Hyderabad metropolis is one of the fastest growing populations in India and has previously relied on surface water storages in lakes for urban water supply. Reported impacts on groundwater around Hyderabad urban agglomeration are varied and include: changes in land use from agriculture to residential/industrial, declining water tables, worsening water quality in lakes due to nutrient flows (urban sewage). One of the problems tackled under restoration of lakes program by Hyderabad Urban Development Authority is characterization of groundwater regime around lakes. Studies in three urban lake watersheds, viz, lakes in Northeast Musi basin, Durgamcheruvu, and Mir Alam Tank have been carried out to monitor the groundwater contamination of nitrate, if any in the command areas. Bathymetric studies have helped find out the lake water storage. Lake water quality in terms of nutrients total phosphorous and total nitrogen has helped to compute trophic status index. All the lakes under investigation are under hypereutrophic condition. The hydrological features of the lakes, associated hydrogeological aspects, and the importance of groundwater conditions on water quality in the NE Musi basin have been investigated to establish interactions between lake water and groundwater system. The integrated geophysical and hydrogeological investigations have provided an insight of the complex nature of groundwater contamination in the basin. Groundwater occurs in shallow aquifers in granitic terrain, some limited in extent, and some susceptible to impacts from urban development, industrialization as well as from natural processes in the area. Water balance has been evolved through groundwater flow modeling to compute interaction of the lake water with the groundwater regime. A tertiary treatment plant removes phosphates, and associated wetland reduces the nitrates, and treated sewerage enters the lake with less nutrient inputs. The lake water budget has helped to decide the capacity of sewage treatment plant (STP) for tertiary treatment to be established on each lake in the watershed.

Historical data, including structures, documents, photographs and eyewitness reports, allow changes in some drainage basins to be documented in fine detail over time periods ranging from a few days to several decades. The USA is rich in data sources that are freely available. Rates of bank erosion, meander migration, channel width, riparian vegetation and watershed land use and cover conditions can be assessed, which are especially valuable where there is controversy over the human contribution to erosion and deposition. Studies of Coon Creek and the southern Piedmont of the USA have yielded results that sometimes contradict established views.

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Vadose Zone JournalVolume 10, Issue 3 p. 1115-1115 Book Review Soil and Water Conservation Advances in the United States Stanley W. Trimble, Stanley W. Trimble trimble@geog.ucla.edu Dep. of Geography, UCLA, 1255 Bunche Hall, Los Angeles, CA, 90095-1524Search for more papers by this author Stanley W. Trimble, Stanley W. Trimble trimble@geog.ucla.edu Dep. of Geography, UCLA, 1255 Bunche Hall, Los Angeles, CA, 90095-1524Search for more papers by this author First published: 01 August 2011 https://doi.org/10.2136/vzj2011.0033br All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article. Volume10, Issue3August 2011Pages 1115-1115 RelatedInformation