Dams · DRP News Bulletin

DRP News Bulletin 12 February 2018 (With Innovative Ideas Hyderabad, Chennai & Delhi Are Reviving Its Wetlands)

This week there are exemplary and encouraging wetlands revival stories from three metro cities of Chennai, Hyderabad and Delhi.  In the first example from Hyderabad, meticulously chosen plant species such as tulsi, aswagandha, citronella and hibiscus have been used to create an artificial island to clean Neknampur Lake. The treatment islands are composed of four layers of which the bamboo base keeps the entire structure afloat. Based on soil-less hydroponics, these floating treatment wetlands absorb excess nitrates, thereby reducing the chemical content of the lake water. Microorganisms present in the wetland break down organic matter while the root systems filter out pollutants and sediments. https://www.thenewsminute.com/article/3500-saplings-floating-islands-help-rejuvenate-hyd-neknampur-lake-75819 (The News Minute, 3 Feb. 2018)

Image by: Madhulika Choudhary

Similarly, Chennai-based Care Earth Trust along with the public works department (PWD) and the civic body has managed to restore three urban lakes. While many of the smaller wetlands have vanished over time, many mid-sized wetlands seem to have shrunk by almost 65 percent. Thanks to their joint effort, invasive hyacinth was removed from the Narayanapuram Lake in Pallikaranai, while sewer lines, which emptied into the Perungalathur Lake, have now been plugged. A detailed restoration proposal has been forwarded to the PWD regarding the Korattur-Madhavaram-Ambattur lakes. https://timesofindia.indiatimes.com/city/chennai/hyacinth-out-sewer-line-plugged-three-water-bodies-restored/articleshow/62748110.cms (The Times of India, 2 Feb. 2018)

Meanwhile, Delhi Jal Board (DJB) has taken up interesting new project of creating an artificial lake in Dwarka. The project will supply water in sub-city and improve ground water level too. DJB has approved Rs. 56 crore for the project which will be completed in next seven months.  This would the first model project wherein a lake will be used to augment water supply. The special lake is being created next to the Dwarka water treatment plant (WTP) will have a sand bed to allow maximum percolation of water into the ground. It will have a capacity of 10 million gallons (MGD). The project is expected to add supply of 5-6 million gallons water to Dwarka every day.

Continue reading “DRP News Bulletin 12 February 2018 (With Innovative Ideas Hyderabad, Chennai & Delhi Are Reviving Its Wetlands)”

Dams · DRP News Bulletin

DRP News Bulletin 29 January 2018 (Organic Farming Through Cluster Approach Can Help Farmers, Groundwater And Our Future)

There have been many positive developments on agriculture, groundwater and environment round the week. In the first positive development, data from the first impact study of Paramparagat Krishi Vikas Yojana (PKVY) shows that small and marginal farmers, who can’t afford costly agricultural inputs, are turning a new leaf by going organic because of lower costs and higher margins. The study conducted by the National Institute of Agriculture Extension Management, has also revealed that Net Returns of organic farmers were higher for all the three crops studied, namely wheat, paddy and soybean, by 15.8%, 36.7% and 50% respectively.

of

This was based on study of 690 organic clusters in 25 states, out of some 6211 clusters comprising of 2.25 lakh farmers in a PKVY (each ha getting Rs 50 000 as aid) scheme launched in 2015, comprising of 52.3% small farmers. The average cluster size was 69 acres, in each there were 54.6 farmers on average. Maharashtra had the highest number of clusters at 1043 and MP had the highest area under clusters. The funding however remained irregular. India’s domestic organic food market is expected to show Compound Annual Growth rate of 25%, says the study. https://www.hindustantimes.com/india-news/small-farmers-go-big-with-organic-farming/story-nlyQQVUnoewHgeJyvaAnJI.html (Hindustan Times, 29 January 2018)

Another positive news report, have disclosed that how a simple groundwater recharge technique is transforming farmlands in Gujarat. The simple pit and pipe system simply and expertly captures standing water during rains, thus freeing arable land from water logging while recharging groundwater to use for irrigation during the lean season. This is essentially a simple groundwater recharge scheme but appears to last long. As per report about 3000 such units have already been installed in Gujarat and several other states.  http://www.thehindu.com/society/this-simple-technology-has-transformed-gujarat-farmlands-into-an-oasis/article22529034.ece (The Hindu, 27 January 2018)

The third positive news have come from Central Government which has prepared a Rs 6000 crore plan to recharge ground water. The scheme is yet to be cleared by the Expenditure Finance Committee and the Cabinet.  

As per report, the new 5-yr long scheme will be funded 50: 50 by the World Bank and centre, to be implemented in Gujarat, Maharashtra, Madhya Pradesh, Uttar Pradesh, Karnataka, Haryana and Rajasthan, covering 78 districts, 193 blocks and 8300 gram panchayats.

Gram Panchayats that prepare water security plans and put infrastructure to augment water supply will get incentives. Interestingly, an earlier version of the scheme, called National Groundwater Management Improvement Scheme was rejected by AFC in May 2017.  https://www.hindustantimes.com/india-news/centre-readies-rs-6-000-crore-plan-to-recharge-groundwater/story-nziZ6rvp88ZJHFo0DM5kNO.html (Hindustan Times, 28 January 2018)  

Continue reading “DRP News Bulletin 29 January 2018 (Organic Farming Through Cluster Approach Can Help Farmers, Groundwater And Our Future)”

Dams

Dams, Rivers & People News Bulletin 07 Dec. 2015 (Dams sap Earth’s water, release arsenic in groundwater & fuel Climate Change)

Two new studies show that dam not only significantly increase evapo-transpiration but also worsen arsenic problem in groundwater. In the first study done by Stockholm University in Sweden researchers found that dams and irrigation significantly increase evapotranspiration, an effect that increases the loss of freshwater to the atmosphere, thereby reducing the water available for humans, societies and ecosystems on land. The researchers have compiled and analyzed data from 1901 to 2008 for climate, hydrology and water use in one hundred large hydrological basins spread over the world. In the second study done by Stanford University in Cambodia, researchers concluded that hydrological development particularly dams are responsible for release of increased and unnatural amount of arsenic in Cambodia’s groundwater.

Continue reading “Dams, Rivers & People News Bulletin 07 Dec. 2015 (Dams sap Earth’s water, release arsenic in groundwater & fuel Climate Change)”