USA; 5.Univ Washington, Sch Engn & Environm Sci, Seattle, WA 98195 USA |
推荐引用方式 GB/T 7714 | Bogard, Matthew J.,Kuhn, Catherine D.,Johnston, Sarah Ellen,et al. Negligible cycling of terrestrial carbon in many lakes of the arid circumpolar landscape[J]. NATURE GEOSCIENCE,2019,12(3):180-+. |
APA | Bogard, Matthew J..,Kuhn, Catherine D..,Johnston, Sarah Ellen.,Striegl, Robert G..,Holtgrieve, Gordon W..,...&Butman, David E..(2019).Negligible cycling of terrestrial carbon in many lakes of the arid circumpolar landscape.NATURE GEOSCIENCE,12(3),180-+. |
MLA | Bogard, Matthew J.,et al."Negligible cycling of terrestrial carbon in many lakes of the arid circumpolar landscape".NATURE GEOSCIENCE 12.3(2019):180-+. |
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