| 广西1:2500000植被图的编制及其说明 |
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| 引用本文： | 何妙光,王献溥.广西1:2500000植被图的编制及其说明[J].植物生态学报,1981,5(4):281-289. |
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| 作者姓名： | 何妙光 王献溥 |
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| 作者单位： | 中国科学院植物研究所
(何妙光)，中国科学院植物研究所(王献溥) |
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| 摘 要： | 本图以现实植被为表现对象，在编制过程中也应用了潜在植被的概念来处理地带性植被类型的残存片断。图例的划分是根据植物群落学的原则，共分三级，个别到四级。第一级根据群落的外貌，第二级是优势成分的生活型，第三级是优势种或标志种(此级相当于群系或群系的结合)，第四级是群落中灌木层的优势种(此级相当于群丛组)。后两级为制图单位。在图斑的概括过程中，采取了三个措施：(1)突出实占面积较大的植被类型，(2)适当夸大地带性植被的图斑，(3)利用符号标志某些面积极小的植被类型。除正式图例44个外，另有附加图例7个，全图概略地反映广西植被地理分布的规律。
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On the Compilation of Vegetation Map of Guangxi (1:2500000) with Reference to Its illustration |
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| He Miaoguang,Wang Huenpu.On the Compilation of Vegetation Map of Guangxi (1:2500000) with Reference to Its illustration[J].Acta Phytoecologica Sinica,1981,5(4):281-289. |
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| Authors: | He Miaoguang Wang Huenpu |
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| Abstract: | This paper briefly explains the principle and method in compiling the vegetation map of Guangxi with the scale of 1:2500000. Here the legend is described as well. At present, areas occupied by the main zonal vegetation type in Guangxi are too small to present on this map. In order to represent them completely, the following ways are adopted. If the same vegetation units are congregate, these areas may be portrayed as pattern by enlargement——combining them together. Otherwise, the separate areas can be indicated by symbols which are still given their normal position in the legend for keeping the later systematic.On the basis of phytocoenological characters, the legend is arranged in three classes, rarely in four. The physiognomy features of vegetation are considered in the first class; the life form of the dominant compositions of phytocoenosis, in the second class; the dominant and characteristic species, in the third; the dominant species in the scrub layer in the fourth. Only the later two classes are revealed on the map. As far as the vegetation classification is concerned, they correspond to the formation or formation combination and association group separately. The cultural vegetation is classified based on the cropping system. Some sorts of the timber forests and economic forests appear frequently and always occupy small areas, so it is impossible to show all of them on the map. In this case symbols have been used to be placed on their principal producing areas. Some relic or significant forests are also expressed by symbols which are included in the supplementary legend. With 44 items in the legend and 7 in supplementary legend, the map shows briefly the main regularity of geographical distribution of vegetation in Guangxi. It may be used as a reference for compilation of very small scale map of regionalization of agriculture, forestry and pasturage. |
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