of people think wo can use watet without limit.But the water wo can use more and more less.The water is polluted in all kinds of ways.TO protect water we must take measures .People also should treasure the water.we shouldn't recognize the worth of water till the wells are...
Methane concentrations in groundwater (wells, sinkholes, and springs) averaged 61 ± 9 μM, while concentrations in nearshore and continental shelf waters within the study area averaged 62 ± 7 nM and 27 ± 5x nM, respectively. We tested the hypothesis that the three orders of magnitude ...
Stable isotopes of water (δ 2 H and δ 18 O) are classical tools for determining hydrogeological parameters ea. recharge area, flow directions, groundwater-surface water exchanges,… (Mook et al. 2008). However the successful use of the isotope techniques depends on local or regional hydrogeol...
Wildfire alters the hydrologic cycle, with important implications for water supply and hazards including flooding and debris flows. In this study we use a combination of electrical resistivity and stable water isotope analyses to investigate the hydrolog
Temperature as a driver for the expansion of the microalga Gonyostomum semen in Swedish lakes Gonyostomum semen (Ehrenb) Diesing is a bloom-forming and noxious phytoplankton species, that usually occurs in brown-water lakes and which is often referr... K Rengefors,GA Weyhenmeyer,I Bloch -...
Also large concentration of this algae in the sea give the water a brown to red coloration because of their pigmentation (Trease and Evanes, 1996). Certain dinoflagellate species produce toxin which when consumed by filter feeders, such as shellfish, are concentrated in the flesh of the ...
Groundwater use for emergency situations (GWES) is one of the security issues as human securities (the second security). The number of legislated wells for emergency situation use of groundwater in Kyoto becomes 574 on 2011. The analyses of groundwater dependency in Asian megacities during the ...
Recharging aquifers with recycled water may be enough to prevent wells from going dry. When an aquifer is tapped dry, often it’s lost forever as a source of water The groundwater in underground aquifers is one of our most indispensable natural resources, but overuse and contamination from huma...
There are a lot of salt wells in Sichuan. 四川有很多盐井。A salt well is much like a water well. 盐井很像水井。People bring the well water up to the ground and then dry it in big pans over a fire. 人们把井水提到地面,然后在大锅里用火烘干。In this way they get salt. 这样他们就...
there has been very little rain in Southwest China.Some places, especially in Yunnan.Guangxi, Sichuan, Guizhou, have experienced a serious drought.Crops(庄稼)died, the landcracked, and wells(井)and rivers dried up.More than 20 million people are having difficulty in finding safe drinking water...