土壤界线

土壤界线通过内插法寻找，选择有代表性的调查路线后对主要剖面挖掘定名，利用检查剖面和定界剖面确定分界点，进而确定土壤界线。

We use interpolation search to find soil boundary , select a representative survey routes to dig and name the main profile , the use of checks and delimitation of section profiles to determine cut-off point and to determine the soil line .

土壤界线则是利用内插法在调查路线上确定土壤类型分界点后，结合遥感图像将不同调查路线相同土壤类型分界点用平滑曲线连接最终确定。

Soil boundaries is to use the interpolation method in the investigation of the route after the cut-off point , combined with remote sensing images to connect the demarcation point of same type soil from different lines of investigation with smooth curves to determine soil boundary .

前期的调查路线确定和主要剖面点的挖掘定名是土壤界线确定基础，检查剖面和定界剖面的设置则是土壤界线确定的重要条件。（4）结合景观进行土壤调查。

Preliminary determining investigation routes and the main profile is the basis of soil boundaries determined , the principles of setting check profile and delimitation profile is important to determine boundary conditions . ( 4 ) Combining with soil landscape to survey .

雪线是降水的零平衡面，作为终年积雪区的下界，是与林线、冰缘线和土壤线等界线同等重要的自然地理区划线。

As the zero-balanced surface of rainfall , the snowline can be defined as the lower limit of the perennially snow-covered area , and it is a geographic element as important as the tree line , the periglacial line and the soil line .

本研究的目的就是以土壤系统分类理论为指导，选择一个有代表性的小区域面向土壤系统分类的土壤调查方法研究，研究内容主要包括基于土壤系统分类的土壤类型与界线确定。

The purpose of this study is to soil taxonomy theory as a guide , and select a representative area to research about soil survey methods for the Soil Taxonomy . The main research content is identifying to soil types and soil boundaries for Soil Taxonomy .