Environment and Society: A Critical Introduction
2nd Edition
ISBN: 9781118451564
Author: Paul Robbins, John Hintz, Sarah A. Moore
Publisher: Wiley-Blackwell
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Question
Chapter 14, Problem 1QR
To determine
The ways by which turf grasses grow and also explain the evolution and implication of maintaining these grasses.
Expert Solution & Answer
Answer to Problem 1QR
Turfgrasses are the low mowing lawn grass, which was earlier used as livestock for grazing animals. These grasses cover the ground as a dense mat. Many chemicals are used for the maintenance of these grasses.
Explanation of Solution
Turfgrasses are low mowing grass that is also known as the cool-season grasses or the lawn grasses. These grasses hold the surface layer of soil by producing acceptable turf. These are narrow-leaved grass species. These species form a consistent ground cover and are tolerant to pollution. These grasses widen into a dense mat even after being grazed by the animals.
Turfgrass was earlier used as livestock for cattle, sheep and other grazing animals but after 1940, it was used for aesthetic purpose. Maintenance of grass involves the use of many chemicals. Insecticide and pesticides are used to maintain and protect these grasses. The excessive use of these chemicals is degrading the environment.
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44) In periglacial environments, the layer of ground that thaws every summer and freezes every winter is called
A) frost layer
B) permafrost
C) active layer
D) discontinuous permafrost
Use the attached piezometer map to make your own, clean version of the map, and indicate the elevation of the water table at all piezometer locations.
Draw equipotential lines (lines of equal water table elevation) using regular intervals – creating a contoured map of the water table.
Determine the direction of groundwater flow based on the horizontal gradient. Label the areas of recharge and discharge directly on your map.
Flow lines: Draw flow lines on your water table map. The lines should be at right angles to the equipotential lines and extend from the recharge area to the discharge area.
Hydraulic Gradient, Specific Discharge (Darcy Flux), Average Linear Velocity:
Using your water table map, estimate an average hydraulic gradient between two locations, call them locations A and B, one at the eastern-most and a second at the western-most extent of your dataset (note the north arrow on the map).
Calculate the specific discharge, q, between the two locations. For this calculation…
Calculate all the values of table 1:
Q in (L/day)
Q out (L/day)
Residence time (days)
Please show all steps
Chapter 14 Solutions
Environment and Society: A Critical Introduction
Knowledge Booster
Similar questions
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- 43) Glacial abrasion is when A) boulders are fragmented into smaller particles under the weight of the overlying ice. B) blocks of rocks are plucked from the underlying bedrock. C) rocks are carried at the base of a glacier and grind away at the underlying bedrock. D) debris fall onto the top of the glacier and are carried down glacier.arrow_forward34) Which of the following is true of soils? A) Soils rich in mineral matter are usually dark in colour. B) They usually require hours or days to form. C) Their development is affected by climate and organisms. D) Their properties are not affected by the type of rock from which they form. E) Older soils usually have fewer horizons than younger soils.arrow_forward44) In periglacial environments, the layer of ground that thaws every summer and freezes every winter is called A) frost layer B) permafrost C) active layer D) discontinuous permafrostarrow_forward
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