Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/ele.13651 |
Root‐derived inputs are major contributors to soil carbon in temperate forests, but vary by mycorrhizal type | |
Adrienne B. Keller; Edward R. Brzostek; Matthew E. Craig; Joshua B. Fisher; Richard P. Phillips | |
2021-01-25 | |
发表期刊 | Ecology Letters
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出版年 | 2021 |
英文摘要 | Roots promote the formation of slow‐cycling soil carbon (C), yet we have a limited understanding of the magnitude and controls on this flux. We hypothesised arbuscular mycorrhizal (AM)‐ and ectomycorrhizal (ECM)‐associated trees would exhibit differences in root‐derived C accumulation in the soil, and that much of this C would be transferred into mineral‐associated pools. We installed δ13C‐enriched ingrowth cores across mycorrhizal gradients in six Eastern U.S. forests (n = 54 plots). Overall, root‐derived C was 54% greater in AM versus ECM‐dominated plots. This resulted in nearly twice as much root‐derived C in putatively slow‐cycling mineral‐associated pools in AM compared to ECM plots. Given that our estimates of root‐derived inputs were often equal to or greater than leaf litter inputs, our results suggest that variation in root‐derived soil C accumulation due to tree mycorrhizal dominance may be a key control of soil C dynamics in forests. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/313886 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Adrienne B. Keller,Edward R. Brzostek,Matthew E. Craig,等. Root‐derived inputs are major contributors to soil carbon in temperate forests, but vary by mycorrhizal type[J]. Ecology Letters,2021. |
APA | Adrienne B. Keller,Edward R. Brzostek,Matthew E. Craig,Joshua B. Fisher,&Richard P. Phillips.(2021).Root‐derived inputs are major contributors to soil carbon in temperate forests, but vary by mycorrhizal type.Ecology Letters. |
MLA | Adrienne B. Keller,et al."Root‐derived inputs are major contributors to soil carbon in temperate forests, but vary by mycorrhizal type".Ecology Letters (2021). |
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