Coastal ecosystems are sensitive to changes in the quantity and lability of terrigenous dissolved organic matter (DOM) delivered by rivers. The lability of DOM is thought to decrease with age, but this view stems from work in watersheds where terrestrial plant and soil sources dominate streamwater DOM.

To measure impact of ecological change in Chittagon Hill Tracts after the installation od dam Kaptai in 1955 on siltation, Bangladesh Water Development Board has conducted siltation study several times from 1978.

Analyses of boron isotopes in ancient marine carbonate sediments provide an enlightening perspective on the links between carbon dioxide and ice-cap cover at a climatically momentous time in Earth's history.

In this paper an attempt has been made to analyze the sedimentation surveys and rates in live storage capacity of reservoirs. The analysis is based on the available data of 28 reservoirs from different basins of Maharashtra.

Kachchh, the second largest district in the country (45,652 sq. km), is located in the north-western region of Gujarat. In spite of being arid, Kachchh district has 80.21% of the total wetlands area in Gujarat2 (21.77 lakh ha).

Many of the world's largest deltas are densely populated and heavily farmed. Yet many of their inhabitants are becoming increasingly vulnerable to flooding and conversions of their land to open ocean.

The Ganga continues to be threatened by environmentally unsustainable development projects, of which the Ganga Expressway is the most recent example. But the campaign to save the Ganga is seemingly caught in recrimination and bad governance.

Three lakes (Nainital, Sattal and Naukuchiatal) in the Kumaun Himalayan region were investigated for total organic carbon and nitrogen, their atomic ratios and isotopic composition in their sediments. These geochemical proxies measured in 34-45 cm long cores indicate that organic matter preserved in the lake sediments is primarily derived from algal matter.

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