Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.jaridenv.2012.06.010 |
Differential seedling performance and environmental correlates in shrub canopy vs. interspace microsites | |
Boyd, C. S.; Davies, K. W. | |
通讯作者 | Boyd, C. S. |
来源期刊 | JOURNAL OF ARID ENVIRONMENTS
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ISSN | 0140-1963 |
EISSN | 1095-922X |
出版年 | 2012 |
卷号 | 87页码:50-57 |
英文摘要 | Shrubs in semi-arid ecosystems promote micro-environmental variation in a variety of soil properties and site characteristics. However, little is known regarding post-fire seedling performance and its association with environmental variation in former shrub canopy and interspace microsites. We compared post-fire seeding success and various soil properties important for seedling establishment between shrub canopy and interspace microsites in Wyoming big sagebrush (Artemisia tridentata) plant communities in southeast Oregon, U.S.A. We burned 5, 20 x 20 m sites and established paired canopy and interspace micro-transects seeded with bluebunch wheatgrass (Pseudoroegneria spicata, 193 seeds/m) or crested wheatgrass (Agropyron cristatum, 177 seeds/m). At one year post-fire, seedling density was 69% higher (p = 0.012) for crested wheatgrass (compared to bluebunch wheatgrass) and 75% higher (p = 0.019) for interspace microsites (compared to canopy). However, tiller and leaf area production were over twice as high (p < 0.05) in canopy microsites. Soil color and soil temperature, explained 19-32% of variation in seedling performance metrics. Shrub effects on seeding success are complex and interact with abiotic disturbances, but patterns of increased seedling performance in canopy microsites and their relationships to soil variables may suggest tactics for increasing success of restoration practices. Published by Elsevier Ltd. |
英文关键词 | Heterogeneity Islands of fertility Resource island Revegetation Sagebrush Wildfire |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000312687000007 |
WOS关键词 | PRESCRIBED FIRE ; SPATIAL-DISTRIBUTION ; PLANT ESTABLISHMENT ; PERENNIAL GRASS ; SOIL NUTRIENTS ; ORGANIC-MATTER ; NATIVE PLANTS ; DESERT ; RESTORATION ; CHEATGRASS |
WOS类目 | Ecology ; Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/173302 |
作者单位 | ARS, USDA, EOARC, Burns, OR 97720 USA |
推荐引用方式 GB/T 7714 | Boyd, C. S.,Davies, K. W.. Differential seedling performance and environmental correlates in shrub canopy vs. interspace microsites[J],2012,87:50-57. |
APA | Boyd, C. S.,&Davies, K. W..(2012).Differential seedling performance and environmental correlates in shrub canopy vs. interspace microsites.JOURNAL OF ARID ENVIRONMENTS,87,50-57. |
MLA | Boyd, C. S.,et al."Differential seedling performance and environmental correlates in shrub canopy vs. interspace microsites".JOURNAL OF ARID ENVIRONMENTS 87(2012):50-57. |
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