ESS205H1 Study Guide - Final Guide: Polar Regions Of Earth, Ocean Acidification, Overfishing
Document Summary
Changing earth: terrestrial and water and the changing atmosphere and oceans. Forest: less than 1/3 earth"s total land area. Ecosystem services of forest: regulate biogeochemical cycles (absorb co2, release. O2), protect watersheds (affect precipitation), provide habitat, reduce erosion. Types of forest: boreal forest (northern coniferous and evergreen forest, spruces, pines, firs), temperate forest (deciduous like oak, beech/evergreen, coniferous), tropical forest (66% rain forest > 380cm rain, 33% loose leaves when dry) Pollution: acid rain (leaching of nutrition from soils), tropospheric ozone, hydrocarbon. Decrease soil fertility, increased soil erosion, desertification, increase extinction, climate changes (carbon, decline of rainfall, hydrology), 200 years of recovery. Transpiration: water from soil absorbed from roots and transported through plants, evaporated from leaves and stems; biological cooling process; water return to atmosphere. Jamie c. forest absorb, store, hold, slowly release water. Nutrient cycling: soils and biomass are major storage of nutrient.
