| Air-drying changes the distribution of Hedley phosphorus pools in forest soils | |
Wang Jipeng1,2 ; Wu Yanhong1; Zhou Jun1; Bing Haijian1; Sun Hongyang1; Luo Ji1; Pu Shengyan2
| |
| Corresponding Author | Wu, Yanhong(yhwu@imde.ac.cn) |
| 2020 | |
| Source Publication | PEDOSPHERE
 |
| ISSN | 1002-0160 |
| EISSN | 2210-5107 |
| Volume | 30Issue:2Pages:272-284 |
| Subtype | Article |
| Contribution Rank | 1 |
| Abstract | 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. |
| Keyword | Hedley fractionation labile phosphorus microbial biomass phosphorus phosphorous limitation slowly cycling phosphorus soil pretreatment |
| DOI | 10.1016/S1002-0160(17)60456-9 |
| Indexed By | SCI |
| WOS Keyword | MICROBIAL BIOMASS ; ORGANIC PHOSPHORUS ; GONGGA MOUNTAIN ; FRACTIONS ; PHOSPHATE ; TRANSFORMATIONS ; MINERALIZATION ; SOLUBILIZATION ; MANAGEMENT ; SORPTION |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[41630751] ; National Natural Science Foundation of China[41401253] ; National Natural Science Foundation of China[41471416] |
| WOS Research Area | Agriculture |
| WOS Subject | Soil Science |
| WOS ID | WOS:000509783800012 |
| Funding Organization | National Natural Science Foundation of China |
| Publisher | SCIENCE PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/33866 |
| Collection | 山地表生过程与生态调控重点实验室 |
| Corresponding Author | Wu Yanhong |
| Affiliation | 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 |
| First Author Affilication | 中国科学院水利部成都山地灾害与环境研究所 |
| Corresponding Author Affilication | 中国科学院水利部成都山地灾害与环境研究所 |
| Recommended Citation 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. |
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| File Name/Size | DocType | Version | Access | License | ||
| 1-s2.0-S100201601760（1474KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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