干旱区研究

干旱区研究 ›› 2016, Vol. 33 ›› Issue (3): 540-547.doi: 10.13866/j.azr.2016.03.13

• 植物及植物生理 • 上一篇    下一篇

亚玛雷克沙漠猫头刺和小叶锦鸡儿灌丛结构与风影沙丘间的关系

杨光1, 马文喜2, 包斯琴1, 张成福1   

  1. 1.内蒙古农业大学生态环境学院,内蒙古 呼和浩特 010019;
    2.内蒙古农业大学教务处,内蒙古 呼和浩特 010018
  • 收稿日期:2014-07-27 修回日期:2014-11-26 出版日期:2016-05-15 发布日期:2016-05-31
  • 作者简介:杨光(1974-),男,博士,副教授,主要研究方向为荒漠化遥感监测.E-mail:yg331@126.com
  • 基金资助:
    内蒙古自治区高等学校科学研究项目“基于3S技术的亚玛雷克沙漠成因及沙丘形态特征研究(NJZY14086)”资助

Relationship between the Structure of Oxytropis aciphylla and Caragana microphylia Shrubberies and Their Wind-Shadow Dunes

YANG Guang1, MA Wen-xi2, BAO Si-qin1, ZHANG Cheng-fu1   

  1. 1. College of Ecology and Environmental Science,Inner Mongolia Agricultural University,Hohhot 010019,Inner Mongolia,China;
    2. Office of Teaching Affairs,Inner Mongolia Agricultural University,Hohhot 010018,Inner Mongolia,China
  • Received:2014-07-27 Revised:2014-11-26 Published:2016-05-15 Online:2016-05-31

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摘要： 以亚玛雷克沙漠丘间地猫头刺(Oxytropis aciphylla Ledeb.)及小叶锦鸡儿(Caragana microphylla Lam.)2种典型灌丛及其风影沙丘为研究对象,采用摄影测量法获得了灌丛及其风影沙丘野外测量数据,分析了2种灌丛结构及其与风影沙丘间的关系。结果表明:在生境相同的情况下,猫头刺的平均积沙面积远小于小叶锦鸡儿,但平均积沙量却大于小叶锦鸡儿。植株高度、冠幅及植株迎风面剖面面积均为控制灌丛积沙效果的关键特征参数。在灌丛大小相近的情况下,猫头刺灌丛结构与风影沙丘特征参数间相关性更大些,积沙效果要优于小叶锦鸡儿。2种灌丛高度及灌丛迎风面剖面面积与其风影沙丘底面积、沙丘长度与沙丘体积总体上具有较高的拟合程度。2种灌丛的阻沙能力随着灌丛高度和灌丛迎风面剖面面积的增加呈不同增加趋势,且猫头刺阻沙能力大于小叶锦鸡儿。

关键词: 猫头刺(Oxytropis aciphylla Ledeb.), 小叶锦鸡儿(Caragana microphylla Lam.), 灌丛结构, 风影沙丘, 亚玛雷克沙漠

Abstract: In this study,two shrub species,i.e.Oxytropis aciphylla and Caragana microphylla,and their wind-shadow dunes were taken as the study objects to analyze the relationship between the structure of the two typical shrub species and their wind-shadow dunes.The results showed that,under the same habitat conditions,the average sand deposition area of O.aciphylla was much smaller than that of C.microphylla,but the average deposited sand volume of the former was bigger than that of the latter.The plant height,canopy and sectional area of windward side of the plants were all the key characteristic parameters affecting the sand-deposition effect of the shrubberies.Under the similar size of shrubberies,the correlation between the structure of O.aciphylla shrubbery and the characteristic parameters of the wind-shadow dune was higher than that between the structure of C.microphylla and the wind-shadow dune,the sand-deposition effect of O.aciphylla shrubbery was better than that of C.microphylla shrubbery.Holistically,the fitting degree between the plant height and the sectional area of windward side of the two typical shrub species and length and volume of wind-shadow dune was high.Sand trapping capability of the two typical shrub species was in an increase trend with the increase of shrubbery height and of sectional area of windward side of the plants,and the sand trapping capability of O.aciphylla was higher than that of C.microphylla.

Key words: Oxytropis aciphylla, Caragana microphylla, structure of shrubbery, wind-shadow dune, Yamaleike Desert