But recently, proposals for new dams have emerged, mostly in the name of improving water supplies strained by urban growth, a desire to
irrigate more cropland, or adapting to expected changes in precipitation patterns accompanying climate change.
Heat - you can turn on an air conditioner, drought - you can
irrigate more, cyclones - build stronger buildings.
Eventually, no matter how efficient our cultivars, cacao growers will have to figure out how to
irrigate more crops instead of relying on fickle rainfall.
By contrast, the «tuntian» irrigation systems — introduced by the Han Dynasty at the Xinjiang communities of Milan and Loulan — used longer, wider and deeper straight - line channels to irrigate much larger areas, with one
irrigating more than 12,000 acres.
Not exact matches
The state government has formalised plans for Chinese group Shanghai Zhongfu to develop thousands of hectares of
irrigated land in the Kimberley,
more than a year after naming the company as its preferred proponent for the land.
The prospects for
irrigated crop production and livestock industries are
more subdued, with stored water levels still low in some states.
Here is a workable scenario: A corporation owned by both Israeli and Palestinian interests (probably the governments, at least initially) builds one or
more very large desalination plants and the necessary pipelines, develops the land to be
irrigated, manages the farms on that land, and perhaps develops communities where the farm workers can live.
The alluvial plains are suitable for
more crops and garden vegetables, especially when properly
irrigated.140
According to one estimate,
more than 500,000 acres are lost each year to salinity and waterlogging together, so that today the amount of land ruined by irrigation probably equals all that can be made productive if
irrigated.
In one area of India,
more than 20 square kilometers of soil have been lost to salinization, while in Pakistan nearly all the
irrigated land is affected to some extent.
In an oversupplied wine industry undergoing consolidation, differing prices such as $ 15,000 - to - $ 25,000 per hectare in the Riverland and $ 40,000 - to - $ 60,000 in the
more premium McLaren Vale already reflect the view that warm - climate, heavily
irrigated areas have less value, says Colliers national director of rural and agribusiness Tim Altschwager.
The PSTOL1 gene is also being tested in rice varieties for the
more productive
irrigated rice - growing areas and initial results show that the plants grow a better root system and have higher production too.
You should flood
irrigate your plants to remove even
more fertilizer, assuming that the soil drains well.
Similarly, after 6,000 years of success in a Neolithic subsistence farming culture, we had once again produced
more people than we could support, so we were driven to create cities and organize
irrigated agriculture.
An even
more direct conduit into the environment may be the common practice of
irrigating fields with wastewater from livestock lagoons.
Between A.D. 800 and 1500, Angkor's complex canals, roads,
irrigated fields, and dense settlements sprawled across
more than 1,160 square miles, almost the size of Rhode Island — and far beyond the area protected within the UNESCO World Heritage Site's zone today.
The researchers built large shelters over plots and
irrigated them with rainwater so they received either
more or less rain than the 100 - year regional average.
«If you are able to
irrigate your crops with less water over time,» Ketterhagen said, holding his arms out and letting the silky plumes brush his palms, «I think you could create a
more drought - resistant hay crop.»
Spaniards are also questioning the country's drive to grow
more and
more irrigated crops.
«What we want to do is provide useful information that either farmers or land investors can use to look into the future and make decisions on where is the right region to expand
irrigated agriculture, and where is it
more risky.
«Droughts will make human landscapes
more attractive to deer, because farms and suburban areas are
irrigated and would remain fairly green,» Stoner said.
According to a new assessment from the United Nations University, sodium and magnesium salts can cut crop yields by between 15 and 70 per cent, and affect
more than a fifth of the world's
irrigated soils.
The loss is
more than cosmetic: The Alps supply a crucial source of water for
irrigating crops across Europe.
Corn ethanol made from
irrigated crops, for example, can use
more than 1,000 times
more water than oil refining, according to calculations by Sandia National Laboratory.
This leaves plenty of elbowroom for undetected terrestrial planets to huddle close their star, just as Mercury, Venus, Earth and Mars do.What's
more, the gas giants could
irrigate parched inner terrestrial planets with ices from comets and asteroids they perturb.
