摘要
利用植物群落排序、数量分类和环境解释的理论与方法，研究了北京东灵山植被的梯度分析和数量分类。结果表明： 东灵山植物群落，在空间地理分布上很有规律，这种分布与生态梯度之间具有十分密切的关系。生态梯度中起主导作用的是温度和水分（含土壤肥力梯度）。在水分梯度上，中山带大致有：较耐旱的三桠绣线菊（Ｓｐｉｒａｅａ ｔｒｉｌｏｂａｔａ）－荆条（Ｖｉｔｅｘ ｎｅｇｕｎｄｏ）灌丛－山杏（Ｐｒｕｎｕｓ ｓｉｂｉｒｉｃａ） 灌丛－人工油松（Ｐｉｎｕｓ ｔａｂｕｌａｅｆｏｒｍ ｉｓ） 林－辽东栎（Ｑｕｅｒｃｕｓｌｉａｏｔｕｎｇｅｎｓｉｓ ）林－杂木林－黑桦（Ｂｅｔｕｌａ ｄａｈｕｒｉｃａ）林，亚高山带则有草甸－锦鸡儿（Ｃａｒａｇａｎａｊｕｂａｔａ）灌丛－硕桦（Ｂｅｔｕｌａ ｃｏｓｔａｔａ）林排列分布在由旱－湿的环境梯度上；在热量梯度上，从暖至冷，大致排列有：人工油松林－荆条灌丛－辽东栎林－黑桦林－杂木林－三桠绣线菊灌丛－山杏灌丛－人工落叶松林－白桦（Ｂ．ｐｌａｔｙｐｈｙｌｌａ）林－硕桦林－亚高山草甸－锦鸡儿灌丛。用图示的方法，确定东灵山植被大致有４ 个极点和２ 个中心。４ 个极点是：干冷条件下的亚高山锦鸡儿灌丛，干暖条件下的中低山荆条灌丛，湿?
Basing on the detrended corespendence analysis ( DCA) , two way indicative species analysis (TWINSPAN) and environmental interpretation mathematical models and warm temperate deciduous broad leaf forest community samples collected from Dongling mountain in Beijing, primary vegetation types and ecological gradients, and their quantitative relations with environmental factors of the region were studied. The data from 26 climate stations in this region were used to get the multivarient regression for estimating the climate information of various warm temperate deciduous broad leaf forest according to longitude, latitude and altitude of each sample plot. It is shown that the vegetation types of warm temperate deciduous broad leaf forest and their distribution are mainly determined by the thermal and moisture ( include soil fertility) gradients. In moisture gradients,in mid montane from drier to moisture there are Spiraea trilobata shrubland Vitex negundo shrubland Prunus sibirica shrubland manmade Pinus tabulaeformis forest Quercus liaotungensis forest mixed deciduous broad leaf forest Betula dahurica forest; In subalpine from drier to mois ture there are meadow Caragana jubata shrubland Betula costata forest.In thermal gradients, from warm to cold there are manmade Pinus tabulaeformis forest Vitex negundo shrubland Quercus liaotungensis forest Betula dahurica forest mixed deciduous broad leaf forest Spiraea trilobata shrubland Prunus siberica shrubland manmade Larix princips forest Betula platyphylla forest B.costata forest subalpine meadow Caragana jubata shrubland .Vegetation of Dongling mountain exists 4 polars and 2 centers, 4 polars are subalpine Caragana jubata shrubland ( drier and cold habitat),mid low montane Vitex negundo shrubland (drier and warm habitat),subalpine B. costata forest (moisture and cold habitat) and mid montane B.dahurica forest (moisture and w
关键词
东灵山
植物群落
排序
分类
Dongling Mountain
Plant community
DCA ordination
TWINSPAN classification
Environmental interpretation
Plant geographics distribution
Mathematical model
