Analysis of multi-date satellite sensor data and maps indicated loss of 1836 ha of land during 1976–2001 along the Godavari deltaic coast resulting in displacement of coastal communities and mangrove destruction. Decrease in sediment loads from an annual average of 145.26 million tons in 1971–79 to 56.76 million tons during 1990–98, apparently due to construction of dams, largely diminished vertical accretion at the delta, while continued coastal subsidence that might have been accentuated by possible neotectonic activity and consequent relative sea level rise led to shoreline retreat.

Digital processing of the IRS-1D LISS-III image revealed a highly degraded state of the Kolleru lake.

Flood hazard is one of the most severe problems in the Himalayan river basins. Although floods are essentially hydrological phenomenon, the uneven distribution of floods in the river basin highlights the control of geomorphological and geological factors. A proper understanding of these factors is critical for a successful flood management programme. Remote sensing data is of immense value in evaluating the geomorphological and geological controls in flooding. The present paper highlights the control of geomorphology and neotectonics on flood hazard in north Bihar Plains, eastern India.

perception, experience and luck

Ecological impact of joint forest management (JFM) in India was assessed using the studies undertaken at national, state and forest division levels. It was found that there are very few studies that have specifically addressed the ecological aspects under JFM. The study noted that there are significant strides made in promoting JFM, but the program still needs to address a lot of inadequacies.

Government does little with records that could help reduce effect of drought on agriculture