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- https://bio.libretexts.org/Courses/Norco_College/BIO_5%3A_General_Botany_(Friedrich_Finnern)/24%3A_Food_and_Water/24.06%3A_Impacts_of_Food_Production_on_Water_ResourcesIn this unit, we'll look at how agricultural activities can contribute to water pollution, and we'll also consider how the diversion of irrigation water from both surface and groundwater resources cre...In this unit, we'll look at how agricultural activities can contribute to water pollution, and we'll also consider how the diversion of irrigation water from both surface and groundwater resources create significant impacts on those water resources and the ecosystems they sustain.
- https://bio.libretexts.org/Courses/Norco_College/BIO_5%3A_General_Botany_(Friedrich_Finnern)/24%3A_Food_and_WaterAlso, the growing of our food has an effect on Earth's water resources as agricultural runoff contributes to pollution and diversions for irrigation affect stream flow and deplete aquifers. We'll also...Also, the growing of our food has an effect on Earth's water resources as agricultural runoff contributes to pollution and diversions for irrigation affect stream flow and deplete aquifers. We'll also explore some of the impacts that our food systems have on both the quality and quantity of our water resources. Estimate their water consumption in the food you eat using the concepts of virtual water and water footprints.
- https://bio.libretexts.org/Courses/Norco_College/BIO_5%3A_General_Botany_(Friedrich_Finnern)/24%3A_Food_and_Water/24.01%3A_Water_resources_and_Food_ProductionThe final activity will introduce you to virtual water embedded in the food you eat and your water footprint. The short animated video that follows was produced by the United Nations' Water group for ...The final activity will introduce you to virtual water embedded in the food you eat and your water footprint. The short animated video that follows was produced by the United Nations' Water group for World Water Day and illustrates how much water is embedded in a few different food products. In this module, we'll look at why it takes so much water to produce food and you'll estimate how much water you eat.
- https://bio.libretexts.org/Courses/Norco_College/BIO_5%3A_General_Botany_(Friedrich_Finnern)/24%3A_Food_and_Water/24.03%3A_Water_is_Essential_for_Food_ProductionPlants are about 80-95% water and need water for multiple reasons as they grow including for photosynthesis, for cooling, and to transport minerals and nutrients from the soil and into the plant. The ...Plants are about 80-95% water and need water for multiple reasons as they grow including for photosynthesis, for cooling, and to transport minerals and nutrients from the soil and into the plant. The figure below (Figure \PageIndex1) shows the photosynthesis reaction and the movement of water out of the plant's stomata via transpiration. As water transpires or evaporates through the plant's stomata, water is pumped up from the soil through the roots and into the plant.
- https://bio.libretexts.org/Courses/Norco_College/BIO_5%3A_General_Botany_(Friedrich_Finnern)/24%3A_Food_and_Water/24.02%3A_Evaporation_and_ClimateThe rate at which water evaporates from any surface, whether from a lake's surface or through the stomata on a plant's leaf, is influenced by climatic and weather conditions, which include the solar r...The rate at which water evaporates from any surface, whether from a lake's surface or through the stomata on a plant's leaf, is influenced by climatic and weather conditions, which include the solar radiation, temperature, relative humidity and wind (and other meteorological factors). The lower the relative humidity, the drier the air, and the higher the evaporation rate.
- https://bio.libretexts.org/Courses/Norco_College/BIO_5%3A_General_Botany_(Friedrich_Finnern)/24%3A_Food_and_Water/24.07%3A_SummaryVirtual water is embedded in everything you eat, with the amount of water varying, depending on the crop and the climate in which the crop was grown. The breadbasket of the US, the Midwest, contribute...Virtual water is embedded in everything you eat, with the amount of water varying, depending on the crop and the climate in which the crop was grown. The breadbasket of the US, the Midwest, contributes nutrient pollution to the Mississippi River, which has, in turn, created a massive dead zone in the Gulf of Mexico. You explored data on the size of the dead zone and proposed strategies to reduce the nutrient loading and thereby reduce the size of the dead zone in the future.
- https://bio.libretexts.org/Courses/Norco_College/BIO_5%3A_General_Botany_(Friedrich_Finnern)/24%3A_Food_and_Water/24.04%3A_Evapotranspiration_and_Crop_Water_UseSince a majority of the water used by the crop is the water that is transpired by the plant, we measure the water use of a plant or crop as the rate of evapotranspiration or ET, which is the process b...Since a majority of the water used by the crop is the water that is transpired by the plant, we measure the water use of a plant or crop as the rate of evapotranspiration or ET, which is the process by which liquid water moves from the soil or plants to vapor form in the atmosphere.
- https://bio.libretexts.org/Courses/Norco_College/BIO_5%3A_General_Botany_(Friedrich_Finnern)/24%3A_Food_and_Water/24.05%3A_Water_Sources_for_CropsNote: The range shown reflects the first and third quartile of the water application depth for the period 1998-2010, and the white line within that range reflects the median application depth during t...Note: The range shown reflects the first and third quartile of the water application depth for the period 1998-2010, and the white line within that range reflects the median application depth during that period. Irrigation is the artificial application of water to the soil to assist in the growth of agricultural crops and other vegetation in dry areas and during periods of inadequate rainfall.
