中性糖在土壤中的来源与分布特征
文献类型：期刊论文
| 作者 | 刘程竹1,2; 贾 娟1,2; 戴国华2; 马 田1,2; 冯晓娟1,2 |
| 刊名 | 中性糖在土壤中的来源与分布特征
 |
| 出版日期 | 2019-09 |
| 卷号 | 43期号:4页码:284-295 |
| 关键词 | 土壤 中性糖 来源 分布特征 影响因素 |
| DOI | 10.17521/cjpe.2018.0213 |
| 其他题名 | 1,2 1,2 1 1,2 1,2* |
| 英文摘要 | Carbohydrates are important components of soil organic matter, which can be decomposed to different types of monosaccharides. Neutral monosaccharides in the soil are also called neutral sugars, including xylose, ribose, arabinose, glucose, galactose, mannose, fucose and rhamnose. Among them, plant-derived sugars mainly include pentoses, such as xylose and arabinose, while microbial-derived sugars mainly consist of hexoses including galactose, mannose, fucose and rhamnose. Generally, the ratios of hexoses to pentoses are used to evaluate the contribution of microbial- versus plant-derived sugars. Neutral sugars are the main carbon and energy resources for soil microorganisms and play a vital role in aggregates formation. In this study, we review studies about neutral sugars in soils over the past 30 years and compare different methods for neutral sugar analysis. Furthermore, we compare the distribution patterns and turnover of soil neutral sugars across diverse land-use regimes, different soil density and particle size fractions and their influencing factors. The lowest neutral sugar content is found in arable soils compared with other four land-use types (coniferous forests, deciduous forests, shrublands and grasslands) in terms of absolute and relative contents. No significant difference is observed for the (galactose + mannose)/ (arabinose + xylose)(GM/AX) ratios across the five land-use regimes. Nevertheless, the ratio of (rhamnose + fucose)/(arabinose + xylose)(RF/AX) indicates that microbially derived neutral sugars are more abundant in the soils of grasslands than coniferous forests or farmlands. The heavy fraction is characterized by an enrichment of microbial neutral sugars but a lower content of total neutral sugars compared to the light fraction. Concerning the distribution of neutral sugars across different soil size fractions (or aggregates), the microbial-derived neutral sugars are more abundant in the clay fraction (or microaggregates). As for the factors affecting neutral sugar content and distribution, many studies have focused on the human disturbances like agriculture and grazing, while the influence of environmental factors such as temperature, precipitation is poorly investigated. |
| 语种 | 中文 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/40080]  |
| 专题 | 中国科学院烟台海岸带研究所 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 |
| 通讯作者 | 冯晓娟 |
| 作者单位 | 1.中国科学院大学, 北京 100049 2.1 中国科学院植物研究所植被与环境变化国家重点实验室, 北京 100093 |
| 推荐引用方式 GB/T 7714 | 刘程竹,贾 娟,戴国华,等. 中性糖在土壤中的来源与分布特征[J]. 中性糖在土壤中的来源与分布特征,2019,43(4):284-295. |
| APA | 刘程竹,贾 娟,戴国华,马 田,&冯晓娟.(2019).中性糖在土壤中的来源与分布特征.中性糖在土壤中的来源与分布特征,43(4),284-295. |
| MLA | 刘程竹,et al."中性糖在土壤中的来源与分布特征".中性糖在土壤中的来源与分布特征 43.4(2019):284-295. |
入库方式： OAI收割
来源：烟台海岸带研究所
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