Sentences with phrase «when soil moisture»

When soil moisture exceeds 20 %, there's a high mortality in flea larvae.
The daily electrical - capacitance variations decreased when soil moisture was below the wilting point and completely ceased below the soil volumetric water content of 11 percent, suggesting that the effect of water stress on electrical capacitance was observed through its impact on photosynthesis.
The daily leaf - thickness variations were minor, with no significant day - to - day changes when soil moisture contents ranged from high to wilting point.

Not exact matches

Causal agents: Blossom - end rot occurs when the plant is unable to take up adequate calcium, a condition caused by fluctuating soil moisture (drought or overwatering), high nitrogen fertilization, or root pruning during cultivation.
The chemicals in disposables draw some of the moisture away, giving the impression that the diaper is soiled, when in fact it is.
«The removal of vegetal cover through burning would likely increase water runoff when it rains, potentially reducing their water retention capacity and invariably the soil moisture,» Ichoku said.
«Soil moisture sensors can be used along with an automated irrigation system to irrigate when substrate volumetric water content drops below a set threshold, allowing for precise irrigation control and improved water conservation compared with traditional irrigation practices,» Bayer said.
Leaf - thickness changes were, however, more noticeable at soil - moisture levels below the wilting point, until leaf thickness stabilized during the final two days of the experiment, when moisture content reached 5 percent.
«From a policy perspective, we have to recognize that we have been trending toward drier conditions over the last 1,500 years and the warming in Nevada is only going to exacerbate that trend,» he said, noting that «warmer temperatures cause more soil moisture to evaporate so you amplify the effects of drought when climate is warming.
It's a small, unglazed ceramic jar that automatically releases the right amount of moisture into the soil when you fill it with water once a week.
When soil loses carbon, it also loses moisture retention.
Benjamin Sulman − a biologist at Indiana University, but then of the Princeton University Environmental Institute in the US − and colleagues report in Nature Climate Change that they have developed a new computer model to examine what really happens, on a global scale, when plants colonise the soil and start taking in moisture and carbon from the atmosphere.
The climate models employed in the IPCC's Fourth Assessment are clearly deficient in their ability to correctly simulate soil moisture trends, even when applied to the past and when driven by observed climate forcings.
Instead, the full impacts only become clear when you combine the precipitation data with temperature information to get an idea of how much moisture is being evaporated from the soil.
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.
Depending on the region, the persistence from spring to summer of soil moisture or snow anomalies generated during spring by temperature and precipitation variations may explain river flows variations in summer, when no concomitant climate variations exist.
When the soil is wet, part of the sun's energy is diverted from warming the soil to vaporizing its moisture, creating a cooling effect.
«When the soil is wet, part of the sun's energy is diverted from warming the soil to vaporizing its moisture,...»
Relative humidity of surface air is not shown, but referred to when it provides complementary information to the precipitation and soil moisture analysis.
Direct observations of soil moisture are not assimilated; analyses are constrained instead by the mismatches between synoptic temperature and humidity observations and corresponding background forecasts, in snow - free regions when meteorological conditions are appropriate.
The radar images provided a comprehensive picture of soil density, moisture and local structures which, when combined with the photographs taken from the aircraft, enabled the researchers to find and examine the city's characteristic temples and artificial ponds used for irrigation and water storage.
The DTR reduction by clouds is largest in warm and dry seasons such as autumn over northern midlatitudes when latentheat release is limited by the soil moisture content.
When we analyzed the limiting roles of temperature, soil moisture, and solar radiation independently, global average trends masked regional differences in the gains and losses of suitable plant growing days.
At the same time, it holds in soil's moisture so that when you water, less evaporates into the air.
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