气候变化领域集成服务门户(CCPortal): Soil greenhouse gas fluxes following conventional selective and reduced-impact logging in a Congo Basin rainforest

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DOI	10.1007/s10533-020-00718-y
	Soil greenhouse gas fluxes following conventional selective and reduced-impact logging in a Congo Basin rainforest
	Tchiofo Lontsi R.; Corre M.D.; Iddris N.A.; Veldkamp E.
发表日期	2020
ISSN	0168-2563
起始页码	153
结束页码	170
卷号	151 期号:2020-02-03
英文摘要	Selective logging is among the main causes of tropical forest degradation, but little is known about its effects on greenhouse gas (GHG) fluxes from highly weathered Ferralsol soils in Africa. We measured soil CO2, N2O, and CH4 fluxes, and their soil controlling factors at two forests that had undergone conventional selective logging and reduced-impact logging in Cameroon. Each logging system had four replicate plots, each included the disturbed strata (road, logging deck, skidding trail, and felling gap) and an undisturbed reference area. Measurements were conducted monthly from September 2016 to October 2017. Annual GHG fluxes ranged from 4.9 to 18.6 Mg CO2–C, from 1.5 to 79 kg N2O–N, and from − 4.3 to 71.1 kg CH4–C ha−1 year−1. Compared to undisturbed areas, soil CO2 emissions were reduced and soil CH4 emissions increased in skidding trails, logging decks and roads (P < 0.01) whereas soil N2O emissions increased in skidding trails (P = 0.03–0.05). The combined disturbed strata had 28% decrease in soil CO2 emissions, 83% increase in soil N2O emissions, and seven times higher soil CH4 emissions compared to undisturbed area (P ≤ 0.01). However, the disturbed strata represented only 4–5% of the area impacted in both logging systems, which reduced considerably the changes in soil GHG fluxes at the landscape level. Across all strata, soil GHG fluxes were regulated by soil bulk density and water-filled pore space, indicating the influence of soil aeration and gas diffusion, and by soil organic carbon and nitrogen, suggesting the control of substrate availability on microbial processes of these GHG. © 2020, The Author(s).
英文关键词	Ferralsols; Selective logging; Soil CH4 fluxes; Soil CO2 emissions; Soil N2O emissions; Tropical forest
语种	英语
来源期刊	Biogeochemistry
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153089
作者单位	Soil Science of Tropical and Subtropical Ecosystems, Faculty of Forest Sciences and Forest Ecology, University of Goettingen, Buesgenweg 2, Goettingen, 37077, Germany; School of Wood, Water and Natural Resources, Faculty of Agronomy and Agricultural Sciences, University of Dschang, P.O. Box 786, Ebolowa, Cameroon
推荐引用方式 GB/T 7714	Tchiofo Lontsi R.,Corre M.D.,Iddris N.A.,et al. Soil greenhouse gas fluxes following conventional selective and reduced-impact logging in a Congo Basin rainforest[J],2020,151(2020-02-03).
APA	Tchiofo Lontsi R.,Corre M.D.,Iddris N.A.,&Veldkamp E..(2020).Soil greenhouse gas fluxes following conventional selective and reduced-impact logging in a Congo Basin rainforest.Biogeochemistry,151(2020-02-03).
MLA	Tchiofo Lontsi R.,et al."Soil greenhouse gas fluxes following conventional selective and reduced-impact logging in a Congo Basin rainforest".Biogeochemistry 151.2020-02-03(2020).