黑河流域是我国第二大内陆河流域，近30年来，黑河流域建立了较为完善的流域观测系统，已经成为我国重要的内陆河研究基地。流域是重要的自然研究单元，但黑河流域边界并不统一，为了便于用户使用数据，我们收集整理了文献中常见的5种黑河流域边界：
\n\n1）1985-1986年我国开始将黑河流域作为整体进行系统性的研究，在基础调查和掌握的大量资料的基础上，绘制了早期的黑河流域图，流域面积13.89万km^2。整个流域被划分为三个水文平衡区，分别为：黑河干流水系平衡区、北大河干流水系平衡区和马营-丰乐山前水系平衡区。
\n\n2）“九五”国家重点科技攻关项目子专题“黑河流域水资源合理利用与经济社会和生态环境协调发展研究”，考虑了县级行政单元的完整性，在第一个流域边界的基础上利用当时的行政界线对流域边界进行了修订，形成了目前“数字黑河”信息系统( http://heihe.westgis.ac.cn) 公布的黑河流域边界，流域面积12.87万km^2。水文单元的划分继承了原有的思路，共划分为三大水系，分别为东部水系、中部水系和西部水系。
\n\n3）在水利部黑河流域综合治理规划中，黑河流域面积被确定为14.29万km^2，水文单元被划分为中西部和东部两个独立的水系，面积分别为2.7万km2和11.6万km^2。
\n\n4）在2002-2006年开展的全国水资源综合规划中，“黄河流域（片）水资源综合规划”编制工作组于2005年编制《西北诸河水资源及其开发利用调查评价简要报告》，以水资源二级区和三级区为单位，完成了一系列自然地理与社会经济的统计表格和图件。在这次综合规划中，黑河流域的面积约为15.17万km^2，该方案并没有给出更加详细的子流域划分方案；
\n\n5）基于高精度数字高程模型（SRTM 和 ASTER GDEM），利用GIS水文分析方法确定的黑河流域边界。该边界经过了遥感和实地考察验证，在流域边界确定和子流域划分过程中同时还考虑了现代水资源利用现状。
", "ds_source": "高精度数字高程模型（SRTM 和 ASTER GDEM）
", "ds_process_way": "", "ds_quality": "数据质量良好
", "ds_acq_start_time": "2010-01-01 00:00:00", "ds_acq_end_time": "2010-12-31 00:00:00", "ds_acq_place": "黑河流域", "ds_acq_lon_east": 104.19972222222222, "ds_acq_lat_south": 37.7, "ds_acq_lon_west": 96.01666666666667, "ds_acq_lat_north": 43.25, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 1510451, "ds_files_count": 3, "ds_format": "矢量", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs ", "ds_thumbnail": "ba9321b3-1242-434f-96cb-9304376bf5d5.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "9c4867b1-5cb1-4de0-abeb-df42547bf41e", "ds_serv_man": "黑河计划数据管理中心", "ds_serv_phone": "0931-4967287", "ds_serv_mail": "westdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.4510" ], "quality_level": 3, "publish_time": "2020-04-08 17:10:01", "last_updated": "2023-08-23 16:46:55", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.Westdc.2020.463", "i18n": { "en": { "title": "Heihe River Basin boundary dataset", "ds_format": "Vector", "ds_source": "High precision digital elevation model (SRTM and aster GDEM)
", "ds_quality": "Good data quality
", "ds_ref_way": "", "ds_abstract": "The Heihe River Basin is the second largest inland river basin in China. In the past 30 years, a relatively complete basin observation system has been established in the Heihe River Basin, which has become an important inland river research base in China. Watersheds are important natural research units, but the boundaries of the Heihe River Basin are not unified. In order to facilitate user use of data, we have collected and organized five common Heihe River Basin boundaries in the literature:
\n1) From 1985 to 1986, China began to conduct systematic research on the Heihe River Basin as a whole. Based on basic investigations and a large amount of data, early maps of the Heihe River Basin were drawn, with a drainage area of 138900 km ^ 2. The entire watershed is divided into three hydrological balance zones, namely: the balance zone of the Heihe River main flow system, the balance zone of the Beida River main flow system, and the balance zone of the Maying Fengle Mountain front flow system
\n2) The sub theme of the \"Ninth Five Year Plan\" national key scientific and technological research project \"Research on the rational utilization of water resources in the Heihe River Basin and the coordinated development of economy, society, and ecological environment\" considers the integrity of county-level administrative units. Based on the first watershed boundary, the watershed boundary was revised using the administrative boundary at that time, forming the current \"Digital Heihe River\" information system（ http://heihe.westgis.ac.cn ）The Heihe River Basin boundary announced has a drainage area of 128700 km ^ 2. The division of hydrological units inherits the original idea and is divided into three major water systems, namely the eastern water system, the central water system, and the western water system
\n3) In the comprehensive management plan of the Heihe River Basin of the Ministry of Water Resources, the area of the Heihe River Basin is determined to be 142900 km2, and the hydrological unit is divided into two independent water systems in the central and western regions and the eastern regions, with areas of 27000 km2 and 116000 km2, respectively
\n4) In the national water resources comprehensive planning carried out from 2002 to 2006, the working group for the preparation of the \"Yellow River Basin (Area) Water Resources Comprehensive Planning\" compiled the \"Summary Report on the Investigation and Evaluation of Water Resources and Their Development and Utilization in Northwest China\" in 2005. A series of physical, geographical, and socio-economic statistical tables and maps were completed based on the secondary and tertiary water resources areas. In this comprehensive planning, the area of the Heihe River Basin is approximately 151700 km2, and the plan does not provide a more detailed sub basin division plan
\n5) Based on high-precision digital elevation models (SRTM and ASTER GDEM), the boundary of the Heihe River Basin was determined using GIS hydrological analysis methods. This boundary has been verified through remote sensing and field investigations, and modern water resource utilization has also been taken into account in the process of determining the watershed boundary and dividing sub watersheds
", "ds_time_res": "", "ds_acq_place": "Heihe River Basin", "ds_space_res": "", "ds_projection": "+proj=longlat +datum=WGS84 +no_defs ", "ds_process_way": "", "ds_ref_instruction": "In order to respect intellectual property rights, protect the rights and interests of data authors, expand the services of data centers, and evaluate the application potential of data, data users are requested to clearly indicate the data source and data authors in the research results (including published papers, works, data products and unpublished research reports, data products, etc.) produced by using data. For data reprinted (secondary or multiple releases), the author must also indicate the source of the original data." } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "ds_topic_tags": [ "基础地理", "地学信息", "流域边界" ], "ds_subject_tags": [ "自然地理学" ], "ds_class_tags": [], "ds_locus_tags": [ "黑河流域" ], "ds_time_tags": [ 2010 ], "ds_contributors": [ { "true_name": "黑河计划数据管理中心", "email": "westdc@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "" } ], "ds_meta_authors": [ { "true_name": "黑河计划数据管理中心", "email": "westdc@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "" } ], "ds_managers": [ { "true_name": "黑河计划数据管理中心", "email": "westdc@lzb.ac.cn", "work_for": "中国科学院西北生态环境资源研究院", "country": "" } ], "category": "基础地理" }