干旱区生态环境知识资源中心(Arid): 古尔班通古特沙漠四种草本植物不同生长期C、N、P化学计量比的动态变化分析

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	古尔班通古特沙漠四种草本植物不同生长期C、N、P化学计量比的动态变化分析
其他题名	Dynamic analysis of stoichiometric ratios of C, N, and P during different growth periods in four herbaceous plants from Gurbantunggut Desert
	郭浩; 庄伟伟; 李进
来源期刊	植物科学学报
ISSN	2095-0837
出版年	2019
卷号	37 期号:3 页码:356-366
中文摘要	以古尔班通古特沙漠地区广泛分布的4种荒漠草本植物沙蓬(Agriophyllum squarrosum(L.) Moq.)、雾冰藜(Bassia dasyphylla(Fisch. et Mey.) O. Kuntze)、角果藜(Ceratocarpus arenarius L.)和碱蓬(Suaeda glauca(Bge.) Bge.)为对象,对他们在不同生长期的C、N、P含量及计量比的动态变化进行研究.结果显示:4种植物的C、N、P含量以及C∶ N、C∶ P、N∶ P在整个生长期的变化趋势不同,不同生长期各个指标的变异系数在物种间存在明显差异;4种植物的C、N、P含量及计量比的季节性变异分析结果表明,N、P含量及C∶ N、N∶ P的季节性变异幅度较大,相反,C含量和C∶ P的变异幅度较小;4种植物C含量和C∶ P由季节变化所引起的变异系数范围分别为2.43% ~ 15.80%和6.77% ~ 18.67%,而N、P含量和C∶ N、N∶ P的变异系数范围分别为21.26% ~ 34.38%、11.18% ~ 30.26%、18.52% ~ 27.11%、14.90% ~ 25.91%;整个生长季内,4种植物C、N、P含量及计量比的变异系数依次为:N(30.00%) > C∶ N(22.87%) > N∶ P(20.12%) > P(17.76%) > C∶ P(11.72%) > C(9.02%).研究结果表明4种植物在不同生长周期的C、N、P含量及计量比的变化规律与他们的生长周期和植物种类存在显著相关性.
英文摘要	To study the dynamic changes in C, N, and P content and stoichiometric ratios in desert plants during different growing periods, four desert herbaceous plants, (i.e., Agriophyllum squarrosum (L.) Moq., Bassia dasyphylla (Fisch.et Mey.) O. Kuntze, Ceratocarpus arenarius L., and Suaeda glauca (Bge.) Bge.), widely distributed in Gurbantunggut Desert, were selected. Results indicated that: Seasonal dynamics of leaf C, N, and P content and C∶N, C∶P, and N∶P mass ratios in the four herbaceous plants showed different trends throughout the whole growth period. The variation coefficients of each index during the different growth periods also demonstrated significant differences among species. Seasonal variation analysis of leaf C, N, and P content and their stoichiometric ratios showed that seasonal variations in N and P content and C∶N and N∶P ratios were larger, whereas variations in C and C∶P were smaller. The seasonal variation coefficients of C and C∶P in the four herbaceous species ranged from 2.43% to 15.80% and from 6.77% to 18.67%, respectively. Moreover, N and P content as well as the C∶N and N∶P ratios ranged from 21.26% - 34.38%, 11.18% - 30.26%, 18.52% - 27.11%, and 14.90% - 25.91%, respectively. The variation coefficients of C, N, and P content and stoichiometric ratios in the four herbaceous plants during the entire growth period were sorted as: N (30.00%) > C∶N (22.87%) > N∶P (20.12%) > P (17.76%) > C∶P (11.72%) > C (9.02%). Overall, results showed that changes in C, N, and P content and stoichiometric ratios were significantly correlated with their growth periods and plant species.
中文关键词	荒漠植物 ; 生态化学计量学 ; 季节变化 ; 古尔班通古特沙漠
英文关键词	Eremophytes Ecological stoichiometry Seasonal variation Gurbantunggut Desert
语种	中文
国家	中国
收录类别	CSCD
WOS类目	FORESTRY
WOS研究方向	Forestry
CSCD记录号	CSCD:6533842
来源机构	新疆师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/239704
作者单位	新疆师范大学生命科学学院,干旱区植物逆境生物学实验室, 新疆特殊环境物种保护与调控生物学实验室, 乌鲁木齐, 新疆 830054, 中国
推荐引用方式 GB/T 7714	郭浩,庄伟伟,李进. 古尔班通古特沙漠四种草本植物不同生长期C、N、P化学计量比的动态变化分析[J]. 新疆师范大学,2019,37(3):356-366.
APA	郭浩,庄伟伟,&李进.(2019).古尔班通古特沙漠四种草本植物不同生长期C、N、P化学计量比的动态变化分析.植物科学学报,37(3),356-366.
MLA	郭浩,et al."古尔班通古特沙漠四种草本植物不同生长期C、N、P化学计量比的动态变化分析".植物科学学报 37.3(2019):356-366.