Arid
DOI10.1016/j.geoderma.2015.05.016
Spatio-temporal impacts of fire on soil nutrient availability in Larrea tridentata shrublands of the Mojave Desert, USA
Fuentes-Ramirez, Andres1; Schafer, Jennifer L.2; Mudrak, Erika L.1; Schat, Marjolein2; Parag, Hadas A.2; Holzapfel, Claus2; Moloney, Kirk A.1
通讯作者Fuentes-Ramirez, Andres
来源期刊GEODERMA
ISSN0016-7061
EISSN1872-6259
出版年2015
卷号259页码:126-133
英文摘要

Soil nutrients and herbaceous plant growth are patchily distributed in desert ecosystems, often restricted to "fertility islands" created by perennial shrubs. Although fire has been historically uncommon in southwestern American hot deserts (e.g., the Mojave), these regions have experienced more severe fires due to recent invasions of exotic species that increased proneness to fire. Nevertheless, the effects of fire on soil nutrients in SW deserts, including via the removal of shrubs by fire, remain unclear. We assessed the spatio-temporal impacts of fire on soil nutrient availability in burned and unburned areas of the Mojave Desert. The study was conducted in shrublands dominated by Larrea tridentata. We investigated both the short (seven months after fire) and long (seven years after fire) term effects of fire on soil nutrient availability within a microhabitat gradient spanning from under the shrub canopy to open inter-shrub areas. We found that nitrogen (N) and potassium (K) were higher under the canopy of burned L tridentata seven months after fire. In contrast, seven years after fire, N and K availability were lower around shrubs that were killed by fire. Over the short-term, fire had a positive effect on soil nutrients. However, over the long-term, the fertility island effect diminished after removal of shrubs by fire, and the differential availability of nutrients such as N and K became more similar under shrubs and in open inter-shrub areas. This reinforces the key role of L. tridentata in influencing the distribution of soil nutrients and provides support for the hypothesis that post-fire herbaceous plant growth will be less restricted to areas under shrubs. (C) 2015 Elsevier B.V. All rights reserved.


英文关键词Creosote bush Fertility islands Nitrogen Potassium Phosphorus PRS-probes Wildfire
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000360867800013
WOS关键词SONORAN DESERT ; ANNUAL PLANTS ; VEGETATION FIRES ; SPATIAL-PATTERN ; CREOSOTE-BUSH ; INORGANIC-N ; NITROGEN ; TERM ; ECOSYSTEM ; SHRUBS
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/2XILL650/187479
作者单位1.Iowa State Univ, Dept Ecol Evolut & Organismal Biol, Ames, IA 50011 USA;
2.Rutgers State Univ, Dept Biol Sci, Newark, NJ 07102 USA
推荐引用方式
GB/T 7714
Fuentes-Ramirez, Andres,Schafer, Jennifer L.,Mudrak, Erika L.,et al. Spatio-temporal impacts of fire on soil nutrient availability in Larrea tridentata shrublands of the Mojave Desert, USA[J],2015,259:126-133.
APA Fuentes-Ramirez, Andres.,Schafer, Jennifer L..,Mudrak, Erika L..,Schat, Marjolein.,Parag, Hadas A..,...&Moloney, Kirk A..(2015).Spatio-temporal impacts of fire on soil nutrient availability in Larrea tridentata shrublands of the Mojave Desert, USA.GEODERMA,259,126-133.
MLA Fuentes-Ramirez, Andres,et al."Spatio-temporal impacts of fire on soil nutrient availability in Larrea tridentata shrublands of the Mojave Desert, USA".GEODERMA 259(2015):126-133.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Fuentes-Ramirez, Andres]的文章
[Schafer, Jennifer L.]的文章
[Mudrak, Erika L.]的文章
百度学术
百度学术中相似的文章
[Fuentes-Ramirez, Andres]的文章
[Schafer, Jennifer L.]的文章
[Mudrak, Erika L.]的文章
必应学术
必应学术中相似的文章
[Fuentes-Ramirez, Andres]的文章
[Schafer, Jennifer L.]的文章
[Mudrak, Erika L.]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。