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机构地区:[1]云南省林业调查规划院大理分院,云南大理671000 [2]云南师范大学旅游与地理科学学院,云南昆明650500 [3]大理学院,云南大理671003
出 处:《山地学报》2013年第1期31-38,共8页Mountain Research
摘 要:地学信息图谱是一种以图形方式显示地理事物或现象空间形态结构、揭示时空变化规律的手段与方法。为了实现基础地理信息数字化,推动"数字山地"研究的开展和区域可持续发展,在地学信息图谱理论和ArcGIS软件环境支撑下,利用云南省第二次土壤普查资料、1∶25万电子地图和DEM数据等建立了云南省土壤垂直带信息图谱,实现了山地土壤垂直带的数字化显示及其与地理位置的链接。基于空间维度的土壤信息带谱显示,在纬度方向上土壤带谱滇西比滇东复杂,且长度随纬向递增;在经度方向上,热带区域的土壤垂直带谱结构相对较简单,亚热带区域的土壤垂直带谱结构、长度趋于一致,温带高原气候区的土壤垂直带谱结构最为丰富和复杂,且再次体现了相同基带上发育的土壤带组成基本相似的规律,但各区内部随经度变化规律不明显。Geo-informatic tupu is a means and method of using graphics mode to display the spatial configuration and reveal the spatial-temporal change rule of earth system and its elements and phenomena. This paper has taken Yunnan province as a research area due to the various physiognomies and typical mountainous characteristics. High complexity of the landscape and biological climate make the soil that is an essential factor of mountainous region en- vironment to be clearly vertical differentiation. By researching the mountaionous soil vertical vertical zone could help us to recognize its distribution and variety law. It is not only beneficial to explore the methods of regional ecological and geographical pattern, but also to three-dimensional development of agriculture, afforestation, soil and water con- servation, mountain environmental protection. Data model of mountainous soil vertical zone had been built by using the China soil database of 1 : 1 000 000, the second soil survey data of Yunnan Province, electronic map of 1:250 000 and DEM in the paper. The digital display of mountainous soil vertical zone had been realized and soil vertical zone had been linked to location information and visualized supported by ArcGIS 9.2. It indicated from the information map ( 1 ) the soil vertical zone become complete gradually from south to north ( 2 ) 24 ° N south of the tropical zone, the complexity of soil vertical zone structure is become sample and sample due to the decreasing of mountain height and southeast monsoon and southwest monsoon. In subtropical zone (24°- 26°N), soil vertical zone structure is become the same because the influence of monsoon is weak. 26 °N south of temperate highland climate zone, the components and the of structure soil vertical zone are similar for those with red soil, dry red soil as their baseband. The red soil, brown soil and dark brown forest soil were the common soil for all soil vertical zones in this area.
分 类 号:P208[天文地球—地图制图学与地理信息工程] S159[天文地球—测绘科学与技术]
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