| DOI: | 10.1111/ele.13591
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| 论文题名: | Grassland ecosystem recovery after soil disturbance depends on nutrient supply rate |
| 作者: | Seabloom E.W.; Borer E.T.; Tilman D.
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| 刊名: | Ecology Letters
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| ISSN: | 1461023X
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| 出版年: | 2020
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| 卷: | 23, 期:12 | | 起始页码: | 1756
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| 结束页码: | 1765
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| 语种: | 英语
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| 中文关键词: | Biodiversity
; community ecology
; ecosystems
; grasslands
; recovery
; succession
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| 英文关键词: | nitrogen
; biodiversity
; ecosystem
; grassland
; soil
; Biodiversity
; Ecosystem
; Grassland
; Nitrogen
; Nutrients
; Soil
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| 英文摘要: | Human disturbances alter the functioning and biodiversity of many ecosystems. These ecosystems may return to their pre-disturbance state after disturbance ceases; however, humans have altered the environment in ways that may change the rate or direction of this recovery. For example, human activities have increased supplies of biologically limiting nutrients, such as nitrogen (N) and phosphorus (P), which can reduce grassland diversity and increase productivity. We tracked the recovery of a grassland for two decades following an intensive agricultural disturbance under ambient and elevated nutrient conditions. Productivity returned to pre-disturbance levels quickly under ambient nutrient conditions, but nutrient addition slowed this recovery. In contrast, the effects of disturbance on diversity remained hidden for 15 years, at which point diversity began to increase in unfertilised plots. This work demonstrates that enrichment of terrestrial ecosystems by humans may alter the recovery of ecosystems and that disturbance effects may remain hidden for many years. © 2020 John Wiley & Sons Ltd. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/166716
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| Appears in Collections: | 气候变化与战略
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作者单位: | Department of Ecology, Evolution, and Behavior, University of MN, St. Paul, MN 55108, United States
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| Recommended Citation: | |
Seabloom E.W.,Borer E.T.,Tilman D.. Grassland ecosystem recovery after soil disturbance depends on nutrient supply rate[J]. Ecology Letters,2020-01-01,23(12)
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