water and soil impacts Flashcards
freshwater in our world is found in three main places:
Atmospheric water
Surface water
Ground water
Two categories of water use:
indirect and direct
use water in different activities like hand washing, drinking, cooking, bathing, cleaning and many more.
direct
through the food you eat, the things you buy, and even the energy you use.
indirect
The water used to produce or process a commodity, commercial goods or service is referred
virtual water
measurement of virtual water along the full production - consumption chain is referred to as a
water footprint
3 components of water footprint
green water footprint.
blue water footprint.
grey water footprint
The Philippines has abundant water resources with an annual average rainfall
2,400 millimeters
The surface water potential is
125,790 million cubic meter
groundwater potential
20,000 MCM
can disturb the components of the natural water cycle through land use diversions, water use/reuse and discharge of wastes into the natural groundwater and surface water
HUMAN ACTIVITIES (settlements, industry, and agricultural developments)
(settlements, industry, and agricultural developments)
HUMAN ACTIVITIES
refers to consumption of green water resources like rainwater that is stored as soil moisture in the root zone.
GREEN WATER FOOTPRINT
also evaporates from plants by evapotranspiration and is important for agriculture, forestry and horticulture
GREEN WATER
refers to consumption of blue water resources like surface water and groundwater. This can evaporate, naturally flow or become part of the product
BLUE WATER FOOTPRINT
Domestic, industry and irrigated agriculture uses
BLUE WATER
refers to polluted water or water used to dilute pollutants to satisfy water quality standards. This is what goes into bathroom floor drains, sinks and sewage facilities.
GREY WATER FOOTPRINT
in natural drainage areas can cause soil erosion and pollution. These are direct drivers of ecosystem change.
HUMAN ACTIVITIES
high levels of lead, copper or mercury in sediment loads are indications of
heavy metal contamination.
changed the physical flow of water into the ecosystem through the manipulation of surface water level and groundwater reservoirs.
HABITAT MODIFICATION
like the introduction of non-native species of fish on a lake that has no fish before, can induce important shifts in breeding, feeding and nursing patterns, and even promote algal blooms and the dominance of invasive species.
BIOLOGICAL INVASIONS
Freshwater pollution sources in the following nine categories:
Organic matter
Pathogens and microbial contaminants
Nutrients from agricultural run-offs
Salinization
Acidification
Heavy Metals
Toxic organic compounds and micro-organic pollutants
Thermal Pollution
Silt and suspended particles
Chemical contamination
Microbiological contamination
Fluctuating natural water temperature cycles
from industrial wastewater and domestic sewage can deplete oxygen from water as it decomposes and suffocates aquatic life.
ORGANIC MATTER
from domestic sewage, livestock and natural sources can spread infectious diseases through contaminated drinking water supplies
Pathogens and microbial contaminants
and industrial discharges can over stimulate the growth of algae that leads to eutrophication. Furthermore, high levels in nitrate in drinking water leads to illness in people
Nutrients from agricultural run-offs
from saltwater intrusions cause salt residue build-up in soils due to over irrigation or over-pumping of coastal aquifers. As irrigated waters evaporate from soils, salt residues are left on the soil to accumulate.
SALINIZATION
from electric power generation, industrial stacks, and vehicle emissions including acid mine tailings can lower the pH of soils and water.
ACIDIFICATION
from industries and mining sites can accumulate in the tissues of shellfish and fish. These are toxic to aquatic life and humans.
HEAVY METALS
from industrial sites, automobiles, agricultural fields, and municipal wastewaters can be toxic to aquatic fauna and humans.
Toxic organic compounds and micro-organic pollutants
from stored water in dams and reservoirs that warms up due to discharges from cooling towers can change the aquatic oxygen levels and rates of decomposition in the receiving waters.
THERMAL POLLUTION
from natural soil erosion due to road building, agricultural activities, construction, deforestation, and other land use changes can reduce water quality for drinking and recreation.
SILT AND SUSPENDED PARTICLES
can be caused by excess in nutrients, heavy metals, and persistent organic pollutants, resulting to acidification, changes in salinity and increase in sediment loads.
CHEMICAL CONTAMINATION
due to bacteria, viruses and protozoa in water is a leading global human health hazards.
MICROBIOLOGICAL CONTAMINATION
can affect metabolic rates and biological functions resulting to long-term population declines.
Fluctuating natural water temperature cycles
are physical and biological factors that include climate change, land conversion, plant nutrient use, and the onset of diseases and invasive species
DIRECT DRIVER
are demographic; economic; socio-political; cultural and religious; and scientific and technological factors
INDIRECT DRIVER
Soil Provides
Food, Fiber and Fuel
WATER
RAW EARTH MATERIALS
Surface Stability
Refugia
Pharmaceutical and Genetic resources
water, nutrients, and physical support for plant growth, bioenergy and fiber needed by man and animals
FOOD,FIBER AND FUEL
(retains, stores and purifies water)
water
topsoil, aggregates for construction, peat, etc.)
raw earth materials
(support for human habitations and related infrastructure
surface stability
(habitat for soil organisms, birds, etc.)
refugia
(source of biological materials)
Pharmaceutical and Genetic resources
(filters, buffers substances, transforms contaminants in water)
water quality
soil regulates
water quality
water supply
climate erosion
(water infiltration into soil, water flow within soil, and drainage of excess water out of soil and into groundwater and surface water)
water supply
(regulates CO2, N2O, and CH4 emissions; stores soil organic carbon and sequesters carbon from the atmosphere and land vegetation)
climate
(retains soil on the land surface)
erosion
soil supports
Nutrient Cycling
soil formation
(soil organisms transform organic materials; releases or retains nutrients on charged surfaces)
nutrient cycling
(weathers primary minerals; releases nutrients; transforms and increases organic matter; creates structures in soil aggregates and soil horizons for gas, water flow, and root growth; and creates charged surfaces for ion retention or exchange)
soil formation
Soil’s Cultural Services
Aesthetic and spiritual
heritage
(preserves natural and cultural landscape diversity, source of pigments and dyes)
Aesthetic and spiritual
(preserves archaeological records)
heritage
as runoff and base-flow into and from the catchment areas like lakes
surface water
in the cracks and spaces of soil, sand, and rocks underground, generally adequate and of high quality that does not require treatment for human use.
groundwater