Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s10533-010-9408-7 |
Chemical and textural controls on phosphorus mobility in drylands of southeastern Utah | |
Buckingham, Susan E.1,2; Neff, Jason1; Titiz-Maybach, Beyhan3; Reynolds, Richard L.2 | |
通讯作者 | Buckingham, Susan E. |
来源期刊 | BIOGEOCHEMISTRY |
ISSN | 0168-2563 |
出版年 | 2010 |
卷号 | 100期号:1-3页码:105-120 |
英文摘要 | We investigated several forms of phosphorus (P) in dryland soils to examine the chemical and textural controls on P stabilization on a diverse set of substrates. We examined three P fractions including labile, moderately labile, and occluded as determined by a modified Hedley fractionation technique. The P fractions were compared to texture measurements and total elemental concentrations determined by inductively coupled plasma-atomic emission spectroscopy (ICP-AES). Labile P related to the absence of materials involved in P sorption. Moderately labile P was most strongly associated with high total Al & Fe content that we interpret to represent oxides and 1:1 clay minerals. The occluded P fraction was strongly associated with low total Al & Fe environments and interpreted to represent 2:1 clay minerals where ligand exchange tightly sequesters P. The results indicate that the controls on P fraction distribution are initially closely tied to the chemical and physical properties of the bedrock units that contribute to soil formation. Further, these results suggest that the progression of stabilized P forms in dryland areas differs from the progression observed in mesic environments. Soil development in dryland settings, such as the formation of pedogenic carbonates, may lead to differing controls on P availability and the proportional size of the moderately labile fraction. |
英文关键词 | Available phosphorus Canyonlands National Park Hedley fractions Occluded phosphorus Soil biogeochemistry P stabilization |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000281568700008 |
WOS关键词 | AFFECTING PHOSPHATE SORPTION ; CALCAREOUS SOILS ; MEDITERRANEAN SHRUBLAND ; WESTERN-AUSTRALIA ; PLANT NUTRIENTS ; SEMIARID SOILS ; ADSORPTION ; DESERT ; OXIDES ; PH |
WOS类目 | Environmental Sciences ; Geosciences, Multidisciplinary |
WOS研究方向 | Environmental Sciences & Ecology ; Geology |
来源机构 | United States Geological Survey |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/163449 |
作者单位 | 1.Univ Colorado Boulder, Boulder, CO 80309 USA; 2.US Geol Survey, Denver, CO 80225 USA; 3.Univ Denver, Denver, CO USA |
推荐引用方式 GB/T 7714 | Buckingham, Susan E.,Neff, Jason,Titiz-Maybach, Beyhan,et al. Chemical and textural controls on phosphorus mobility in drylands of southeastern Utah[J]. United States Geological Survey,2010,100(1-3):105-120. |
APA | Buckingham, Susan E.,Neff, Jason,Titiz-Maybach, Beyhan,&Reynolds, Richard L..(2010).Chemical and textural controls on phosphorus mobility in drylands of southeastern Utah.BIOGEOCHEMISTRY,100(1-3),105-120. |
MLA | Buckingham, Susan E.,et al."Chemical and textural controls on phosphorus mobility in drylands of southeastern Utah".BIOGEOCHEMISTRY 100.1-3(2010):105-120. |
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