本数据集为2024年黄土高塬沟壑区南小河沟流域董庄沟（非治理沟）降水量、径流泥沙量、蒸发量的观测数据。董庄沟（非治理沟）为南小河沟流域中的一条支沟，测站以上控制面积为1.12km²。董庄沟流域内无水土保持治理措施，保持原有生态环境。董庄沟径流站设在董庄沟主沟道距董庄沟沟口420m处，作为非治理沟道与杨家沟进行观测对比，同时作为黄土高塬沟壑区未治理典型小流域研究其水土流失规律。本数据集主要为董庄沟雨量站降水量观测数据、董庄沟蒸发量站观测数据及董庄沟径流站径流泥沙观测数据。
", "ds_source": "仪器连续观测、人工定时观测
", "ds_process_way": "降水观测：采用普通雨量计（SM1）和虹吸式自己雨量计（DSJ-2）进行观测。SM1型采用8时、20时两段制进行全年观测，主要观测降水起止时间，统计降水量，当降水间歇时间大于15min间歇前后作为两次降水进行记载，当间歇时间小于15min则作为一次降水观测记载，如果一次降水跨过8时、20时应在8时、20时加测。DSJ-2型采用24段制进行汛期观测（4月1日-10月31日）。\n蒸发量观测：采用小型蒸发皿（HY.AM3）每日8时观测一次，封冻期间每五日观测一次。蒸发皿的蒸发量用同规格雨量杯或专用台秤观测。\n径流泥沙观测：采用三角槽人工断面布设水位尺进行观测。非汛期基流采用 2 段制，即 8 时、20 时各观测一次；汛期基流采用4段制，即2时、8时、14时、20时各观测一次，汛期时段 4～10月。洪水期或者水位变化急剧时期，在控制起涨、峰顶、落平和其它水位涨落重要转折点水位的前提下，大致按水位变化均匀布设测次，峰顶附近不少于 3 次，一般单峰不少于 11 次，落平\n后 30min 到 1.0h 观测一次，要求能测得各次峰、谷和完整的水位变化过程。
", "ds_quality": "数据整编录入过程经过四级人工校核，分别是制表、初校、复校、审核，确保数据质量。
", "ds_acq_start_time": "2024-01-01 00:00:00", "ds_acq_end_time": "2024-12-31 00:00:00", "ds_acq_place": "甘肃省庆阳市西峰区后官寨乡南小河沟流域董庄沟", "ds_acq_lon_east": 107.5411111111111, "ds_acq_lat_south": 35.6875, "ds_acq_lon_west": 107.54694444444445, "ds_acq_lat_north": 35.70444444444445, "ds_acq_alt_low": 1152.0, "ds_acq_alt_high": 1353.0, "ds_share_type": "apply-access", "ds_total_size": 243100, "ds_files_count": 9, "ds_format": "Excel表格", "ds_space_res": null, "ds_time_res": "日、次", "ds_coordinate": "WGS84", "ds_projection": "", "ds_thumbnail": "de610469-76e8-432a-975b-342e6b079377.png", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": null, "organization_id": "8f345532-a01e-49ca-a880-641bc176ede9", "ds_serv_man": "李红星", "ds_serv_phone": "0931-4967596", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [], "quality_level": 3, "publish_time": "2025-11-27 15:47:14", "last_updated": "2025-12-04 15:45:00", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.NCDC.HWXFZHAN.DB7012.2025", "i18n": { "en": { "title": "2024 Observation Dataset of Dongzhuanggou (Non Governance) in Nanxiaohegou Watershed of Loess Plateau Gully Region", "ds_format": "", "ds_source": "Continuous instrument observation and manual timed observation
", "ds_quality": "The data integration and input process undergoes four levels of manual verification, namely tabulation, initial proofreading, re proofreading, and auditing, to ensure data quality.
", "ds_ref_way": "", "ds_abstract": "This dataset contains observational data on precipitation, runoff sediment, and evaporation in Dongzhuanggou (non treated gully) of Nanxiaohegou watershed in the Loess Plateau gully region in 2023. Dongzhuanggou (non governance ditch) is a tributary ditch in the Nanxiaohegou watershed, with a controlled area of 1.12km ² above the measuring station. There are no soil and water conservation measures in the Dongzhuanggou watershed to maintain the original ecological environment. The Dongzhuanggou runoff station is located at a distance of 420m from the mouth of the main channel of Dongzhuanggou. It serves as a non treated channel for observation and comparison with Yangjiagou, and also as a typical small watershed in the loess plateau gully area for studying its soil erosion patterns. This dataset mainly consists of precipitation observation data from Dongzhuanggou rainfall station, evaporation observation data from Dongzhuanggou evaporation station, and runoff sediment observation data from Dongzhuanggou runoff station
", "ds_time_res": "日、次", "ds_acq_place": "Dongzhuanggou, Nanxiaohegou watershed, Houguanzhai Township, Xifeng District, Qingyang City, Gansu Province", "ds_space_res": "", "ds_projection": "", "ds_process_way": "Precipitation observation: Ordinary rain gauge (SM1) and siphon self rainfall gauge (DSJ-2) are used for observation. The SM1 model adopts a two stage system of 8 hours and 20 hours for annual observation, mainly observing the start and end time of precipitation, and calculating precipitation. When the precipitation interval is greater than 15 minutes, it is recorded as two precipitation observations before and after the interval, and when the interval is less than 15 minutes, it is recorded as one precipitation observation. If a precipitation exceeds 8 hours and 20 hours, it should be added at 8 hours and 20 hours. The DSJ-2 model adopts a 24-hour system for flood season observation (from April 1st to October 31st).\nEvaporation observation: Use a small evaporating dish (HY.AM3) to observe once a day at 8 o'clock, and observe once every five days during the freezing period. The evaporation capacity of the evaporating dish is observed using a rainfall cup of the same specification or a dedicated platform scale.\nObservation of runoff and sediment: A water level gauge is set up using a triangular groove artificial cross-section for observation. The non flood season base flow adopts a two-stage system, with one observation at 8:00 and one observation at 20:00 respectively; The basic flow during the flood season adopts a four stage system, which is to observe once at 2:00, 8:00, 14:00, and 20:00 respectively. The flood season is from April to October. During flood periods or periods of rapid water level changes, under the premise of controlling the water level at important turning points such as rising, peak, falling, and other water level fluctuations, roughly evenly arrange measurement times according to the water level changes. There should be no less than 3 times near the peak, and generally no less than 11 times for a single peak\nObserve once from the last 30 minutes to 1.0 hours, and it is required to be able to measure each peak, valley, and complete water level change process.
", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "license_type": "CC BY 4.0", "ds_topic_tags": [ "降水量", "平均流量", "平均含沙量", "平均输沙量", "径流量", "侵蚀模数" ], "ds_subject_tags": [], "ds_class_tags": [], "ds_locus_tags": [ "庆阳", "西峰区", "南小河沟流域", "董庄沟", "甘肃省" ], "ds_time_tags": [ 2024 ], "ds_contributors": [ { "true_name": "黄河水利委员会西峰水土保持科学试验站", "email": "18526328@qq.com", "work_for": "黄河水利委员会西峰水土保持科学试验站", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "袁静", "email": "317806317@qq.com", "work_for": "黄河水利委员会西峰水土保持科学试验站", "country": "中国" } ], "ds_managers": [ { "true_name": "袁静", "email": "317806317@qq.com", "work_for": "黄河水利委员会西峰水土保持科学试验站", "country": "中国" } ], "category": "水土保持" }