Deforestation and Forest Change Quiz

Question 1An illustrative forest loses 960 ha from a starting area of 16000 ha. Find the percentage lost, rounded to one decimal place.

Enter a number in %.

Answers within 0.05 % of the expected value are accepted.

Question 2Over 4 years, 1440 ha are cleared from 24000 starting hectares. Find the simple annualized loss as a percentage of starting area per year, rounded to two decimals.

Enter a number in %/year.

Answers within 0.005 %/year of the expected value are accepted.

Question 3After clearing, a wooded site becomes cropland and is maintained for farming. Which classification fits?

A harvesting interval within continuing forest managementA conversion to agricultural use after removal of woodlandA seasonal cycle that preserves the preceding forest useA gain in wooded land caused by keeping tree crops nearby

Question 4Despite retaining its land-use classification, a forest loses large trees and habitat quality. What term describes the change?

Degradation of the remaining woodlandConversion to a housing estateA shift to cultivated fieldsAn increase in ecological condition

Question 5Repeated burns kill saplings as they emerge in a cleared forest. What mechanism obstructs recovery?

Competition under a closed canopy stops further establishmentThe emerging saplings have already restored the canopyThe site fails to produce seedlings after the first burnYoung trees die before they rebuild the canopy

Question 6Roots and canopy are removed from a sloping catchment. Which process raises concern during heavy rain?

More exposed soil being detached and carried downslopeA new root network forming as soon as trees are cutA decline in surface exposure as canopy cover is removedThe conversion of rainfall into stored carbon in bare rock

Question 7Satellite imagery shows bare ground where trees stood. What evidence best identifies the subsequent land use?

The cleared area’s outline as the crop planted thereThe legal forest boundary as the use actually practicedThe follow-up evidence from visits and dated parcel recordsThe earlier canopy density as the next land-cover class

Question 8A country’s total tree-covered area is stable while natural forest is replaced by new plantations elsewhere. What should be reported to show the changes behind the net total?

Habitat quality maintained by the stable forest totalRecovery of natural forest measured by plantation ageGross losses and gains grouped by forest type and locationWoodland gains calculated from the number of saplings ordered

Question 9A buyer wants to assess forest conversion associated with a traded input. Which link matters?

Using purchased tonnage to calculate the hectares newly clearedAssigning forest conversion to the final processor’s premisesAssessing the source forest from the product’s retail priceTracing suppliers back through traders to the producing parcel

Question 10A plan treats young planted trees as an immediate replacement for an old forest. What is missing from that comparison?

Young trees already contain the carbon held in the old forestRecovery requires time and may produce a different ecosystemOnce the planting target is reached, the former habitats returnReplanting an equal area restores the earlier soil conditions

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Deforestation and Forest Change Quiz

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