1954-2018年黄土高塬沟壑区南小河沟流域杨家沟控制站径流泥沙观测数据集  

A dataset of runoff and sediment observation on Yangjiagou Control Station of Nanxiaohegou watershed in the gully regions of Loess Plateau from 1954 to 2018

作　　者：焦念[1] 康建芳 许小梅[1] 赵彦博 张耀南 JIAO Nian;KANG Jianfang;XU Xiaomei;ZHAO Yanbo;ZHANG Yaonan(Xifeng Experiment Station on Soil and Water Conservation,Yellow River Conservancy Commission of the Ministry of Water Resources,QingYang 745000,P.R.China;Northwest Institute of Eco-Environment and Resources,CAS,LanZhou 730000,P.R.China;National Cryosphere Desert Data Center,LanZhou 730000,P.R.China)

机构地区：[1]黄河水利委员会西峰水土保持科学试验站,甘肃庆阳745000 [2]中国科学院西北生态环境资源研究院,兰州730000 [3]国家冰川冻土沙漠科学数据中心,兰州730000

出　　处：《中国科学数据（中英文网络版）》2021年第3期69-81,共13页China Scientific Data

基　　金：水利部事业经常性项目(126201340005150007)。

摘　　要：黄河水利委员会西峰水土保持科学试验站(以下简称“西峰站”)1954年在西峰区南小河沟流域杨家沟支沟沟口布设杨家沟径流观测站。通过测流断面观测水位、流速和含沙量,计算出流量、输沙量、洪水总量、洪水输沙量、单位面积径流量、径流系数、逐日平均流量、逐日平均含沙量、逐日平均悬移质输沙率等数据,经整理、校对、复校、审核后形成观测整编数据。本数据集包括1954–2018年降水量、径流量和泥沙量等数据,可用于分析流域主要降雨特征,确定不同时间段流域产流产沙对典型降雨特征指标的响应关系,揭示不同降雨和植物措施条件下流域产流产沙特征;识别流域降雨和植物措施对不同时间段水沙变化的贡献及作用机制,为黄土高塬沟壑区的水沙变化研究提供科学依据,对推动小流域综合治理,同时为当地水土保持生态建设提供有益支撑。Xifeng Experiment Station on Soil and Water Conservation,Yellow River Conservancy Commission of the Ministry of Water Resources(hereinafter referred to as"Xifeng station")set up Yangjiagou Runoff and Sediment Observation Station at the mouth of Yangjiagou branch in the Nanxiaohegou valley,Xifeng District in 1954.Through flow section observation water level,flow velocity and sediment concentration,we calculated the flow,sediment discharge and flood volume,flood sediment discharge and runoff,runoff coefficient of per unit area,average daily traffic,daily average sediment concentration,daily average suspended load transport rate data.We obtained the reorganized observation data after the process of collation,proofreading,re-checking and reviewing.This dataset consists of data on precipitation,runoff and sediment from 1954 to 2018.It can be used to analyze the main rainfall characteristics of the basin,determine the response relationship between sediment yield and runoff in different time periods and typical rainfall characteristics,and reveal the sediment yield and runoff characteristics of the watershed under different rainfall and plant measures.The dataset can be used to identify the contribution and mechanism of rainfall and plant measures to water and sediment change in different time periods.As a scientific basis for the study on water and sediment change in the gully region of the Loess Plateau,it can promote the comprehensive management of small watershed,and provide beneficial support for the ecological construction of local water and soil conservation.

关 键 词：南小河沟 杨家沟 降雨 径流泥沙 数据集 

分 类 号：S157.1[农业科学—土壤学]