Explanatory Notes on Main Statistical Indicators

Forest Area  refers to the area of forest land where trees and bamboo grow with canopy density above 0.3including land of natural woods and planted woods, but excluding bush land and thin forest land. It reflects the total areas of afforestation.

Forest Coverage-rate  refers to the ratio of area of afforested land to total land areaThis indicator shows the forest resources and afforestation progress of a country or a regionAccording to regulations of the government in addition to afforested landthe area of bush forest, the area of forest land inside farm land and the area of trees planted by the side of farm houses and along the roads, rivers and fields should also be included in the area of afforested land in the calculation of the forest coverage-rate. The formula for calculating forest coveragerate is as follows:

Forestry coverage-rate(%) = (Area of Afforested Land /Area of Total Land)*100%

Total Standing Stock Volume  refers to the total stock volume of trees growing in landincluding trees in forest tress in sparse forest, scattered trees and trees planted by the side of farm houses and along the roads, rivers and fields.

Stock Volume of Forest  refers to total stock volume of wood growing in forest areawhich shows the total size and level of forest resources of a country or a region.

Grass Land  refers to prairies, grasslands on the slopesand grass-mountains in pastoral and agricultural areas used for herding and grass growing with vegetation coverage above 5%,including naturalplanted or improved grasslands.

Inland Water Area  refers to water area of riverslakespondsreservoiretc.

Ensured Mineral Reserves  refer to the actual mineral reserves, which equal to the proven mineral reserves (including industrial reserves and prospective reserves) minus extracted parts and underground losses. This indicator shows the current condition of the mineral resources of a country