Tillage effects on soil carbon fractions in the sanjiang plain, northeast china
文献类型：期刊论文
| 作者 | Zhang, Jinbo; Song, Changchun; Yang, Wenyan |
| 刊名 | Soil & tillage research
 |
| 出版日期 | 2007-03-01 |
| 卷号 | 93期号:1页码:102-108 |
| 关键词 | Free light fraction Intra-aggregate light fraction Heavy fraction Soil organic c Northeast china |
| ISSN号 | 0167-1987 |
| DOI | 10.1016/j.still.2006.03.014 |
| 通讯作者 | Song, changchun(songcc@nergae.ac.cn) |
| 英文摘要 | Soil organic carbon (soc) is important for crop production, improving soil quality, and regulating global c cycling. the objective of this study was to estimate c fraction dynamics under the influence of tillage in the sanjiang plain of northeast china. rate of decline in the free light fraction (flf) c concentration was much greater than that of intra-aggregate light fraction (ilf) c, heavy fraction (hf) c and soc during the initial 5 years of cultivation (p < 0.05). cultivation led to accumulation in hf-c compared to the other fractions. the contribution of different fractions to respiration varied with cultivation. in native marshland, hf-c, flf-c and ilf-c were responsible for 33%, 63% and 4% of the soil respiration, respectively. in soil cultivated for i or 3 years, contributions of combined flf-c and ilf-c to respiration were higher than hf-c. however, after 5 years of cultivation, contributions of hf-c to respiration (55%) were higher than that of combined flf-c and ilf-c (45%). in soil cultivated for 35 years, the hf-c was responsible for almost 69% of the respiration. therefore, c dynamics in the soil are controlled by the behavior of lf-c in the natural soil and short-term (< 5 years) cultivated soils. in long-term (>5 years) cultivated soils, c dynamics are controlled by the behavior of hf-c. (c) 2006 elsevier b.v. all rights reserved. |
| WOS关键词 | ORGANIC-MATTER DYNAMICS ; FRESH-WATER MARSHES ; DENSITY FRACTIONS ; NITROGEN MINERALIZATION ; METHANE EMISSIONS ; NEW-ZEALAND ; CULTIVATION ; SYSTEMS ; FOREST |
| WOS研究方向 | Agriculture |
| WOS类目 | Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000244163800010 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2382891 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Song, Changchun |
| 作者单位 | 1.Chinese Acad Sci, NE Inst Geog & Agr Ecol, Changchun 130012, Jilin, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 10039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Jinbo,Song, Changchun,Yang, Wenyan. Tillage effects on soil carbon fractions in the sanjiang plain, northeast china[J]. Soil & tillage research,2007,93(1):102-108. |
| APA | Zhang, Jinbo,Song, Changchun,&Yang, Wenyan.(2007).Tillage effects on soil carbon fractions in the sanjiang plain, northeast china.Soil & tillage research,93(1),102-108. |
| MLA | Zhang, Jinbo,et al."Tillage effects on soil carbon fractions in the sanjiang plain, northeast china".Soil & tillage research 93.1(2007):102-108. |
入库方式： iSwitch采集
来源：中国科学院大学
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。