Prepared by:
Dr. M. Dhakshinamoorthy
Professor of Soil Science & Agricultural Chemistry

Abstract
Soil quality and water quality are concepts related with the functions of these natural resources withinthe environment. Indicators and indexes can be linked with standards for the multiple uses of theseresources and can be used as guides for land use and land management planning, from the field to thewatershed levels. The design of a resource management system must accomplish the standards fixedfor one or more particular resource u ....etc

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Quality and suitability of irrigation water
 Total salt concentration
 Relative proportion of sodium to other cations
 Carbonate and bicarbonate concentration
 Boron concentration
Total salt concentration in irrigation water
• Total concentration of soluble salts is the most important single criterion of irrigation water quality
• The harmful effects increases with increase in total salt concentration
• EC - the standard method of evaluating irrigation water for total salts
• ....etc

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USE OF REMOTE SENSING TO ASSESS WETLAND AND WATER QUALITY 


Remote Sensing Techniques to assess wetlands


To conserve and manage wetland resources, it is important to monitor wetlands and their adjacent uplands.
Landsat MSS, Landsat TM, and SPOT are the major satellite systems that have been used to study wetlands
 The combination of radar and optical data provide informations for improving wetland classification.

Precipitation

Accurate me ....etc

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1. INTRODUCTION

Water is vital to the existence of all living organisms, but this valued resource is increasingly being threatened as human populations grow and demand more water of high quality for domestic purposes and economic activities. Water abstraction for domestic use, agricultural production, mining, industrial production, power generation, and forestry practices can lead to deterioration in water quality and quantity that impact not only the aquatic ecosystem (i.e., the assemblage of organisms living and interacting together ....etc

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Water quality models are important tools used by the Maryland Department of the Environment (MDE) in developing Total Maximum Daily Loads (TMDLs), which serve as water quality standards. The MDE tool, which spatially interpolates output from the Chesapeake Bay Program Watershed Model (WSM), is often used because it requires little time, data, or training. In contrast, the WSM requires extensive time, data, and training to run. This study examines if the MDE tool provides accurate estimates of pollutant loads and whether the mid-level complexit ....etc

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I am a m.tech student and I am planning to do the seminar on effects of sewage farming on ground water and soil quality. Could you please help me out in getting atleast 3 published journals on this topic? I will be very grateful if you could help me out. Thanks in advance. My email id is [email protected] ....etc

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VETIVER SYSTEM FOR WATER QUALITY IMPROVEMENT



INTRODUCTION
Fresh water scarcity is predicted to become the greatest single threat to international stability, human health, global food supply .
According to the World Resources Institute, within 25 years, more than half of the world population will be suffering severe fresh water shortages.


Application of the Vetiver System for wastewater treatment is a new and innovative technology, which has the potential to meet the global water crisis.
It is a natural, ....etc

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,mnhbfd ....etc

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Irrigation Water Supply and Quality 
There is approximately 97.3 % of the total global water supply which is made up of oceans, seas and other saline inland water bodies, yet these are not available for human consumption because of high salt content. Fresh water accounts for only 2.7 % of the total estimated global water supply and 75% of this percentage is frozen in polar ice caps and glaciers. Some fresh water is blocked in inaccessible areas under the ground. Thus the fraction ....etc

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This article is presented by:
M. Dhakshinamoorthy
Professor, IMTI, Trichy


MANAGEMENT STRATEGIES FOR POOR QUALITY WATER



Quality of available water is so important in determining the crop and type of irrigation system selected. Irrigation water quality is based on the salinity hazard, sodium content and quality of other materials which may present in amounts which can accumulate to toxic levels in soil. The following parameters ar ....etc

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