Saline and fresh water

Ebook "Salinity and drainage in San Joaquin Valley, California: Science, technology, and policy" is a collection of independent treatises, each depicting a distinctive salinity drainage topic with fresh perspective. As environmental scientists, engineers, and biologists, we are cognizant of the multiple scales at which complex issues should be examined, and we recognize the need to integrate those scales to recommend viable solutions.

429p giangdongdinh 28-05-2024 3 1   Download

A portable and automated IC system with a dual-capability for the analysis of both fresh and saline environmental waters has been developed. Detection of nitrate in complex matrices such as seawater was achieved by the employment of an automated two-dimensional (heart-cut) IC method utilised in tandem with on-column matrix elimination, using a sodium chloride eluent.

7p viginny 23-12-2022 6 3   Download

The results showed that bacterial inoculation was effective in alleviating the deleterious effect of salinity on some growth criteria (seedling length, fresh and dry masses as well as relative water content), compared with the control. The isolate HM6 (B6), which showed the highest activity of biofilm formation at all the studied NaCl concentrations

11p schindler 30-12-2021 8 0   Download

We investigated the forage potential of 12 Salsola species including S. arbuscula, S. abarghuensis, S. dendroides, S. crassa, S. imbricata, S. incanescens, S. nitraria, S. kerneri, S. orientalis, S. richteri, S. tomentosa, and S. yazdiana in the Southern rangelands of the Great Salt Desert. The results showed a great significant variation among forage quality and quantity of the Salsola species. The greatest fresh and dry forages were obtained in S. yazdiana (4.54 and 1.53 kg m–2, respectively) followed by S. dendroides (3.02 and 1.13 kg m–2, respectively). The S.

13p tudichquannguyet 29-11-2021 10 1   Download

Aedes aegypti mosquito, the principal global vector of arboviral diseases, lays eggs and undergoes larval and pupal development to become adult mosquitoes in fresh water (FW). It has recently been observed to develop in coastal brackish water (BW) habitats of up to 50% sea water, and such salinity tolerance shown to be an inheritable trait.

16p vilichoo2711 23-06-2021 14 1   Download

The lower section of Ma river system is facing complicated salinization, depending on its morphology, slope, tide regime and the increasing effect of climate change. As a result, for effective exploitation of fresh water (salinity ≤ 1.0‰) it needs to take care of the impact of tide regime on rivers’ salinization. Using data of “History of the tide” of Thanh Hoa Hydrometeorology center in some details to limit damages in water supply for irrigation and living of residents in coastal districts of Nga Son, Hau Loc, Hoang Hoa, Quang Xuong, Sam Son city and Thanh Hoa city

9p trinhthamhodang1218 18-03-2021 20 2   Download

This paper spalls out the hydro-geological framework , delineates the regional disposition of fresh and saline ground water bodies , recommends special techniques of production wall constructions , stressed the need for scientific management of fresh ground water resources and rigorous monitoring to safeguard against salt water contamination.

7p nguaconbaynhay7 15-08-2020 8 1   Download

The coastal belt of Odisha extends over 480 kilometers from mouth of Subarnarekha river in the north to the Chilika lake in the south. The plain occupies the outfall regions of major rivers like Mahanadi, Bramhani, Baitarani, Subarnarekha and Rusikulya. It covers one of the most fertile land in the eastern parts of the country and support the major food grain production in the state. But due to the proximity of sea, cyclonic hazard and saltwater ingress through tidal channels have restricted the availability of acceptable quality of water for irrigation as well as drinking.

7p nguaconbaynhay7 15-08-2020 15 1   Download

The ichthyo-fauna in the Ba Che and Tien Yen rivers, northern Vietnam is highly diverse, with a total of 245 species determined. However, data on the distribution of fish species are not sufficiently provided for the whole area. This study was conducted from 2008 to 2011 at 27 stations from the Ba Che and Tien Yen river basins to determine the distribution of fish species according to different sections of the rivers, water bodies, seasons, and salinity levels.

13p xilank_of 22-07-2020 26 2   Download

The field experiment was carried out at Agricultural Research station, Gangavathi (Karnataka), during 2018-19 and 2019-20 to study the influence of M0–furrow, M1–surface drip and M2–subsurface drip irrigation techniques and irrigation salinity levels of S0–0.65 dS m-1 (normal water), S1–2 dS m-1 , S2–3 dS m-1 , S3–4 dS m-1 and S4–5 dS m-1 on tomato (Solanum lycopersicum) growth parameters under Vertisols of Tungabhadra Project Command.

11p nguathienthan3 27-02-2020 22 0   Download

The origin and chemistry of the groundwater in the middle Pleistocene (qp2 3 ), lower Pleistocene (qp1 ), upper Pliocene (n2 2 ), lower Pliocene (n2 1 ), and the Miocene (n1 3 ) in the Mekong river delta (MKRD) were investigated by using isotopic and geochemical techniques. The origin of the groundwater was evaluated based on the composition of the water stable isotopes (d2 H and d18O) in the local precipitation, in water from the rivers system, and in the groundwater samples.

11p caygaocaolon1 13-11-2019 11 0   Download

The average water capture efficiency was 80.5%, the salt elimination efficiency of the system was about 99.99%, and the salinity of the output water was below 2 ppm. The results are still far from ideal, but they indicate a potential solution for coping with the shortage of fresh water in coastal areas.

13p everydaywish 24-12-2018 31 1   Download

In this paper, the authors focus on evaluating the impact of rising sea levels to shift the boundaries of the aquifer salinity, which narrow the area of fresh water and diminishing reserves of fresh water .

10p cumeo3000 01-08-2018 22 0   Download

Fresh groundwater was found in the Pleistocene aquifer in the southern part of the Red River Delta in 70’s of last century. It is located mainly in the south of Nam Dinh province and small part in southeast of Ninh Binh province. The fresh-saline boundary seems to migrate southward recently and downsize the area of fresh groundwater.

10p truongtien_09 10-04-2018 26 1   Download

Populations in developing countries are growing so quickly that the land and water are unable to sustain them. In most developing countries, prime farmland and fresh water are already fully utilized. Although irrigation can be employed to bring land in arid areas into production, it often leads to salinization. In some countries, the amount of newly irrigated land is equalled by salinized irrigated land going out of production. Moreover, irrigation water is often drawn from river basins or aquifers shared by several countries, and friction over its use is common....

151p tom_123 14-11-2012 48 8   Download

It is widely accepted that irrigation allows for the increase and stability in agrarian yields, being a necessary tool to support food supplies and necessities for certain raw materials in the world. However, irrigated agriculture is also considered the most significant fresh water consumer and one of the main causes of pollution, degradation and depletion of natural resources. These impacts are primarily related to changes in the water cycle, salinization of agricultural soils, and salinization and pollution of water resources due to the use of agrochemicals....

246p qsczaxewd 22-09-2012 56 7   Download

This paper identifies five water environmental problems in the Delta that are the principal limiting factors of agricultural production and human health, i.e. (i) the salinity intrusion in the coastal areas, (ii) the effect of acid sulfate soils, (iii) the polluted water from human activities, (iv) the fresh water shortage in the dry season and (v) the flood in the rainy season. The discussion and conclusion present the people’s adaption strategies and water gorvernance issues in pursing sustainable management in the region.......

0p haivan 16-03-2009 230 36   Download