{
    "created": "2025-07-04 19:09:03",
    "updated": "2026-05-09 12:46:03",
    "id": "47bbd701-9468-4103-a054-d9ce652b4507",
    "version": 0,
    "ds_topic": null,
    "title_cn": "阿拉善绿洲",
    "title_en": "",
    "ds_abstract": "<p>阿拉善绿洲（Alxa Oasis）由额济纳绿洲和阿拉善左、右旗绿洲组成，地理位置为37°50′28″N-42°24′59″N，100°3′42″E-106°12′30″E。行政区划上，阿拉善绿洲位于内蒙古自治区阿拉善盟。阿拉善绿洲的周长为2,413.33 km（Lambert），阿拉善绿洲的面积为4,863.83 km²（Albers）。其中，额济纳绿洲占80.53%；阿拉善左、右旗绿洲占19.47%。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24.7 MB（压缩为2个文件，9.95 MB）。</p>",
    "ds_source": "<p>基于2000年Google earth影像。</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": 10437550,
    "ds_files_count": 2,
    "ds_format": ".kmz，.shp数据格式",
    "ds_space_res": "无",
    "ds_time_res": "无",
    "ds_coordinate": "WGS84",
    "ds_projection": "WGS84",
    "ds_thumbnail": "47bbd701-9468-4103-a054-d9ce652b4507.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": "2025-07-07 10:08:18",
    "first_publish_time": null,
    "last_updated": "2025-07-07 10:08:18",
    "protected": false,
    "protected_to": null,
    "lang": "zh",
    "cstr": null,
    "license": null,
    "extra": null,
    "files_shape": [
        {
            "name": "AlxaOasis.kmz",
            "size": 4578743,
            "is_dir": false
        },
        {
            "name": "AlxaOasisshp.rar",
            "size": 5858807,
            "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",
        "额济纳旗",
        "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"
}