Sentences with phrase «of soil evaporation»

Not exact matches

In addition the irrigated fields have severe problems of salination due to evaporation of surface waters that leave salt behind in the soil.

Another cause of drying is evaporation from the top of the soil, which can be controlled with a mulch of grass clippings — but then it's hard to see how wet the soil is.

Chile plants hate getting there feet too wet, particularly when there is not enough climatic heat to drive the process of transpiration (the evaporation of water from both the plant's leaf and the soil).

Lack of rainfall in recent months has left soils completely dry and unable to release moisture that would take up heat from the air through evaporation.

Drip irrigation — plastic tubing to water the trees» roots — would minimize the amount of water lost to evaporation and seepage into sandy soils, allowing trees to prosper in areas that are parched today.

Only where the soils show high basic content, partly as a result of a precipitation - evaporation ratio approaching unity, does the herbage synthesize protein adequately and cure on the stalk to provide nutritious feed in the dry season.

The study accounted for evapotranspiration, which is water released into the air through plant transpiration and soil evaporation, as well as precipitation, and surface water flowing into and out of the Central Valley.

The combination of higher evaporation and lower precipitation depletes soil moisture and reduces runoff, making droughts more intense and more frequent.

There is also less evaporation of moisture from the soil.

Urban land use creates a heat - island effect because asphalt, brick, and concrete absorb and conduct solar energy, while the cooling effect of evaporation from soil and vegetation is reduced.

«Minimal attention has been paid to the effects of ant activities on soil [water] evaporation thus far,» says Li.

They found that evaporation of water from the soil surface significantly decreased with increasing aggregate mulch thickness.

For example, in years that had more than average burning during the dry season, measurements of soil moisture, evaporation and vegetation greenness — all of which help to trigger rain — decreased in the following wet season.

Not only does this limit the land available for use in agriculture, but in land that has been used for generations, the combination of irrigation and evaporation gradually leads to increasing soil salinity.

Continuously monitoring plant «water stress» is particularly critical in arid regions and traditionally has been done by measuring soil moisture content or developing evapotranspiration models that calculate the sum of ground surface evaporation and plant transpiration.

Those high temperatures have helped allow drought to flourish in the Northeast and Southeast, as they increase the amount of evaporation from soils and transpiration from trees.

However, in many of the same places, actual evapotranspiration inferred from surface water balance exhibits an increase in association with enhanced soil wetness from increased precipitation, as the actual evapotranspiration becomes closer to the potential evaporation measured by the pans.

Finally, evaporation of the soil moisture releases latent heat, which the team found must measure at least 70 watts averaged per square meter.

(Evapotranspiration is the process by which water is transferred from soil and groundwater to the atmosphere through plant transpiration — loss of water through foliage — and soil evaporation.)

The drainage basin as an open system with inputs (precipitation of varying type and intensity), outputs (evaporation and transpiration), flows (infiltration, throughflow, overland flow and base flow) and stores (including vegetation, soil, aquifers and the cryosphere)

This paper briefly reviews the current state of science regarding historical trends in hydrologic variables, including precipitation, runoff, tropospheric water vapor, soil moisture, glacier mass balance, evaporation, evapotranspiration, and growing season length.

Still more evaporation from the soil and an increased risk of drought.

Finally, the rate of evaporation over land is limited by the amount of moisture in the soil.

The temperature difference is caused by a range of factors, including dense building materials absorbing more of the sun's energy, fewer trees to provide shade, and less soil to cool by evaporation.

But going into spring and summer, soil should dry out more quickly (and it has been) given a decreased warm month precipitation and increased rate of evaporation.

However, if there were a surplus of evaporation, then the surplus evaporation would double, at least until the soil dries out.

2) Soil moisture: memory in soil moisture can last several weeks which can influence the atmosphere through changes in evaporation and surface energy budget and can affect the forecast of air temperature and precipitation in certain areas during certain times of the year on intraseasonal time scaSoil moisture: memory in soil moisture can last several weeks which can influence the atmosphere through changes in evaporation and surface energy budget and can affect the forecast of air temperature and precipitation in certain areas during certain times of the year on intraseasonal time scasoil moisture can last several weeks which can influence the atmosphere through changes in evaporation and surface energy budget and can affect the forecast of air temperature and precipitation in certain areas during certain times of the year on intraseasonal time scales;

And once wide swaths of tree are cut, large land areas lose their shade cover, resulting in more evaporation from the soil, further reducing water flows.

