01:450:102 Midterm: Exam 2 Study Guide
10 Nov 2016
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Global environment exam 2 study guide: the three types of plant life form. Herbaceous non-woody stem: different vegetation types. Forest - trees with a contiguous canopy. Woodland trees with a non-contiguous canopy. Savannah - herbaceous with scattered trees or shrubs. Grassland - all herbaceous plants: the 5 environmental controls on vegetation. The most important of these on a global scale. They each affect the amount of resources (light energy, water, and nutrients) available to a plant: climate (also the most important of these on a global scale) Climate effects (1) energy from the sun; (2) water: topography. Controls the microclimate experienced by the plant (e. g. via slope aspect) Affects delivery of groundwater to the plant: soil. Holds moisture and provides nutrients to the plant. Variation in nutrients and water attributed to variation in soil type: biota (via indirect competition) Plants affect each other through competition for resources. Insects provide pollination, or can defoliate plants: disturbance.
