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EXPLANATION OF TERMINOLOGY, CONTENT
AND METHODOLOGY OF SOME STATISTICAL INDICATORS
ON LAND, CLIMATE
LAND
Total land area
of an administration unit is the aggregate area of all types of
land within the boundary line of each administration unit which is determined in
accordance with the provisions of law.
Agriculture production land
is the land used in agricultural production,
including annual crop land and perennial crop land.
Forestry land
is the land under forests (including natural forests and planted
forests) that meet the forest standards prescribed by the legislation on forest
protection and development, and newly planted forestor plantation forest in
combination with natural farming.
Specially used land
includes land for offices of the State agencies, land for
construction of for-profit facilities; land for security and national defense purposes;
land for non-agricultural production and business, and land used for public
purposes.
Residential land
is the land used for construction of houses and facilities for
living activities; garden and pond attached to house in the same residential land plot
(including garden and pond attached to detached house) which is recognized as
residential land. It includes residential land in rural areas, residential land in urban
areas.
Unused land
includes all categories of land of which the purposes of use have
not been yet determined, including unused plain land; unused hilly land; rocky
mountains without forests.
CLIMATE
Average air temperature in months
is the average of average air temperature
of days in the month.
Average air temperature in year
is the average of average air temperature of
days in the year.
•
Air temperature
is measured by normal thermometer, maximum thermometer
(mercury), minimum thermometer (alcohol liquid) and thermo graph (sensor is a
bi-metal plate) exposed to the air in a meteor bust at altitude 2m away from the
ground, sheltered from direct solar radiation.
•
Daily average air temperature
is calculated using the simple arithmetic mean
from the results of 4 main observations in the day at 1 a.m., 7 a.m., 13 p.m., 19 p.m.
or from the results of 24 observations at the time of 1 a.m., 2 a.m., 3 a.m.,... 24 p.m.
of the thermometer.
Number of sunshine hours in months
is the sum of sunshine hours of the days
in the month. Numbers of sunshine hours are hours with direct solar radiation equal