I’ve finally started outlining material for a book on gardening. I’m conceiving an art-book of sorts, more like a cookbook that you can open to any page and find artwork, poetry, diagrams, and inspirational stories from gardeners. Interspersed will also be some practical principles and gardening techniques. There would be a rigorous index for practical info-finding since there won’t be a linear narrative. I’m envisioning a call for entries to get submissions from folks to include. Most gardening books on the shelf at the store are really ugly and boring and uninspired.
Below is the way I’ve clustered info from my brainstorming. Please email or join the facebook conversation if you have categories or topics that you find missing!
Do you want to help submit content?? (art, essays, diagrams, photos, poetry, etc)
Do you want to help edit and produce the book??
“What We’d Like to Tell You About Gardening” — working title
n raised beds
n shade structures
best things to grow each season in Central Texas
understanding the seasons
growing tomatoes in ATX
when is it time to let go
what should your garden look like (design)
dealing with “disease”
n moisture meter
n rain-water vs. city-water
n garden fork
Life wants to live
“if it looks like good farming. . .” (Wendell Berry)
“let’s say you have a garden with four raised beds at 4×8 and therefore about 300 unique living organisms to tend to . . . what in your previous experience has prepared you for the embodied responsibility therin?”
a garden is not a machine that produces vegetable foods
“the gardener’s shadow”
“plant the right thing at the right time”
“What good is your philosophy if it can’t grow any corn?”
Winona La Duke’s dad
“gardening is cheaper than therapy”
“gardens as the basis of hope” Grace Lee Boggs
annuals (the lifespan of plants) (seasons)
why do we want to teach our kids about gardening?
what are your gardening goals?
Is there such a thing as a “green thumb?”
who is a gardener? (who is an eater??)
who can afford to garden?
What “good” is gardening?
Grandmas and gardening
what is the lineage and history of vegetable plants?
Failure in the garden
What does it take to eat from the garden?
n physical space
n time commitment
n kitchen (recipes)
Why does gardening make us more fully human?
What is local food? Hyper-local food?
How does local food fit in to local economy?
Why is gardening good for the environment?
a thousand gardens later . . .
n CSA (community supported agriculture)
“if you build a 4×4 garden, it could change your life”
Trojan horse gardening
some things you learn in the garden:
n plant biology
n weather watching
n new recipes
n your yard
n heartbreak (Thomas Merton “results”)
n complex systems
n a glimmer of self-sufficiency
n respect for the Creation
n respect for foraging
n interest in animal husbandry
n sharing w/ people and with pests
n fertility cycles
n soil biology
n neighbors-community (human and non)
n To know something grounding and authentic
GoFundMe for Gardening Book
n call for submissions
n garden art
n garden poetry
n what does gardening mean to you?
n Favorite story
n Gardening inspiration (who?)
n What are your hopes for gardening?
n Favorite thing to grow
n How did you start gardening?
n What have you learned in the garden?
Subsist to Resist
Green Corn Project
Sustainable Food Center
Russ is coming thru for Sherry.
(what's your excuse?)
To: "Randy Jewart" <firstname.lastname@example.org>
She's a beauty! Thanks!
Groundwater Depletion in Semiarid Regions of Texas and California Threatens U.S. Food Security
May 29, 2012
AUSTIN, Texas — The nation's food supply may be vulnerable to rapid groundwater depletion from irrigated agriculture, according to a new study by researchers at The University of Texas at Austin and elsewhere.
Groundwater depletion has been most severe in the purple areas indicated on these maps of (A) the High Plains and (B) California's Central Valley. These heavily affected areas are concentrated in parts of the Texas Panhandle, western Kansas, and the Tulare Basin in California's Central Valley. Changes in groundwater levels in (A) are adapted from a 2009 report by the U.S. Geological Survey and in (B) from a 1989 report by the USGS.
The study, which appears in the journal Proceedings of the National Academy of Sciences, paints the highest resolution picture yet of how groundwater depletion varies across space and time in California's Central Valley and the High Plains of the central U.S. Researchers hope this information will enable more sustainable use of water in these areas, although they think irrigated agriculture may be unsustainable in some parts.
