骆驼刺幼苗生长特性对不同地下水埋深的响应

生态学杂志

骆驼刺幼苗生长特性对不同地下水埋深的响应

刘波^1,2,3;曾凡江^1,3;郭海峰^1,2,3;曾杰^1,2,3 

¹中国科学院新疆生态与地理研究所, 乌鲁木齐 830011; ²中国科学院研究生院, 北京 100049; ³新疆策勒荒漠草地生态系统国家野外科学观测研究站，新疆策勒 848300

收稿日期:2008-07-11 修回日期:1900-01-01 出版日期:2009-02-10 发布日期:2009-02-10

Effects of groundwater table on growth characteristics of Alhagi sparsifolia Shap. seedlings.

LIU Bo^1,2,3;ZENG Fan-jiang^1,3;GUO Hai-feng^1,2,3;ZENG Jie^1,2,3

¹Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China;²Graduate University of Chinese Academy of Sciences, Beijing 100049, China;³Cele National Field Science Observation and Research Station of Desert Grassland Ecosystem, Cele 848300, Xinjiang, China

Received:2008-07-11 Revised:1900-01-01 Online:2009-02-10 Published:2009-02-10

摘要/Abstract

摘要： 在塔克拉玛干沙漠南缘策勒绿洲，对人工控制地下水埋深条件下的骆驼刺幼苗地上和地下部分的生长特性进行了一个生长季的调查。结果表明：1)幼苗的株高、分枝数、冠幅与不同地下水埋深之间存在较好的相关性，不同地下水埋深下幼苗叶片数的波动较大;2)生长在距地下水埋深为2.5和2.0 m及1.5和1.0 m条件下的骆驼刺幼苗的基径变化没有显著差异(P>0.05);3)地下水埋深对骆驼刺幼苗根系的垂直根长的影响显著(P<0.01）;4)不同土壤深度的根生物量、根质量密度、比根长、根表面积对地下水埋深变化的响应也有显著差异(P<0.05)。

关键词: 小菜蛾, 菜蛾绒茧蜂, 菜蛾啮小蜂, 种间相互作用

Abstract: A one-growth-season investigation on the growth characteristics of Alhagi sparsifolia Shap. seedlings under controlled groundwater tables was conducted in the Qira oasis in southern margin of Taklamakan Desert. The results indicated that 1) the plant height, branch number, and canopy breadth of the seedlings had good correlations with groundwater table, while leaf number had a larger fluctuation under different groundwater tables; 2) there was no significant difference in the basal stem under groundwater table of 25, 20, 15, and 10 m (P>005); 3) the vertical length of root was significantly affected by groundwater table (P<001); and 4) the root biomass, specific root length, and root surface area at different soil depths differed significantly under different groundwater tables (P<005).

Key words: Plutella xylostella, Cotesia plutellae, Oomyzus sokolowskii, Interspecific interaction

刘波;曾凡江;郭海峰;曾杰 . 骆驼刺幼苗生长特性对不同地下水埋深的响应[J]. 生态学杂志.

LIU Bo^1,2,3;ZENG Fan-jiang^1,3;GUO Hai-feng^1,2,3;ZENG Jie^1,2,3. Effects of groundwater table on growth characteristics of Alhagi sparsifolia Shap. seedlings.[J]. cje.

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