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Sbt 409: Range Land Ecology In Kenyatta University Question Paper

Sbt 409: Range Land Ecology In Kenyatta University

Course:Bachelor Of Science In Biology

Institution: Kenyatta University question papers

Exam Year:2008

1
KENYATTA UNIVERSITY
UNIVERSITY EXAMINATIONS 2007/2008
INSTITUTE OF OPEN LEARNING
SPECIAL EXAMINATION FOR THE DEGREE OF
BACHELOR OF EDUCATION AND BACHELOR OF SCIENCE
SBT 409: RANGE LAND ECOLOGY
Reg.No. ___________________________ Name: ______________________________
DATE: Wednesday 8th October 2008 _____________TIME: 10.00am – 12.00am
INSTRUCTIONS: Answer ALL questions in Section A and any ONE question in
Section B. Answers in Section A should be concise and should be written in spaced
provided below each question.
Section A: Short answer questions (5 marks each, total = 40 marks)
Q1. Define
(a) Overgrazing
(b) Migration corridors
(c) Potential evaporation
2
Q2. (a) List four grazing systems
(b) Why must a watering point be placed in each grazing block?
Q3. (a) What is ALDEV?
(b) List THREE problems faced by ALDEV.
Q4. (a) List THREE sources of surface water in rangelands.
(b) Name TWO factors that affect soil erosion by run-off.
3
Q5. Differentiate between reseeding and overseeding in range ‘pasture’ management.
Q6. Briefly discuss TWO objectives of bush control.
4
Q7. ‘Foreign tourism is seen as a mixed blessing by economists, politicians, some
ecologists and wananchi’. Briefly discuss.
Q8. List FIVE range policies.
5
Section B: Essay type questions (30 marks)
Write one essay on any ONE of the following:
Q1. Range land conservation methods.
Q2. Adaptation features of range plants.
Q3. Variables in grazing control in rangelands.
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