Characteristics of differently stabilised soil organic carbon fractions in relation to long-term fertilisation in Brown Earth of Northeast China
文献类型：期刊论文
| 作者 | Xu, Xiangru1,2; Zhang, Wenju2; Xiao, Jing2; Xu, Minggang2; Li, Shuangyi; An, Tingting1; Pei, Jiubo1; Xie, Hongtu3; Wang, Jingkuan1 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2016-12-01 |
| 卷号 | 572页码:1101-1110 |
| 关键词 | Soil Organic Carbon Long-term Fertilisation Stabilisation Mechanism Brown Earth Carbon Sequestration |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2016.08.018 |
| 英文摘要 | Long-term use of artificial fertiliser has a significant impact on soil organic carbon (SOC). We used physicalchemical fractionationmethods to assess the impact of long-term(26 years) fertilisation in amaize cropping system developed on Brown Earth in Northeast China. Plot treatments consisted of control (CK); nitrogen (N) fertiliser (N2); low-level organic manure combined with inorganic N and phosphorus (P) fertiliser (M1N1P1); medium-level organic manure combined with inorganic N fertiliser (M2N2); and high-level organic manure combined with inorganic N and P fertiliser (M4N2P1). Our objectives were to (1) determine the contents of and variations in the SOC fractions; (2) explore the relationship between total SOC and its fractions. In treatments involving organic manure (M1N1P1, M2N2, and M4N2P1), total SOC and physically protected microaggregate (mu agg) and aeagg occluded particulate organic carbon (iPOC) contents increased by 9.9-58.9%, 1.3-34.7%, 29.5-127.9% relative to control, respectively. But there no significant differences (P > 0.05) were detected for the chemically, physically-chemically, and physically-biochemically protected fractions among the M1N1P1, M2N2, and M4N2P1 treatments. Regression analysis revealed that there was a linear positive correlation between SOC and the unprotected coarse particulate organic carbon (cPOC), physically protected mu agg, and iPOC fractions (P < 0.05). However, physically-chemically, and physically-biochemically protected fractions responded negatively to SOC content. The highest rate of C accumulation among the SOC fractions occurred in the cPOC fraction, which accounted for as much as 32% of C accumulation as total SOC increased, suggesting that cPOC may be the most sensitive fraction to fertiliser application. We found that treatments had no effect on C levels in H-mu silt and NH-mu silt, indicating that the microaggregated silt C-fractions may have reached a steady state in terms of C saturation in the Brown Earth of Northeast China. (C) 2016 Elsevier B.V. All rights reserved. |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000387807200102 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://210.72.129.5/handle/321005/122896]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Zhang, Wenju; Wang, Jingkuan |
| 作者单位 | 1.Shenyang Agr Univ, Coll Land & Environm, Key Lab Arable Land Conservat Northeast China, Minist Agr, Shenyang 110866, Liaoning, Peoples R China 2.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Natl Engn Lab Improving Qual Arable Land, Beijing 100081, Peoples R China 3.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110164, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Xiangru,Zhang, Wenju,Xiao, Jing,et al. Characteristics of differently stabilised soil organic carbon fractions in relation to long-term fertilisation in Brown Earth of Northeast China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2016,572:1101-1110. |
| APA | Xu, Xiangru.,Zhang, Wenju.,Xiao, Jing.,Xu, Minggang.,Li, Shuangyi.,...&Wang, Jingkuan.(2016).Characteristics of differently stabilised soil organic carbon fractions in relation to long-term fertilisation in Brown Earth of Northeast China.SCIENCE OF THE TOTAL ENVIRONMENT,572,1101-1110. |
| MLA | Xu, Xiangru,et al."Characteristics of differently stabilised soil organic carbon fractions in relation to long-term fertilisation in Brown Earth of Northeast China".SCIENCE OF THE TOTAL ENVIRONMENT 572(2016):1101-1110. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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