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UPSC Indian Forest Service Examination Agroforestry & Trees on Farms for Sustainability: practice questions

UPSC Indian Forest Service Examination · India · Union Public Service Commission

Original practice questions written to the published syllabus · not past papers
10worked here, free
47written to this exam in this subject
8syllabus units

What this subject covers

Trees in farmland as a sustainability tool: system types, tree-crop interactions, carbon, soil and biodiversity benefits. Silviculture, forest management and REDD+ are covered in depth in the Forestry track; this subject keeps to trees on farms.

In the exams: ICAR AIEEA-PG Forestry group 9.2; ICAR AICE Agroforestry; overlaps with the Forestry track

Where the 47 questions fall

How our questions for UPSC Indian Forest Service Examination spread across the units of Agroforestry & Trees on Farms for Sustainability. Difficulty: 9 easy, 30 medium, 8 hard.

Classification of agroforestry systems8
Tree-crop interactions: competition and facilitation7
Silvopastoral and silvoarable systems7
Agroforestry for livelihoods and markets7
Policy and tenure barriers to trees on farms7
Agroforestry for soil fertility and erosion control6
Shelterbelts, windbreaks and boundary plantations4
Carbon storage in agroforestry1

10 practice questions, worked

Choose an answer, then open the working. Each explanation says why the right answer is right and why the others are not.

1 · Classification of agroforestry systems · easy

ICRAF, the World Agroforestry Centre, was founded in 1978 with its headquarters in:

  1. Bogor
  2. Nairobi
  3. Jhansi
  4. Los Baños
Answer and working

B. Nairobi

ICRAF began in Nairobi in 1978 as the International Council for Research in Agroforestry.

2 · Classification of agroforestry systems · medium

Nair's classification groups agroforestry systems on four bases. They are:

  1. Climatic, edaphic, biotic, physiographic and historical factors
  2. Annual, biennial, perennial and permanent
  3. Structural, functional, socio-economic and ecological
  4. Public, private, communal and open access
Answer and working

C. Structural, functional, socio-economic and ecological

Nair's four bases: structure, function, socio-economic scale and ecological zone.

3 · Classification of agroforestry systems · medium

Taungya, in which farmers grow crops between young forest tree seedlings for the first few years, originated in:

  1. Kenya
  2. Brazil
  3. Burma
  4. Nepal
Answer and working

C. Burma

Taungya developed in Burma in the nineteenth century and spread to India and elsewhere.

4 · Tree-crop interactions: competition and facilitation · easy

In the interaction equation I = F - C used for agroforestry, C stands for:

  1. Carbon stored in tree biomass each year
  2. Competition for light, water and nutrients
  3. Crop yield in the sole-crop control plot
  4. Cost of establishing the tree component
Answer and working

B. Competition for light, water and nutrients

I is the net interaction, F facilitation and C competition (Ong and colleagues).

5 · Tree-crop interactions: competition and facilitation · medium

A practice that reduces below-ground competition between boundary trees and crops is:

  1. Planting the crop closer to the tree trunks
  2. Root pruning or trenching along the crop side
  3. Adding more irrigation only to the trees
  4. Removing all leaf litter from the field
Answer and working

B. Root pruning or trenching along the crop side

Cutting lateral roots near the crop limits overlap of root zones.

6 · Tree-crop interactions: competition and facilitation · hard

In a tree-crop system the crop yields 70% of the sole crop and the trees 60% of a sole plantation. The land equivalent ratio is:

  1. 0.65
  2. 0.42
  3. 1.3
  4. 1.0
Answer and working

C. 1.3

LER = 0.7 + 0.6 = 1.3. Averaging gives 0.65 and multiplying gives 0.42, both wrong.

7 · Agroforestry for livelihoods and markets · easy

Shea butter, an important income source for women in the Sahel, comes from parkland trees of:

  1. Parkia biglobosa
  2. Adansonia digitata
  3. Faidherbia albida
  4. Vitellaria paradoxa
Answer and working

D. Vitellaria paradoxa

Shea is Vitellaria paradoxa; Parkia gives néré, Adansonia is baobab.

8 · Agroforestry for livelihoods and markets · medium

Trees on farms are often described as 'savings banks' because farmers can:

  1. Deposit them in a bank as legal security
  2. Earn fixed interest on standing trees
  3. Avoid ever paying tax on any income
  4. Harvest and sell them when cash is needed
Answer and working

D. Harvest and sell them when cash is needed

Standing trees can be cut and sold for school fees, weddings or emergencies.

9 · Agroforestry for livelihoods and markets · medium

A recurring problem for farmers growing poplar for timber in north-western India has been:

  1. Price collapse when many farmers harvest at once
  2. A permanent ban on poplar wood processing
  3. Poplar failing to grow on any irrigated or canal-fed land
  4. Prices rising forever with no fluctuation
Answer and working

A. Price collapse when many farmers harvest at once

Synchronised planting led to gluts and low prices at harvest.

10 · Agroforestry for livelihoods and markets · medium

Contract or buy-back arrangements between wood-based industries and farmers mainly:

  1. Require farmers to stop growing crops
  2. Reduce market risk for tree growers
  3. Guarantee higher prices than any market
  4. Transfer land ownership to industries
Answer and working

B. Reduce market risk for tree growers

They assure a market and often supply quality planting stock.

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Read the subject

Agroforestry & Trees on Farms for SustainabilityThe full study manual, free UPSC Indian Forest Service ExaminationFormat, sections and how it has changed

Agroforestry & Trees on Farms for Sustainability for other exams

ICAR AICE-JRF/SRF · IndiaCertified Crop Adviser with Sustainability Specialty · USA / Canada / internationalUGC NET · India

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