Results 61 to 70 of about 153,181 (207)

Physical and Chemical Controls on Suffosion Development in Gypsic Soil, Culberson County, Texas [PDF]

open access: yes, 2018
In the Gypsum Plain, suffosion processes have encouraged road failure through dissolution and transport of gypsic soils; however, no prior research has been conducted within the Delaware Basin in regard to these processes.
Morris, Jonah
core   +1 more source

Groundwater pollution in quaternary aquifer of Vitoria - Gasteiz (Basque Country, Spain) [PDF]

open access: yes, 1997
As a result of diverse changes in land use and in water-resource management in the high basin of the Zadorra River (Basque Country), an important loss of water resources and an intense contamination by nitrogen compounds has taken place.
Antigüedad, Iñaki   +5 more
core   +1 more source

Analysis of karst leakage conditions and pipeline characteristics in the main blocked area of Yibasan reservoir, Yunnan

open access: yesCarsologica Sinica
Reservoir leakage is a significant challenge in the construction of water conservancy projects in karst areas. Yibasan reservoir is a key water source project planned for Wenshan Prefecture in Yunnan Province.
Chen SONG   +7 more
doaj   +1 more source

A Student-centered Regional Planning Group Activity for Non-science Majors [PDF]

open access: yes, 2004
NOTE: This is a large file, 81.4 mb in size! This article describes the use of an authentic regional planning public workshop activity which was modified and used to introduce the Earth surface portion of an Earth Science lecture course for undergraduate
Mark Abolins
core   +1 more source

Strategies for the sustainable tourism development of Guanyan cave based on SWOT-AHP analysis

open access: yesCarsologica Sinica
Predominantly forming in the Devonian light gray, thick-bedded limestone, Guanyan cave is located in Caoping township, Yanshan district, Guilin. In 1985, Guanyan cave was explored by a joint Sino-British expedition team.
Yadong DENG   +8 more
doaj   +1 more source

Occurrence of 'Antrobathynella stammeri' (Jakobi, 1954) (Crustacea: Syncarida: Bathynellidae) in the hyporheic zones of two English karst rivers [PDF]

open access: yes, 2008
This paper reports the first records of Antrobathynella stammeri in the British Isles since 1985. Numerous individuals were observed in hyporheic water extracted from the River Skirfare (Yorkshire, UK), whilst, in an independent study, a single confirmed
Dunscombe, MP   +2 more
core  

Subterranean glacial spillways: an example from the karst of South Wales, UK [PDF]

open access: yes, 2013
Many karst areas in the UK have been glaciated one or more times during the last 0.5 Ma, yet there are few documented examples of caves in these regions being affected by glacial processes other than erosion.
Farrant, Andrew R.   +2 more
core  

Cumulative Impacts of Development on Water Quality and Endangered Species in the Bull and West Bull Creek Watersheds [PDF]

open access: yes, 1993
This article mentions Waller Creek as a representative for urban creeks in Austin In comparison to the focus of this report, Bull Creek, Waller Creek has a notably lower Water Quality Index.Waller Creek Working ...
City of Austin Environmental and Conservation Services Department
core   +1 more source

Key technical points for integrated surface water-groundwater surveys and assessment in karst basins of South China

open access: yesCarsologica Sinica
This study focuses on the karst region of South China, centered in Guizhou Province and encompassing Yunnan, Guangxi, Hunan, Hubei, Sichuan, Chongqing, and Guangdong.
Changsong ZHOU   +14 more
doaj   +1 more source

Assesing the hydrogeological functioning of an evaporite karst system coupling tritium and physicochemical data [PDF]

open access: yes, 2019
Discharge rate, electrical conductivity and water temperature have been continuously recorded in an evaporite karst spring located in S Spain and 3H determinations of spring water were performed.
Andreo-Navarro, Bartolome   +3 more
core  

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