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The species diversity of Dipentodon sinicus communities in Yushe National Forest Park of Guizhou province was studied based on the quadrate method. The results showed that Rosaceae, Ericaceae, Betulaceae, Fagaceae, Theaceae, Lauraceae, Caprifoliaceae, Cornaceae were the dominant families in D. sinicus communities of Yushe National Forest Park. In the 10 sample plots, there were 8 which were absolutely dominated with D. sinicus population, the importance value came up to 135.69 on average, and it was far higher than the others. For D. sinicus communities, the abundance index (2.847), Simpson index (0.601), Shannon-Wiener index (1.523), probability of inter-specific encounter (0.601) and species evenness (0.569) of the tree layer were lower than those of the shrub layer (5.580, 0.830, 2.377, 0.829, 0.672, respectively) on the whole. It markedly showed a species diversity characteristic of the mixed broadleaved evergreen and deciduous forest in middle subtropics. In the 10 sample plots, the species diversity level of Q1 was the highest, followed by Q3, Q5 and Q6 was the lowest.

摘要运用样方法对贵州省玉舍国家级森林公园稀有保护植物十齿花群落的物种多样性进行了研究,结果表明:玉舍国家级森林公园十齿花群落以蔷薇科、杜鹃花科、壳斗科、桦木科、山茶科、樟科、忍冬科、山茱萸科等为优势科;10个样地中有8个样地以十齿花种群占绝对优势,其平均重要值高达135.69,远远高于其它种群;十齿花群落乔木层物种丰富度为2.847、Simpson指数为0.601、Shannon-Wiener指数为1.523、种间相遇机率为0.601、均匀度指数为0.569,总体上均小于灌木层(分别为:5.580、0.830、2.377、0.829、0.672),表现为较明显的亚热带常绿落叶阔叶混交林的物种多样性特征。10个样地中,Q1的物种多样性程度最高,Q3次之,Q5和Q6最小,多样性程度最低,10个样地的物种多样性排序为Q1>Q3>Q9>Q7>Q2>Q4>Q10>Q8>Q5>Q6。

Results of sampling showed that the typical evergreen broad-leaved forest of Mt. Jiulianshan consisted mainly of subtropical families and genera with dominant families including Fagaceae, Lauraceae, Camelliaceae, Styracaceae, Ericaceae, and Magnoliaceae.

群落主要由热带、亚热带科属组成,优势科为壳斗科Fagaceae,樟科Lauraceae,山茶科Camelliaceae,安息香科Styracaceae,杜鹃花科Ericaceae和木兰科Magnoliaceae等科,优势树种以相应的优势科属树种为主。

Molecular data place Empetrum and its relatives firmly within the Ericaceae, and in particular within the subfamily Ericoideae, in agreement with phytochemical and palynological data, and there they are best recognized as a separate tribe.

分子证据支持把在Empetrum 和它的亲缘类群放在杜鹃花科Ericaceae内,尤其是Ericoideae亚科内,这与植物化学和孢粉学证据相一致,它们最好作为一个独立的族。

The geographical distribution of Andromedaoideae, Gaultherioideae and Arbutoideae of Ericaceae of China in relation to other area.

中国杜鹃花科的__木亚科、白珠树亚科、北极果亚科地理分布及与其他地区的关系。

He geographical distribution of Andromedaoideae, Gaultherioideae and Arbutoideae of Ericaceae of China in relation to other area.

itle 中国杜鹃花科的__木亚科、白珠树亚科、北极果亚科地理分布及与其他地区的关系。

A North American origin was assigned to the base of the Gaultherieae. It positively supports the boreotropics hypothesis for the origin of the Ericaceae.

结果表明白珠树族可能起源于温带北美洲,这为杜鹃花科及其科下阶元起源地的&boreotropics&假设提供了有利的证据。

The dominant families included Lauraceae, Magnoliaceae, Fagaceae, Theaceae and Ericaceae.

其中优势科主要有樟科、木兰科、壳斗科、山茶科和杜鹃花科。

Background and objective: Rhomotoxin, the active constituent of Rhododendron molle belonging to Ericaceae, has the effects of decreasing blood pressure and slowing heart rate. These effects can exacerbate and remain 0.5-1 hour after drug withdrawal, which is prone to cause lower blood pressure even shock.

背景与目的八厘麻毒素(rhomotoxin,RTX)系从植物杜鹃花科羊踯躅成熟果实中提取的有效成份,具有较强的降压、减慢心率作用,但其降压作用在停药后0.5-1小时仍继续加深,易引起降压过度而导致休克,同时血中浓度检测困难,不易监控,临床上应用较难掌握。

The tribe Gaultherieae, consisting of six genera (ca. 250 species), forms a monophyletic group within subfamily Vaccinioideae of the Ericaceae.

白珠树族是杜鹃花科越桔亚科的一个单系群,包括6属约250种,呈典型环太平洋分布,主要分布在热带亚洲和热带美洲。

The azalea is an ericaceous plant.

杜鹃花是一种欧石南属植物。

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