Air-drying changes the distribution of Hedley phosphorus pools in forest soils
文献类型：期刊论文
| 作者 | Wang Jipeng1,2 ; Wu Yanhong1; Zhou Jun1; Bing Haijian1; Sun Hongyang1; Luo Ji1; Pu Shengyan2
|
| 刊名 | PEDOSPHERE
 |
| 出版日期 | 2020 |
| 卷号 | 30期号:2页码:272-284 |
| 关键词 | Hedley fractionation labile phosphorus microbial biomass phosphorus phosphorous limitation slowly cycling phosphorus soil pretreatment |
| ISSN号 | 1002-0160 |
| DOI | 10.1016/S1002-0160(17)60456-9 |
| 产权排序 | 1 |
| 通讯作者 | Wu, Yanhong(yhwu@imde.ac.cn) |
| 文献子类 | Article |
| 英文摘要 | Hedley labile phosphorus (P) pools in soil tend to be several times larger than annual forest requirements, even in highly weathered soils characterized by P limitation. The discrepancy between plant and soil P status could be partly attributable to the frequently adopted air-drying pretreatment that tends to increase soil P solubility. In this study, the effects of air-drying on the distribution of Hedley P fractions were examined using soils collected under 4 forest types at Gongga Mountain, southwestern China. The results showed that the microbial biomass P (P mic) in the organic horizon decreased markedly after air-drying. The concentrations of Hedley labile P in the air-dried samples were 31%-73% more than those in the field-moist samples. Consequently, the air-drying-induced increments of Hedley labile P pools in the surface soil horizons were 0.8-3.8 times the annual plant P requirements. The organic horizon was more susceptible to the air-drying-induced increases in Hedley labile P than the mineral horizon, probably because of the stronger release of P mic and disruption of soil organic matter. The quality of P, indexed by the ratio of Hedley labile P to slowly cycling P, shifted in favor of the Hedley labile fractions after air-drying, further revealing that air-drying changed the distribution of Hedley P pools in forest soils. These indicated that the effects of air-drying could not be ignored when interpreting the discrepancy between the P status of plants and the Hedley labile P pools in forest soils. To more efficiently evaluate the P status in forest soils via the Hedley fractionation procedure, the use of field-moist soils is recommended. |
| 电子版国际标准刊号 | 2210-5107 |
| WOS关键词 | MICROBIAL BIOMASS ; ORGANIC PHOSPHORUS ; GONGGA MOUNTAIN ; FRACTIONS ; PHOSPHATE ; TRANSFORMATIONS ; MINERALIZATION ; SOLUBILIZATION ; MANAGEMENT ; SORPTION |
| 资助项目 | National Natural Science Foundation of China[41630751] ; National Natural Science Foundation of China[41401253] ; National Natural Science Foundation of China[41471416] |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000509783800012 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.imde.ac.cn/handle/131551/33866]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 通讯作者 | Wu Yanhong |
| 作者单位 | 1.Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China; 2.State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China |
| 推荐引用方式 GB/T 7714 | Wang Jipeng,Wu Yanhong,Zhou Jun,et al. Air-drying changes the distribution of Hedley phosphorus pools in forest soils[J]. PEDOSPHERE,2020,30(2):272-284. |
| APA | Wang Jipeng.,Wu Yanhong.,Zhou Jun.,Bing Haijian.,Sun Hongyang.,...&Pu Shengyan.(2020).Air-drying changes the distribution of Hedley phosphorus pools in forest soils.PEDOSPHERE,30(2),272-284. |
| MLA | Wang Jipeng,et al."Air-drying changes the distribution of Hedley phosphorus pools in forest soils".PEDOSPHERE 30.2(2020):272-284. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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