Straw application coupled with N and P supply enhanced microbial biomass, enzymatic activity, and carbon use efficiency in saline soil
文献类型：期刊论文
| 作者 | Xie, Wenjun3,4; Zhang, Yanpeng3; Li, Jianyong1; Wei, Shoucai3; Li, Xueping3; Yu, Hao3; Guan, Bo2
|
| 刊名 | APPLIED SOIL ECOLOGY
 |
| 出版日期 | 2021-12-01 |
| 卷号 | 168页码:8 |
| 关键词 | Straw decomposition Microbial biomass Enzymatic activity Microbial C use efficiency |
| ISSN号 | 0929-1393 |
| DOI | 10.1016/j.apsoil.2021.104128 |
| 通讯作者 | Xie, Wenjun(xwjeric@163.com) ; Guan, Bo(bguan@yic.ac.cn) |
| 英文摘要 | Straw application is an efficient technology in saline soil improvement; however, the influence of nutrient (N and P) supply in this process on reclaiming saline land remains unclear. In the present study, N and P addition at different levels was thus employed in a wheat straw applied saline soil to investigate the responses of straw decomposition, soil enzymes (phosphatase, APA; beta-glucosidase, BG; protease, PA; and urease, UA), and microbial carbon (C) use efficiency (CUE). In a 28-d soil incubation, five treatments were performed, i.e., ST, LO, MI, HI (representing straw with zero, low, medium, and high N and P inputs, respectively), and CK (without straw and nutrient). The results showed that straw decomposition and microbial biomass were significantly enhanced with the addition of N and P. The activities of APA, BG, PA, and UA increased to varying degrees, while the influence on biomass-specific activities changed with enzyme type under straw and nutrient application. Compared with ST, the addition of N and P decreased soil cumulative C levels in CO2 (CO2-C) evolution and microbial metabolic quotient (qCO(2)) by 4.1%-21.3% and 15.1%-38.9%, respectively. The values of CUE were in the following orders: MI > LO > HI approximate to ST at 14 d and LO > HI > MI > ST at 28 d, suggesting that N and P supply could increase CUE, but the effect on CUE could not enhance with increasing N and P input levels. Soil organic C contents were significantly positively correlated with the amount of straw decomposition and MBN, and significantly negatively correlated with qCO(2). Hence, we suggest that adequate N and P supply may be an effective practice for increasing C sequestration in saline soil through straw application. |
| WOS关键词 | ORGANIC-MATTER ; STOICHIOMETRY ; NITROGEN ; GROWTH ; LITTER ; MINERALIZATION ; AMENDMENTS ; COMMUNITY ; RESIDUES ; BIOCHAR |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000701612500007 |
| 资助机构 | National Natural Science Foundation of China ; Key Research and Development Program of Shandong Province |
| 源URL | [http://ir.yic.ac.cn/handle/133337/30744]  |
| 专题 | 烟台海岸带研究所_近岸生态与环境实验室 |
| 通讯作者 | Xie, Wenjun; Guan, Bo |
| 作者单位 | 1.Tech Ctr Jinan Customs, Food Safety Testing Lab, Jinan, Shandong, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai, Shandong, Peoples R China 3.Binzhou Univ, Key Lab Instrumental Anal Binzhou City, Sch Biol & Environm Engn, Binzhou, Shandong, Peoples R China 4.Qingdao Agr Univ, Coll Resources & Environm Sci, Qingdao, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xie, Wenjun,Zhang, Yanpeng,Li, Jianyong,et al. Straw application coupled with N and P supply enhanced microbial biomass, enzymatic activity, and carbon use efficiency in saline soil[J]. APPLIED SOIL ECOLOGY,2021,168:8. |
| APA | Xie, Wenjun.,Zhang, Yanpeng.,Li, Jianyong.,Wei, Shoucai.,Li, Xueping.,...&Guan, Bo.(2021).Straw application coupled with N and P supply enhanced microbial biomass, enzymatic activity, and carbon use efficiency in saline soil.APPLIED SOIL ECOLOGY,168,8. |
| MLA | Xie, Wenjun,et al."Straw application coupled with N and P supply enhanced microbial biomass, enzymatic activity, and carbon use efficiency in saline soil".APPLIED SOIL ECOLOGY 168(2021):8. |
入库方式： OAI收割
来源：烟台海岸带研究所
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