吉林省典型土系的研究及建立
发布时间：2018-08-04 14:48
【摘要】：土壤是人类的重要资源,是农业生产的基础。土壤分类是土壤调查的基础,反映了土壤科学水平。吉林省独特的气候环境和地形地貌决定了其土壤类型空间分布的独特性和多样性。本研究通过对27个典型剖面的野外调查和室内分析,依据《中国土壤系统分类检索(第三版)》和《中国土壤系统分类土族和土系划分标准》,确定了典型土壤剖面的诊断层和诊断特性,划分了高级分类单元和基层分类单元,建立了新的土系。通过研究主要获得以下结论:(1)由于吉林省由东到西气候环境和地形地貌差异显著,因此吉林省土壤分布类型东西部明显不同。吉林省东部多为湿润雏形土和漂白冷凉淋溶土,间或分布有湿润均腐土和冲积新成土;吉林省中部地区分布的土壤主要是湿润均腐土,间或分布冷凉淋溶土和冲积新成土;吉林省西部地区主要土壤类型为干润均腐土、盐成土和干润雏形土,零星分布有少量砂质新成土。(2)根据《中国土壤系统分类检索(第三版)》,对吉林省的27个典型土壤剖面所具有的诊断层和诊断特性进行分析,共划分出3个诊断表层、6个诊断表下层、8个诊断特性。(3)根据《中国土壤系统分类检索(第三版)》,本研究的27个典型土壤剖面高级分类单元可确定为盐成土、均腐土、淋溶土、雏形土、新成土5个土纲,10个亚纲,14个土类,22个亚类。(4)按照《中国土壤系统分类土族和土系划分标准》,根据样区土壤的颗粒大小级别、矿物组成、酸碱性、土壤温度等性质,对所采27个典型土壤剖面分析,可确定为25个土族。根据样区土壤特定土层深度和厚度、表土质地、土壤中岩石碎屑结核侵入体等、土壤盐分含量等土壤性状,吉林省27个典型土壤剖面可确定为27个土系。
[Abstract]:Soil is an important resource of human being and the basis of agricultural production. Soil classification is the basis of soil investigation and reflects the level of soil science. The unique climatic environment and landform of Jilin Province determine the uniqueness and diversity of the spatial distribution of soil types. Through field investigation and indoor analysis of 27 typical sections, According to the Chinese soil system Classification Retrieval (the third Edition) and the Chinese soil system Classification criteria for Tu and soil series, the diagnostic layers and diagnostic characteristics of typical soil profiles were determined, and the advanced classification units and the basic-level classification units were divided. A new soil system has been established. The main conclusions are as follows: (1) the soil distribution types of Jilin Province are obviously different from east to west because of the obvious difference in climate environment and landform from east to west in Jilin Province. In the eastern part of Jilin Province, most of the soils are wetted and bleached cold and leached, and there are wetted soil and alluvial newly formed soils in the middle part of Jilin Province, while in the middle of Jilin Province, they are mainly distributed in the middle part of Jilin Province, which are mainly distributed in the cold leaching soil and the new alluvial soil. The main soil types in the west of Jilin Province are dry soil, salt soil and dry soil. A small amount of newly formed sandy soil was distributed sporadically. (2) according to the Chinese soil system Classification and Retrieval (third Edition), the diagnostic layers and diagnostic characteristics of 27 typical soil sections in Jilin Province were analyzed. A total of 3 diagnostic surfaces, 6 lower diagnostic tables and 8 diagnostic characteristics were divided. (3) according to the third edition of the Chinese soil system, the 27 typical soil profile high-level classification units in this study can be identified as halogenated soil, homohumic soil and leached soil. Embryonic soil, newly formed soil, 5 soil classes, 10 subclasses, 14 soil classes, 22 subclasses. (4) according to the criteria for the classification of Tu and soil series in Chinese soil system, according to the particle size, mineral composition, acid and alkalinity, soil temperature and other properties of the soil in the sample area, By analyzing 27 typical soil profiles, 25 Tu were identified. According to the soil characteristics such as specific soil depth and thickness, topsoil texture, rock clastic nodule intrusion in the soil, and soil salt content, 27 typical soil profiles of Jilin Province can be determined as 27 soil lines.
【学位授予单位】：中国科学院研究生院（东北地理与农业生态研究所）
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：S155
本文编号：2164213
[Abstract]:Soil is an important resource of human being and the basis of agricultural production. Soil classification is the basis of soil investigation and reflects the level of soil science. The unique climatic environment and landform of Jilin Province determine the uniqueness and diversity of the spatial distribution of soil types. Through field investigation and indoor analysis of 27 typical sections, According to the Chinese soil system Classification Retrieval (the third Edition) and the Chinese soil system Classification criteria for Tu and soil series, the diagnostic layers and diagnostic characteristics of typical soil profiles were determined, and the advanced classification units and the basic-level classification units were divided. A new soil system has been established. The main conclusions are as follows: (1) the soil distribution types of Jilin Province are obviously different from east to west because of the obvious difference in climate environment and landform from east to west in Jilin Province. In the eastern part of Jilin Province, most of the soils are wetted and bleached cold and leached, and there are wetted soil and alluvial newly formed soils in the middle part of Jilin Province, while in the middle of Jilin Province, they are mainly distributed in the middle part of Jilin Province, which are mainly distributed in the cold leaching soil and the new alluvial soil. The main soil types in the west of Jilin Province are dry soil, salt soil and dry soil. A small amount of newly formed sandy soil was distributed sporadically. (2) according to the Chinese soil system Classification and Retrieval (third Edition), the diagnostic layers and diagnostic characteristics of 27 typical soil sections in Jilin Province were analyzed. A total of 3 diagnostic surfaces, 6 lower diagnostic tables and 8 diagnostic characteristics were divided. (3) according to the third edition of the Chinese soil system, the 27 typical soil profile high-level classification units in this study can be identified as halogenated soil, homohumic soil and leached soil. Embryonic soil, newly formed soil, 5 soil classes, 10 subclasses, 14 soil classes, 22 subclasses. (4) according to the criteria for the classification of Tu and soil series in Chinese soil system, according to the particle size, mineral composition, acid and alkalinity, soil temperature and other properties of the soil in the sample area, By analyzing 27 typical soil profiles, 25 Tu were identified. According to the soil characteristics such as specific soil depth and thickness, topsoil texture, rock clastic nodule intrusion in the soil, and soil salt content, 27 typical soil profiles of Jilin Province can be determined as 27 soil lines.
【学位授予单位】：中国科学院研究生院（东北地理与农业生态研究所）
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：S155
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