نتایج جستجو برای: water quality parameters
تعداد نتایج: 1752088 فیلتر نتایج به سال:
Nonpoint source (NPS) pollution is a major surface water contaminant commonly caused by agricultural runoff. The purpose of this study was to assess seasonal variation in water quality parameters in Gorganrood watershed (Golestan Province, Iran). It also tried to clarify the effects of agricultural practices and NPS pollution on them. Water quality parameters including potassium, sodium, pH, wa...
abstract the results of an integrated study aimed at restoring water quality in a large watershed including seven catchments in north east iran are presented in this paper. this case study demonstrates how landscape metrics reflect direct or surrogate causes of the land use practices that are the determinants of water quality parameters. water quality factors included ec, ph, cl-1, hco3-1, so4-...
Classification of water quality is the most important step for controlling the pollution of water. The aim of this study was classifying the water quality of the Talar River basin by analyzing the existing data of six monitoring stations. Multivariate statistical techniques such as cluster analysis (CA), principal component analysis (PCA) and factor analysis (FA) were used to assessment the spa...
Abstract : Water the most vital source for all kinds of life on this planet is also the resource, adversely affected both qualitatively and quantitatively by all kinds of human activities on land, in air or in water. To find an approach to water quality management through correlation studies between various water quality parameters, the statistical regression analysis for eight data points of G...
Rivers are important as the main source of supply for drinking, agriculture and industry.However, drinking water quality in terms of qualitative parameters, is the most important variable. Studias and predicting changes in quality parameters along a river, are one of the goals of water resources planners and managers. In this regard, many water quality models in order to maintain better water ...
In this paper, the utility of Landsat TM imagery for water quality studies in East Texas is investigated. Remote sensing has an important and effective role in water quality management. Remote sensing satellites measure the amount of solar radiation reflected by surface water and the reflectance of water depend upon the concentration and character of water quality parameters. Three water qualit...
چکیده روش های متعددی برای برآورد رواناب حاصل از بارش در حوضه های آبریز وجود دارد. یکی از این روش ها استفاده از مدل های هیدرولوژیکی است. با استفاده از مدل های هیدرولوژیکی و شبیه سازی فرآیندهای هیدرولوژیکی می توان با صرف کمترین زمان و هزینه، رواناب و مولفه های دیگر چرخ? هیدرولوژیکی را برآورد کرد. از آنجا که در حوضه های آبریز اندازه گیری تمام کمیت های مورد نیاز برای تحلیل رواناب ممکن نیست، انتخاب...
Background: Water resource management in order to preserving and supplying of high-quality water, plays an important role on communities health. For this reason, humans have always used different methods to provide high-quality water. One of these methods is the use of Radial Collector wells. In this study, the effect of Radial Collector wells on the microbial and physicochemical quality of Doo...
Prishtevka River Basin in the upper part is characterized by hilly - mountain terrain, while the side stretched towards the city of Pristina to the estuary of Sitnica River is characterized by field terrain. 1.5% of the catchment area is situated at an altitude above 1000 m, 33.9% from 1000 m to 800 m, 20.1% from 800 m to 700 m, 25.2% from 700 m to 600 m, and 19, 2% at an altitude below 600 m. ...
Ornamental fish keeping is the second most popular hobby in the world, and its popularity is growing every day. The ornamental fish farming industry provides entrepreneurship and income generation opportunities, so it is important to focus on various aspects of ornamental fish farming. Several physical and chemical parameters of water are discussed in this study, including pH, hardness, a...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید