Effects of soil erosion and deposition on soil organic carbon dynamics at a sloping field in black soil region, northeast china
文献类型：期刊论文
| 作者 | Cheng, Shulan2; Fang, Huajun1; Zhu, Tianhong2; Zheng, Jiaojiao2; Yang, Xueming3; Zhang, Xiaoping4; Yu, Guirui1 |
| 刊名 | Soil science and plant nutrition
 |
| 出版日期 | 2010-08-01 |
| 卷号 | 56期号:4页码:521-529 |
| 关键词 | 13c natural abundance Black soils Physical separation Soil organic carbon Soil redistribution |
| ISSN号 | 0038-0768 |
| DOI | 10.1111/j.1747-0765.2010.00492.x |
| 通讯作者 | Fang, huajun(huajunfang@yahoo.com.cn) |
| 英文摘要 | Soil erosion transports light density and fine particle soil material from hills down to low-lying land areas, which can lead to carbon loss and subsequent sequestration. in the present paper, the profile distribution of soil organic carbon (soc) and soil 13c natural abundance (delta 13c) were analyzed across five geomorphic positions, distributed along a typical rolling farmland in the black soil region of northeast china. the contents of particulate organic carbon (poc) and mineral-associated organic carbon (moc) at each geomorphic position were measured with physical fraction method. the results showed that soil erosion decreased 5.3-22.4% of soc and increased 4.0-6.1% of delta 13c of surface soils at the eroding sites. at the typical depositional sites, soc content and delta 13c value in the buried surface layer were 1.5 times and 1.1 times as much as those of the current plough layer, respectively. soil erosion did not change the poc content, but moc content decreased by 9.3-35.2%. at the eroding sites, the coefficient of determination between soil delta 13c and moc (r2 = 0.52) was higher than that between soil delta 13c and poc (r2 = 0.37). our study indicated that soil erosion decreased soc content and increased delta 13c(soc) in surface layer mainly through transferring fine sized and 13c-depleted soc fraction. deep burial and re-aggregation of eroded materials at depositional sites were in favor of stabilization and sequestration of soc. |
| WOS关键词 | MATTER DYNAMICS ; WATER EROSION ; SEQUESTRATION ; CULTIVATION ; TILLAGE ; IMPACT ; FRACTIONS ; AGGREGATE ; ABUNDANCE ; TURNOVER |
| WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology ; Agriculture |
| WOS类目 | Plant Sciences ; Environmental Sciences ; Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000281638300002 |
| 出版者 | WILEY-BLACKWELL |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2407860 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Fang, Huajun |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Agr & Agri Food Canada, Greenhouse & Proc Crops Res Ctr, Harrow, ON N0R 1G0, Canada 4.Chinese Acad Sci, NE Inst Geog & Agr Ecol, Changchun 130012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cheng, Shulan,Fang, Huajun,Zhu, Tianhong,et al. Effects of soil erosion and deposition on soil organic carbon dynamics at a sloping field in black soil region, northeast china[J]. Soil science and plant nutrition,2010,56(4):521-529. |
| APA | Cheng, Shulan.,Fang, Huajun.,Zhu, Tianhong.,Zheng, Jiaojiao.,Yang, Xueming.,...&Yu, Guirui.(2010).Effects of soil erosion and deposition on soil organic carbon dynamics at a sloping field in black soil region, northeast china.Soil science and plant nutrition,56(4),521-529. |
| MLA | Cheng, Shulan,et al."Effects of soil erosion and deposition on soil organic carbon dynamics at a sloping field in black soil region, northeast china".Soil science and plant nutrition 56.4(2010):521-529. |
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来源：中国科学院大学
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