Sentences with phrase «soil moisture deficits»

Red shading indicates the very driest areas — soil moisture deficits greater than 130 mm.

The impacts of runoff and soil moisture deficits associated with warm temperatures can be acute, including enhanced wildfire risk (21), land subsidence from excessive groundwater withdrawals (22), decreased hydropower production (23), and damage to habitat of vulnerable riparian species (24).

«The warming leads to a simulated long - term reduction in soil moisture which, although of weak magnitude compared to soil moisture deficits induced by naturally occurring droughts in the southwest United States, would imply that drought conditions may be entered more quickly and alleviated more slowly owing to long - term warming... Radiative forcing of the climate system is another source of predictability, although not really a welcome one, and rising greenhouse gases will lead to a steady drying of southwest North America.

There is little evidence for a human influence on precipitation deficits, but a lot of evidence for a human fingerprint on surface soil moisture deficits — starting with increased evapotranspiration caused by higher temperatures.

But it is still uncertain what these rainfall and soil moisture deficits might mean for prolonged reductions of streamflow and lake and groundwater levels.

«There are a lot of different pathways by which temperature can negatively affect crop yield: soil moisture deficit [or] heat directly damaging the plants and interfering with their reproductive process.»

On average, across Asia, droughts lasting longer than three months will be more than twice as severe in terms of their soil moisture deficit compared to the 1990 - 2005 period.

Not exact matches

Studies show that soil moisture retention in most years did not significantly decrease with the presence of these crops (Miller et al. 2006; Miller and Holmes 2012), suggesting that this revenue - generating crop can replace a fallow year without incurring a moisture deficit.

From the perspective of soil moisture, the ongoing drought is the worst in at least the last 1,200 years, the study found, adding that the high temperatures in the past few years may have aggravated the precipitation deficits by nearly 40 %.

Natural processes changed the timing and magnitude of soil moisture, streamflow, and groundwater deficits by up to several years, and caused the amplification of rainfall declines in streamflow to be greater than in normal dry years.

Droughts can be broadly categorized into four groups: meteorological droughts (deficit in precipitation), agricultural droughts (deficit in soil moisture), hydrologic droughts (deficit in runoff and / or groundwater resources), and socio - economic droughts (higher demand than the available supply).

► Agricultural drought relates to moisture deficits in the topmost 1 meter or so of soil (the root zone) that affect crops, ► meteorological drought is mainly a prolonged deficit of precipitation, and ► hydrologic drought is related to below - normal stream flow, lake and groundwater levels.