气候变化领域集成服务门户(CCPortal): Plant biodiversity and the regeneration of soil fertility

CCPortal

DOI	10.1073/pnas.2111321118
	Plant biodiversity and the regeneration of soil fertility
	Furey G.N.; Tilman D.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:49
英文摘要	Fertile soils have been an essential resource for humanity for 10,000 y, but the ecological mechanisms involved in the creation and restoration of fertile soils, and especially the role of plant diversity, are poorly understood. Here we use results of a long-term, unfertilized plant biodiversity experiment to determine whether biodiversity, especially plant functional biodiversity, impacted the regeneration of fertility on a degraded sandy soil. After 23 y, plots containing 16 perennial grassland plant species had, relative to monocultures of these same species, ∼30 to 90% greater increases in soil nitrogen, potassium, calcium, magnesium, cation exchange capacity, and carbon and had ∼150 to 370% greater amounts of N, K, Ca, and Mg in plant biomass. Our results suggest that biodiversity, likely in combination with the increased plant productivity caused by higher biodiversity, led to greater soil fertility. Moreover, plots with high plant functional diversity, those containing grasses, legumes, and forbs, accumulated significantly greater N, K, Ca, and Mg in the total nutrient pool (plant biomass and soil) than did plots containing just one of these three functional groups. Plant species in these functional groups had trade-offs between their tissue N content, tissue K content, and root mass, suggesting why species from all three functional groups were essential for regenerating soil fertility. Our findings suggest that efforts to regenerate soil C stores and soil fertility may be aided by creative uses of plant diversity. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Biodiversity; Carbon storage; Soil fertility; Soil restoration; Trait trade-offs
语种	英语
scopus关键词	carbon; nitrogen; potassium; biodiversity; biomass; chemistry; drug effect; ecosystem; ecosystem restoration; environmental protection; Fabaceae; fertility; grassland; growth, development and aging; metabolism; microbiology; plant; plant development; Poaceae; procedures; soil; Biodiversity; Biomass; Carbon; Conservation of Natural Resources; Ecosystem; Environmental Restoration and Remediation; Fabaceae; Fertility; Grassland; Nitrogen; Plant Development; Plants; Poaceae; Potassium; Soil; Soil Microbiology
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/250950
作者单位	College of Biological Science, University of Minnesota, St. Paul, MN 55108, United States; Bren School of Environmental Science and Management, University of California, Santa Barbara, CA 93117, United States
推荐引用方式 GB/T 7714	Furey G.N.,Tilman D.. Plant biodiversity and the regeneration of soil fertility[J],2021,118(49).
APA	Furey G.N.,&Tilman D..(2021).Plant biodiversity and the regeneration of soil fertility.Proceedings of the National Academy of Sciences of the United States of America,118(49).
MLA	Furey G.N.,et al."Plant biodiversity and the regeneration of soil fertility".Proceedings of the National Academy of Sciences of the United States of America 118.49(2021).