We normally
irrigate via drip - line beneath the top dressing, but about once a week or so, we spray the top dressing to leach some
more nutrients into the bed.
More than 90 % of the rice area in China is
irrigated, with only relatively small areas being cultivated under rainfed conditions.
«It
irrigates the nose,» he explains, which can help flush out mucus and allow you to breathe
more easily.
Internet forums are full of people who swear by
irrigating their insides with the practice variously known as «colon cleansing», «colon hydrotherapy» and simply «colonics», with feeling feather light, dropping a couple of kilos and being
more regular among reported perks.
If all the water used to
irrigate the crops fell from the sky as rain or was taken from rivers or underground sources in sustainable amounts we'd be in good shape, but sadly and increasingly, that is not the case (see sidebar for
more on this).
Their first four months out here, Cal and Frida had spoken only to each other, and sometimes that was the hardest thing,
more trying than the planting or
irrigating or the labor it took to build the rudimentary outdoor kitchen.
Crops from bottomland close to a major river are a lot
more dependable than
irrigated crops from arid and distant terrain.
Among the big three agricultural producers, this
more - efficient technology is used on 1 - 3 percent of
irrigated land in India and China and on roughly 4 percent in the United States.
As of 2008, farmers associations managed
more than 99 percent of the
irrigated area held in public irrigation districts.
What could threaten world food security
more than the melting of the glaciers that feed the major rivers of Asia during the dry season, the rivers that
irrigate the region's rice and wheat fields?
Among these are shifting from conventional tillage to minimum - till and no - till, the
more extensive use of cover crops, the return of all livestock and poultry manure to the land, expansion of
irrigated area, a return to
more mixed crop - livestock farming, and the forestation of marginal farmlands.
Anything
more would imply unacceptably large impacts on
irrigated agriculture.
Among these are the shift to minimum - till and no - till farming, the
more extensive use of cover crops, the return of all livestock and poultry manure to the land, expansion of
irrigated area, a return to
more mixed crop - livestock farming, and the forestation of marginal farmlands.
One of these is to exploit the appetite of green things for carbon dioxide: for instance, to
irrigate the Australian and Sahara deserts and grow forests that will soak up
more carbon.
Along with the hot summer, annual precipitation for 2003 was as much as 12 inches (300 millimeters) below normal, leaving most of Europe in a drought.21 Damages to the agricultural sector were estimated at
more than U.S. $ 16 billion (
more than $ 13 billion).3, 21 Many areas saw an increase in wildfires, while low water levels in major rivers led to problems ranging from
irrigating crops to cooling power plants.4, 21,22
Turbulent mixing of warm air downward likely
more common in recent years due to roughness changes, urbanization, sensible heat flux from warm, dark,
irrigated vegetation etc..
As
more land was
irrigated, those thunderstorms became a daily occurrence.
More than 620,000 - square - feet of landscaped area has been
irrigated by our three storm management cisterns that harvest up to one million liters of rainwater at a time.
Use the water to increase the amount of
irrigated farmland eight times or
more.
As she grew older,
more and
more land was
irrigated, and summertime afternoon thunderstorms began to be commonplace.
Let» s start
irrigating barren areas of the world with sea water — and lower the T even
more.
You are basically arguing that «The Environment» is somehow entirely mutually exclusive from Agriculture and
more particularly in your comments to me...
irrigated agriculture.
The scope and scale of agricultural emissions are
more complex to manage, he said, because they are not measured in a straightforward way but are related to such factors as how the land is
irrigated, the planting cycle and the type of crops.
Among these are the shift to minimum - till and no - till farming, the
more extensive use of cover crops, the return of livestock and poultry manure to the land, expansion of
irrigated area, a return to
more mixed crop - livestock farming, and the forestation of marginal land.
Salient circumstances at present include a forecast zero flow nomination to the State Water Project, a counter-intuitive assessment that supplies for southern, highly populated counties are far less seriously threatened due to
more robust storage, Bay Area delta eco systems threatened with «collapse», and land fallowing in the San Joaquin running to half a million acres (of a CA total of ~ 8 million
irrigated, that produce nearly half the nation's fruits and veggies).