Arid
DOI10.1016/j.flora.2015.10.006
Effects of wind erosion and sand burial on growth and reproduction of a clonal shrub
Luo, Weicheng1,2; Zhao, Wenzhi1
通讯作者Zhao, Wenzhi
来源期刊FLORA
ISSN0367-2530
EISSN1618-0585
出版年2015
卷号217页码:164-169
英文摘要

Sand burial and wind erosion are two of the most severe stresses for plants in arid areas. Performance of herbaceous plants after burial has been extensively studied in inland and coastal dune ecosystems. However, studies of how clonal shrubs withstand these disturbances remain relatively scarce. Here, we tested the hypothesis that sand burial has negative effects and moderate erosion has positive effects on a clonal shrub, and maintaining rhizome connections helps plants tolerate both burial and erosion. One hundred eight 2m x 2m plots of Calligonum arborescens were established on an inland dune in the Badain Jaran Desert in northwestern China. Rhizomes at the edges of 54 (half) plots were severed to mimic the loss of rhizome connections. The top 15 or 30 cm of sand was removed for 2.5 or 5,months to simulate short- and long-term moderate and severe erosion, respectively. Addition of 5, 10, 20, or 40 cm layers of sand simulated sand burial. Untreated plots were used as controls. Both sand burial and wind erosion had significant effects on the growth and regeneration of C. arborescens. The number of ramets and biomass production decreased with increased burial depth and with severe erosion, but increased in moderate erosion treatments. Rhizome connections greatly increased ramet number and biomass production under both sand burial and severe erosion treatments. We concluded that both sand burial and severe erosion had negative effects on the clonal growth of C. arborescens, but that moderate wind erosion had positive effects. Rhizome connections alleviated the negative effects of sand burial and of severe erosion on the growth and performance of C. arborescens. (C) 2015 Elsevier GmbH. All rights reserved.


英文关键词Inland-dune clonal shrub Rhizome severance Wind erosion Sand burial Clonal growth
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000367110300017
WOS关键词DIVISION-OF-LABOR ; PHYSIOLOGICAL INTEGRATION ; RESOURCE-ALLOCATION ; FRAGARIA-CHILOENSIS ; SEEDLING EMERGENCE ; BIOMASS ALLOCATION ; SURVIVAL ; ADAPTATIONS ; CAPACITY ; PLANTS
WOS类目Plant Sciences ; Ecology
WOS研究方向Plant Sciences ; Environmental Sciences & Ecology
来源机构中国科学院西北生态环境资源研究院
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/187289
作者单位1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Linze Inland River Basin Res Stn, Key Lab Inland River Basin Ecohydrol, Lanzhou 730000, Peoples R China;
2.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式
GB/T 7714
Luo, Weicheng,Zhao, Wenzhi. Effects of wind erosion and sand burial on growth and reproduction of a clonal shrub[J]. 中国科学院西北生态环境资源研究院,2015,217:164-169.
APA Luo, Weicheng,&Zhao, Wenzhi.(2015).Effects of wind erosion and sand burial on growth and reproduction of a clonal shrub.FLORA,217,164-169.
MLA Luo, Weicheng,et al."Effects of wind erosion and sand burial on growth and reproduction of a clonal shrub".FLORA 217(2015):164-169.
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