黄河上游1:100万土壤数据库是以1:100万中国土壤数据库为数据源裁剪而成。1:100万中国土壤数据库根据全国土壤普查办公室1995年编制并出版的《1:100万中华人民共和国土壤图》编制而成。该数据库采用传统的“土壤发生学分类”系统，基本制图单位为亚类，共分12个土纲，61个土类，227个亚类，基本覆盖了全国各种类型的土壤及其主要属性数据。
", "ds_source": "土壤空间数据库，即全国1:100万数字化土壤图，是依据全国个普查办公室1995年编制并出版的《1:100万中华人民共和国土壤图》，经数字化处理、图幅接边和编辑后完成。该数字化土壤图如实地反映了原土壤图的面貌，继承了原土壤图编制时的制图单元，其基本制图单元大部分为土属，共分12个土纲，61个土类，235个亚类，是目前全国性唯一的，也是最为详细的数字化土壤图件。\n土壤属性数据库，其属性数据引自《中国土种志》，该套土种志共分六卷，收集了近2540个土种。土壤属性数据可分为土壤物理性质、土壤化学性质和土壤养分等。土壤物理性质 土壤颗粒组成和土壤质地等，土壤化学性质如PH值、有机质等，土壤养分包括全N、全P、全K以及有效P和有效K等。
", "ds_process_way": "中国1:100万土壤数据库，是由中国科学院南京土壤研究所以史学正研究员为学术带头人的土壤资源与数字化管理创新科研小组，历经四年组建而成的。该数据库由两部分组成，即土壤空间数据库与土壤属性数据库。数据库的建立得到了中国科学院知识创新项目资助，并在刘纪远与庄大方研究员的领导下完成。
", "ds_quality": "土壤类型与土壤属性是自然地理学研究中的一项重要内容，借助黄河上游1:100万土壤数据库，可对黄河上游土壤资源的类型、数量和空间分布以及成土环境与特征进行了解与分析。该数据集对进行黄河上游大范围土壤侵蚀预警与自然灾害预报有着重要的意义。
", "ds_acq_start_time": "1995-01-01 00:00:00", "ds_acq_end_time": "1995-12-01 00:00:00", "ds_acq_place": "黄河上游", "ds_acq_lon_east": 112.0, "ds_acq_lat_south": 32.0, "ds_acq_lon_west": 95.0, "ds_acq_lat_north": 42.0, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 5487424, "ds_files_count": 2, "ds_format": "mdb", "ds_space_res": null, "ds_time_res": "年", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "b7f58f14-3612-4036-9a2c-f90c418ebbc9.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": null, "ds_from_station": null, "organization_id": "52b7b79b-860c-49a5-9083-9a70cf8bed5a", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596 ", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": null, "quality_level": 3, "publish_time": "2020-12-23 10:18:03", "last_updated": "2023-08-23 17:03:24", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.nieer.2020.1533", "i18n": { "en": { "title": "1:1 million soil database of the upper reaches of the Yellow River in 1995", "ds_format": "", "ds_source": "The soil spatial database, i.e. the national 1:1 million digital soil map, is based on the soil map of the people's Republic of China (1:1 million) compiled and published by the national census offices in 1995, which has been completed after digital processing, map sheet connection and editing. The digital soil map reflects the face of the original soil map truthfully and inherits the mapping unit of the original soil map. Most of the basic mapping units are soil genera, which are divided into 12 soil classes, 61 soil classes and 235 sub classes. It is the only and most detailed digital soil map in China at present.", "ds_quality": "
Soil type and soil attribute is an important content in the study of physical geography. With the help of 1:1 million soil database in the upper reaches of the Yellow River, we can understand and analyze the type, quantity and spatial distribution of soil resources in the upper reaches of the Yellow River, as well as the soil forming environment and characteristics. The data set is of great significance for the prediction of soil erosion and natural disasters in the upper reaches of the Yellow River.
", "ds_ref_way": "", "ds_abstract": "The 1:1 million soil database in the upper reaches of the Yellow River is cut from the 1:1 million Chinese soil database. 1: The 1 million soil database of China was compiled according to the soil map of the people's Republic of China (1:1 million) compiled and published by the National Soil Census Office in 1995. The database uses the traditional system of soil genetic classification. The basic mapping unit is subclass, which is divided into 12 soil classes, 61 soil classes and 227 subclasses. It basically covers all types of soil and its main attribute data in China.
", "ds_time_res": "年", "ds_acq_place": "", "ds_space_res": "", "ds_projection": "", "ds_process_way": "China's 1:1 million soil database is an innovative research group of soil resources and digital management, which is led by the research fellow of Nanjing Soil Research Institute of Chinese Academy of Sciences. It has been established for four years. The database consists of two parts: soil spatial database and soil attribute database. The establishment of the database was supported by the knowledge innovation program of the Chinese Academy of Sciences and completed under the leadership of Liu Jiyuan and Zhuang Dafang.
", "ds_ref_instruction": " In order to respect intellectual property rights, protect the rights and interests of data authors, expand the services of data centers, and evaluate the application potential of data, data users are requested to clearly indicate the data source and data authors in the research results (including published papers, works, data products and unpublished research reports, data products, etc.) produced by using data." } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "ds_topic_tags": [ "黄河上游", "土壤数据", "1:100万" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "黄河上游" ], "ds_time_tags": [ 1995 ], "ds_contributors": [ { "true_name": "薛娴", "email": "xianxue@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "杜鹤强", "email": "dilikexue119@163.com", "work_for": "中国科学院西北生态环境资源研究院", "country": "" } ], "ds_managers": [ { "true_name": "薛娴", "email": "xianxue@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "category": "基础地理" }