Arid
DOI10.1016/j.geoderma.2015.11.013
Description of vegetation and soil properties in sagebrush steppe following pipeline burial, reclamation, and recovery time
Gasch, Caley K.1; Huzurbazar, Snehalata V.2; Stahl, Peter D.1
通讯作者Gasch, Caley K.
来源期刊GEODERMA
ISSN0016-7061
EISSN1872-6259
出版年2016
卷号265页码:19-26
英文摘要

Sagebrush (Artemisia tridentata Nutt.) steppe displays a high degree of heterogeneity in vegetation structure and in the spatial distribution of soil properties. Sagebrush steppe in south central Wyoming, USA, is experiencing a multitude of surface disturbances that involve vegetation removal and soil mixing. We hypothesized that drastic disturbance associated with pipeline burial would result in homogenization of above- and below-ground properties and that soil variability would be higher in areas with longer recovery time. We established a spatially explicit sampling design (<15 m scale) on neighboring reclaimed pipelines of different ages (1, 5, 36, and 55 years), and two adjacent undisturbed areas. We used descriptive statistics and Bayesian geostatistical models to quantify and compare the plant community and soil properties (soil moisture, organic carbon concentration, total microbial abundance, and electrical conductivity) across plots. Disturbance initially resulted in uniform cover of weedy plant species; older plots had uniform cover of grasses. Shrub and forb cover was highest in the 55 year old plot, but lower than the undisturbed reference areas. Soil properties in the youngest plots had increased soil moisture and salinity and decreased microbial abundance; these differences were less apparent in the older treatments. Disturbance did not result in universal homogenization of soil properties, and variability did not necessarily increase with recovery age for all properties. At the scale sampled, vegetation and soil properties did not display strong spatial correlation structures. Vegetation and soil properties in the 55 year old plot were most similar to the undisturbed sagebrush steppe, indicating greatest degree of recovery, compared with younger recovery ages. (C) 2015 Elsevier B.V. All rights reserved.


英文关键词Bayesian geostatistics Pipeline installation Semiarid rangeland Spatial heterogeneity
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000368746200004
WOS关键词ARBUSCULAR MYCORRHIZAL FUNGI ; SCALE SPATIAL HETEROGENEITY ; SURFACE MINE RECLAMATION ; ORGANIC-CARBON ; SHRUB-STEPPE ; MICROBIAL COMMUNITIES ; LAND-USE ; DESERT ECOSYSTEMS ; RIPARIAN WETLAND ; RECLAIMED SOILS
WOS类目Soil Science
WOS研究方向Agriculture
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/193180
作者单位1.Univ Wyoming, Dept Ecosyst Sci & Management, Program Ecol, 1000 E Univ Ave,Dept 3354, Laramie, WY 82071 USA;
2.Univ Wyoming, Dept Stat, 1000 E Univ Ave,Dept 3332, Laramie, WY 82071 USA
推荐引用方式
GB/T 7714
Gasch, Caley K.,Huzurbazar, Snehalata V.,Stahl, Peter D.. Description of vegetation and soil properties in sagebrush steppe following pipeline burial, reclamation, and recovery time[J],2016,265:19-26.
APA Gasch, Caley K.,Huzurbazar, Snehalata V.,&Stahl, Peter D..(2016).Description of vegetation and soil properties in sagebrush steppe following pipeline burial, reclamation, and recovery time.GEODERMA,265,19-26.
MLA Gasch, Caley K.,et al."Description of vegetation and soil properties in sagebrush steppe following pipeline burial, reclamation, and recovery time".GEODERMA 265(2016):19-26.
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