{
    "created": "2019-10-11 09:08:46",
    "updated": "2026-04-04 14:07:16",
    "id": "d69d1cae-07c9-4cf4-8a98-2b63d21e7049",
    "version": null,
    "ds_topic": null,
    "title_cn": "中国土壤特征数据集",
    "title_en": "A China Soil Characteristics Dataset",
    "ds_abstract": "<p>本数据集的源数据来源于第二次土壤普查的1：100万中国土壤图（Shi et al., 2004）和8595个土壤剖面。我们采用了多边形连接法将土壤剖面和土壤图斑连接起来得到了土壤砂粒、粉粒和粘粒含量图。连接时考虑到了剖面与图斑间的距离、土壤剖面个数和土壤分类信息。\n数据特征</p>\n\n<p>投影：GCS_Krasovsky_1940</p>\n\n<p>覆盖范围：中国</p>\n\n<p>分辨率：0.00833 度（约一公里）</p>\n\n<p>数据格式：FLT, TIFF</p>\n\n<p>取值范围：0%-100%</p>\n\n<p>文件说明</p>\n\n<p>浮点栅格文件包括：</p>\n\n<p>sand1.flt, clay1.flt – 表层(0-30cm) 砂粒、粘粒含量。</p>\n\n<p>sand2.flt, clay2.flt – 底层(30-100cm) 砂粒、粘粒含量。</p>\n\n<p>psd.hdr – 头文件:</p>\n\n<p>ncols – 列数</p>\n\n<p>nrows – 行数</p>\n\n<p>xllcorner – 左下角纬度</p>\n\n<p>yllcorner – 左下角经度</p>\n\n<p>cellsize – 单元格大小</p>\n\n<p>NODATA_value – 空值</p>\n\n<p>byteorder - LSBFIRST, Least Significant Bit First</p>\n\n<p>TIFF 栅格文件包括:</p>\n\n<p>sand1.tif, clay1.tif -表层(0-30cm) 砂粒、粘粒含量。</p>\n\n<p>sand2.tif, clay2.tif -底层(30-100cm) 砂粒、粘粒含量。</p>",
    "ds_source": "<p>数据来源于第二次土壤普查的1：100万中国土壤图（Shi et al., 2004）和8595个土壤剖面</p>",
    "ds_process_way": "<p>数字矢量化</p>",
    "ds_quality": "<p>数据质量良好</p>",
    "ds_acq_start_time": "2010-01-01 00:00:00",
    "ds_acq_end_time": "2010-12-31 00:00:00",
    "ds_acq_place": "中国",
    "ds_acq_lon_east": 135.5,
    "ds_acq_lat_south": 17.8,
    "ds_acq_lon_west": 73.2,
    "ds_acq_lat_north": 53.86666666666667,
    "ds_acq_alt_low": null,
    "ds_acq_alt_high": null,
    "ds_share_type": "login-access",
    "ds_total_size": 58581317,
    "ds_files_count": 3,
    "ds_format": "栅格",
    "ds_space_res": null,
    "ds_time_res": "",
    "ds_coordinate": "WGS84",
    "ds_projection": "GCS_Krasovsky_1940",
    "ds_thumbnail": "d69d1cae-07c9-4cf4-8a98-2b63d21e7049.png",
    "ds_thumb_from": 0,
    "ds_ref_way": "文章的引用： Shangguan, W., Y. Dai, B. Liu, A. Ye, and H. Yuan (2012), A soil particle-size distribution dataset for regional land and climate modelling in China, Geoderma, 171-172, 85-91. doi:10.1016/j.geoderma.2011.01.013",
    "paper_ref_way": "",
    "ds_ref_instruction": "本数据来源于北京师范大学，用户在使用数据时请在正文中明确声明数据的来源。",
    "ds_from_station": null,
    "organization_id": "9c4867b1-5cb1-4de0-abeb-df42547bf41e",
    "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 11:18:36",
    "last_updated": "2023-08-23 16:45:02",
    "protected": false,
    "protected_to": null,
    "lang": "zh",
    "cstr": "11738.11.ncdc.Westdc.2020.653",
    "license": null,
    "i18n": {
        "en": {
            "title": "A China Soil Characteristics Dataset",
            "ds_format": "",
            "ds_source": "<p>Data from the 1:1 million soil map of China (Shi et al., 2004) and 8595 soil profiles from the second Soil Census</p>",
            "ds_quality": "<p>Good data quality</p>",
