Enhanced deposition of nitrate alters microbial cycling of n in a subtropical forest soil
文献类型：期刊论文
| 作者 | Gao, Wenlong1,2; Kou, Liang1,2; Zhang, Jinbo3; Mueller, Christoph4,5,6; Wang, Huiming1; Yang, Hao1; Li, Shenggong1,2 |
| 刊名 | Biology and fertility of soils
 |
| 出版日期 | 2016-10-01 |
| 卷号 | 52期号:7页码:977-986 |
| 关键词 | N deposition Gross n transformations N-15 tracing Model Subtropical forest |
| ISSN号 | 0178-2762 |
| DOI | 10.1007/s00374-016-1134-4 |
| 通讯作者 | Li, shenggong(lisg@igsnrr.ac.cn) |
| 英文摘要 | In china, atmospheric deposition of no3 (-) is increasing rapidly. however, information on how microbial n cycling in forest soils may respond to increasing deposition of no3 (-) is currently lacking. determination of process- and pool-specific n transformation rates can provide additional insights into the controls on the production and consumption of inorganic n, and microbial function. here, we present results from a laboratory n-15 tracing study with a soil (0-10 cm) from a subtropical forest receiving fertilization for more than 2.5 years at a rate of 0, 40, and 120 kg no3 (-)-n ha(-1) year(-1). the process- and pool-specific n transformation rates were quantified with a n-15 tracing model. the directions of changes in microbial mineralization of labile and recalcitrant organic n were opposite under increased no3 (-) additions. microbial mineralization of labile organic n first decreased, then increased, while microbial mineralization of recalcitrant organic n showed the opposite in response to increasing no3 (-) additions. ammonium immobilization into labile and recalcitrant organic n was not changed by increased no3 (-) additions. nitrate additions did not affect heterotrophic and gross nitrification, but stimulated autotrophic nitrification. nitrate immobilization decreased under increased no3 (-) additions, with a greater reduction under low no3 (-) addition treatment compared to high no3 (-) addition treatment. overall, our results reflect a contrasting change in microbial mineralization of liable and recalcitrant organic n under increased no3 (-) additions, and a contrasting effect of low and high no3 (-) additions on microbial mineralization of liable and recalcitrant organic n. it also has implications for our understanding of no3 (-) deposition-induced nonlinear changes in net production and loss of no3 (-) in subtropical/tropical forest soils. |
| WOS关键词 | NITROGEN DEPOSITION ; HETEROTROPHIC NITRIFICATION ; TERRESTRIAL ECOSYSTEMS ; RETENTION PROCESSES ; ENZYME-ACTIVITIES ; TROPICAL FOREST ; GRASSLAND SOIL ; BOREAL FOREST ; CARBON ; PLANT |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000384420200007 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2375052 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Li, Shenggong |
| 作者单位 | 1.Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Nanjing Normal Univ, Sch Geog Sci, Nanjing 210047, Jiangsu, Peoples R China 4.Univ Giessen, Dept Plant Ecol, Heinrich Buff Ring 26, D-35392 Giessen, Germany 5.Univ Coll Dublin, Sch Biol, Belfield, Ireland 6.Univ Coll Dublin, Environm Sci & Earth Inst, Belfield, Ireland |
| 推荐引用方式 GB/T 7714 | Gao, Wenlong,Kou, Liang,Zhang, Jinbo,et al. Enhanced deposition of nitrate alters microbial cycling of n in a subtropical forest soil[J]. Biology and fertility of soils,2016,52(7):977-986. |
| APA | Gao, Wenlong.,Kou, Liang.,Zhang, Jinbo.,Mueller, Christoph.,Wang, Huiming.,...&Li, Shenggong.(2016).Enhanced deposition of nitrate alters microbial cycling of n in a subtropical forest soil.Biology and fertility of soils,52(7),977-986. |
| MLA | Gao, Wenlong,et al."Enhanced deposition of nitrate alters microbial cycling of n in a subtropical forest soil".Biology and fertility of soils 52.7(2016):977-986. |
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来源：中国科学院大学
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