Results 41 to 50 of about 6,047,181 (260)

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

open access: yesShuitu 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   +5 more
doaj   +1 more source

Investigations of rapid groundwater flow and karst in the Chalk [PDF]

open access: yes, 2009
This study, with fieldwork undertaken in the Pang and Lambourn catchments in Southern England, investigates the occurrence and distribution of rapid groundwater flow in the Chalk and evaluates the degree of karstification.
Maurice, L.
core  

Post‐Stimulation Hydraulic Response and Productivity Constraints of a Low‐Productivity Carbonate Geothermal Well in the Small Intramontane Basin, Beijing Piedmont, North China

open access: yesEnergy Science &Engineering, EarlyView.
Formed ~1.4 Ga, the carbonate reservoir of the Jixian System is a key geothermal reservoir in northern China. Differential basin–mountain evolution since the Cenozoic led to distinct reservoir‐forming histories; consequently, this same reservoir shows marked productivity contrasts between intramontane basins and the large rift Bohai Bay Basin ...
Chuanqing Zhu   +6 more
wiley   +1 more source

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

open access: yesCarsologica 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   +4 more
doaj   +1 more source

Bryozoan‐Rich Carbonate Units of the Erfoud Area (SE Morocco) Record Latest Katian to Early Hirnantian Interglacial Intervals

open access: yesGeological Journal, EarlyView.
In this study, we re‐examine the depositional architecture of the Erfoud limestone in Morocco. Introducing new biostratigraphic constraints from chitinozoan assemblages, we show that Katian to Hirnantian bryozoan‐pelmatozoan meadows reflect flooding events linked to a series of interglacial transgressions known to have occurred immediately prior to the
Philippe Razin   +4 more
wiley   +1 more source

Application of sulfur and oxygen isotopes in identifying the source of sulfate in karst water from Xin′an spring area

open access: yes地质科技通报, 2022
An extremely high sulfate content is one of the main reasons for the deterioration of karst water quality in the Xin′an Spring area. Identifying the source of sulfate is of great significance for fully understanding the hydrogeochemical process in karst ...
Xiaobing Hu   +6 more
doaj   +1 more source

Karst water resources

open access: yesEos, Transactions American Geophysical Union, 1985
The Administrative Committee for the International Symposium on Karst Water Resources met on November 12, 1984, at Hacettepe University in Ankara, Turkey. In attendance were representatives of most of the various Turkish government agencies and universities, the International Association of Hydrological Sciences (IAHS), and the United Nations, sponsors
openaire   +1 more source

Hydrodynamic Characterization of Mugla Karst Aquifer Using Correlation and Spectral Analyses on the Rainfall and Springs Water-Level Time Series [PDF]

open access: yes, 2019
Karst aquifers have been an important research topic for hydrologists for years. Due to their high storage capacity, karst aquifers are an important source of water for the environment.
Sağır, Çağdaş   +6 more
core   +1 more source

Simultaneous 3/4‐power scaling of leaf mass and 2/3‐power scaling of leaf area with stem mass in plants

open access: yesGrassland Research, EarlyView.
Abstract Background Plant allometry theory developed in the last century focused on 2/3‐power scaling, determined by light interception considerations. More recently, 3/4‐power scaling based on the properties of vascular distribution networks has been proposed.
Cory Matthew   +2 more
wiley   +1 more source

Low Soil Organic Matter Stability Exacerbates the Vulnerability of Karst Areas to Rocky Desertification

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Karst rocky desertification represents a severe form of land degradation and has traditionally been attributed to geological and hydrological constraints. However, soil organic matter (SOM), a key regulator of erosion resistance, is highly responsive to management practices, yet its contribution to rocky desertification remains poorly ...
Xinyue Di   +6 more
wiley   +1 more source

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