干旱区生态环境知识资源中心(Arid): 岷江上游干旱河谷引种番麻的生态适应性及生物量预测模型

Arid

	岷江上游干旱河谷引种番麻的生态适应性及生物量预测模型
其他题名	Growth and allometric biomass equations of introduced Agave americana L. in upper reaches of Mingjiang River
	黎燕琼 1; 郑绍伟 1; 宿以明 1; 龚良春 2; 慕长龙 1
ISSN	1000-0933
出版年	2009
卷号	29 期号:9 页码:4820-4826
中文摘要	以岷江上游干旱河谷地区引种的番麻为研究对象,通过对不同海拔番麻的株高、冠幅、单株叶片数以及萌芽数等生长指标的调查研究结果,了解其在干旱河谷区的生长分布上限,为该地区与类似地区引种该品种相关物种提供理论依据;同时,利用株高等简单生长指标与番麻生物量的关系进行拟合,建立预测方程.通过高度、冠幅、单株叶片数、萌芽数(株/100m~2)等生长指标比较表明,番麻的最适生长区为海拔1400～1500m.在干旱河谷阳坡的生长上限为海拔1800m,往上仅能成活,不能自身繁殖.根据番麻的株高、冠幅、叶片数等简单生长指标与生物量呈显著相关(P＜0.01),分别建立了相应的回归模型,其中地上生物量和单株生物量的最优回归模型R2值均在0.90以上,地下生物量的最优回归模型R2值也在0.75以上.
英文摘要	Agave americana L.,a drought-tolerant plant with high-value of medicinal use,was introduced to the arid valley of the upper reaches of the Mingjiang River in 2000. In order to evaluate it role in vegetation restoration and determine the optimal adaptation range in the area,plant traits such as height,crown diameter,leaf number and sprouts were measured along altitude ranging from 1400m to 2000 m for the purposes of assessing growth conditions and estimating above-and below-ground biomass. It was found that 1400-1500m above sea level is the optimal growing area of Agave americana. The mean height,crown diameter,leaf number and sprouts in this altitude were up to 62.7 cm,0.385 m~2,22 blades,27 buds,which are larger than those in other altitudes. The upper limit of Agave americana is 1800 m and it can only survive but not reproduce above this altitudinal limit. The biomass is significantly correlated with height,crown diameter and leaf number,which can be used for estimating above-and below-ground biomass through established allometric biomass equation.
中文关键词	番麻 ; 生长概况 ; 生物量 ; 函数模型
英文关键词	Agave americana L. growth traits biomass allometric equation
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ECOLOGY ; PLANT SCIENCES
WOS研究方向	Environmental Sciences & Ecology ; Plant Sciences
CSCD记录号	CSCD:3691831
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/224069
作者单位	1.四川省林业科学研究院, 成都, 四川 610081, 中国; 2.四川省阿坝州理县林业局, 理县, 四川 623100, 中国
推荐引用方式 GB/T 7714	黎燕琼,郑绍伟,宿以明,等. 岷江上游干旱河谷引种番麻的生态适应性及生物量预测模型[J],2009,29(9):4820-4826.
APA	黎燕琼,郑绍伟,宿以明,龚良春,&慕长龙.(2009).岷江上游干旱河谷引种番麻的生态适应性及生物量预测模型.,29(9),4820-4826.
MLA	黎燕琼,et al."岷江上游干旱河谷引种番麻的生态适应性及生物量预测模型".29.9(2009):4820-4826.