中国森林土壤调查、标准规范及数据库构建_东北东南典型森林土壤调查土壤坡面特征表

2015-2018年在我国主要林区进行森林土壤调查，调查按照LY/T 2250-2014《森林土壤调查技术规程》操作，分区域选择区域代表性山脉按照土壤地带性分布特征，在20m*20m标准样地中挖掘标准剖面，记录地形、地貌、侵蚀状况、土地利用类型、植被组成及土壤剖面特征。数据包括剖面编号、土壤类型、层次符号、深度、向下过渡明显程度、向下过渡形态、紧实度、结构、新生体情况、质地、湿度、PH值、根量、石灰反应等。

A forest soil survey was conducted in major forest regions of China from 2015 to 2018. The survey was carried out in accordance with LY/T 2250-2014 *Technical Regulations for Forest Soil Survey*. Regionally representative mountain ranges were selected based on the zonal distribution characteristics of soils, and standard soil profiles were excavated within 20 m × 20 m standard sample plots. Topography, landform, erosion status, land use type, vegetation composition and soil profile characteristics were recorded during the survey. The collected dataset includes profile number, soil type, horizon designation, depth, distinctness of downward horizon transition, morphology of downward horizon transition, compactness, structure, pedogenic neoformations, texture, moisture content, pH value, root mass, lime reaction and other related indicators.