气候变化领域集成服务门户(CCPortal): Persistent soil carbon enhanced in Mollisols by well- managed grasslands but not annual grain or dairy forage cropping systems

CCPortal

DOI	10.1073/pnas.2118931119
	Persistent soil carbon enhanced in Mollisols by well- managed grasslands but not annual grain or dairy forage cropping systems
	Rui, Yichao; Jackson, Randall D.; Cotrufo, M. Francesca; Sanford, Gregg R.; Spiesman, Brian J.; Deiss, Leonardo; Culman, Steven W.; Liang, Chao; Ruark, Matthew D.
发表日期	2022
ISSN	0027-8424
EISSN	1091-6490
卷号	119 期号:7
英文摘要	Intensive crop production on grassland-derived Mollisols has liberated massive amounts of carbon (C) to the atmosphere. Whether minimizing soil disturbance, diversifying crop rotations, or re-establishing perennial grasslands and integrating livestock can slow or reverse this trend remains highly uncertain. We investigated how these management practices affected soil organic carbon (SOC) accrual and distribution between particulate (POM) and mineral-associated (MAOM) organic matter in a 29-y-old field experiment in the North Central United States and assessed how soil microbial traits were related to these changes. Compared to conventional continuous maize monocropping with annual tillage, systems with reduced tillage, diversified crop rotations with cover crops and legumes, or manure addition did not increase total SOC storage or MAOM-C, whereas perennial pastures managed with rotational grazing accumulated more SOC and MAOM-C (18 to 29% higher) than all annual cropping systems after 29 y of management. These results align with a meta-analysis of data from published studies comparing the efficacy of soil health management practices in annual cropping systems on Mollisols worldwide. Incorporating legumes and manure into annual cropping systems enhanced POM-C, microbial biomass, and microbial C-use efficiency but did not significantly increase microbial necromass accumulation, MAOM-C, or total SOC storage. Diverse, rotationally grazed pasture management has the potential to increase persistent soil C on Mollisols, highlighting the key role of well-managed grasslands in climate-smart agriculture.
英文关键词	soil organic carbon; agricultural practices; Mollisols; soil microbes; managed grasslands
语种	英语
WOS研究方向	Multidisciplinary Sciences
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000766919700024
来源期刊	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/281021
作者单位	University of Wisconsin System; University of Wisconsin Madison; University of Wisconsin System; University of Wisconsin Madison; Colorado State University; Kansas State University; University System of Ohio; Ohio State University; Chinese Academy of Sciences; Shenyang Institute of Applied Ecology, CAS
推荐引用方式 GB/T 7714	Rui, Yichao,Jackson, Randall D.,Cotrufo, M. Francesca,et al. Persistent soil carbon enhanced in Mollisols by well- managed grasslands but not annual grain or dairy forage cropping systems[J],2022,119(7).
APA	Rui, Yichao.,Jackson, Randall D..,Cotrufo, M. Francesca.,Sanford, Gregg R..,Spiesman, Brian J..,...&Ruark, Matthew D..(2022).Persistent soil carbon enhanced in Mollisols by well- managed grasslands but not annual grain or dairy forage cropping systems.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,119(7).
MLA	Rui, Yichao,et al."Persistent soil carbon enhanced in Mollisols by well- managed grasslands but not annual grain or dairy forage cropping systems".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 119.7(2022).