Ecogeography of Japanese beech (Fagus crenata Blume) in the Pacific side of eastern Japan and its conservation

日本海滩生态学（Fagus crenata Blume），日本东部太平洋地区（Yamizo Mts.，Abukuma Mts.和Kitakami Mts.。我在学习。日本海滩在该地区分布的数据库是以187种规格、243种文学、28种来自研究人员和15种因特网主页的个人通信为基础构建的。在该地区的69个地点，树叶样品和标本从188个海滩收集。对森林结构及其物种组成的实地研究已在45个地点进行。日本海滩在该地区的广泛分布是明确的，并从水平和纵向方面查看。对Kira的温暖指数的较低水平海滩分布量的对应量， WI=90（C·月），冷指数， CI=-10（C·月），最冷月份的平均温度，1月， +1 C，也对常青树的较高水平的对应量，如常青橡树。在该地区的内陆部分，托里亚什 ... More 我和Torinoko Mts，日本海滩在温暖地区的独立分布是可见的。日本的独特beech是由各种决定性物种组成的混合森林的组成部分（另一种beech、Fagus日本、决定性和常青的Quercus spp.）Carpinus spp等。和一些conifers （Abies firma和Pious Densiflora）在较低的地区的优势，但增加了它的主导地位，增加了该地区较高的优势，并成为森林中最主要的物种。包括日本海滩在内的自然森林的养护状况已达到最高水平，并对日本海滩在该地区的养护作出了有效的反措施。Pollen分析是为从海滩森林下收集的表面土壤收集的样本而制作的，以及从Hinuma Moor收集的沉积物，位于该区域的南部最大部分。对海滩森林保护的考虑也是从该地区的迁移历史的视点中产生的。Less（低）

Ecogeography of Japanese beech (Fagus crenata Blume) in the Pacific side of eastern Japan (Yamizo Mts., Abukuma Mts.and Kitakami Mts.) was studied. Database on the distribution of Japanese beech in the area was constructed on the basis of 187 specimens,243 literatures,28 personal communications from researchers and 15 internet homepages. In 69 locations in the area, leaf samples and specimens were collected from 188 beeches. The field research on forest structure and its species composition was carried out in 45 locations. The extensive distribution of Japanese beech in the area was clarified, viewed both from horizontal and longitudinal aspects. The lower limit of longitudinal distribution of beech corresponds to the line where Kira's Warmth Index, WI=90(C・month), Cold Index, CI=-10(C・month), mean temperature of the coldest month, January, +1C, the line also corresponding to the upper limit of evergreen broad-leaved trees such as evergreen oaks. In the inland part of the area, Toriash … More i Mts.and Torinoko Mts., relict distribution of Japanese beech in the warmer area was observed. Japanese beech occurred as a component of mixed forests composed of various deciduous species (another beech, Fagus japonica, deciduous and evergreen Quercus spp., Carpinus spp.etc.) and some conifers (Abies firma and Pious densiflora) in the lower altitudes of the area, but increased its dominance with the increase of the altitudes, and became the most dominant species of the forest in the higher altitudes of the area. The conservation status of natural forests including Japanese beech in the area was summarized, and the effective countermeasures for the conservation of Japanese beech in the area were considered. Pollen analysis was made for samples collected from surface soil under beech forests in the area, and for sediments collected from Hinuma moor located on the southernmost part of the area. Consideration to the conservation of beech forests was also made from the viewpoint of vegetation history of the area. Less