Results 1 to 10 of about 5,050,499 (303)

Hydrochemical characteristics and water quality evaluation of karst groundwater in typical industrial cities

open access: yesCarsologica Sinica, 2022
As economic pillars of the karst area in south China, industrial cities located in this area play an important role in the promotion of national strategy and economic development. Karst groundwater, the main water source of industrial cities in the karst
Li LU   +5 more
doaj   +1 more source

Influences of anthropogenic acids on carbonate weathering and CO2 sink in an agricultural karst wetland (South China)

open access: yesEcological Indicators, 2023
Carbonate minerals are the largest carbon (C) reservoir on earth. Quantitative assessment of carbonate weathering and CO2 sink flux caused by anthropogenic acids in karst wetland regions is imperative to improve understanding of the hydrogeochemical ...
Jun Li   +7 more
doaj   +1 more source

Distribution characteristics of organic carbon (nitrogen) content, cation exchange capacity, and specific surface area in different soil particle sizes

open access: yesScientific Reports, 2023
Understanding the distribution of soil organic carbon and nitrogen (OC(N)) content, cation exchange capacity (CEC), and specific surface area (SSA) in different soil particle sizes is crucial for studying soil fertility and properties.
Xiaoqian Bi   +8 more
doaj   +1 more source

Effects of Pretreatment and Polarization Shielding on EK-PRB of Fe/Mn/C-LDH for Remediation of Arsenic Contaminated Soils

open access: yesNanomaterials, 2023
In this study, coupling electrokinetic (EK) with the permeable reactive barriers (PRB) of Fe/Mn/C-LDH composite was applied for the remediation of arsenic-contaminated soils.
Zongqiang Zhu   +9 more
doaj   +1 more source

Enhanced Arsenic Removal from Aqueous Solution by Fe/Mn-C Layered Double Hydroxide Composite

open access: yesAdsorption Science & Technology, 2021
A novel material named Fe/Mn-C layered double hydroxide composite (Fe/Mn-C-LDH) was synthesized to remove arsenic from an aqueous solution. The removal performance of the composite toward arsenic ions was studied through the batch experiments.
Yaru Wang   +7 more
doaj   +1 more source

Application of the hydrochemistry, stable isotopes and MixSIAR model to identify nitrate sources and transformations in surface water and groundwater of an intensive agricultural karst wetland in Guilin, China

open access: yesEcotoxicology and Environmental Safety, 2022
Karst water as the vital water supply source is generally suffered from NO3– contamination in intensive agricultural areas worldwide. Identifying NO3– sources and transformations is the key for understanding nitrogen pathways, and also for effectively ...
Jun Li   +7 more
doaj   +1 more source

Water quality analysis and evaluation of irrigation applicability in Nandong underground river basin, Southwest China

open access: yesCarsologica Sinica, 2023
The karst surface water and groundwater of Nandong underground river basin are vital water sources for agricultural and industrial production, and lives of residents in Honghe Hani and Yi Autonomous Prefecture in Yunnan, Southwest China.
Jun LI   +7 more
doaj   +1 more source

Coupled nitrogen transformation and carbon sink in the karst aquatic system: a review

open access: yesBlue-Green Systems, 2021
Carbonate bedrock regions represent that 14% of Earth's continental surface and carbon (C) sink in karst water plays an important role in the global C cycle due to the CO2 consumption during carbonate mineral weathering.
Wenwen Chen   +7 more
doaj   +1 more source

Investigating Spatial Variations of Compound Heat–Precipitation Events in Guangdong, China through a Convection-Permitting Model

open access: yesRemote Sensing, 2023
Compound heat–precipitation events exert significant impacts on severe weather occurrences. Intense vertical air movement, driving vigorous convection, primarily contributes to the formation of extreme precipitation.
Tingan Zhu   +5 more
doaj   +1 more source

Plateau tectonic karst development characteristics and underground conduits identification in the northern part of Kangding

open access: yes地质科技通报, 2022
Restricted by the natural environment and technical methods, the study on the evolution characteristics of karst development and the karst groundwater cycle process in the Qinghai-Xizang Plateau is relatively weak, which restricts the economic ...
Jianfei Ma   +3 more
doaj   +1 more source

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