img

官方微信

  • CN 62-1070/P
  • ISSN 1000-694X
  • 双月刊 创刊于1981年
高级检索
沙漠与沙漠化

油蒿(Artemisia ordosica)退化阶段对灌丛沙堆形态的影响

  • 赵洋 ,
  • 张志山 ,
  • 陈永乐 ,
  • 徐冰鑫 ,
  • 陈栋
展开
  • 中国科学院寒区旱区环境与工程研究所 沙坡头沙漠研究试验站, 甘肃 兰州 730000
赵洋(1984-),男,博士,助理研究员,主要从事干旱区生态和景观过程的研究。Email: zhaoyang66@126.com

收稿日期: 2014-07-18

  修回日期: 2014-09-12

  网络出版日期: 2015-09-20

基金资助

国家自然科学基金项目(41471434,41501270);中国科学院寒区旱区环境与工程研究所青-人才成长基金项目

Effect of Degradation Stage of Artemisia ordosica on Morphology of Nebkhas

  • Zhao Yang ,
  • Zhang Zhishan ,
  • Chen Yongle ,
  • Xu Bingxin ,
  • Chen Dong
Expand
  • Shapotou Desert Research and Experimental Station, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China

Received date: 2014-07-18

  Revised date: 2014-09-12

  Online published: 2015-09-20

摘要

典型固沙灌木油蒿(Artemisia ordosica)退化过程中如何影响灌丛沙堆的形态特征,仍然未知。在腾格里沙漠东南缘1990年建立的人工固沙植被区,分别对油蒿生殖株、半死株和死株3个阶段灌丛沙堆形态特征进行了调查。结果表明:半死株油蒿灌丛沙堆的高度和体积显著高于死株和生殖株形成的灌丛沙堆,生殖株、半死株和死株灌丛沙堆高度分别为4.8 cm、21.0 cm和12.4 cm,体积分别为0.031 m3、0.159 m3和0.109 m3,坡度分别为3.5°~7.8°、32°~36°和16°~26°。植株特征的改变及所引起的气流变化影响到灌丛沙堆形态特征,不同退化阶段的油蒿显著影响到灌丛沙堆的形成和发育。因此,油蒿灌丛逐渐退化的过程,是灌丛沙堆逐渐演化的过程,也是干旱、半干旱区微地形塑造和景观逐渐变化的过程。

本文引用格式

赵洋 , 张志山 , 陈永乐 , 徐冰鑫 , 陈栋 . 油蒿(Artemisia ordosica)退化阶段对灌丛沙堆形态的影响[J]. 中国沙漠, 2015 , 35(5) : 1136 -1140 . DOI: 10.7522/j.issn.1000-694X.2014.00136

Abstract

The influence of Artemisia ordosica in different degradation stages on morphology of nebkhas remains unknown. A quantitative survey of diameter, height, angle, slope length, area and volume of A.ordosica nebkhas in different degradation stages was carried at a sand-fixed area revegetated in 1990 in the Tengger Desert. The results showed that height and volume of nebkhas formed by semi-dead A.ordosica ramets were significantly higher than those formed by reproductive and dead ramets. The heights of nebkhas formed by reproductive, semi-dead and dead ramets were 4.8 cm, 21.0 cm and 12.4 cm, and the corresponding volumes were 0.031 m3, 0.159 m3 and 0.109 m3 and the slope angles were 3.5-7.8, 32-36 and 16-26, respectively. Change in individual characteristics and subsequent airflow variation affected on morphology of nebkhas, and A.ordosica in different degradation stages played significant impact on formation and growth of nebkhas. Therefore, the evolutive processes of nebkhas, microtopography formation and surface landscape in arid and semi-arid regions were along with change in A.ordosica morphology.

参考文献

[1] Nickling W G,Wolfe S A.The morphology and origin of nabkhas,region of Mopti,Mali,West Africa[J].Journal of Arid Environments,1994,28:13-30.
[2] Langford R P.Nabkha (coppice dune) fields of south-central New Mexico,USA[J].Journal of Arid Environments,2000,46:25-41.
[3] Tengberg A,Chen D.Acomparative analysis of nebkhasin central Tunisia and northern BurkinaFaso[J].Geomorphology,1998,22:181-192
[4] Du J,Yan P,Dong Y.The progress and prospects of nebkhas in arid areas[J].Journal of Geographical Sciences,2010,20:712-728.
[5] Zhang P J,Yang J,Song B Y,et al.Spatial heterogeneity of soil resources of Caragana tibetica community[J].Journal of Plant Ecology,2009,33:338-346.
[6] Yang H T,Li X R,Liu L C,et al.Soil water repellency and influencing factors of Nitraria tangutorun nebkhas at different succession stages[J].Journal of Arid Land,2014,6:300-310.
[7] Hesp P A,McLachlan A.Morphology,dynamics,ecology and fauna of Arctotheca populifolia and Gazania rigens nabkha dunes[J].Journal of Arid Environments,2000,44:155-172.
[8] El-Bana M I,Nijs I,Khedr A A.The importance of phytogenic mounds (Nebkhas) for restoration of arid degraded rangelands in northern Sinai[J].Restoration Ecology,2003,11:317-324.
[9] 董治宝,陈渭南,董光荣,等.植被对风沙土风蚀作用的影响[J].环境科学学报,1996,16(4):437-443
[10] Li X R.Influence of variation of soil spatial heterogeneity on vegetation restoration[J].Science in China:SeriesD Earth Sciences,2005,48:2020-2031.
[11] 冯丽,张景光,张志山,等.沙坡头人工固沙区油蒿繁殖分配的研究[J].中国沙漠,2008,28(3):473-477.
[12] 张萍,哈斯,吴霞,等.单个油蒿灌丛沙堆气流结构的野外观测研究[J].应用基础与工程科学学报,2013,21(5):881-889.
[13] 杜建会,严平,展秀丽,等.民勤绿洲白刺灌丛沙堆不同演化阶段表面抗蚀性及其影响因素[J].应用生态学报,2008,19(4):763-768.
[14] Pool M R,Pool S K,Parvaneh I,et al.Nebkhas of Salvadora persica and their effect on the degradation and survival of Prosopis cineraria,Tamarix aphylla,and Capparis decidua trees and shrubs[J].Flora-Morphology,Distribution,Functional Ecology of Plants,2013,208:502-507.
[15] 张媛媛.内蒙古局原锦鸡儿属植物灌丛沙堆的初步研究[D].天津:天津师范大学,2009.
[16] 韩磊,张媛媛,马成仓,等.狭叶锦鸡儿(Caragana stenophylla)灌丛沙堆形态发育特征及固沙能力[J].中国沙漠,2013,33(5):1305-1309.
[17] Mckee E D.Sediment structure in dunes of the Namib desert,South West Africa[J].Geological Society of America Special Paper,1982,188:48-49.
[18] Zhang P,Yang J,Zhao L,et al.Effect of Caragana tibetica nebkhas on sand entrapment and fertile islands in steppe desert ecotones on the Inner Mongolia Plateau,China[J].Plant and Soil,2011,347:79-90.
文章导航

/