中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 浑善达克沙地榆树疏林沙地榆空间分异特征研究 内蒙古林业科技 2013,39 (1) 12-16
Position: Home > Articles > Study on Spatial Differentiation Characteristics of Ulmus pumila L.var. sabulosa Open Forest in Hunshandake Sandy Land Journal of Inner Mongolia Forestry Science and Technology 2013,39 (1) 12-16

浑善达克沙地榆树疏林沙地榆空间分异特征研究

作  者：
苏楞高娃;王晓江;田桂泉
单  位：
内蒙古师范大学生命科学与技术学院;内蒙古自治区林业科学研究院
关键词：
沙地榆;生长指标;年龄结构;空间分异
摘  要：
通过对浑善达克沙地榆树疏林由西向东、南向北典型8个样地沙地榆个体生长指标进行调查,研究了该地区沙地榆个体生长指标和种群年龄级的空间分异规律。结果表明:随着沙地的地理位置由西向东、由南向北沙地榆株高、胸径、冠幅平均值逐渐下降,沙地榆在西南部个体较大,东北部个体逐渐变细小,与沙地榆自然更新有较大关系;沙地榆树疏林8个不同地区沙地榆年龄结构呈衰退型种群,但不同地区所占的主要年龄级不同;8个样地中中部样地4有X1年龄级(幼苗)的更新,靠近东部样地6和南部样地8缺失幼苗和幼树;整体上X3、X4、X5成熟龄级沙地榆株数在60%～80%之间龄林,X1、X7、X8、X9、X10年龄级最少,甚至缺失。
译  名：
Study on Spatial Differentiation Characteristics of Ulmus pumila L.var. sabulosa Open Forest in Hunshandake Sandy Land
作  者：
Sulenggaowa1,WANG Xiao-jiang2,TIAN Gui-quan1(1.College of Life Science and Technology,Inner Mongolia Normal University,Hohhot 010020,China;2.Inner Mongolia Academy of Forestry Science,Hohhot 010010,China)
关键词：
Ulmus pumila L.var.sabulosa;growth index;age structure;spatial differentiation
摘  要：
Based on the investigation on individual growth index of Ulmus pumila in eight typical plots from west to east and south to north in Ulmus pumila open forest in Hunshandake Sandy Land,the spatial differentiation of individual growth index and population age-grading of Ulmus pumila have been studied.The results show that with the change of geographical location of the sand from west to east and south to north,the average individual height,diameter at breast height and crown width of Ulmus pimila decline at an exponential equation.It is indicated that Ulmus pumila is a larger individual in the southwest,and the individuals gradually become smaller in the northeast.All the age structures of Ulmus pumila in eight different plots are degenerating form,but different regions share a different age grade.X1 age grade only distributes in the central plots,X1 and X2 are deleted in the adjacent east and south plots,X3,X4,X5 age grade of Ulmus pumila are between 60% and 80% in all the plots,and X1,X7,X8,X9,X10 age grade are lack or deleted.

相似文章

导出引用
计量
文章访问数: 9
HTML全文浏览量: 0
PDF下载量: 1

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46