本数据集是以中国沙漠1:10万分布图集为数据源，按流域边界裁剪而成，重点反映黄河上游沙漠、沙地和戈壁的地理分布、面积大小、沙丘流动性与固定程度。本数据集信息源为2000年Landsat TM影像，利用遥感与地理信息系统技术，按照1:10万比例尺专题图成图要求，对我国沙漠、沙地和戈壁进行了专题制图。
", "ds_source": "本数据集分为荒漠与非荒漠类，非荒漠代码为999.荒漠分为三类，为沙漠（地）、戈壁与盐碱地，分类代码分别为23410、2342000与2343000。其中沙漠（地）分为4类，分别为流动沙漠（地）、半流动沙漠（地）、半固定沙漠（地）、固定沙漠（地），其分类代码分别为：2341010、2341020、2341030与2341040
", "ds_process_way": "本数据集以中国沙漠1:10万分布图集为数据源，按流域边界裁剪而成。本数据集信息源为2000年Landsat TM影像，利用遥感与地理信息系统技术，按照1:10万比例尺专题图成图要求，对我国沙漠、沙地和戈壁进行了专题制图。按照系统设计要求及有关标准，将输入数据进行标准化，统一转化为各类数据输入的标准格式。
", "ds_quality": "数据质量良好。
", "ds_acq_start_time": "2000-01-01 00:00:00", "ds_acq_end_time": "2000-12-01 00:00:00", "ds_acq_place": "黄河上游", "ds_acq_lon_east": 112.0, "ds_acq_lat_south": 32.0, "ds_acq_lon_west": 95.0, "ds_acq_lat_north": 42.0, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 42818245, "ds_files_count": 2, "ds_format": "dbf", "ds_space_res": null, "ds_time_res": "年", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "d5789e7a-d131-4ed6-818d-2e268ed279fc.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "None", "ds_from_station": null, "organization_id": "52b7b79b-860c-49a5-9083-9a70cf8bed5a", "ds_serv_man": "敏玉芳", "ds_serv_phone": "0931-4967596 ", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2020-12-21 16:45:15", "last_updated": "2025-04-23 10:03:53", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.nieer.2020.1534", "i18n": { "en": { "title": "1:100000 mapset of desert distribution in the Yellow River Upstream", "ds_format": "dbf", "ds_source": "This dataset is divided into desert and non desert categories, with a non desert code of 999. Deserts are divided into three categories: desert (land), Gobi, and saline alkali land, with classification codes of 23410, 2342000, and 2343000, respectively. Deserts are divided into four categories, namely mobile deserts, semi mobile deserts, semi fixed deserts, and fixed deserts. Their classification codes are 2341010, 2341020, 2341030, and 2341040, respectively
", "ds_quality": "The data quality is good", "ds_ref_way": "", "ds_abstract": "
This dataset is based on the 1:100000 distribution map of deserts in China, tailored according to watershed boundaries, and focuses on reflecting the geographical distribution, area size, sand dune mobility, and fixation degree of deserts, sandy land, and Gobi in the upper reaches of the Yellow River. The information source of this dataset is Landsat TM images from 2000. Using remote sensing and geographic information system technology, thematic mapping of deserts, sandy areas, and Gobi in China was conducted according to the 1:100000 scale thematic mapping requirements
", "ds_time_res": "年", "ds_acq_place": "Upper Yellow River", "ds_space_res": "", "ds_projection": "", "ds_process_way": "This dataset is based on the 1:100000 distribution map of deserts in China, and is cropped according to watershed boundaries. The information source of this dataset is Landsat TM images from 2000. Using remote sensing and geographic information system technology, thematic mapping of deserts, sandy areas, and Gobi in China was conducted according to the 1:100000 scale thematic mapping requirements. According to the system design requirements and relevant standards, standardize the input data and unify it into standard formats for various data inputs
", "ds_ref_instruction": "None" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "doi_reg_from": "reg_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "ds_topic_tags": [ "沙漠分布", "黄河上游", "1:10万" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "黄河上游" ], "ds_time_tags": [ 2000 ], "ds_contributors": [ { "true_name": "薛娴", "email": "xianxue@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "杜鹤强", "email": "dilikexue119@163.com", "work_for": "中国科学院西北生态环境资源研究院", "country": "" } ], "ds_managers": [ { "true_name": "薛娴", "email": "xianxue@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "中国" } ], "category": "沙漠与荒漠化" }