干旱区生态环境知识资源中心(Arid): 荒漠草原地区冷蒿构件及其动态规律对载畜率的响应

Arid

	荒漠草原地区冷蒿构件及其动态规律对载畜率的响应
其他题名	Response of Artemisia frigida Module to Stocking Rates in the Desert Steppe, Inner Mongolia
	焦树英 1; 韩国栋2 ; 刘俊清 3
ISSN	1673-5021
出版年	2009
卷号	31 期号:4 页码:80-84
中文摘要	采用随机区组试验方法,研究了内蒙占高原荒漠草原地区不同载畜率对冷蒿构件数量特征的影响,结果表明:冷蒿生长时期和载畜率是影响冷蒿构件数量的关键因素,相同载畜率水平下,冷蒿的营养枝密度、不定根密度和匍匐茎长度为生长末期>生长盛期>生长初期,生殖枝8月最多,冷蒿生长盛期和末期,轻牧区的营养枝密度、不定根密度和匍匐茎长度显著增加(P<0.05);同一生长季节生殖枝随载畜率的增大显著下降(P<0.05),极度干旱的2005年没有形成生殖枝,说明干旱也是限制冷蒿生殖生长的关键性因子.荒漠草原地区冷蒿的繁殖格局以营养繁殖为主,占到80%以上,随载畜率的增加.冷蒿的营养枝分化率逐渐增加.
英文摘要	The experiment was conducted in Stipa breviflora desert steppe in Inner Mongolia located in 41°47’17"N, 111°53’46"E, altitude 1450m in 2004. The objectives were to study the influence of different stocking rates on Arternisia frigida module number characteristics with random plot group methods. The results showed that Arternisia frigida module characteristics were changed with grazing season and stocking rates. The density of vegetative shoots and reproductive shoots of Arternisia frigida were increased with the grazing season in 2004, density of reproductive shoots were highest in August. Density of vegetative shoots was highest in light grazed (LG) plot, and gradually decreased with the stocking rates increased, density of reproductive shoots were decreased significantly. Because of less raining, no reproductive shoots occurred in 2005. Adventitious root density and repens length were the same change like density of vegetative shoots. Spacer length was almost no change, but decreased in heavy grazed plot (HG), the result indicated that adventitious root density and repens length were increased with the same time, Artemisia frigida depends on adventitious root to get nutritious matter and live space. With the stocking rates increased, differentiation ratio of vegetative shoots of Arternisia frigida was gradually increased, and the reproductive patter was mostly vegetative propagation which occupy over 80%.
中文关键词	荒漠草原 ; 载畜率 ; 冷蒿 ; 构件
英文关键词	Desert steppe Stocking rates Arternisia frigida Module
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:3630221
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/224488
作者单位	1.山东农业大学资源与环境学院, 泰安, 山东 271018, 中国; 2.内蒙占农业大学生态环境学院, 呼和浩特, 内蒙古 010019, 中国; 3.内蒙古财经学院旅游管理系, 呼和浩特, 内蒙古 010051, 中国
推荐引用方式 GB/T 7714	焦树英,韩国栋,刘俊清. 荒漠草原地区冷蒿构件及其动态规律对载畜率的响应[J],2009,31(4):80-84.
APA	焦树英,韩国栋,&刘俊清.(2009).荒漠草原地区冷蒿构件及其动态规律对载畜率的响应.,31(4),80-84.
MLA	焦树英,et al."荒漠草原地区冷蒿构件及其动态规律对载畜率的响应".31.4(2009):80-84.