气候变化领域集成服务门户(CCPortal): Soil organic matter pools under management intensification of loblolly pine plantations

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DOI	10.1016/j.foreco.2019.05.056
	Soil organic matter pools under management intensification of loblolly pine plantations
	Mosier S.; Paustian K.; Davies C.; Kane M.; Cotrufo M.F.
发表日期	2019
ISSN	0378-1127
起始页码	60
结束页码	66
卷号	447
英文摘要	Early thinning of loblolly pine plantations can potentially deliver sustainable feedstocks for biofuel/bioenergy. However, the management intensification for increased productivity and the removal of additional biomass from these plantations could reduce carbon (C)inputs belowground and therefore reduce overall ecosystem C storage. Increased fertilization could also affect C stocks, and their relative distribution between soil organic matter (SOM)fractions. We analyzed soil C stocks as a function of soil type and different pine plantation management systems across the Western Gulf region of the United States. Additionally, we analyzed SOM fractions with inherently different stabilization mechanisms and potential C persistence. We found no significant differences in bulk soil C stocks across management intensities or soil types. The early thinning treatment had no effect on the C distribution across each soil organic matter fraction. However, proportionally more C was found in mineral-associated organic matter and less in particulate organic matter in the more intensive management regime treatment, possibly due to higher below ground nutrient inputs and enhanced microbial activity. Our results suggest that management intensification to support biofuel production from loblolly pine plantations will not affect soil C stocks, but may increase their persistence. This study demonstrates that, from a soil C perspective, early thinning of intensively managed loblolly pine plantations has potential as a sustainable biofuel feedstock. © 2019
英文关键词	Loblolly pine plantations; Soil carbon; Soil organic matter fractions
语种	英语
scopus关键词	Biofuels; Biogeochemistry; Biological materials; Feedstocks; Organic carbon; Soils; Increased productivity; Intensive management; Loblolly pine plantations; Particulate organic matters; Soil carbon; Soil organic matter pools; Soil organic matters; Stabilization mechanisms; Forestry; agricultural intensification; biofuel; biomass; coniferous tree; particulate organic matter; soil carbon; soil organic matter; soil stabilization; soil type; Forestry; Management; Organic Matter; Pinus Taeda; Plantations; Soil; Thinning; United States; Pinus taeda
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/155913
作者单位	Colorado State University, Department of Soil and Crop Sciences, Fort Collins, CO 80523, United States; Colorado State University, Natural Resource Ecology Laboratory, Fort Collins, CO 80523, United States; Shell Technology Center, Houston, TX 77082, United States; Rice University, Earth, Environmental and Planetary Sciences, Houston, TX 77005, United States; University of Georgia, Warnell School of Forestry & Natural Resources, Athens, GA 30602, United States
推荐引用方式 GB/T 7714	Mosier S.,Paustian K.,Davies C.,et al. Soil organic matter pools under management intensification of loblolly pine plantations[J],2019,447.
APA	Mosier S.,Paustian K.,Davies C.,Kane M.,&Cotrufo M.F..(2019).Soil organic matter pools under management intensification of loblolly pine plantations.Forest Ecology and Management,447.
MLA	Mosier S.,et al."Soil organic matter pools under management intensification of loblolly pine plantations".Forest Ecology and Management 447(2019).