本数据集为黄土丘陵沟壑区第三副区桥子沟流域地理信息数据。桥子沟流域水土流失观测始于1958年，1987年开始连续观测。桥子沟流域是罗玉沟流域内的一级支沟，桥子沟分东、西两条支沟，按照“相似流域，平行对比”的指导思想将桥子东沟、桥子西沟设为对比观测流域（桥子东沟为非治理沟，桥子西沟为治理沟）。本数据集包括桥子东沟和桥子西沟的流域边界信息和流域控制站等水土保持观测设施的位置信息。
", "ds_source": "遥感解译结合人工调查
", "ds_process_way": "遥感图像解译采用人机交互解译法，按照建立解译标志、室内人机交互解译、野外校核、修编、数字图生成的步骤进行数据加工。
", "ds_quality": "严格按照“水土保持监测技术规程”（SL277）对解译质量控制、成果质量要求进行解译。
", "ds_acq_start_time": "2016-01-01 00:00:00", "ds_acq_end_time": "2016-12-31 00:00:00", "ds_acq_place": "甘肃省天水市秦州区罗玉沟流域桥子沟", "ds_acq_lon_east": 105.72555555555556, "ds_acq_lat_south": 34.60444444444445, "ds_acq_lon_west": 105.70611111111111, "ds_acq_lat_north": 34.62638888888889, "ds_acq_alt_low": 1235.0, "ds_acq_alt_high": 1707.2, "ds_share_type": "apply-access", "ds_total_size": 53384, "ds_files_count": 29, "ds_format": "SHP", "ds_space_res": "2m", "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "如需申请使用，请联系数据贡献者“黄河水土保持天水治理监督局（天水水土保持科学试验站）” 邮箱：hwtsywk@163.com 电话：18709464263", "ds_from_station": null, "organization_id": "49b5ee01-70c1-4c22-8937-1f94d7fcabe2", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596 ", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [], "quality_level": 3, "publish_time": "2022-08-25 17:19:22", "last_updated": "2023-05-16 17:35:04", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.HWTSZhan.2020.68", "i18n": { "en": { "title": "Geographic information data set of qiaozigou watershed in the third sub region of Loess Hilly and Gully Region", "ds_format": "", "ds_source": " <pre><code> <p>Remote sensing interpretation combined with manual investigation</p>\n <pre><code> <p>The interpretation quality control and results quality requirements are interpreted in strict accordance with the \"technical specification for soil and water conservation monitoring\" (sl277). </p>\n <pre><code> <p>This data set is the geographic information data of qiaozigou watershed in the third sub region of Loess Hilly and gully region. The observation of soil and water loss in qiaozigou watershed began in 1958 and continued in 1987. Qiaozigou watershed is the first-class branch ditch in Luoyugou watershed. Qiaozigou is divided into East and West branches. According to the guiding principle of \"similar drainage basin, parallel comparison\", qiaozidonggou and qiaozixigou are set as comparative observation basins (qiaozidonggou is non governance ditch, qiaozixigou is governance ditch). This data set includes the boundary information of qiaozidonggou and qiaozixigou, and the location information of water and soil conservation observation facilities such as watershed control station. </p>\n <pre><code> <p>The remote sensing image interpretation adopts man-machine interactive interpretation method, and carries out data processing according to the steps of establishing interpretation marks, indoor human-computer interactive interpretation, field verification, revision and digital map generation. </p>\n