"We're already seeing changes in both areas," said Bridget Scanlon, senior research scientist at The University of Texas at Austin's Bureau of Economic Geology and lead author of the study. "We're seeing decreases in rural populations in the High Plains. Increasing urbanization is replacing farms in the Central Valley. And during droughts some farmers are forced to fallow their land. These trends will only accelerate as water scarcity issues become more severe."
Three results of the new study are particularly striking: First, during the most recent drought in California's Central Valley, from 2006 to 2009, farmers in the south depleted enough groundwater to fill the nation's largest man-made reservoir, Lake Mead near Las Vegas—a level of groundwater depletion that is unsustainable at current recharge rates. Second, a third of the groundwater depletion in the High Plains occurs in just 4% of the land area. And third, the researchers project that if current trends continue some parts of the southern High Plains that currently support irrigated agriculture, mostly in the Texas Panhandle and western Kansas, will be unable to do so within a few decades.
California's Central Valley is sometimes called the nation's "fruit and vegetable basket." The High Plains, which run from northwest Texas to southern Wyoming and South Dakota, are sometimes called the country's "grain basket." Combined, these two regions produced agricultural products worth $56 billion in 2007, accounting for much of the nation's food production. They also account for half of all groundwater depletion in the U.S., mainly as a result of irrigating crops.
In the early 20th century, farmers in California's Central Valley began pumping groundwater to irrigate their crops. Over time, groundwater levels dropped as much as 400 feet in some places. From the 1930s to ’70s, state and federal agencies built a system of dams, reservoirs and canals to transfer water from the relatively water-rich north to the very dry south. Since then, groundwater levels in some areas have risen as much as 300 feet. In the High Plains, farmers first began large-scale pumping of groundwater for crop irrigation in the 1930s and ’40s; but irrigation greatly expanded in response to the 1950s drought. Since then, groundwater levels there have steadily declined, in some places more than 150 feet.
Scanlon and her colleagues at the U.S. Geological Survey and the Université de Rennes in France used water level records from thousands of wells, data from NASA's GRACE satellites, and computer models to study groundwater depletion in the two regions.
GRACE satellites monitor changes in Earth’s gravity field which are controlled primarily by variations in water storage. Byron Tapley, director of the university's Center for Space Research, led the development of the GRACE satellites, which recently celebrated their 10th anniversary.
Scanlon and her colleagues suggested several ways to make irrigated agriculture in the Central Valley more sustainable: Replace flood irrigation systems (used on about half of crops) with more efficient sprinkle and drip systems and expand the practice of groundwater banking—storing excess surface water in times of plenty in the same natural aquifers that supply groundwater for irrigation. Groundwater banks currently store 2 to 3 cubic kilometers of water in California, similar to or greater than storage capacities of many of the large surface water reservoirs in the state. Groundwater banks provide a valuable approach for evening out water supplies during climate extremes ranging from droughts to floods.
For various reasons, Scanlon and other experts don't think these or other engineering approaches will solve the problem in the High Plains. When groundwater levels drop too low to support irrigated farming in some areas, farmers there will be forced to switch from irrigated crops such as corn to non-irrigated crops such as sorghum, or to rangeland. The transition could be economically challenging because non-irrigated crops generate about half the yield of irrigated crops and are far more vulnerable to droughts.
"Basically irrigated agriculture in much of the southern High Plains is unsustainable," said Scanlon.
For more information, contact: Marc Airhart, Geology Foundation, Jackson School of Geosciences, 512 471 2241.
Tags: Research, agriculture, Bridget Scanlon, Bureau of Economic Geology, Central Valley, food production, groundwater depletion, High Plains, irrigation, Jackson School of Geosciences
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2 Comments to "Groundwater Depletion in Semiarid Regions of Texas and California Threatens U.S. Food Security"
1. Dave Smith said on May 29, 2012
The map showing groundawter basins of the central valley is interesting. It answers my question about the "Tulare Basin" terminology being used by NRCSers and others when talking about the UCD Nitrogen in groundwater study.
2. Charles Curtis said on May 31, 2012
Informative Report seems to confirm past observations of water depletion. As an East Texas where we "don't have water problems," contamination from temporary wells drilled for the current drilling boom is a problem. Wells drilled by companies disregarding contamination of various ground water sources needs to be spotlited. I would guess the railroad commission is unware of many drilled water wells and how the formations are produced. As a retired petroleum industry employee I regret that this type of thing occurs.
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