Shuitu Baochi Xuebao目的探究干旱河谷区土壤有机碳组分及其稳定性变化特征，明确环境因子与土壤有机碳组分及其稳定性之间的关系，为生态脆弱区固碳减排的系统管理提供依据。方法选择西藏波密干旱河谷区不同坡向（阴坡、阳坡、半阴坡、半阳坡）、坡位（坡下、坡中、坡上） 0~30 cm土壤为研究对象，测定土壤理化性质、土壤有机碳及其组分。结果1）阴坡土壤有机碳质量分数为11.37~34.74 g/kg，相较于半阴坡、半阳坡、阳坡分别提高55%、138%、292%。土壤颗粒有机碳、易氧化有机碳、矿质结合态有机碳 ...
褚保森 +6 more
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Shuitu Baochi Xuebao, 2017 通过室内放水冲刷试验，研究在坡沟系统土壤侵蚀过程中，不同坡面植被格局对能量的调控作用及其对水沙响应关系的影响，并建立不同坡面植被格局下基于能量参数的侵蚀产沙方程，深入了解能量与侵蚀产沙之间的响应关系。结果表明：（1）相比于裸坡，在坡面有植被覆盖的情况下，径流功率大幅度降低，植被能够有效地削减径流功率，起到保护土壤的作用；在不同时刻下，不同坡面植被格局的单位水流功率在坡面较小，进入沟道后单位水流功率急剧上升，呈“N”形曲线分布，经过SPSS软件分析，坡面植被格局对单位水流功率的影响不显著（P>0.05 ...
苏远逸, 任宗萍
doaj
Research on Reservoir Prediction Automatic Optimization Model Based on Seismic Data [PDF]
, 2017 地震数据中蕴含着丰富的有关地下的地质构造、底层岩性和流体物性等信息，是储层预测的数据基础。但随着我国油气勘探开发的水平越来越高和勘探领域的不断延伸，地震属性数量和种类膨胀式增长，储层预测难度增大。数据挖掘是一种有效进行储层预测手段。本文基于数据挖掘中的特征降维方法和聚类分析构造了储层预测模型。 基于数据挖掘的储层预测模型在实际使用中经常需要人工设置参数。如果使用者不了解数据挖掘技术，设置参数是一个困难的事。储层预测模型参数选择的好坏对其预测结果有很大影响。储层预测模型一般会有多个参数 ...
鲍彬彬
core
Controlling influence of the “perched water structure” on rainfall-induced landslide: A case study of the Yaogou landslide in Zhushan County, Hubei Province [PDF]
The Yaogou landslide, located in Zhushan County, Hubei Province, exhibits distinctive aquifer characteristics and varying permeability, leading to the retention of groundwater within the landslide after rainfall, forming confined water.
Lihua LI +3 more
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Study on the method for determining the position of landslide slip surface based on “D” type inclinometer curve [PDF]
In borehole monitoring for deep displacement, the abrupt characteristics of inclinometer curves are the key basis for identifying the sliding surface. Previous studies have summarized several types of inclinometer curve patterns that exhibit significant ...
Hao CHEN, Honggang WU, Qing CHEN
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Shuitu Baochi Xuebao目的受气象条件、植被特征、土壤性质和地形因子等差异影响，坡面土壤水分沿坡面分布的差异导致土壤储水量有明显空间变异，但目前对森林坡面不同坡位土壤水分动态及其影响因素的解析还不系统。方法以六盘山半湿润区华北落叶松林典型坡面为研究对象，于2023年5至10月监测了坡上、坡中和坡下3个坡位0~80 cm土层土壤水分体积分数变化，并同步观测气象条件、植被结构和土壤水文物理性质等。结果1）土壤储水量存在坡位差异，其平均值表现为坡中>坡下>坡上，但土壤储水量的波动在坡中最大。2）在时间上 ...
刘姗 +6 more
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Real-time filtering and application of landslide GNSS deformation data based on dynamic frequency conversion [PDF]
GNSS deformation monitoring devices are crucial ground monitoring tools for capturing multi-directional landslide deformations and their development trends. However, precision and random errors during monitoring often leads to significant fluctuations in
Dehao XIU +3 more
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Analysis on the response of the dip slope with weak layer to earthquake [PDF]
Taking the down-slope with weak strata in the south of Fushun west open-pit mine as the reference prototype, numerical simulations of the down-slope with weak strata were conducted through FLAC3D software, which included the simulation of actual ground ...
Laigui WANG +3 more
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Experimental Study on Static and Dynamic Characteristics of Residual Soil and Improved Soil in One Site in Zhangzhou Developing Zone [PDF]
, 2012 论文以残积土及其改良土的静、动力特性试验研究为主题，选取漳州开发区某工地残积土为试样，利用无侧限压缩仪、静三轴仪和动三轴仪为主要试验设备，测试试样的静力特性和动力反应，从而研究含水率、水泥掺入量等因素对残积土及其改良土的静、动力特性的影响。主要研究内容如下： （1）制备不同含水率和不同水泥掺入量的土样，进行无侧限抗压强度试验，测定其应力—应变曲线，通过试验结果分析，研究试样极限抗压强度随含水率、水泥掺入量变化关系。 （2）进行静三轴固结不排水试验，测定不同含水率和不同水泥掺入量的土样的应力—应变曲线 ...
朱梦芸
core
Failure mechanism and controlling measures of cut slope instability at Shouling temple, Luhuo County, Sichuan Province [PDF]
The Shouling temple in Luhuo County, Sichuan faces an urgent situation due to the construction of the Future Hall. A five-level excavation slope with a height of 21.8 m and a slope angle of 55° to 75° was formed on the northwest side of the site, leading
Gang LUO, Heming REN, Xingzheng WANG
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