1987-2018年黄土丘陵沟壑区第三副区罗玉沟流域径流场观测数据集  

A dataset of runoff fields observations from Luoyugou watershed in the third sub-region of Loess Hilly-Gully Region from 1987 to 2018

作　　者：刘晓[1] 张耀南 赵国辉 苏广旭[1] 蒋志简 LIU Xiao;ZHANG Yaonan;ZHAO Guohui;SU Guangxu;JIANG Zhijian(Tianshui Experimental Station on Soil and Water Conservation Scientific,Yellow River Conservancy Commission of the Ministry of Water Resources,Tianshui,Gansu,741000,P.R.China;Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,P.R.China;National Cryosphere Desert Data Center,Lanzhou 730000,P.R.China)

机构地区：[1]黄河水利委员会天水水土保持科学试验站,甘肃天水741000 [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24-33,共10页China Scientific Data

摘　　要：径流场监测与试验是认识不同侵蚀形态水土流失特征与规律,揭示水土流失与其影响因素相互关系的重要手段。黄土丘陵沟壑区土壤水蚀严重,过程复杂多样,造成严重的水土流失,生态环境恶劣。为综合分析黄土丘陵水沙特征,黄河水利委员会天水水土保持科学试验站(以下简称“天水站”)自1943年以来,先后在黄土丘陵沟壑区第三副区建立了100余个径流场,进行坡面水土流失观测,主要观测降水、径流、泥沙等参数,截至2018年已累计观测了476场年的径流场数据成果。本数据集涵盖了1987–2018年期间罗玉沟流域部署的24个径流场的基本信息、径流场逐次径流泥沙测验数据集与土壤含水量观测数据。长期、连续、良好的水土流失观测记录,可为黄土丘陵沟壑区水土流失治理、土地利用方式转变、生态环境保护等提供基础数据支撑。Field-based monitoring of sediment runoff is an important means to understand the characteristics and laws of different types of soil erosion,and to reveal the relationship between soil erosion and its influencing factors.The soil erosion in the Loess Hilly-Gully Region is serious,and its process is complicated and diverse.It leads to serious soil and water loss,and ecological and environmental deterioration.In order to comprehensively analyze the characteristics of water and sediment in Loess hilly region,Tianshui Soil and Water Conservation Scientific Experimental Station of the Yellow River Conservancy Commission(hereinafter referred to as“Tianshui Station”)has established more than 100 runoff fields in the third sub–region of the Loess Hilly-Gully Region since 1943.Based on these runoff fields,Tianshui Station has conducted slope erosion observations.The main observational indicators include precipitation,runoff,sediment,and soil moisture.A total of 476 runoff field data results have been obtained in 2018.This dataset covers basic information about runoff fields,the runoff and sediment test data,and the observation records of soil moisture content of 24 runoff fields in Luoyugou watershed during 1987–2018.These long–term,continuous and good observation records of soil erosion can provide basic data support for soil erosion control,transformation of land-use models and ecological environment protection in the Loess Hilly-Gully Region.

关 键 词：罗玉沟流域 径流场 降水量 径流量 冲刷量 

分 类 号：S157.1[农业科学—土壤学]