Divisions of Administrative Areas refer to the divisions of administrative areas by the state£®The Constitution of the People¡¯s Republic of China stipulates the following principles for the divisions of administrative areas£º1)The whole country is divided into provinces£¬autonomous regions and municipalities directly under the central government£»2) Provinces and autonomous regions are divided into autonomous prefectures£¬counties£¬autonomous counties and cities£»3) Autonomous prefectures are divided into counties, autonomous counties and cities£»4) Counties and autonomous counties are divided into townships£¬ethnic townships and towns£¬5) Municipalities under the central government and large cities are divided into districts and counties£»6) The state will£¬when necessary£¬establish special administrative regions£®ª¥
    Land Resource? Land refers to the surface of the earth£¬consisting of mainly rocks and its weathering and earth£®Land resource can be classified£¬by its utilization£¬as land for agriculture£¬land for construction and unused land£®Land for agriculture includes cultivated land£¬plantation£¬forestland£¬grassland and waters£®Land for construction includes land for residential purpose£¬for manufacturing and mining£¬for transportation and for water conservancy projects£®Unused land refers to land other than land for agriculture and construction£¬including beaches£¬deserts£¬Gobi£¬glaciers and rock mountains£®ª¥
    Area of Cultivated Land refers to area of land reclaimed for the regular cultivation of various farm crops£¬including crop-cover land, fallow£¬newly reclaimed land and land laid idle for less than 3 years£®ª¥
    Area of Afforested Land refers to land for trees, bamboos£¬bushes and mangrove including forest-cover land£¬bush-covered land£¬sparse forest land£¬land planned for forestation, slash and nurseries of young trees£®ª¥
    Area of Grassland refers to areas of grassland£¬grass-slopes and grass-covered hills with a vegetation-covering rate of over 5% that are used for animal husbandry or harvesting of grass£®It includes natural£¬cultivated and improved grassland areas£®ª¥
    Forest Resource refers to forests£¬trees£¬forestland and wild animals£¬plants and microorganism that live on forests and trees. Trees include trees and bamboos£®Forest refers to the population of clusters of trees and other plants£¬animals and microorganism as well as the earth and climate that have interactions with the trees£®ª¥
    Total Standing Stock Volume refers to the total stock volume of trees growing in land£¬including trees in forests£¬tress in sparse forests£¬scattered trees and trees planted by the side of villages£¬farm houses and along roads and rivers£®ª¥
    Forest Coverage Rate refers to the ratio of area of afforested land to total land area£®It is a very important indicator that reflects the status of abundance of forest resource and ecosystem balance£®Forest area includes the area of trees and bamboo growing with a canopy density above 0.2£¬the area of shrubby trees according to regulations of the government£¬the area of forest land inside farm land and the area of trees planted by the side of villages£¬farm houses and along roads and rivers£®The formula for calculating forest coverage rate is as follows£ºª¤Forest Coverage Rate£¨%£©£½£¨Area of Afforested Land/Area of Total Land£©¡Á 100%
    Forest Area refers to wooded area, i.e. the area of forest where trees and bamboo grow with a canopy density above 0.2 (inclusive) or a crown width above 10 meters£¬including natural and planted coniferous forest, broad-leaved forest£¬mixed forest, and bamboo groves, but excluding shrubbery and open forest.
    Stock Volume of Forest refers to total stock volume of wood growing in forest area£¬which shows the total size and level of forest resources of a country or a region. It is also an important indicator of the richness of forest resource and the status of forest ecological environment£®ª¥
    Water Resource Water exists in the nature in solid£¬liquid and gaseous states£¬ is distributed in the ocean£¬land£¨including earth£©and air£¬and constitutes water resource through circulation£®Water resource includes surface water and underground water that is controlled by human beings for irrigation£¬power-generation£¬water supply£¬navigation and cultivation£®It also includes rivers£¬lakes£¬wells£¬springs£¬tides£¬gulfs and water area for cultivation£®Water resource as an indispensable natural resource for the development of national economy£®ª¥
    Mineral Resources refer to useful minerals that can be used for industrial or agricultural purposes enriched in lithosphere or on earth surface due to geological processes£®Minerals are important natural resources and important material basis for social development. ª¥
    Basic Reserves of Mineral Resources Basic reserves are part of total identified mineral resources that meet present mining and production standards£¬which is the part of reserve controlled, proven, and found to be of economic or marginal value through feasibility assessment or pre-feasibility study. Basic reserves are indicated as a figure including designing and mining loss.