经济林的英文：
economic forest
economic forestry
production forest
economic forest
economic forestry
production forest

economic是什么意思：
adj. 经济上的；经济学的

an economical shopper;
精打细算的购物者;

economic planning
制订经济计划

forest是什么意思：
n. 森林；一丛

They censused the bear in the forest.
他们统计调查森林中熊的数量。

There is a small shed in the midst of the forest.
这座森林的中间有一间小棚屋。

The wanted man hid in the forest.
那受通缉的男子躲进了森林里.

forestry是什么意思：
n. 林产,森林地

There are other concession to agriculture, forestry and small businesses.
对农业、林业及小企业也给予其它优惠。

Output Value of Farming, Forestry, Animal Husbandry, and Fishery
农林牧渔业总产值

The competent forestry authorities under the State Council shall be responsible for the forestry work nationwide.
国务院林业主管部门主管全国林业工作