干旱区生态环境知识资源中心(Arid): 不同水分条件下疏叶骆驼刺(Alhagi sparifolia)生长及根系分株构型特征

Arid

	不同水分条件下疏叶骆驼刺(Alhagi sparifolia)生长及根系分株构型特征
其他题名	Root Growth and Ramets Architecture Characteristics of Alhagi sparsifoliaunder Different Water Treatments
	张利刚 1; 曾凡江1 ; 袁娜 2; 刘波 1; 罗维成 1; 宋聪 1; 彭守兰 1
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2013
卷号	33 期号:3 页码:717-723
中文摘要	以塔克拉玛干沙漠南缘优势植物种疏叶骆驼刺(Alhagi sparsifolia)为对象,在策勒荒漠草地生态系统国家野外科学观测研究站进行田间试验,对不同水分条件下疏叶骆驼刺幼苗根系生长特征、分株地上部分生长特征、分株根系构型特征进行了研究。结果表明:疏叶骆驼刺幼苗根冠比在不同水分处理之间差异不显著,根系深度随着土壤水分有效性的降低逐渐增加;分株地上部分指标均随土壤水分有效性降低显著减小,除处理B(灌溉量180mm,灌溉1次)和处理C(灌溉量90mm,灌溉2次)之间地上生物量差异不显著外,不同处理之间分株株高、冠幅、地上生物量差异均达到显著水平(p<0.05);不同水分条件下疏叶骆驼刺分株种群密度、分株之间间隔物长度差异显著(p<0.05);随着土壤水分有效性由高到低变化,分株生长格局逐步由"密集型"向"游击型"过渡,分枝角度之间差异不显著,且全部集中在90°左右;通过对分株层土壤水分含量与分株数量的分析发现,二者具有较好的相关性,分株数量随土壤含水量变化呈二次曲线变化。
英文摘要	We chose the dominant plant species Alhagi sparsifolia in the south fringe of the Takelamkan Desert as object,measured and analyzed the effects of different irrigation(A,total 360 mm,twice;B,total 180 mm,once;C,total 180 mm,twice;D,total 0mm)on the characteristics of root growth of seedlings, aboveground part growth of ramets,root architecture of ramets in Qira,Xinjiang,China.The results showed that the root-shoot ratios of A.sparsifoliaseedlings were not significantly different among the four treatments,the root growth depth increased with decreasing soil moisture;the number of the abovegound part of ramets all decreased with increasing soil moisture under different treatments;the plant height, aboveground biomass of ramets under different treatments were significantly different except that aboveground biomass between treatment B and treatment C(p<0.05);the density of ramet population and the spacer between ramets under different treatments were significantly different(p <0.05);ramets growth patterns were from phalanx to guerrilla with decreasing water supply,the branching angle were about 90°,among the four treatments were not significantly different(p>0.05);we found that the soil moisture content of the soil had good correlations with the number of ramets,the number of ramets were in a quadratic curve when the soil moisture content increased.
中文关键词	疏叶骆驼刺(Alhagi sparifolia) ; 克隆生长 ; 分株构型 ; 分株生长格局
英文关键词	Alhagi sparsifolia clonal growth ramets architecture ramets growth patterns
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:4835684
来源机构	中国科学院新疆生态与地理研究所 ; 西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/230606
作者单位	1.中国科学院新疆生态与地理研究所, 新疆策勒荒漠草地生态系统国家野外科学观测研究站, 乌鲁木齐, 新疆 830011, 中国; 2.西北农林科技大学资源环境学院, 杨陵, 陕西 712100, 中国
推荐引用方式 GB/T 7714	张利刚,曾凡江,袁娜,等. 不同水分条件下疏叶骆驼刺(Alhagi sparifolia)生长及根系分株构型特征[J]. 中国科学院新疆生态与地理研究所, 西北农林科技大学,2013,33(3):717-723.
APA	张利刚.,曾凡江.,袁娜.,刘波.,罗维成.,...&彭守兰.(2013).不同水分条件下疏叶骆驼刺(Alhagi sparifolia)生长及根系分株构型特征.中国沙漠,33(3),717-723.
MLA	张利刚,et al."不同水分条件下疏叶骆驼刺(Alhagi sparifolia)生长及根系分株构型特征".中国沙漠 33.3(2013):717-723.