干旱区生态环境知识资源中心(Arid): Ecosystem function associated with soil organic carbon declines with tropical dry forest degradation

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DOI	10.1002/ldr.5047
	Ecosystem function associated with soil organic carbon declines with tropical dry forest degradation
	de Sosa, Laura L.; Carmona, Inmaculada; Panettieri, Marco; Griffith, Daniel M.; Espinosa, Carlos I.; Jara-Guerrero, Andrea; Plaza, Cesar; Madejon, Engracia
通讯作者	de Sosa, LL
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
出版年	2024
卷号	35 期号:6 页码:2109-2121
英文摘要	Forest degradation is increasingly recognized as a major threat to global biodiversity and the multiple ecosystem services forests provide. This study examined the impacts of forest degradation on soil quality and function in a seasonally dry tropical forest (SDTF) of Ecuador. Previous studies of SDTFs have focused on the impacts of land-use conversion on soils, while this study assessed the less visible but pervasive effects of degradation. We compared soil physical-chemical properties, enzymatic activity, particulate organic carbon (POC) and mineral-associated organic carbon (MAOC) along a gradient of SDTF degradation in both the dry and rainy season. Our findings showed a consistent and steady reduction in soil quality (total C and N) and function (dehydrogenase and beta-glucosidase activity) that paralleled the loss of vegetative structure and diversity along the degradation gradient. Soil physical-chemical properties were less variable and enzymatic activity was generally higher in the dry season compared to the rainy season. We also showed for the first time a significant and uniform decrease in POC and MAOC with degradation in SDTF. The relative proportion of these two components was constant along the gradient except in the most degraded state (arid land), where POC was higher in proportion to MAOC, suggesting that extreme forest degradation may cause this ecosystem to cross a functional tipping point. These findings address an important knowledge gap for SDTFs by showing a consistent loss of soil quality and functionality with degradation, and suggest that extreme degradation can result in an alternate state with compromised resilience.
英文关键词	enzyme activity forest degradation MAOC POC seasonally dry tropical forest soil function
类型	Article
语种	英语
开放获取类型	Green Submitted, hybrid
收录类别	SCI-E
WOS记录号	WOS:001182002400001
WOS关键词	PARTICLE-SIZE FRACTIONS ; DIVERSITY ; DISTURBANCE ; NITROGEN ; BIOMASS ; MATTER ; PLANT ; BIODIVERSITY ; COMMUNITIES ; DYNAMICS
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/404844
推荐引用方式 GB/T 7714	de Sosa, Laura L.,Carmona, Inmaculada,Panettieri, Marco,et al. Ecosystem function associated with soil organic carbon declines with tropical dry forest degradation[J],2024,35(6):2109-2121.
APA	de Sosa, Laura L..,Carmona, Inmaculada.,Panettieri, Marco.,Griffith, Daniel M..,Espinosa, Carlos I..,...&Madejon, Engracia.(2024).Ecosystem function associated with soil organic carbon declines with tropical dry forest degradation.LAND DEGRADATION & DEVELOPMENT,35(6),2109-2121.
MLA	de Sosa, Laura L.,et al."Ecosystem function associated with soil organic carbon declines with tropical dry forest degradation".LAND DEGRADATION & DEVELOPMENT 35.6(2024):2109-2121.