{
    "created": "2025-01-15 18:41:39",
    "updated": "2026-05-09 17:34:16",
    "id": "a6884c40-363e-4c82-b2a1-8e463285363e",
    "version": 17,
    "ds_topic": null,
    "title_cn": "2019年乌兹克克斯坦Nukus灌区农作物种植结构",
    "title_en": "",
    "ds_abstract": "<p>本数据集为2019年乌兹别克斯坦Nukus灌区农作物种植结构10M分辨率矢量数据。数据包含水域、玉米、水稻、小麦、棉花、（园地、葡萄、苹果、苜蓿、桃树）、（林地、桑树）、（弃耕地、休耕地、退耕地、荒地）、（大棚、蔬菜、苜蓿、啤酒花）、盐碱地、荒漠、草地等12大种植结构类别，种植面积信息，以shp矢量格式存储。</p>",
    "ds_source": "<p>哨兵数据。</p>",
    "ds_process_way": "<p>\n<p>种植结构是在GEE平台上利用随机森林算法并结合采集的样本点数据计算得出的，为了区分方便，在计算过程中我们将每一种相似作物类型用一个阿拉伯数字表示，计算完的.tif结果再用分区统计的方式链接到提取的耕地上，在这个过程中，我们把表示作物类型的字段保留下来，即max字段，每个阿拉伯数字对应的作物类型如下表所示：</p>\n<img alt=\"\" src=\"/static/upload/images/20250310163256a.png\" /></p>",
    "ds_quality": "<p>Kappa系数80%</p>",
    "ds_acq_start_time": "2019-01-08 00:00:00",
    "ds_acq_end_time": "2020-01-07 00:00:00",
    "ds_acq_place": "乌兹别克斯坦Nukus灌区",
    "ds_acq_lon_east": 60.58889,
    "ds_acq_lat_south": 42.288612,
    "ds_acq_lon_west": 58.411945,
    "ds_acq_lat_north": 43.720833,
    "ds_acq_alt_low": null,
    "ds_acq_alt_high": null,
    "ds_share_type": "离线申请",
    "ds_total_size": 65118096,
    "ds_files_count": 2,
    "ds_format": ".shp",
    "ds_space_res": "10",
    "ds_time_res": "无",
    "ds_coordinate": "WGS84",
    "ds_projection": "WGS84",
    "ds_thumbnail": "a6884c40-363e-4c82-b2a1-8e463285363e.png",
    "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": [
        "170.40"
    ],
    "quality_level": 1,
    "publish_time": "2025-01-16 11:20:06",
    "first_publish_time": null,
    "last_updated": "2025-05-28 14:10:17",
    "protected": false,
    "protected_to": null,
    "lang": "zh",
    "cstr": "33110.11.ariddc.00282",
    "license": null,
    "extra": null,
    "files_shape": [
        {
            "name": "2019_UZB-Nukus_Crop planting structure.rar",
            "size": 65102034,
            "is_dir": false
        },
        {
            "name": "种植结构数据说明.docx",
            "size": 16062,
            "is_dir": false
        }
    ],
    "features": null,
    "data_level": 0,
    "ds_topic_tags": [
        "种植结构",
        "陆地表层遥感"
    ],
    "ds_subject_tags": [
        "地图学"
    ],
    "ds_class_tags": [],
    "ds_locus_tags": [
        "乌兹别克斯坦",
        "Nukus灌区"
    ],
    "ds_time_tags": [
        2019
    ],
    "ds_contributors": [
        "刘铁",
        "钱静"
    ],
    "ds_meta_authors": [
        "刘铁"
    ],
    "ds_managers": [
        "刘铁"
    ],
    "category": "遥感再分析数据"
}