Accumulation of nitrogen and microbial residues during 2000 years of rice paddy and non-paddy soil development in the Yangtze River Delta, China
文献类型：期刊论文
| 作者 | Roth, Philipp J.1; Lehndorff, Eva1; Cao, Zhi H.2; Zhuang, Shunyao2; Bannert, Andrea3; Wissing, Livia4; Schloter, Michael3,5; Koegel-Knabner, Ingrid4; Amelung, Wulf1 |
| 刊名 | GLOBAL CHANGE BIOLOGY
 |
| 出版日期 | 2011-11-01 |
| 卷号 | 17期号:11页码:3405-3417 |
| 关键词 | amino sugars cultivation chronosequence microbial biomass nitrogen accumulation paddy soil |
| ISSN号 | 1354-1013 |
| DOI | 10.1111/j.1365-2486.2011.02500.x |
| 通讯作者 | Roth, Philipp J.(proth@uni-bonn.de) |
| 英文摘要 | Lowland rice paddy soils may accumulate significant amounts of organic matter. Our aim was to investigate the role of prolonged paddy management on the nitrogen (N) status of the soils, and to elucidate the contribution of bacteria and fungi to long-term N accumulation processes. For this purpose, we sampled a chronosequence of 0-2000 years of rice cropping with adjacent non-paddy systems in the Bay of Hangzhou, China. The samples were analyzed for bulk density, total, mineral and microbial N (N(mic)), and amino sugars as markers for microbial residues. The results showed that during the first 100 years of land embankment, both paddy and non-paddy soils accumulated N at a rate of up to 61 and 77 kg ha(-1) per annum, reaching steady-state conditions after 110-172 years, respectively. Final N stocks in paddy fields exceeded those of the non-paddies by a factor of 1.3. The contribution of amino sugars to total N increased to a maximum of 34 g N kg(-1) N in both land-use systems, highlighting a significant accumulation of N in microbial residues of the surface soils. Correspondingly, the ratio of N(mic) to microbial residue-N decreased to a constant value. In the paddy subsoils, we found that bacterial residues particularly contributed to the pool of microbial residue-N. Nevertheless, the absolute contents of amino sugars in paddy subsoils decreased during the last 1700 years of the chronosequence. We conclude that under paddy cultivation, soil microorganisms may accumulate parts of this N in their residues despite low overall N availability. However, this N accumulation is limited to initial stages of paddy soil development and restricted to the surface horizons, thus challenging its sustainability with future land-use changes. |
| 收录类别 | SCI |
| WOS关键词 | LONG-TERM FERTILIZATION ; SOUTH-AFRICAN HIGHVELD ; OLD-GROWTH FOREST ; ORGANIC-MATTER ; AMINO-SUGARS ; PEPTIDOGLYCAN STRUCTURE ; CARBON FRACTIONS ; CROPPING SYSTEMS ; MURAMIC ACID ; LAND-USE |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000296137000011 |
| 出版者 | WILEY-BLACKWELL |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2559063 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Roth, Philipp J. |
| 作者单位 | 1.Univ Bonn, Inst Crop Sci & Resource Conservat INRES, Dept Soil Sci, D-53115 Bonn, Germany 2.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China 3.Tech Univ Munich, Dept Ecol & Ecosyst Management, Chair Soil Ecol, D-85758 Oberschleissheim, Germany 4.Tech Univ Munich, Dept Ecol & Ecosyst Management, Lehrstuhl Bodenkunde, D-85350 Freising Weihenstephan, Germany 5.Helmholtz Zentrum Munchen, Dept Terr Ecogenet, D-85758 Oberschleissheim, Germany |
| 推荐引用方式 GB/T 7714 | Roth, Philipp J.,Lehndorff, Eva,Cao, Zhi H.,et al. Accumulation of nitrogen and microbial residues during 2000 years of rice paddy and non-paddy soil development in the Yangtze River Delta, China[J]. GLOBAL CHANGE BIOLOGY,2011,17(11):3405-3417. |
| APA | Roth, Philipp J..,Lehndorff, Eva.,Cao, Zhi H..,Zhuang, Shunyao.,Bannert, Andrea.,...&Amelung, Wulf.(2011).Accumulation of nitrogen and microbial residues during 2000 years of rice paddy and non-paddy soil development in the Yangtze River Delta, China.GLOBAL CHANGE BIOLOGY,17(11),3405-3417. |
| MLA | Roth, Philipp J.,et al."Accumulation of nitrogen and microbial residues during 2000 years of rice paddy and non-paddy soil development in the Yangtze River Delta, China".GLOBAL CHANGE BIOLOGY 17.11(2011):3405-3417. |
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来源：南京土壤研究所
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