文献类型：期刊文献

中文题名：绿洲外围沙冬青群落多种群多规模格局特点研究

英文题名：Analysis on Multi-Species and Multi-Scale Pattern of Ammopiptanthus mongolicus Communities Outside Oases

作者：李慧卿[1] 李慧勇[2] 张景波[3] 赵秀莲[1] 江泽平[1]

第一作者：李慧卿

机构：[1]中国林业科学研究院林业研究所国家林业局林木培育重点实验室;[2]山西省水利科学研究所;[3]中国林业科学研究院沙漠林业实验中心

年份：2006

卷号：42

期号：5

起止页码：1-5

中文期刊名：林业科学

外文期刊名：Scientia Silvae Sinicae

收录：CSTPCD;;Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金："十五"国家科技攻关计划专题:"沿黄灌区绿洲型防沙治沙综合技术体系研究"(2002BA517A09-2)。

语种：中文

中文关键词：沙冬青;群落;多种群多规模格局;贡献率;种间关系

外文关键词：Ammopiptanthus mongolicus; community; multi-species and multi-scale pattern; contribution; species relations

分类号：S718.5

摘要：以乌兰布和沙漠东北缘黄灌区绿洲以及井灌区绿洲外围天然沙冬青群落为研究对象,采用VerHoef修正的多规模排序法和Dale提出的格局强度及多种群格局一致性指标等分析方法,分析两个群落内的多种群多规模格局、多规模格局内植物种的贡献率及其组合、格局强度以及格局一致性,探讨两种灌溉模式绿洲外围植被的空间分布格局特点、不同格局规模上植物种间关系,为该区人工防治荒漠化及植被恢复提供依据。研究结果表明:黄灌区绿洲外围沙冬青群落格局规模较小,而井灌区绿洲外围沙冬青群落格局规模相对较大;两个群落都以多种群灌木格局为主;黄灌区绿洲外围沙冬青群落整体格局强度相对较大,但格局一致性却相对较低。而井灌区则正好相反,整体格局强度相对较小,但格局一致性却较高。
Ulanbuhe desert is one of the sites that supply much material for dust storms in north China. Ammopiptanthus mongolicus is endangered which is the only evergreen broadleaf species in sand area of north west China and is also good fixing sand plant. This paper contrasts two natural A. mongolicus communities outside the oases on the north west of Ulanbuhe desert that are irrigated by Huanghe River and well water respectively, using the methods of multi-scale ordination which Ver Hoef et al. （1989） have revised and the pattern intensity and pattern consistency index which Dale et al. （1995） put forward. The aim of this paper is to explore the vegetation structure characters and species relations on different scales outside the oases and provide the basis data for combating desertification and vegetation restoration in the area. The results showed, the pattern scale of A. mongolicus community outside the oasis irrigated by the Yellow River is much smaller than that outside the oasis irrigated by well water. Most patterns of the two communities are multi-species shrub patterns. And what more, the pattern intensity is larger and the pattern consistency index is smaller in the community outside the oasis irrigated by the Yellow River than that outside the oasis irrigated by well water.