Decreased ultraviolet radiation and decomposer biodiversity inhibit litter decomposition under continuous nitrogen inputs
文献类型：期刊论文
| 作者 | Wei, Bin4; Zhang, Dianye; Kou, Dan1; Yang, Guibiao; Liu, Futing3; Peng, Yunfeng; Yang, Yuanhe4
|
| 刊名 | FUNCTIONAL ECOLOGY
 |
| 出版日期 | 2022 |
| 卷号 | 36期号:4页码:998-1009 |
| 关键词 | carbon cycle litter microbial decomposition nitrogen deposition photodegradation soil bacterial diversity |
| ISSN号 | 0269-8463 |
| DOI | 10.1111/1365-2435.14015 |
| 文献子类 | Article |
| 英文摘要 | 1. Atmospheric nitrogen (N) deposition has altered biogeochemical cycles and ecosystem functioning. As a key process involved in carbon and nutrient cycles in terrestrial ecosystems, litter decomposition is sensitive to external N inputs. However, it remains unclear how the interactions of ultraviolet (UV) radiation, soil biodiversity (bacteria, fungi and invertebrates) and conventional drivers (e.g. litter chemistry and microbial activities) regulate the responses of litter decomposition to continuous N inputs. 2. Based on a multilevel N addition experimental platform, we conducted a 2-year litter decomposition experiment to examine the relative importance of N-induced changes in biotic and abiotic factors in mediating changes in the decomposition rates of four litter types (three representative species and their mixture) along an experimental N gradient in a Tibetan alpine steppe. 3. Our results showed that litter decomposition rates exhibited a consistent decrease in response to N enrichment among all species and their mixture. The slowed decomposition rates with increasing N addition were associated with N-induced reductions in UV radiation and soil bacterial diversity. An additional UV radiation manipulative experiment further confirmed that photodegradation had strong effects on plant litter decomposition at our study site. 4. These results demonstrated that N-induced declines in UV radiation and soil bacterial diversity inhibited litter decomposition, challenging the traditional view that changes in litter chemistry and microbial activities determine the responses of litter decomposition to external N inputs. Read the free Plain Language Summary for this article on the Journal blog. |
| 学科主题 | Ecology |
| 出版地 | HOBOKEN |
| 电子版国际标准刊号 | 1365-2435 |
| WOS关键词 | NUTRIENT DYNAMICS ; ENZYME-ACTIVITY ; UV EXPOSURE ; LEAF-LITTER ; GRASSLAND ; DIVERSITY ; PHOTODEGRADATION ; DEPOSITION ; ADDITIONS ; POSITION |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000758057900001 |
| 出版者 | WILEY |
| 资助机构 | National Natural Science Foundation of China [31825006, 31988102, 91837312] ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program [2019QZKK0106] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/28699]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Chinese Acad Forestry, Res Inst Nat Protected Area, Beijing, Peoples R China 3.Univ Eastern Finland, Biogeochem Res Grp, Dept Biol & Environm Sci, Kuopio, Finland 4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wei, Bin,Zhang, Dianye,Kou, Dan,et al. Decreased ultraviolet radiation and decomposer biodiversity inhibit litter decomposition under continuous nitrogen inputs[J]. FUNCTIONAL ECOLOGY,2022,36(4):998-1009. |
| APA | Wei, Bin.,Zhang, Dianye.,Kou, Dan.,Yang, Guibiao.,Liu, Futing.,...&Yang, Yuanhe.(2022).Decreased ultraviolet radiation and decomposer biodiversity inhibit litter decomposition under continuous nitrogen inputs.FUNCTIONAL ECOLOGY,36(4),998-1009. |
| MLA | Wei, Bin,et al."Decreased ultraviolet radiation and decomposer biodiversity inhibit litter decomposition under continuous nitrogen inputs".FUNCTIONAL ECOLOGY 36.4(2022):998-1009. |
入库方式： OAI收割
来源：植物研究所
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