Category — Water – Greywater
The great Central Valley sells far more than $40 billion in crops yearly, making California the biggest ag state in the nation. It provides more than a third of the country’s vegetables and two-thirds of its fruits and nuts.
By Cathleen Decker
Los Angeles Times
Apr 13, 2015
But the more altruistic — and accurate — part of the ad, aired by the California Farm Water Coalition, was its effort to educate those who shower and water their lawns with abandon about the toll the drought already has taken on the vast and now stunningly dry Central Valley.
“In farm country, where hundreds of thousands of acres have already been shut down because of the drought, thousands have lost their jobs,” the narrator said. “For those who can’t afford to feed their families anymore, the local food banks are struggling to keep up with demand.”
April 14, 2015 No Comments
Lessons Learned and the Potential of Improved Water Management
By Douglas J. Merrey and Simon Langan
International Water Management Institute
2014. 60 pages
The purpose of this paper is to synthesize available knowledge and lessons learned from past experiences in promoting kitchen or home gardens, with a special emphasis on water management. The paper has been prepared based on an extensive desk study. It focuses on gardens whose primary purpose is production of food and, at times, growing herbs and spices for home consumption.
April 10, 2015 Comments Off on Review Paper on ‘Garden Kits’ in Africa
Next, the state should direct its focus to farms, which consume 80% of all human-used water in California and generate only 2% of the state’s gross domestic product.
By John D. Sutter
April 2, 2015
“We’re so used to Southern California having these beautiful, lush lawns and palm trees and seasonal flowers,” she told me by phone from Culver City, a suburb of Los Angeles, where she is general manager at a landscaping business called A Greener Tomorrow. But now, because of the drought and new water regulations, “I’m telling you, all I see is Arizona and Las Vegas.”
“Who’s going to be willing to pay?” she said. “You can’t maintain a lawn!”
April 2, 2015 Comments Off on The end of the Los Angeles lawn
California mandatory water restrictions include replacing 50 million square feet of lawns with drought-tolerant landscaping
‘This historic drought demands unprecedented action’
By Arielle Duhaime-Ross
April 1, 2015
California’s ongoing drought isn’t letting up. As a result, Governor Edmund Brown announced today that California will enforce statewide water restrictions for the first time in the state’s history. The actions are meant to reduce the state’s water usage by 25 percent, the governor said in a statement.
“Today we are standing on dry grass where there should be five feet of snow,” Governor Brown said. “Therefore, I’m issuing an executive order mandating substantial water reductions across our state.”
April 1, 2015 Comments Off on California mandatory water restrictions include replacing 50 million square feet of lawns with drought-tolerant landscaping
Urban farming could improve food security but also increases the competition between urban and rural water needs.
Feeding the cities with food and water is changing the Indian agricultural landscape.
By Dilrukshi Handunnetti
January 20, 2015
South and East Asia comprise 49 percent of urban irrigated croplands and 56 percent of the non-urban irrigated areas globally. These two regions account for 26 percent of urban rain-fed croplands and 22 percent of non-urban rain-fed croplands.
Drechsel says, “The study documents that 70 percent of households in developing countries are engaged in some kind of farming and food production and challenges the notion that food production, far from being a rural phenomenon, is commonly occurring within cities.”
January 30, 2015 Comments Off on Urban farming could improve food security but also increases the competition between urban and rural water needs.
Linking urban water management more closely to urban farming has the potential to increase food security, water productivity, and community health, while reducing chemical fertilizer use, long-distance food and water imports, and related greenhouse gas emissions at the same time.
By Sandra Postel
January 8, 2015
Sandra Postel is director of the Global Water Policy Project, Freshwater Fellow of the National Geographic Society, and author of several books and numerous articles on global water issues. She is co-creator of Change the Course, the national freshwater conservation and restoration campaign being piloted in the Colorado River Basin.
Yet a surprisingly large share of the world’s cropland is found not in rural areas, but within cities and their immediate surroundings. Some 456 million hectares (1.13 billion acres) of land is cultivated directly in cities or within 20 kilometers (12.4 miles) of an urban perimeter, according to a recent study conducted by researchers at the International Water Management Institute in Colombo, Sri Lanka, the University of California-Berkeley and Stanford University, and published in the journal Environmental Research Letters.
January 20, 2015 Comments Off on Securing Water for Urban Farms
Gerlach, Nevada is a small village situated next to the Black Rock desert (well known because of the Burning Man festival).
Gerlach, Nevada is a small village. At the turn of the century the town still inhabited up to 900 people, but when the nearby gypsum plant closed down in 2011 and economy went down in the region and people started to move away and presently the town inhabits 100 people. Eight years ago schoolteacher Elizabeth Jackson and her colleagues started an educational community school garden and greenhouse project in this barren environment.
January 6, 2015 Comments Off on Desert School’s Community Garden in Nevada project Needs Water
“Most climate models indicate that by the end of this century, the dry regions of the world will become drier.”
By Karen Kaplan
Los Angeles Times
Oct 2, 2014
The severity of California’s drought continues to shock, with the latest example coming courtesy of NASA.
The space agency’s two Gravity Recovery and Climate Experiment, or GRACE, satellites have been been in orbit since 2002, making highly sensitive measurements of Earth’s gravity field. Variations in the gravity field can be caused by a number of factors, including the amount of water stored underground in soil and rocks.
October 8, 2014 Comments Off on Satellite images reveal shocking groundwater loss in California
Characteristics, Benefits And Risk Mitigation
Edited by Pay Drechsel and Bernard Keraita
The second edition of this book presents updated research findings on urban and peri-urban agriculture and vegetable farming in Ghana’s major cities with a special focus on the risks and risk mitigation related to the use of polluted water sources as it is common across Sub-Saharan Africa.
