Arid
DOI10.1071/WF02021
Effects of fire season and intensity on Prosopis glandulosa Torr. var. glandulosa
Drewa, PB
通讯作者Drewa, PB
来源期刊INTERNATIONAL JOURNAL OF WILDLAND FIRE
ISSN1049-8001
出版年2003
卷号12期号:2页码:147-157
英文摘要

In pyrogenic ecosystems, responses of resprouting woody vegetation may depend more on fire season than on intensity. I explored this hypothesis by examining fire season and intensity effects on response of Prosopis glandulosa, a resprouting shrub in Chihuahuan desert grasslands of the south-western United States. Clipping as well as low and high intensity fires ( natural and added fuels, respectively) were applied during the 1999 growing season and the 2000 dormant season. Both fire season and intensity affected shrub responses. Numbers of resprouts increased 16%, and heights increased 8% after dormant season versus growing season treatments of fire and clipping combined. Height and resprout number decreased with increased fire intensity. Fire season and intensity effects on canopy area and stem growth were generally not detected. My results do not support the above hypothesis. Instead, fire season and intensity influence shrub responses in different ways via different mechanisms. Prosopis glandulosa has the potential to respond more after dormant season than growing season fires, perhaps as determined by carbohydrate availability in underground organs at the time of fire. However, realization of this potential is contingent on fire intensity as influenced primarily by fuel amount. In turn, fire intensity will determine the amount and duration of heat penetration into soils and thus the amount of damage to growing points of underground organs.


英文关键词Chihuahuan desert grasslands fire severity fire temperature honey mesquite New Mexico shrubs south-western United States
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000183755500003
WOS关键词LONGLEAF PINE SAVANNAS ; CHIHUAHUAN DESERT ; SONORAN DESERT ; NEW-MEXICO ; SHRUBS ; FOREST ; ECOSYSTEMS ; GRASSLAND ; PRECIPITATION ; REGENERATION
WOS类目Forestry
WOS研究方向Forestry
来源机构New Mexico State University
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/144881
作者单位(1)New Mexico State Univ, USDA ARS, Jornada Expt Range, Las Cruces, NM 88003 USA
推荐引用方式
GB/T 7714
Drewa, PB. Effects of fire season and intensity on Prosopis glandulosa Torr. var. glandulosa[J]. New Mexico State University,2003,12(2):147-157.
APA Drewa, PB.(2003).Effects of fire season and intensity on Prosopis glandulosa Torr. var. glandulosa.INTERNATIONAL JOURNAL OF WILDLAND FIRE,12(2),147-157.
MLA Drewa, PB."Effects of fire season and intensity on Prosopis glandulosa Torr. var. glandulosa".INTERNATIONAL JOURNAL OF WILDLAND FIRE 12.2(2003):147-157.
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
[Drewa, PB]的文章
百度学术
百度学术中相似的文章
[Drewa, PB]的文章
必应学术
必应学术中相似的文章
[Drewa, PB]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。