            "ds_ref_way": "<p>Citation: Shangguan, W., Y. Dai, B. Liu, A. ye, and h. yuan (2012), a soil particle size distribution dataset for regional land and climate modeling in China, geoderma, 171-172, 85-91. Doi: 10.1016/j.geoderma.2011.01.013</p>",
            "ds_abstract": "<p>The source data of this data set comes from the 1:1 million soil map of China (Shi et al., 2004) and 8595 soil sections in the second Soil Census. The polygonal connection method is used to connect the soil profile with the soil map to obtain the soil sand, silt and clay content map. The distance between the profile and the map spot, the number of soil profiles and the information of soil classification are taken into account.\nData characteristics</p>\n<p>Projection: GCS? Krasovsky? 1940</p>\n<p>Coverage: China</p>\n<p>Resolution: 0.00833 degrees (about one kilometer)</p>\n<p>Data format: FLT, tiff</p>\n<p>Value range: 0% - 100%</p>\n<p>Document description</p>\n<p>Floating point grid files include:</p>\n<p>Sand1.flt, clay1.flt - content of sand and clay in the surface layer (0-30cm). </p>\n<p>Sand2.flt, clay2.flt - sand and clay content in the bottom layer (30-100cm). </p>\n<p>Psd.hdr – header file:</p>\n<p>Ncols - number of columns</p>\n<p>Nrows - number of rows</p>\n<p>Xllcorner - lower left latitude</p>\n<p>Yllcorner - lower left longitude</p>\n<p>Cellsize - cell size</p>\n<p>NoData? Value - null</p>\n<p>byteorder - LSBFIRST, Least Significant Bit First</p>\n<p>TIFF grid files include:</p>\n<p>Sand 1.tif, clay 1.tif - the content of sand and clay in the surface layer (0-30cm). </p>\n<p>Sand 2.tif, clay 2.tif - sand and clay content in the bottom layer (30-100cm). </p>",
            "ds_time_res": "",
            "ds_acq_place": "",
            "ds_space_res": "",
            "ds_projection": "",
            "ds_process_way": "<p>Digital Vectorization</p>",
            "ds_ref_instruction": "                    \nThis data is from Beijing Normal University. When using the data, please clearly state the data source in the text."
        }
    },
    "submit_center_id": "ncdc",
    "data_level": 0,
    "license_type": "CC BY 4.0",
    "ds_topic_tags": [
        "土壤",
        "土壤粒径",
        "土壤质地"
    ],
    "ds_subject_tags": [
        "自然地理学"
    ],
    "ds_class_tags": [],
    "ds_locus_tags": [
        "中国"
    ],
    "ds_time_tags": [
        2010
    ],
    "ds_contributors": [
        {
            "true_name": "戴永久",
            "email": "yongjiudai@bnu.edu.cn",
            "work_for": "北京师范大学",
            "country": "中国"
        }
    ],
    "ds_meta_authors": [
        {
            "true_name": "戴永久",
            "email": "yongjiudai@bnu.edu.cn",
            "work_for": "北京师范大学",
            "country": "中国"
        }
    ],
    "ds_managers": [
        {
            "true_name": "戴永久",
            "email": "yongjiudai@bnu.edu.cn",
            "work_for": "北京师范大学",
            "country": "中国"
        }
    ],
    "category": "基础地理"
}