Foreword to the Second Edition
Over the last 10 years, the International Water Management Institute’s research in Ghana has had a major thrust in urban agriculture in general and (wastewater) irrigated vegetable farming in particular. The first edition of this book was published in 2006 under the title Irrigated Urban Vegetable Production in Ghana: Characteristics, Benefits and Risks –demand was high and it eventually ran out of print but the research resulted in many new studies that have improved our knowledge of the subject.
September 19, 2014 Comments Off on Irrigated Urban Vegetable Production In Ghana:
Affecting urban areas, ecosystems, and agriculture.
By Pacific Institute
60% of the state is experiencing exceptional drought – the most severe drought category. – and it is only getting worse since it will be another 2-3 months before the rainy season.
Since January 2014, 3800 wildfires have burned 44,000 acres in California, compared to an average of 2,800 wildfires burning 35,200 acres on average.
Currently, more than 58% of the state is now considered to be in exceptional drought, up from 37% last week.
August 11, 2014 Comments Off on Pacific Institute says California drought one of the most severe on record
Gov. Jerry Brown, meanwhile, has asked residents across the state to cut water use by 20%, a goal that has proved slippery so far. In some areas of the state, landscaping accounts for half of daily water use …
By Tamara Audi
Wall Street Journal
Aug. 1, 2014
The new mascot will be popping up on billboards donated by Clear Channel Outdoor across the parched region, spouting catchphrases like “Don’t hose me man!” as reminders to refrain from overwatering lawns. On another billboard, Lawn Dude carries a martini glass holding a daisy and says, “I only drink 2 days a week”—a nod to limits on outdoor irrigation to twice a week in some communities.
August 9, 2014 Comments Off on ‘Lawn Dude’ Prods Californians to Battle Drought by Conserving Water
Edyn is a smart garden system that consists of a Wi-Fi-connected sensor and water valve. Both are solar powered and have a rechargeable lithium-polymer battery when not in full sun.
By Liz Stinson
Over time, this (anonymized) data is stored and aggregated with other Edyn users around you to form a more holistic picture of your area’s growing climate. “We’ll be able to say, ‘well, Katie is having success growing basil in Potrero Hill in San Francisco. That’s very close to you, so you might have luck growing it as well,” Aramburu explains. It’s easy to compare the Edyn system to the quantified self movement, but Edyn has the opportunity to actually build a robust, actionable set of data that personal health information could be used for because of its sensitive nature.
June 15, 2014 Comments Off on A Smart Sensor That Quantifies the Soil in Your Garden
How urban agriculture set-ups cultivate local produce with the help of innovative water recirculation systems.
By Saul Chernos
May 12, 2014
“We’re trying to reduce our footprint on the environment as much as we possibly can,” explains Lauren Rathmell, a founding member who oversees Lufa’s greenhouse operations. She says Lufa’s hydroponic greenhouses use up to 90 per cent less water than comparable ones that don’t recirculate. “It’s all automated. We irrigate most of our plants using drip lines set up where we water the plants from above. Water that’s not taken up by the plants and doesn’t evaporate is captured, sent down to our collection tank, filtered, and reused.” Some plants, mostly the lettuces, grow with their roots submerged entirely in gently flowing water, continuously irrigated. Others sit in soilless coconut husk grow sacs.
May 26, 2014 Comments Off on Urban Agriculture – Innovative water recirculation systems
Ductless air conditioners are capable of producing 60-100 litre of cool water in 24 hours time
By Dr.Mohemmed Habibur Rahman, Professor of Pathology, Department of Pathology, Bangladesh Agricultural University, Mymensingh, Bangladesh
At present: School of Veterinary Medicine, College of Agriculture and Consumer Science, University of Ghana, Legon, Accra, Ghana. P.O.Box: LG 586, Legon
All photos by Dr.Mohemmed Habibur Rahman.
I have been living in the west Legon neighborhood of Accra, capital of Ghana but found very little vegetation around. Accra has had an extremely hot and humid climate. For example, the high temperature averages above 30 °C, and humidity levels reach 80% June through September. This year, it is very exception. There was little rain and I found only four day short showers in the last six months. Grasses have turned gray and bone dry. Water is indeed scarce in supply. Municipal drains are also dry. Infrequent water supply caused supply of drinking water as a lucrative business. A bottle of water measuring 1.5 litre is sold at GHS 2.5, which is equivalent to one US $. The water sold in sauces is not cheap as well. 20 paise can buy a litre. Thus, there is no water to grow vegetable in the inner city and to get green vegetable is also difficult.
February 18, 2014 Comments Off on Air-cooler’s water can produce crops and vegetables – an Accra, Ghana experience
Rain Gardens, Permeable Pavement, Bioswales, Rain Water Harvesting, Green Roofs, Downspout Planters, Enhanced Tree Pits for Homes, Gardens, and Communities
Every year, more than 27 billion gallons of sewage and dirty rainwater are discharged into New York Harbor during CSOs.
Green Infrastructure Toolkit
By Grow New York City
This guide is designed to educate homeowners, community gardeners and others interested in storm water management techniques which can help minimize water pollution as it results from rainfall in cities that have combined sewers and other locations that experience flooding and storm water problems. The photographs, detailed drawings, material lists and descriptions provide a starting point for those interested in utilizing these practices in their homes, gardens and communities.
September 20, 2013 Comments Off on Rain Gardens, Permeable Pavement, Bioswales, Rain Water Harvesting, Green Roofs, Downspout Planters, Enhanced Tree Pits for Homes, Gardens, and Communities