Results 61 to 70 of about 6,313,283 (262)

Analysis of Land Use Patterns in Pure Karst, Non-karst and Subkarst Areas Based on Terrain Gradient

open access: yesShuitu baochi yanjiu, 2021
To explore the spatial distribution characteristics of topographic gradient of land use in pure karst,semi-karst and non-karst,Qianzhong area was taken as the research area,and opographic position index and distribution index were used.
LU Qingping, ZHAO Cuiwei, WANG Jie
doaj  

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

open access: yes, 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   +7 more
core   +1 more source

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

open access: yes, 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   +20 more
core   +1 more source

Renewable energy mapping in Northeastern Morocco: A geographic information system‐based comparison of geothermal, solar, and wind potential in the Guercif‐Guilliz and Beni Snassen regions

open access: yesDeep Underground Science and Engineering, EarlyView.
The graphical abstract summarizes a geographic information system (GIS)‐based synthesis of renewable energy resources in Northeastern Morocco, focusing on the Guercif‐Guilliz and Beni Snassen areas. It visually presents the spatial distribution of solar irradiation and wind energy potential derived from available datasets, alongside their relationship ...
Meryem Redouane   +5 more
wiley   +1 more source

The Development of Mining Potentials in Karst Area in Pacitan District [PDF]

open access: yes, 2010
Karst area is an area that is composed by limestone which is rich in biodiversity and mineral resources. Karst Area in Pacitan District is “Pegunungan Sewu Karst” that is proclaimed as a Karst Area in the World or World Heritage 2004 by President (Kompas,
Gusmida, Abdul Malik
core   +1 more source

A General Description of Karst Types

open access: yesEncyclopedia, 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

The hydrogeology of bromate contamination in the Hertfordshire Chalk: incorporating karst in predictive models [PDF]

open access: yes, 2010
Point source contamination of groundwater by bromate (BrO3^-) in the Hertfordshire Chalk Aquifer forced the closure in 2000, of a major public supply ground- water abstraction and presents a continuing threat to regional water resources.
Cook, S.J.
core  

Vertical shaft monitoring to assess mixing processes in karst aquifers.

open access: yes, 2023
https://digitalcommons.usf.edu/sinkhole_2022/ProceedingswithProgram/Full_Proceedings/1/Karst springs often are the key to inferring the global functioning of their whole catchment area.
Andreo-Navarro, Bartolomé   +3 more
core  

Advances in Hypogene Karst Studies National Cave & Karst Management Symposia NCKRI Symposia 1 [PDF]

open access: yes, 2022
Advances in Hypogene Karst Studies includes multiple examples of hypogene processes that demonstrate the variability and breadth of hypogene cave and karst systems with respect to speleogenetic evolution.
National Cave and Karst Research Institute
core  

Taxon‐dependent multisite species turnover in fragmented habitats: comparing zeta diversity across birds, butterflies, and cursorial hunting spiders

open access: yesEcography, EarlyView.
Habitat fragmentation alters species diversity and reshapes community composition. However, conventional pairwise approaches to compositional variation (i.e. beta diversity metrics) do not explicitly characterize how species sharing or turnover change with the number of habitat patches.
Shirui Yu   +11 more
wiley   +1 more source

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