本数据集为2008-2010年黄土丘陵沟壑区第三副区罗玉沟流域径流场数据。2006年在罗玉沟试验场集中布设不同坡度、不同措施的17个坡面径流小区，主要观测指标为降水量、径流、泥沙、地表植被、土壤含水率等参数指标。雨量计观测降水量；集流池人工观测产流量；人工取沙样、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。数据集包括径流小区基本情况表、逐次径流泥沙测验成果表。
", "ds_source": "人工定点观测
", "ds_process_way": "降水量观测：径流场观测降水起讫时间和一次降水总量。\n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。\n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。\n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": "按照“水土保持试验规范”（SD239）和“水土保持试验规程”（SL419）的规定由专业技术人员进行数据的观测、整理、整编。", "ds_acq_start_time": "2008-01-01 00:00:00", "ds_acq_end_time": "2010-12-31 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": 112471, "ds_files_count": 3, "ds_format": "Excel", "ds_space_res": null, "ds_time_res": "日", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "b18884f2-9b9b-4906-904d-1a72a50d769a.jpg", "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": "2022-08-10 15:44:29", "last_updated": "2023-05-16 17:34:31", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.HWTSZhan.2020.35", "i18n": { "en": { "title": "Runoff data set of Luoyugou watershed in the third sub region of Loess Hilly and gully region from 2008 to 2010", "ds_format": "", "ds_source": "
<pre><code> <p>Artificial fixed point observation</p>\n <pre><code> <p>According to the provisions of \"soil and water conservation test specification\" (sd239) and \"soil and water conservation test specification\" (sl419), the data are observed, sorted and compiled by professional technicians.\n <pre><code> <p>This data set is the runoff field data of Luoyugou watershed in the third sub region of Loess Hilly and gully region from 2008 to 2010. In 2006, 17 slope runoff plots with different slopes and measures were set up in Luoyugou experimental site. The main observation indexes were precipitation, runoff, sediment, surface vegetation, soil moisture and other parameters. Precipitation is observed by rain gauge; runoff is observed by catchment basin; sediment concentration is calculated by artificial sampling and replacement method, and then sediment yield is calculated; vegetation coverage is observed by visual estimation method, and canopy density is observed by needle method. The data set includes the basic information of runoff plots and the results of successive runoff and sediment tests. </p>\n <pre><code> <p>Precipitation observation: runoff field observation of the beginning and ending time of precipitation and the total amount of precipitation.\nRunoff observation: the total amount of runoff (muddy water) generated by precipitation is observed only once in the runoff field, and the starting and ending time and process of runoff are not observed. The water measuring equipment is a collecting basin. After the discharge is finished, the water depth is measured directly and the runoff is calculated.\nSediment volume observation: immediately after the end of precipitation and runoff. The sludge and water in the collecting channel are swept into the runoff pool and stirred evenly. Two to three columnar water samples (1000-3000ml in total) are taken. The mixed 500ml water sample is taken as the standard sample. The sediment concentration is determined by displacement method (Pycnometer method).\nObservation of surface vegetation: Observation of growth period, plant height, biological yield, coverage and canopy density of surface vegetation shall be carried out according to relevant standards.
\n", "ds_ref_instruction": " If you need to apply for use, please contact the data contributor \"Yellow River water and soil conservation and Tianshui water and soil conservation scientific test station\" (Tianshui water and soil conservation scientific test station) hwtsywk@163.com Tel: 18709464263" } }, "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": [ "降雨量", "雨强", "径流深度" ], "ds_subject_tags": [], "ds_class_tags": [], "ds_locus_tags": [ "天水", "罗玉沟流域", "甘肃省" ], "ds_time_tags": [ 2008, 2009, 2010 ], "ds_contributors": [ { "true_name": "黄河水土保持天水治理监督局（水土保持天水科学试验站）", "email": "hwtsbgs@163.com", "work_for": "黄河水土保持天水治理监督局（水土保持天水科学试验站）", "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" }