Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.2111/REM-D-11-00007.1 |
Density-Dependent Ecohydrological Effects of Pinon-Juniper Woody Canopy Cover on Soil Microclimate and Potential Soil Evaporation | |
Royer, Patrick D.2,3; Breshears, David D.1,4; Zou, Chris B.5; Villegas, Juan Camilo6; Cobb, Neil S.7,8; Kurc, Shirley A.1,9 | |
通讯作者 | Breshears, David D. |
来源期刊 | RANGELAND ECOLOGY & MANAGEMENT
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ISSN | 1550-7424 |
出版年 | 2012 |
卷号 | 65期号:1页码:11-20 |
英文摘要 | Many rangeland processes are driven by microclimate and associated ecohydrological dynamics. Most rangelands occur in drylands where evapotranspiration normally dominates the water budget. In these water-limited environments plants can influence abiotic and biotic processes by modifying microclimate factors such as soil temperature and potential soil evaporation. Previous studies have assessed spatial variation in microclimate and associated ecohydrological attributes within an ecosystem (e.g., under vs. between woody canopies) or across ecosystems (e.g., with differing amounts of woody canopy cover), but generally lacking are assessments accounting systematically for both, particularly for evergreen woody plants. Building on recently quantified trends in near-ground solar radiation associated with a pinon juniper gradient spanning 5% to 65% woody canopy cover, we evaluated trends in soil temperature and associated estimates of potential soil evaporation as a function of amount of woody canopy cover for sites overall and for associated canopy vs. intercanopy locations. Quantified soil temperature trends decreased linearly with increasing woody canopy cover for intercanopy as well as canopy patches, indicating the coalescing influence of individual canopies on their neighboring areas. Notably, intercanopy locations within high-density (65%) woody canopy cover could be as much as similar to 10 degrees C cooler than intercanopy locations within low-density (5%) cover. Corresponding potential soil evaporation rates in intercanopies within high-density woody canopy cover was less than half that for intercanopies within low density. Our results highlight ecohydrological consequences of density-dependent shading by evergreen woody plants on soil temperature and potential soil evaporation and enable managers to rapidly estimate and compare approximate site microclimates after assessing amounts of woody canopy cover. Such predictions of microclimate have general utility for improving management of rangelands because they are a fundamental driver of many key processes, whether related to understory forage and herbaceous species or to wildlife habitat quality for game or nongame species. |
英文关键词 | intercanopy near-ground radiation pinon pine soil temperature |
类型 | Article |
语种 | 英语 |
国家 | USA ; Colombia |
收录类别 | SCI-E |
WOS记录号 | WOS:000299604800002 |
WOS关键词 | GRASSLAND-FOREST CONTINUUM ; SEMIARID LANDSCAPES ; VEGETATION PATCHES ; SOLAR-RADIATION ; NEW-MEXICO ; DESERT ; EVAPOTRANSPIRATION ; HETEROGENEITY ; ARCHITECTURE ; TEMPERATURE |
WOS类目 | Ecology ; Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
来源机构 | University of Arizona |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/174744 |
作者单位 | 1.Univ Arizona, Sch Nat Resources & Environm, Tucson, AZ 85721 USA; 2.Columbia Basin Groundwater Management Area, Kennewick, WA 99336 USA; 3.No Arizona Univ, Geospatial Res & Inventory Lab, Flagstaff, AZ 86011 USA; 4.Univ Arizona, Dept Ecol & Evolutionary Biol, Tucson, AZ 85721 USA; 5.Oklahoma State Univ, Dept Nat Resource Ecol & Management, Stillwater, OK 74078 USA; 6.Univ Antioquia, Sch Environm, Medellin, Colombia; 7.No Arizona Univ, Merriam Powell Ctr Environm Res, Flagstaff, AZ 86011 USA; 8.No Arizona Univ, Dept Biol Sci, Flagstaff, AZ 86011 USA; 9.Univ Arizona, Dept Soil Water & Environm, Tucson, AZ 85721 USA |
推荐引用方式 GB/T 7714 | Royer, Patrick D.,Breshears, David D.,Zou, Chris B.,et al. Density-Dependent Ecohydrological Effects of Pinon-Juniper Woody Canopy Cover on Soil Microclimate and Potential Soil Evaporation[J]. University of Arizona,2012,65(1):11-20. |
APA | Royer, Patrick D.,Breshears, David D.,Zou, Chris B.,Villegas, Juan Camilo,Cobb, Neil S.,&Kurc, Shirley A..(2012).Density-Dependent Ecohydrological Effects of Pinon-Juniper Woody Canopy Cover on Soil Microclimate and Potential Soil Evaporation.RANGELAND ECOLOGY & MANAGEMENT,65(1),11-20. |
MLA | Royer, Patrick D.,et al."Density-Dependent Ecohydrological Effects of Pinon-Juniper Woody Canopy Cover on Soil Microclimate and Potential Soil Evaporation".RANGELAND ECOLOGY & MANAGEMENT 65.1(2012):11-20. |
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