Arid
DOI10.2136/sssaj1997.03615995006100010041x
The pattern of soil variables related to Artemisia tridentata in a burned shrub-steppe site
Halvorson, JJ; Bolton, H; Smith, JL
通讯作者Halvorson, JJ
来源期刊SOIL SCIENCE SOCIETY OF AMERICA JOURNAL
ISSN0361-5995
出版年1997
卷号61期号:1页码:287-294
英文摘要

Artemisia tridentata Nutt. is a prominent shrub of cool deserts in the USA that influences the patterns of chemistry and microbiological activity in the soil in which it grows. However, little is known about the fate of these patterns following the death or removal of the live A. tridentata plant. We compared abutting burned and unburned sites to see if patterns in soil could be related to locations where shrubs were removed by fire 9 yr earlier. While most soil variables were significantly higher in the unburned site than in the burned site, total organic C and soil pH appear unaffected by the removal of A. tridentata or the fire itself. Differences between unburned and burned sites were greatest near the location of a plant axis. In contrast, burned soil was not distinguishable from unburned soil at distances greater than approximate to 50 cm away from a live A. tridentata axis or a charred stump indicating that soil patterns were most affected by removal of the plant and not by the fire. Nearly a decade after the fire, significant effects of A. tridentata on patterns of some soil variables in the burned site were still detectable. Significantly higher values for total organic C, total N, water soluble C, electrical conductivity, and soil microbial biomass C were observed near the location of charred A. tridentata stumps than at distances further away. These patterns are a significant source of soil variability that may be difficult to account for because they are not related to the obvious location of live plants.


类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:A1997WH68000041
WOS关键词MICROBIAL BIOMASS ; NITROGEN MINERALIZATION ; ORGANIC-CARBON ; ECOSYSTEM ; HISTORIES ; LANDSCAPE ; PLANT
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/2XILL650/135078
作者单位(1)WASHINGTON STATE UNIV, USDA ARS, LAND MANAGEMENT & WATER CONSERVAT RES UNIT, PULLMAN, WA 99164 USA
推荐引用方式
GB/T 7714
Halvorson, JJ,Bolton, H,Smith, JL. The pattern of soil variables related to Artemisia tridentata in a burned shrub-steppe site[J],1997,61(1):287-294.
APA Halvorson, JJ,Bolton, H,&Smith, JL.(1997).The pattern of soil variables related to Artemisia tridentata in a burned shrub-steppe site.SOIL SCIENCE SOCIETY OF AMERICA JOURNAL,61(1),287-294.
MLA Halvorson, JJ,et al."The pattern of soil variables related to Artemisia tridentata in a burned shrub-steppe site".SOIL SCIENCE SOCIETY OF AMERICA JOURNAL 61.1(1997):287-294.
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