Ecology and Environment

The study uses remote sensing data to develop a land use classification and applies statistical methods appropriate for Indian catchments to estimate the annual sediment load from the Upper Indravati catchment in Orissa for the year 2000. The study points to the fact that assessment of reservoir catchment regions at regular intervals would enhance the understanding of the geodynamic processes and help in identifying effective control measures.

Small and big dams and big embankments were constructed in this region, without understanding the nature of the rivers which have always changed course or overshot their banks. Assuming however, that the river will not change course, the Government adopted a skewed development program - that of building embankments to contain the river.

The Renuka Dam Project proposed over the river Giri Ganga (a tributary of the Yamuna) located some 300km away from Delhi, is a joint project of the governments of Himachal Pradesh (HP) and Delhi, to be constructed by the Himachal Pradesh Power Corporation Limited (HPPCL) in Sirmaur district of HP.

Goa is the second smallest state in India, with a total land mass of 3702 sq kms, and is one of the world's 12 bio-diversity hot-spots. While the largest industry is Tourism, conversely the second largest is mining. 8% of this state’s land is already under mining, mostly for iron ore, which is largely exported to China.

Love for green: Healing the hills with trees - Work of Sachidanand Bharti in Uttarakhand

From Tubaah (NDTV Network) website (November 26, 2008).

Sachidanand Bharti is known as the treeman in Uttarakhand, where he has been dedicatedly planting trees since the last 25 years. Hills in Uttarakhand were once barren, but now they are lush green, all due to his efforts. Bharti is a school teacher by profession but his real calling is as a climate crusader.

The momentum for a better Global drinking Water Environment is increasing.

One way to achieve this Mission is to reduce the global High energy wasteful costs in producing Plastic Bottles, then transporting these products (so-called mineral,spring, volcanic Water) daily to Supermarkets, Newsagents & Corner stores.

This brief article by Prof Jayanta Bandyopadhyay in the May 16-31 2010 issue of Business Economics magazine, highlights the recent plans of the central and state goverments of constructing a large number of dams on Himalayan rivers. Environmentalists continue to consistently argue against the construction of dams that are built without respect for ecological sciences and warn that this could lead to increase in disasters in the fragile Himalayan region.

Measurement of riverine biota, particularly benthic macroinvertebrates (such as crustaceans and aquatic insects) and fish, has become a widely accepted method of identifying the structural or functional integrity and the overall health of a riverine system. This manual from the Kerala State Biodiversity Board (KSBB), describes in detail the field procedures to be followed in such fish monitoring/measurement surveys, conducted for riverine ecological systems.

KSBB has taken up this manual publication effort, in the conxtet of a state-wide fish monitoring programme, that aims to survey all the 44 rivers of Kerala with the involvement of resource persons from local colleges, research institutes, experts and fisherpeople community.

Author: Hartman de Souza Art: Jessica Schnabel Content Courtesy: Himal Southasian

Where there is water, there is probably ore beneath.

Having trekked several times to Paikdev’s spring to gulp water pouring out of the moss-covered iron mouth, one would think the mysteries of the journey would fade. But, if anything, they have become more poignant – sitting here at this shrine to the snake deity of the Velip community in the village of Maina, in Goa’s Quepem District. It is here, amidst thousands of hectares of rolling forests, in the foothills of the Western Ghats, home to countless perennial springs and streams, wildlife and more, that a strange conglomeration of mining companies, politicians and real-estate developers are sharpening their collective sword. These activities were already afoot a year ago, with mining operations systematically destroying forests, because, as the government in Panjim stated at the time, the iron ore was needed by New Delhi to keep its nine-percent growth rate on track. This year, the message is no different.

The Vembanad estuarine system, the largest of its kind on the west coast of India is known to be abundantly enriched with diverse fishery resources, providing feeding, spawning and rearing areas for a very large proportion of commercial (fin) fish and shellfish. However, ecosystem health of the Vembanad wetlands is alarmingly declining due to a variety of reasons - obstruction of river courses, sand mining & habitat destruction, loss of riparian canopy cover, encroachment, pollution and unethical fishing practices. Reduced summer flow due to drying up of rivers and pollution hazards from agro-chemicals and sewage also lead to mass mortality of fishes. Depletion of fishery resources has changed this ‘inland fish basket’ to an ‘inland wastebasket’, driving the fisherfolk, the primary stakeholders of the lake into a livelihood crisis.