DOI: 10.1016/j.foreco.2013.09.024
Scopus记录号: 2-s2.0-84888133483
论文题名: Tree reduction and debris from mastication of Utah juniper alter the soil climate in sagebrush steppe
作者: Young K.R. ; Roundy B.A. ; Eggett D.L.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 310 起始页码: 777
结束页码: 785
语种: 英语
英文关键词: Mulch
; Resistance to invasion
; Resource availability
; Soil temperature
; Soil water
; Weeds
Scopus关键词: Mulch
; Resource availability
; Soil temperature
; Soil water
; Weeds
; Debris
; Soil moisture
; Temperature
; Forestry
; biological invasion
; canopy architecture
; growing season
; masting
; measurement method
; mulch
; resource availability
; shrub
; soil depth
; soil temperature
; soil water
; steppe
; understory
; water availability
; weed
; Forestry
; Mulch
; Soil
; Temperature
; Weeds
; Great Basin
; United States
; Utah
; Artemisia tridentata
; Juniperus
; Juniperus osteosperma
英文摘要: Juniper (Juniperus spp.) trees are masticated to reduce canopy fuel loads and the potential for crown fire. We determined the effects of tree reduction and soil cover in the forms of tree mounds and masticated debris on hourly soil water potential and soil temperature at 1-30. cm soil depth. Measurements were made in masticated and untreated areas at three sites in the western Utah portion of the Great Basin. Cumulative seasonal-response variables included wet days (>-1.5. MPa), degree days (>0. °C), and wet degree days (>-1.5. MPa and >0. °C). Masticated areas had 27 more wet days (P<. 0.001), 32 more degree days (P= 0.007), and 311 more wet degree days (P<. 0.001) than untreated areas across soil depths and seasons. Soil cover had less influence on these soil climate variables than tree reduction. Most importantly, tree reduction increased wet days (P<. 0.001) by an average of 44.5. days during the spring and summer growing seasons at depths of 13-30. cm. Managers are advised to masticate trees while desired understory cover remains high in order to minimize water available to weeds. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66236
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Plant and Wildlife Sciences, Brigham Young University, Provo, UT 84602, United States; Department of Statistics, Brigham Young University, Provo, UT 84602, United States
Recommended Citation:
Young K.R.,Roundy B.A.,Eggett D.L.. Tree reduction and debris from mastication of Utah juniper alter the soil climate in sagebrush steppe[J]. Forest Ecology and Management,2013-01-01,310