Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.15218 |
Long‐term nitrogen loading alleviates phosphorus limitation in terrestrial ecosystems | |
Ji Chen; Kees J. van Groenigen; Bruce A. Hungate; Cé; sar Terrer; Jan‐; Willem van Groenigen; Fernando T. Maestre; Samantha C. Ying; Yiqi Luo; Uffe Jø; rgensen; Robert L. Sinsabaugh; Jø; rgen E. Olesen; Lars Elsgaard | |
2020-07-01 | |
发表期刊 | Global Change Biology |
出版年 | 2020 |
英文摘要 | Increased human‐derived nitrogen (N) deposition to terrestrial ecosystems has resulted in widespread phosphorus (P) limitation of net primary productivity. However, it remains unclear if and how N‐induced P limitation varies over time. Soil extracellular phosphatases catalyze the hydrolysis of P from soil organic matter, an important adaptive mechanism for ecosystems to cope with N‐induced P limitation. Here we show, using a meta‐analysis of 140 studies and 668 observations worldwide, that N stimulation of soil phosphatase activity diminishes over time. Whereas short‐term N loading (≤5 years) significantly increased soil phosphatase activity by 28%, long‐term N loading had no significant effect. Nitrogen loading did not affect soil available P and total P content in either short‐ or long‐term studies. Together, these results suggest that N‐induced P limitation in ecosystems is alleviated in the long‐term through the initial stimulation of soil phosphatase activity, thereby securing P supply to support plant growth. Our results suggest that increases in terrestrial carbon uptake due to ongoing anthropogenic N loading may be greater than previously thought. |
领域 | 气候变化 ; 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/281740 |
专题 | 气候变化 资源环境科学 |
推荐引用方式 GB/T 7714 | Ji Chen,Kees J. van Groenigen,Bruce A. Hungate,等. Long‐term nitrogen loading alleviates phosphorus limitation in terrestrial ecosystems[J]. Global Change Biology,2020. |
APA | Ji Chen.,Kees J. van Groenigen.,Bruce A. Hungate.,Cé.,sar Terrer.,...&Lars Elsgaard.(2020).Long‐term nitrogen loading alleviates phosphorus limitation in terrestrial ecosystems.Global Change Biology. |
MLA | Ji Chen,et al."Long‐term nitrogen loading alleviates phosphorus limitation in terrestrial ecosystems".Global Change Biology (2020). |
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