干旱区生态环境知识资源中心(Arid): From leaf traits to agroecosystem functioning: effects of changing resource use strategy during silphium domestication on litter quality and decomposition rate

Arid

DOI	10.1007/s11104-021-05224-0
	From leaf traits to agroecosystem functioning: effects of changing resource use strategy during silphium domestication on litter quality and decomposition rate
	Gonzalez-Paleo, Luciana; Ravetta, Damian; Van Tassel, David
通讯作者	Gonzalez-Paleo, L (corresponding author)，Consejo Nacl Invest Cient & Tecn, Museo Egidio Feruglio, Fontana 140, Trelew, Chubut, Argentina.
来源期刊	PLANT AND SOIL
ISSN	0032-079X
EISSN	1573-5036
出版年	2022
卷号	471 期号:1-2 页码:655-667
英文摘要	Aims We asked if structural and chemical changes in leaf traits, brought about by early domestication in perennial Silphium integrifolium Michx. (Asteraceae), have influenced litter quantity and quality, and decomposition rates. This process is critical to determine how an ecosystem recycles nutrients, renews soil fertility and sequesters C in the soil. Methods We compared in a field experiment green and senescent leaves traits of Improved and Wild accessions of Silphium. We performed a laboratory decomposition experiment to determine the decomposition rate, and the change in litter quality over time. Results Improved accessions of Silphium produced almost two times more litter than the Wild, which should, in turn, contribute to a higher C input to the soil; however, this litter decomposed faster than that of wild types, and thus had shorter C residence time. Slower decay of litter has been recommended for C sequestration in erodible lands and semi-arid zones, also favoring nutrient retention and slower release of nutrients. The key driver of the decomposition process was resin content and not the usual chemical predictors of litter quality (i.e. N content and C/N ratio). Wild-type litter had thicker leaves with higher resin content, and lower C:N ratio. Conclusions Domestication changed litter quality affecting the rate of decomposition and potentially C cycling in the agroecosystem. Improved accessions contributed with more C input litter but with lower quality. The lower resin content of the Improved accessions reduced the litter residence time of C due to faster rate of decomposition.
英文关键词	Ecological intensification Perennial domestication Decomposition rate Litter quality Resin content
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000741601000003
WOS关键词	SOIL ORGANIC-MATTER ; SECONDARY METABOLITES ; PLANT TRAITS ; NITROGEN ; CARBON ; WILD ; STABILIZATION ; RESORPTION ; EFFICIENCY ; DYNAMICS
WOS类目	Agronomy ; Plant Sciences ; Soil Science
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376576
作者单位	[Gonzalez-Paleo, Luciana; Ravetta, Damian] Consejo Nacl Invest Cient & Tecn, Museo Egidio Feruglio, Fontana 140, Trelew, Chubut, Argentina; [Van Tassel, David] Land Inst, 2440 E Water Well Rd, Salina, KS 67448 USA
推荐引用方式 GB/T 7714	Gonzalez-Paleo, Luciana,Ravetta, Damian,Van Tassel, David. From leaf traits to agroecosystem functioning: effects of changing resource use strategy during silphium domestication on litter quality and decomposition rate[J],2022,471(1-2):655-667.
APA	Gonzalez-Paleo, Luciana,Ravetta, Damian,&Van Tassel, David.(2022).From leaf traits to agroecosystem functioning: effects of changing resource use strategy during silphium domestication on litter quality and decomposition rate.PLANT AND SOIL,471(1-2),655-667.
MLA	Gonzalez-Paleo, Luciana,et al."From leaf traits to agroecosystem functioning: effects of changing resource use strategy during silphium domestication on litter quality and decomposition rate".PLANT AND SOIL 471.1-2(2022):655-667.