论文部分内容阅读
在对大兴安岭北部林区寒棕壤进行多次面上调查及定位研究的基础上，根据初步拟定的“寒棕壤系统分类”，选择了具有广泛代表性的大兴安岭北部西坡潮查自然保护区作为寒棕壤标准剖面采集地点，并按“中国土壤系统分类研究项目”拟定的土壤剖面描述标准和土壤实验室分析项目及方法规范进行外业采集土壤标本和内业土壤分析。研究结果讨论了寒棕壤标准剖面的成土条件和基本性质；并以诊断层和诊断特性为基础研究检查了寒棕壤系统分类中的问题，对诊断层中的诊断表层（腐殖质表层、潜育特征），诊断表下层（风化Ｂ层、粘化层、灰化淀积层、灰化淀积特征）和诊断特性中的冻融特征、土壤水分状况、土壤温度状况、地表至５０ｃｍ土层的石砾含量等进行了检查讨论。
Based on the multi-surface surveys and location studies of cold brown soil in the northern part of the Greater Xing’an Mountains, based on the preliminarily formulated “cold brown soil classification system”, a large representative representative of the Xichao Chaocha Nature Reserve It was collected as a standard profile of cold brown soil and soil samples were collected from soil samples collected in the field and internal soil according to the soil profile description standard and soil laboratory analysis items and method specifications prepared by China Soil Taxonomic Classification Research Project. The results of this study discussed the soil-forming conditions and basic properties of the standard profiles of cold brown soil. Based on the diagnostic and diagnostic characteristics, the problems in the classification of cold-brown soil systems were examined, and the diagnostic surface (humus surface, Characteristics of freezing and thawing in the lower layers of the diagnostic table (weathering B, sticky, ashed deposition, ashing deposition) and diagnostic properties, soil moisture status, soil temperature status, surface to 50 cm soil layer The content of pebbles etc was examined and discussed.