干旱区生态环境知识资源中心(Arid): 火烧和砍伐对疏叶骆驼刺叶片生态化学计量特征的影响

Arid

	火烧和砍伐对疏叶骆驼刺叶片生态化学计量特征的影响
其他题名	Effects of Burning and Cutting on Leaf Ecological Stoichiometry Characteristics of Alhagi sparsifolia
	赵生龙; 曾凡江; 张波; 李尝君; 刘波; 高欢欢
来源期刊	水土保持研究
ISSN	1005-3409
出版年	2017
卷号	24 期号:1 页码:84-89
中文摘要	以塔克拉玛干沙漠南缘绿洲-沙漠过渡带的优势植物---疏叶骆驼刺为研究对象,设置春季砍伐、春季火烧、秋季砍伐和对照处理,研究了干扰对疏叶骆驼刺叶片N,P,K生态化学计量特征的影响。结果表明:春伐和火烧处理下,疏叶骆驼刺叶片N,P和K含量随季节变化显著降低,而N:P无明显差异;秋伐处理下,叶片N含量及N:P先降低后上升,K含量先升高后降低,P含量则无明显差异。不同干扰下疏叶骆驼刺叶片N,P,K含量及其N:P的季节变异分析显示,火烧处理下其N,P,K季节变异最大,分别为:22.32%,20.43%,28.27%;春伐处理下,N及N:P季节变异最小,分别为16.29%,8.67%;秋伐处理下P季节变异最小,为8.64%;对照处理下,K季节变异最小,为8.11%, N:P季节变异最大,为24.26%。生长季节与干扰处理对疏叶骆驼刺叶片N,P,K含量及其N:P影响的方差分析显示,疏叶骆驼刺叶片N及N:P主要受生长季节与干扰的交互作用影响,而P及K含量主要受生长季节的影响。
英文摘要	Taking the dominant plant Alhagi sparsifolia at the southern fringe of Taklimakan Desert as sample, we examined the effects of different disturbances treatments(cutting in spring,cutting in fall and burning in spring)on leaf N,P and K ecological stoichiometry characteristics.The results showed that N,P and K concentrations of Alhagi sparsifolialeaf were significantly lower under cutting in spring and burning treatments along with the seasonal variation,while N:P mass ratio was no obvious variation.The N concentration and N:P mass ratio of leaf first decreased and then increased,and K concentration first increased then decreased under cutting in fall treatments,at the same time,P concentration was no obvious variation.Based on variation analysis among different seasons within different treatments of Alhagi sparsifolialeaf,N,P,K concentrations were more seasonal dynamic under the treatment of burning in spring than the other treatments, which were 22.32%,20.43%,28.27%,respectively,seasonal dynamics of N concentration and N:P mass ratio under treatment of cutting in spring were less than the other treatments,which were 16.29%,8.67%,respectively.P concentration under the treatment of cutting in fall was less seasonal dynamic than the other treatments,which was 8.64%.K concentration was less seasonal dynamic and in N:P mass ratio was more seasonal dynamics under control treatment than the other treatments,which were 8.11%,24.26%,respectively.With growth stage and treatments as independent factors,factorial analysis of variation for N,P and K concentrations and N:P mass ratio showed that Alhagi sparsifolia leaf N concentration and N:P mass ratio were mainly determined by an interaction between growth stage and disturbance,while leaf P and K concentrations were mainly determined by growth stage of plant.
中文关键词	疏叶骆驼刺 ; 砍伐 ; 火烧 ; 季节变化
英文关键词	N P K Alhagi sparsifolia cutting burning N P K dynamic variation
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:5930006
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236694
作者单位	中国科学院新疆生态与地理研究所, 荒漠与绿洲生态国家重点实验室;;新疆策勒荒漠草地生态系统国家野外科学观测试验站;;中国科学院干旱区生物地理与生物资源重点实验室, 乌鲁木齐, 新疆 830011, 中国
推荐引用方式 GB/T 7714	赵生龙,曾凡江,张波,等. 火烧和砍伐对疏叶骆驼刺叶片生态化学计量特征的影响[J]. 中国科学院新疆生态与地理研究所,2017,24(1):84-89.
APA	赵生龙,曾凡江,张波,李尝君,刘波,&高欢欢.(2017).火烧和砍伐对疏叶骆驼刺叶片生态化学计量特征的影响.水土保持研究,24(1),84-89.
MLA	赵生龙,et al."火烧和砍伐对疏叶骆驼刺叶片生态化学计量特征的影响".水土保持研究 24.1(2017):84-89.