Air-drying changes the distribution of Hedley phosphorus pools in forest soils

doi:10.1007/s11629-019-5812-1

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部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

	Air-drying changes the distribution of Hedley phosphorus pools in forest soils
	Wang Jipeng 1,2; Wu Yanhong 2; Zhou Jun 2; Bing Haijian 2; Sun Hongyang 2; Luo Ji 2; Pu Shengyan 1
刊名	PEDOSPHERE
	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	10.1007/s11629-019-5812-1
产权排序	1
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	1993-0321
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关键词	MICROBIAL BIOMASS ; ORGANIC PHOSPHORUS ; GONGGA MOUNTAIN ; FRACTIONS ; PHOSPHATE ; TRANSFORMATIONS ; MINERALIZATION ; SOLUBILIZATION ; MANAGEMENT ; SORPTION
WOS研究方向	Agriculture
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000509783800012
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
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.State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China 2.Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, 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.