本数据集为1987-1989年黄土丘陵沟壑区第三副区罗玉沟流域径流场数据。为探索黄土丘陵沟壑区第三副区水土流失规律，了解不同自然因素、人为因素在水土流失过程中的作用及相互之间的定性定量关系，在“丘三区”具有代表性的罗玉沟集中布设不同坡度、不同措施的17个坡面径流小区，全年观测。主要观测降水量、径流、泥沙、地表植被观测等参数指标。采用雨量计观测降水量，集流池人工观测产流量，产沙量采用人工取样、置换法计算含沙量进而推算产沙量，植被覆盖度采用目估法观测，郁闭度采用测针法观测，土壤含水率采用土壤水分观测仪进行观测。本数据集包括径流泥沙测验成果表、土壤含水率实测成果表
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", "ds_process_way": "1、降水量观测：径流场观测降水起讫时间和一次降水总量。\n2、径流量观测：径流场只观测一次降水产生的径流总量（浑水），未观测径流的起讫时间和过程。量水设备为集流池，产流结束后，直接量水深，计算径流量。\n3、泥沙量观测：降水结束、径流终止后立即观测。将集流槽中泥、水扫入径流池中搅拌均匀，取柱状水样2～3个（总量在1000～3000ml），以混合后的500ml水样作为标准样，含沙量采用置换法（比重瓶法）测定。\n4、地表植被观测：地表植被生育期、株高、生物产量、覆盖度、郁闭度的观测均按有关规范执行。", "ds_quality": "
径流小区按照“水土保持试验规范”（SD239）和“水土保持试验规程”（SL419）的规定进行数据的观测、整理、整编。观测数据整编录入过程中经过四级人工校核，分别是制表、初校、复校、审核，以确保数据质量。观测资料按照“四随”要求，随测、随算、随整理、随分析，发现观测的差错和不合理记录，及时进行处理、改正，并备注说明。 待全年观测工作结束后，利用计算机程序进行在站整编，在站整编成果人工复核无误后存档。资料整编严格依据相关观测、整编规范规程，按照一校、二校和审核、复审、复核的过程开展。
", "ds_acq_start_time": "1987-01-01 00:00:00", "ds_acq_end_time": "1989-12-31 00:00:00", "ds_acq_place": "甘肃省天水市秦州区罗玉沟流域", "ds_acq_lon_east": 105.7388888888889, "ds_acq_lat_south": 34.58888888888889, "ds_acq_lon_west": 105.50833333333334, "ds_acq_lat_north": 34.65555555555555, "ds_acq_alt_low": 1190.0, "ds_acq_alt_high": 1895.3, "ds_share_type": "apply-access", "ds_total_size": 83207, "ds_files_count": 3, "ds_format": "Excel", "ds_space_res": null, "ds_time_res": "", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "f9b2c14e-12b7-445e-b6a4-21083500be1d.png", "ds_thumb_from": 2, "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": "2022-08-16 11:35:59", "last_updated": "2023-05-16 17:35:40", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.HWTSZhan.2020.37", "i18n": { "en": { "title": "Runoff data set of Luoyugou watershed in the third sub region of Loess Hilly and gully region, 1987-1989", "ds_format": "", "ds_source": "", "ds_quality": "", "ds_ref_way": "", "ds_abstract": "", "ds_time_res": "", "ds_acq_place": "", "ds_space_res": "", "ds_projection": "", "ds_process_way": "", "ds_ref_instruction": " " } }, "submit_center_id": "ncdc", "data_level": 0, "recommendation_value": 0, "license_type": "https://creativecommons.org/licenses/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, "belong_to_nieer": false, "ds_topic_tags": [ "泥沙量", "降水量", "径流量", "径流小区" ], "ds_subject_tags": [], "ds_class_tags": [], "ds_locus_tags": [ "天水市", "秦州区", "罗玉沟流域", "甘肃省" ], "ds_time_tags": [ 1987, 1988, 1989 ], "ds_contributors": [ { "true_name": "黄河水土保持天水治理监督局", "email": "hwtsywk@163.com", "work_for": "黄河水土保持天水治理监督局（天水水土保持科学试验站）", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "刘晓", "email": "", "work_for": "黄河水土保持天水治理监督局（天水水土保持科学试验站）", "country": "中国" } ], "ds_managers": [ { "true_name": "黄河水土保持天水治理监督局", "email": "hwtsywk@163.com", "work_for": "黄河水土保持天水治理监督局（天水水土保持科学试验站）", "country": "中国" } ], "category": "水土保持" }