首先阐述了在实验区范围内,运用国际流行的大型GIS、RS软件包MGE和ERDAS,归纳黄土高原地貌形态信息图谱的方法和步聚;其次,分析了上述过程中的几项关键技术和应注意的问题;第三,展示和分析了黄土高原地貌形态信息图谱的表达样例,包括沟间地个体单元形态表、沟间地组合单元形态表、垂直带谱表、沟间地空间分布格局表、沟谷空间格局表、地貌形态个体/组合体的重组表等6类图谱表。最后,概述了黄土高原地貌形态信息图谱在土壤侵蚀研究中的应用。该信息图谱从目前来看对于黄土高原土壤侵蚀研究和地貌制图与形态表达具有重要意义和应用价值。

Being one of the four main plateaus in China, Loess Plateau is a unique geomorphologic unit. Its special landform plus the extraordinary erosion by modern external forces makes it a sample region in which human beings destruct natural environment and meanwhile seriously harmed by natural disasters. For this region, what geomorphologists and cartographers have long been used to describe its landform is not only indirect and unobvious, but also inaccurate, and sometimes incapable or inefficient. Therefore, the method we try to use for the landform of Loess Plateau, i.e., Geo-Info-TUPU, is very important and essential. This paper introduced the authors research work and initial achievements in the application of Geo-info-TUPU in Loess Plateau landform. After expounding its importance, the authors describe four issues in details, that is, at first, the method and steps of inducing & extracting Geo-info-TUPU for the landform by using current major GIS & RS software packages such as MGE and ERDAS; secondly, several key problems and points in the above procedure; thirdly, the examples of Loess Plateau's landform Info-TUPU in sample area, including six tables as shape table for single cross-ditch-units, shape table for combined cross-ditch-units vertical zone series table spatial pattern table for cross-ditch-units, spatial pattern table for ditches and valleys, as well as virtual combination table for landform units; at last, the application of landform Info-TUPU in the research work of soil erosion. The result shows that it plays an important role in our research on Loess Plateau soil erosion and geomorphologic mapping.