Forestry

Livelihood of thousand of people depends on the wood based industries

These one their existence primarily on the wood produce on the farmlands

Seasoned wood, wood treated with preservatives and wood in the form of veneer and board are an important component of these industries

All of the above

CFI is most accurte and determines growth under actual conditions.

Unlike two way and stand table method, it does not rely on assumption that trees during next ten years will grow at same rate as they have grown in th

Both (a) & (b)

All of the above

May – June

September – November

February – April

None of these

Ecosystem

Climatic community

Ecotons

Seral community

Pelophilous

Heliophilous

Psammophilous

Lithophilous

Artificial ecosystem

Forest ecosystem

Natural ecosystem

Grassland ecosystem

10-15%

15-20%

20-25%

2-5%

Quetta

Peshawar

Karachi

Islamabad

Producers

Primary consumers

Secondary consumers

Disinfactants

1988

1989

1990

1991