干旱区生态环境知识资源中心(Arid): 放牧对伊犁绢蒿种群有性繁殖特性的影响

Arid

	放牧对伊犁绢蒿种群有性繁殖特性的影响
其他题名	Sexual productive characteristic of Seriphidium transiliense community under grazing conditions
	魏鹏; 安沙舟; 孙宗玖; 荀其蕾
来源期刊	草业科学
ISSN	1001-0629
出版年	2013
卷号	30 期号:12 页码:2054-2058
中文摘要	以蒿类荒漠草地建群种伊犁绢蒿(Seriphidium transiliense)为对象,研究了放牧对伊犁绢蒿的构件数量特征、形态、生物量及其分配格局的影响。结果表明,与封育相比,放牧条件下伊犁绢蒿个体植株高度下降,丛幅径减小,地上生物量(茎、叶、花/种子)下降;放牧促进伊犁绢蒿生物量向茎的分配比例增加,减少了向叶、花/种子的分配,生物量分配趋势为茎>叶>花/种子;伊犁绢蒿种群结实率、单株结实率、花序长、小花数都呈下降趋势。
英文摘要	A study was conducted to investigate the influence of grazing on representative plant Seriphidiumt ransiliense in Xinjiang desert grassland. The number of components of S. transiliense and other characteristics such as morphology, biomass and their distribution pattern under grazing condition were analyzed. The results showed that individual plant height, bundle of diameter and the ground biomass[including stem, leaf, and flower(seeds)]of S. transiliense decreased under grazing condition compared with the enclosed condition. The distribution ration of stem biomass increased and the distribution ration of leaf and flower(seeds)biomass decreased under grazing condition. The ratio of stem biomass was higher, which induced to lower ratio of flower seeds biomass. The seed setting rate, seed rate per plant, spike length, number of florets of S. transiliense decreased with condition.
中文关键词	放牧 ; 荒漠草地 ; 伊犁绢蒿 ; 繁殖分配
英文关键词	grazing desert rangeland Seriphidium transiliense reproductive allocation
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5068720
来源机构	新疆农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/229281
作者单位	新疆农业大学草业与环境科学学院, 新疆草地资源与生态重点实验室, 乌鲁木齐, 新疆 830052, 中国
推荐引用方式 GB/T 7714	魏鹏,安沙舟,孙宗玖,等. 放牧对伊犁绢蒿种群有性繁殖特性的影响[J]. 新疆农业大学,2013,30(12):2054-2058.
APA	魏鹏,安沙舟,孙宗玖,&荀其蕾.(2013).放牧对伊犁绢蒿种群有性繁殖特性的影响.草业科学,30(12),2054-2058.
MLA	魏鹏,et al."放牧对伊犁绢蒿种群有性繁殖特性的影响".草业科学 30.12(2013):2054-2058.