Sensitivity of soil organic carbon stocks and fractions to soil surface mulching in semiarid farmland
文献类型：期刊论文
| 作者 | Luo, Shasha; Zhu, Lin; Liu, Jianliang; Bu, Lingduo; Yue, Shanchao; Shen, Yufang; Li, Shiqing |
| 刊名 | EUROPEAN JOURNAL OF SOIL BIOLOGY
 |
| 出版日期 | 2015 |
| 卷号 | 67页码:35-42 |
| 关键词 | MICROBIAL BIOMASS-C PLASTIC FILM NO-TILL EXTRACTION METHOD CROPPING SYSTEMS MANAGEMENT INDEX LIGHT FRACTION LOESS PLATEAU SPRING WHEAT LAND-USE |
| 产权排序 | 3 |
| 通讯作者 | Li, SQ (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Peoples R China. |
| 合作状况 | 国内 |
| 英文摘要 | There is little information regarding the impact of plastic film and gravel mulching on soil organic carbon (SOC) stocks and labile fractions in semiarid areas of northwest China. Based on a 4-year spring maize (Zea mays L.) field experiment at Changwu Agricultural and Ecological Experimental Station, we analyzed the SOC stock, labile SOC pools and the C management index (CMI) in the 0-20 cm and 20-40 cm layers. The three treatments included non-mulched (CK), gravel-mulched (GM) and plastic film-mulched (FM). After the 4-year duration, compared with the initial SOC stock, the SOC stock under GM decreased 0.97 Mg C hm(-2) whereas under FM increased 1.14 Mg C hm(-2) in the 20-40 cm layer. Across the 0-40 cm layer, the SOC stock under GM significantly decreased, whereas under FM demonstrated some tendency to increase. In contrast to the CK, the FM treatment significantly increased light fraction organic C (LFOC) content (density <1.7 g cm(-3)) by 17.2 mg kg(-1) in the 20-40 cm layer. Although, the FM treatment significantly decreased the CMI in the 0-20 cm layer, compared with the CK, but an increased trend of CMI in the 20-40 cm layer was observed. KMnO4-oxidized organic C and LFOC were more sensitive than other C fractions in comparison of relative changes for labile SOC fractions. In conclusion, plastic film mulching could be the best option for sustainably enhancing crop productivity and maintaining soil quality in the semiarid regions of northwest China. (C) 2015 Elsevier Masson SAS. All rights reserved. |
| 学科主题 | Environmental Sciences & Ecology; Agriculture |
| 类目[WOS] | Ecology ; Soil Science |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://210.75.237.14/handle/351003/27536]  |
| 专题 | 成都生物研究所_生态研究 |
| 推荐引用方式 GB/T 7714 | Luo, Shasha,Zhu, Lin,Liu, Jianliang,et al. Sensitivity of soil organic carbon stocks and fractions to soil surface mulching in semiarid farmland[J]. EUROPEAN JOURNAL OF SOIL BIOLOGY,2015,67:35-42. |
| APA | Luo, Shasha.,Zhu, Lin.,Liu, Jianliang.,Bu, Lingduo.,Yue, Shanchao.,...&Li, Shiqing.(2015).Sensitivity of soil organic carbon stocks and fractions to soil surface mulching in semiarid farmland.EUROPEAN JOURNAL OF SOIL BIOLOGY,67,35-42. |
| MLA | Luo, Shasha,et al."Sensitivity of soil organic carbon stocks and fractions to soil surface mulching in semiarid farmland".EUROPEAN JOURNAL OF SOIL BIOLOGY 67(2015):35-42. |
入库方式： OAI收割
来源：成都生物研究所
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