«Poor land use practices and many years of intense drought contributed to these heat waves by depleting soil moisture and reducing the moderating effects of evaporation.»

TFP Composting Toilets use urine diversion and the natural processes of decomposition and evaporation to breakdown and reduce the volume of human waste, transforming it into a soil - like compost material.

evapotranspiration loss of water from the soil both by evaporation from the surface and transpiration from the plants growing thereon

The Palmer Drought Severity Index, which is a measure of soil moisture using precipitation measurements and rough estimates of changes in evaporation, has shown that from 1900 to 2002, the Sahel region of Africa has been experiencing harsher drought conditions.

I guess you could view the nodes and links that I was describing as a layer of network above those you see on Tsonis's site if each of his spatial graphs (networks) were for one parameter such as wind velocity, humidity, pressure, temperature, evaporation rate, soil moisture, etc and extended to three dimensions when proper.

Even in areas where precipitation does not decrease, these increases in surface evaporation and loss of water from plants lead to more rapid drying of soils if the effects of higher temperatures are not offset by other changes (such as reduced wind speed or increased humidity).5 As soil dries out, a larger proportion of the incoming heat from the sun goes into heating the soil and adjacent air rather than evaporating its moisture, resulting in hotter summers under drier climatic conditions.6

► Evaporation is the movement of water from oceans, lakes, rivers, and soils into the atmosphere.

Soil moisture in ERA5 also benefits from other documented changes, including enhanced evaporation over bare soil, the introduction of seasonality for vegetation and a new snow hydrolSoil moisture in ERA5 also benefits from other documented changes, including enhanced evaporation over bare soil, the introduction of seasonality for vegetation and a new snow hydrolsoil, the introduction of seasonality for vegetation and a new snow hydrology.

All other things being equal, warming of soils leads to greater rates of evaporation and drying.

Megadroughts are rare events, episodes that last several decades and in which the evaporation of soil moisture outpaces any rainfall.

Warm temperatures increase the rate of evaporation from parched soils and critically dry rivers, lakes, and streams — exacerbating the impacts of existing precipitation deficits.

Basic physics is at work: normally, daily evaporation of moisture from soil cools earth's surface.

PCIC offers modelled hydrologic data (runoff, baseflow, snow, evaporation and soil moisture) for four basins in BC at the resolution of one - sixteenth of a degree.

On average, lakes have decreased in area in the last 50 years in the southern two - thirds of Alaska, 102,103,87,88 due to a combination of permafrost thaw, greater evaporation in a warmer climate, and increased soil organic accumulation during a longer season for plant growth.

Their work involved using a hydrologic model that included a simple representation of glaciers, run by statistically - downscaled output from global climate models, in order to come up with projected changes to evaporation, precipitation, runoff, snow, soil moisture and temperature in the Canadian portion of the Columbia River Basin.

to be used for drinking water Less evaporation from the storage reservoir Little loss of land No damage due to dam failure Pollutants such as mosquitoes and snails can not exist in the reservoirs Siltation does not create any problems Less vulnerable / below the ground surface in a shallow soil toward the impervious crystalline sub soil.

Fires: We know that higher temperatures lead to increased rates of evaporation, leading to rapid drying of soils.

Soil moisture is a key variable in controlling the exchange of water and heat energy between the land surface and the atmosphere through evaporation and plant transpiration.

The soil water - precipitation coupling is scaled up by a factor of 10, and the two indices for evaporation to precipitation coupling given in the study are averaged.

Soil moisture content and sunshine regulate the type of vegetation that covers the surface, which also influences evaporation rates.

Here, h involves all types of heat exchange as radiation, convection, conduction and evaporation (evaporation must be taken into account also in the case of lands as for example wet soils, vegetation, lakes, etc).

A ground cover is also recommended to limit evaporation of water from the soil.