Results 41 to 50 of about 20,988 (296)

Migration and leaching characteristics of base cation: indicating environmental effects on soil alkalinity in a karst area

, 2018
In karst areas, rock dissolution often results in the development of underground networks, which act as subterranean pathways for rapid water and nutrient (and possibly soil) loss during precipitation events.
Yang Gao, Timothy A. Quine, Green, S. M., Dungait, J. A. J., Sophie M. Green, Nianpeng He, Xianwei Song, Gao, Y., Wen, X., He, N., Mingzhen Ma, Peng, T., Song, X., Quine, T. A., Ma, M., Xuefa Wen, Xiong, B., Tao Peng, Bailian Xiong, Jennifer A. J. Dungait   +19 more
core   +1 more source

Slip versus dilation tendency parameter space as a tool for prospecting structurally controlled geothermal systems in greenfield: insights from the greater Ruhr region

Deep Underground Science and Engineering, EarlyView.
This study highlights that with the static and time‐dependent evolution of slip versus dilation tendency parameter space, structurally controlled deep geothermal systems can be selected within areas of higher permeability and lower seismic hazard. Abstract Faults play a vital role in the Earth's hydraulic system by facilitating fluid flow when dilating
Michal Kruszewski, Alessandro Verdecchia, Oliver Heidbach, Rebecca M. Harrington, David Healy   +4 more
wiley   +1 more source

Effect of Gravel on Soil Porosity and Water Infiltration of Lime Soil in Southwest Karst Area

Shuitu Baochi Xuebao
[Objective] Gravel is an important factor affecting soil porosity and water infiltration. Therefore, it is of great significance to determine the specific soil porosity characteristics that are impacted by gravel-induced changes.
HUANG Guangling, WANG Xing, XU Qinxue, AO Liman, QIN Zhanbo, ZHANG Shuaipu   +5 more
doaj   +1 more source

Integrating field and numerical modeling methods for applied urban karst hydrogeology [PDF]

, 2009
Infrastructures constructed on unstable geologic formations are prone to subsidence. Data have been collected in the context of an upgrading project for a highway located beside a river dam constructed on gypsum-bearing formations.
J. Epting, D. Romanov, Epting, J., Kaufmann, G., Romanov, D., Huggenberger, P., P. Huggenberger, G. Kaufmann   +7 more
core  

Random finite element analysis on ground subsidence caused by tunnel excavation in karst regions with spatial variable soil

Deep Underground Science and Engineering, EarlyView.
This study investigates ground subsidence during tunnel excavation in karst areas, highlighting the combined effects of karst cave proximity, cave size, and soil spatial variability. Findings suggest that shorter cave distances and larger cave sizes increase subsidence variability, and a modified Peck formula is proposed for more accurate subsidence ...
Zhenghong Su, Yong Fu, Miaomiao Sun, Kailin Ding, Ying Zhao   +4 more
wiley   +1 more source

Mechanism of karst ground collapse and evaluation of disaster risk in Chengnan community, Yingde City, China

Carsologica Sinica
Karst ground collapse is one of the most common geological hazards in karst areas. It is characterized by concealment, sudden occurrence and inhomogeneity, along with various other complex features.
Heng WANG, Yijuan YAO, Kui ZHAO, Yudao CHEN, Jiaxiao QIN   +4 more
doaj   +1 more source

A General Description of Karst Types

Encyclopedia, 2022
This study includes a general description of the Earth’s karst types based on literary data and field observations. An improved classification of karst types distinguishes the main group, group, and subgroup; and, a division of karst types involves a ...
Márton Veress
doaj   +1 more source

Strengthening urban resilience in China through underground infrastructures management: Addressing global climate challenges with technological solutions

Deep Underground Science and Engineering, EarlyView.
This paper explores how climate‐resilient technologies, such as smart grids, digital twins, and self‐healing materials, can enhance urban resilience. It highlights the urgent need for proactive planning, public‐private collaboration, and data‐driven innovation to future‐proof underground infrastructure amid accelerating climate and urban pressures ...
Kai Chen Goh, Tonni Agustiono Kurniawan, Christia Meidiana, Abdelkader Anouzla, Faissal Aziz, Imran Ali, Joan Cecilia C. Casila, M. Imran Khan, Dongdong Zhang, Meihui Jiang, Mohd Hafiz Dzarfan Othman, Md Munir Hayet Khan, Kasun Kumara Dissanayake   +12 more
wiley   +1 more source

Biological Characteristics of a Novel Bibenzyl Synthase (DoBS1) Gene from Dendrobium officinale Catalyzing Dihydroresveratrol Synthesis

Molecules
Bibenzyl compounds are one of the most important bioactive components of natural medicine. However, Dendrobium officinale as a traditional herbal medicine is rich in bibenzyl compounds and performs functions such as acting as an antioxidant, inhibiting ...
Shao-Guo Zhou, Ke Zhong, Feng-Xia Yan, Fan Tian, Chang-Sha Luo, Hang-Cheng Yu, Zai-Qi Luo, Xi-Min Zhang   +7 more
doaj   +1 more source

Study on the enrichment characteristics and water supply significance of karst groundwater in the Yili river basin, Wumeng Mountain area

, 2023
The deepened karst development caused by its uneven development of karst and significant uplift of the Cenozoic crust results in the extremely uneven spatial and temporal distribution of karst groundwater, which makes it very difficult to extract and ...
Jinxian ZHONG, Yeqi TANG, Xinyu CEN, Guoshi DENG   +3 more
core   +1 more source