{
    "created": "2025-06-13 10:19:16",
    "updated": "2026-05-09 14:31:07",
    "id": "9e236850-4ab2-4070-ba8f-c22f2f033cb3",
    "version": 2,
    "ds_topic": null,
    "title_cn": "阿拉善左、右旗绿洲",
    "title_en": "",
    "ds_abstract": "<p>阿拉善左、右旗绿洲（Alxa Left and Right Banner Oasis）位于中国内蒙古自治区阿拉善左旗和阿拉善右旗，具体位置为39°50′28″N-40°43′8″N，100°50′5″E-106°12′30″E。阿拉善左、右旗绿洲由196块绿洲组成，总面积为946.81 km²（Albers），总周长为1,463.63 km（Lambert）。其中，最大绿洲的面积为170.74 km²，占绿洲总面积的18.03%。该数据集以.kmz和.shp数据格式存储，由17个数据文件组成，数据量为8.02 MB（压缩为2个文件，3.34 MB）。</p>",
    "ds_source": "<p>基于Google earth影像、ASTER GDEM 30 m数据，结合实测数据。</p>",
    "ds_process_way": "",
    "ds_quality": "",
    "ds_acq_start_time": null,
    "ds_acq_end_time": null,
    "ds_acq_place": "",
    "ds_acq_lon_east": null,
    "ds_acq_lat_south": null,
    "ds_acq_lon_west": null,
    "ds_acq_lat_north": null,
    "ds_acq_alt_low": null,
    "ds_acq_alt_high": null,
    "ds_share_type": "在线下载",
    "ds_total_size": 3504301,
    "ds_files_count": 2,
    "ds_format": ".kmz、.shp、.jpg与.txt数据格式",
    "ds_space_res": "无",
    "ds_time_res": "无",
    "ds_coordinate": "WGS84",
    "ds_projection": "WGS84",
    "ds_thumbnail": "9e236850-4ab2-4070-ba8f-c22f2f033cb3.jpg",
    "ds_thumb_from": 0,
    "ds_ref_way": "",
    "paper_ref_way": "",
    "ds_ref_instruction": "",
    "ds_from_station": null,
    "organization_id": "a5877b42-96ea-4f13-af7e-246f355413d6",
    "doi_value": "",
    "subject_codes": [
        "170.45"
    ],
    "quality_level": 1,
    "publish_time": "2025-07-25 13:51:04",
    "first_publish_time": null,
    "last_updated": "2025-07-25 13:51:04",
    "protected": false,
    "protected_to": null,
    "lang": "zh",
    "cstr": null,
    "license": null,
    "extra": null,
    "files_shape": [
        {
            "name": "AlxaLeftandRightBannerOasis.kmz",
            "size": 1504895,
            "is_dir": false
        },
        {
            "name": "AlxaLeftandRightBannerOasisshp.rar",
            "size": 1999406,
            "is_dir": false
        }
    ],
    "features": null,
    "data_level": 0,
    "ds_topic_tags": [
        "绿洲"
    ],
    "ds_subject_tags": [
        "地理学"
    ],
    "ds_class_tags": [],
    "ds_locus_tags": [
        "阿拉善左旗",
        "阿拉善右旗",
        "内蒙古"
    ],
    "ds_time_tags": [],
    "ds_contributors": [
        "桂东伟"
    ],
    "ds_meta_authors": [
        "桂东伟"
    ],
    "ds_managers": [
        "李锦"
    ],
    "category": "土地利用/土地覆被"
}