Results 21 to 30 of about 788,988 (161)

The impact of the Tri-City Ring Road on surface water of small endorheic wetlands

open access: yesLimnological Review, 2017
The paper presents the results of the impact of the Tri-City Ring Road on small endorheic catchment basins. Particular attention was paid to pollution discharged from the road to the surface water, as well as changes in hydrological conditions in the ...
Staszek Wojciech   +3 more
doaj   +1 more source

Effects of Soil, Light, and Temperature on Freshwater Tannin Concentrations

open access: yesHydrobiology
Tannins are plant secondary compounds that leach into soil and water. Tannin concentrations can be higher in lentic freshwater than in other aquatic ecosystems, which can result in toxicity to freshwater organisms.
Julia E. Earl   +3 more
doaj   +1 more source

The trophic evolution of Lake Iseo as related to its holomixis

open access: yesJournal of Limnology, 1999
Lake Iseo is undergoing a progressive deterioration in water quality, mainly due to eutrophication. This paper, based on measurements performed on the main tributaries and the outflow, considers the phosphorus, nitrogen and silica budget of the lake ...
Rosario MOSELLO   +4 more
doaj   +1 more source

Chemistry and source of the dissolved inorganic carbon of sediments porewater in Huixian karst wetland

open access: yesShuiwen dizhi gongcheng dizhi
The ecological environment of karst wetland is highly fragile, and both natural processes and human activities have led to the gradual deterioration of wetland water quality. However, the influence on the evolution of carbon remains unclear.
Jing LI   +4 more
doaj   +1 more source

Water Treatment Without Chemistry

open access: yesCHIMIA, 2003
Thin-film boron-doped diamond coatings (BDD/Si) on boron-doped silicon substrates by means of a large-scale hot-filament chemical vapor deposition (HF CVD) process have been developed in order to be used as an innovative and efficient electrode ...
Philippe Rychen   +2 more
doaj   +1 more source

A Geothermal Plant from a Time-Scale Perspective

open access: yesEnergies, 2021
In recent years, geothermal energy use from low-temperature sandstone reservoirs has sharply increased. Nonetheless, the injection of heat-depleted geothermal fluids has not been an easy task because of well/formation damage and operational/economic ...
Jacquelin E. Cobos   +2 more
doaj   +1 more source

Fens of the Sierra Nevada, California, USA: patterns of distribution and vegetation [PDF]

open access: yesMires and Peat, 2015
A broad sample of 79 montane fens in the Sierra Nevada revealed that underlying geology and topography exert strong control over the distribution and vegetation of these ecosystems.
E.C. Wolf , D.J. Cooper
doaj  

Development of air pollutant deposition, soil water chemistry and soil on Šerlich research plots, and water chemistry in a surface water source

open access: yesJournal of Forest Science, 2004
In 1986 (1987) research plots were established in a forest stands on the south-western slope of Šerlich Mt., Orlické hory Mts. (Kristina Colloredo-Mansfeld - Forest Administration Opočno), at the altitude of 950 to 970 m, to study deposition, chemistry ...
V. Lochman, V. Mareš, V. Fadrhonsová
doaj   +1 more source

Hydrogeochemical characteristics and evaluation of groundwater resources of Jilin Province, China

open access: yesFrontiers in Water, 2023
As one of China's nine border provinces, Jilin Province is an important window for China's “Belt and Road” to open up to the north, and an important channel for China's foreign trade and foreign exchanges.
Zhaojun Zeng   +16 more
doaj   +1 more source

Difference between rainfall and throughfall chemistry for different forest stands in the Qinling Mountains, China

open access: yesHydrology Research, 2021
This study compared the effects of four forest canopies on throughfall chemistry in the Qinling Mountains, China. Rainfall and throughfall samples were collected in stands of Quercus aliena (Qa) var. Acuteserrata, Pinus tabulaeformis (Pt), P.
Shengli Zhang   +5 more
doaj   +1 more source

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