Impact of land use and nutrient addition on phosphatase activities and their relationships with organic phosphorus turnover in semi-arid grassland soils
文献类型：期刊论文
| 作者 | Tian, Jihui1,2; Wei, Kai1; Condron, Leo M.3; Chen, Zhenhua1; Xu, Zhuwen1; Chen, Lijun1 |
| 刊名 | BIOLOGY AND FERTILITY OF SOILS
 |
| 出版日期 | 2016-07-01 |
| 卷号 | 52期号:5页码:675-683 |
| 关键词 | Organic Phosphorus Turnover Phosphatase Activities P-31 Nmr Spectroscopy Land Use Nitrogen And Phosphorus Additions Semi-arid Grasslands |
| ISSN号 | 0178-2762 |
| DOI | 10.1007/s00374-016-1110-z |
| 英文摘要 | Information on the relationships between phosphatase activities and organic phosphorus (P) turnover is fundamental to understanding soil P dynamics but remains poorly understood. An 8-year field study was conducted in a steppe and an abandoned cropland under semi-arid grasslands to explore the effects of nitrogen (N) and P additions on P composition in soil as determined by P-31 nuclear magnetic resonance (NMR) and associated phosphatase activities. Results showed that the phosphate monoester content, soil acid phosphomonoesterase, alkaline phosphomonoesterase, and phosphodiesterase activities were higher in the steppe than in the abandoned cropland soil. Nitrogen addition significantly suppressed phosphatase activities. Phosphorus addition significantly increased acid phosphomonoesterase, alkaline phosphomonoesterase, and phosphodiesterase activities in the steppe but significantly decreased them in the abandoned cropland. Structural equation modeling revealed that both phosphodiesterase and alkaline phosphomonoesterase activities showed significant negative effects on diesters and monoesters in the steppe, but there were no significant effects of phosphatase activities on organic P composition in the abandoned cropland. Our findings highlight the variation of dominant mechanisms involved in organic P turnover with land use change. Phosphorus deficiency in the steppe appeared to promote the production of phosphatases and the subsequent biochemical mineralization of organic P. While in the abandoned cropland, previous cultivation resulted in a proportionally greater loss of soil organic carbon than that of organic P, indicating that organic P was mineralized as a result of biological mineralization of organic matter. |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000377994900008 |
| 出版者 | SPRINGER |
| 源URL | [http://210.72.129.5/handle/321005/122734]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Chen, Lijun |
| 作者单位 | 1.Chinese Acad Sci, Inst Appl Ecol, POB 417, Shenyang 110016, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Lincoln Univ, Fac Agr & Life Sci, POB 85084, Christchurch 7647, New Zealand |
| 推荐引用方式 GB/T 7714 | Tian, Jihui,Wei, Kai,Condron, Leo M.,et al. Impact of land use and nutrient addition on phosphatase activities and their relationships with organic phosphorus turnover in semi-arid grassland soils[J]. BIOLOGY AND FERTILITY OF SOILS,2016,52(5):675-683. |
| APA | Tian, Jihui,Wei, Kai,Condron, Leo M.,Chen, Zhenhua,Xu, Zhuwen,&Chen, Lijun.(2016).Impact of land use and nutrient addition on phosphatase activities and their relationships with organic phosphorus turnover in semi-arid grassland soils.BIOLOGY AND FERTILITY OF SOILS,52(5),675-683. |
| MLA | Tian, Jihui,et al."Impact of land use and nutrient addition on phosphatase activities and their relationships with organic phosphorus turnover in semi-arid grassland soils".BIOLOGY AND FERTILITY OF SOILS 52.5(2016):675-683. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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。