Results 51 to 60 of about 1,387 (171)
Construction and application of the “integration of provincial, urban, and county-wide” geo-hazard meteorological risk warning system in Sichuan Province [PDF]
Improving the geo-hazard meteorological risk warning capabilities is an important component of the comprehensive prevention system for geological disasters.
Boqiang QU +6 more
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Shuitu Baochi Xuebao, 2023 作为水土流失重点预防保护区,大别山南麓裸地坡面水土流失严重,为探究该区典型裸地坡面径流泥沙对降雨的响应,利用自动化径流泥沙监测设备对裸地径流小区的降雨—径流-泥沙过程进行监测。以2020年全年侵蚀性降雨数据为基础,依据降雨峰值时序划分雨型,分析了4种雨型的累计产流产沙特征和次降雨的径流泥沙特征,并建立了累计产流产沙的最优函数模型。结果表明:(1)大别山南麓降雨事件的I30是影响降雨事件的泥沙量和径流系数的重要因素;前期集中型和中期集中型降雨事件的泥沙量与前48 h内的降雨量呈显著正相关。(2 ...
钟祎珣 +5 more
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The Applicability Evaluation of Multisource Precipitation Data for Runoff Simulation in a Typical Basin on the Tianshan Mountains [PDF]
[Objective] To explore the differences in precipitation characteristics for multisource precipitation products and their applicability for runoff simulation in an alpine basin on the Tianshan Mountains.
FENG Tongfei +5 more
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Soil Preferential Flow Characteristics in Coal Mine Subsidence Area under Different Rainfall Duration [PDF]
[Objective] Research on the preferential flow characteristics triggered by cracks in coal mining subsidence areas can provide support for scientific and rational development of water resource management and ecological management practice in the mining ...
DAI Bin +4 more
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Shuitu Baochi Xuebao, 2022 探究不同微地形特征对溅蚀的影响,为黄土高原水土保持耕作方式提供科学布设依据。选取杨凌塿土为研究对象,通过室内人工模拟降雨试验,降雨强度分别为20,40,60,80,100,120 mm/h,降雨历时10 min,研究不同耕作措施(平整地、点种、条播)下造成的微地形单元对溅蚀的影响特征。结果表明:(1)不同坡度条件下(0,6°,10°,13°,20°,26°)耕作微地形单元内的溅蚀总量随着降雨强度的增加呈线性增加(R2 ≥ 0.95)。(2 ...
王子轩, 吴发启, 陈科兵
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Accumulation Characteristics and Hydrological Effects of Litter in Mixed Robinia pseudoacacia Plantations [PDF]
[Objective] Studying the accumulation characteristics and hydrological effects of typical mixed Robinia pseudoacacia plantations is crucial for deeply investigating the water conservation capacity of artificial forests on the Loess Plateau.
CAO Zetao +5 more
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Shuitu Baochi Xuebao, 2018 为探究滇中高原优势群落常绿阔叶林植被对降雨雨滴动能的影响，于2016年和2017年5—9月，在天然降雨条件下运用自计雨量计和滤纸色斑法，通过定位监测磨盘山常绿阔叶林林外降雨和林内穿透雨特征及其雨滴特性，针对不同降雨条件研究了常绿阔叶林对雨滴动能等特征的影响。结果表明：林外的雨滴个数比林内降雨的雨滴个数多61.7%；随着雨量的增大，雨滴直径分布规律也呈逐渐增大的趋势；在小雨条件下，
曹光秀, 赵洋毅, 段旭, 薛杨
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20-year early warning for regional geo-hazards risk in China: 2003-2022 [PDF]
Early warning of geo-hazards based on meteorological factors has played an important supportive role in disaster prevention and mitigation in China since its inception in 2003. This paper summarizes the the 20-year development process, technical methods,
Chunli CHEN +7 more
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Shuitu Baochi Xuebao, 2003 在地表侵蚀过程特征的基础上,通过室内人工模拟降雨试验,运用三段降雨法,研究了这一 过程中地表糙度的变化,得出:降雨过程中,随机糙度的地表与有向糙度的地表变化不同, 前者呈增加趋势;而后者呈递成趋势,且随着雨强的增加,变化幅度增大.
郑子成, 何淑勤, 吴发启
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Shuitu Baochi Xuebao, 2019 为探究喀斯特裸坡坡面在不同降雨强度与坡度组合下径流过程及其径流总量特征。将表层岩溶带中孔（裂）隙视为可透水的"筛孔"，设定地下"二元"结构中孔（裂）隙度（5%）一致的情况下，探索裸坡地在不同降雨强度与坡度组合下地表/地下径流过程与总径流量的特征，并以此为基础揭示降雨强度、坡度对喀斯特坡面水文特征的影响。结果表明：（1）在较小降雨强度条件下（≤ 30 mm/h），裸坡地表并未出现产流迹象，以地下所产生的径流为主。在中大雨强（≥ 50 mm/h）条件下，裸坡地地表产流，且在设计降雨30 ...
李焱秋 +4 more
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