How to calculate forest cover and what is the relationship with forest land area

Forest cover.

Forest area Total land area * 100%.

Forest density = forest cover total forest area * 100% = number of trees corresponding to forest land area.

The area of woodland refers to the trees that grow along the river.

The land area of shrubs, bamboo forests and coastal trees does not include the area of green space in residential areas and forest land on highways and the area of revetments of railways, highways, rivers and ditches.

Extended Materials. 1. When calculating the forest coverage rate, the forest area includes the area of arbor forest land and bamboo forest land with canopy density greater than that, the area of shrub forest land specially stipulated by the state, the farmland forest network and the coverage area. Villages, roads, water, and trees around houses.

The forest coverage rate reflects the abundance and ecological balance of forest resources.

important metrics. Different countries use different methods to calculate forest cover. For example, China's forest coverage rate refers to the percentage of the total coverage area of arbor forests, bamboo forests, shrublands specially designated by the state, farmland forest networks, and trees next to villages, houses, water, and roads in the land area.

Due to the limitations and influences of the geographical environment, the regional distribution of forests is very uneven.

2. The natural forest coverage rate of each country is different, because the natural vegetation itself is diverse. Indonesia.

Countries such as Japan and Japan have their own natural vegetation that is dominated by forests, so even if there is a certain amount of deforestation, their forest cover may be higher than that of countries that do not have much deforestation, but their natural vegetation is not dominated by forests. It makes no sense to look at the forest cover of a country. It depends on the change in forest cover.

However, even if there is a change in forest cover, it can only tell a certain problem, because it does not reflect the change in forest quality. If there is little change in forest cover, but the quality of the forest is declining, it still indicates that there is some damage.

3. In addition, the forest coverage rate is the same, but the total forest area is different. Similarly, deforestation capacity has different impacts on forest cover. If the total forest area is large, the decrease in forest cover is not significant.

In addition, deforestation itself is not the cause of deforestation, but the result of a combination of destructive factors. If a country harvests more and has less other destructive factors, the reduction in forest cover is likely to be no more severe than in a country with less deforestation but more other destructive factors.

Forest cover = - forest area Total land area * 100% forest density = forest cover area Total forest area * 100% number of trees Corresponding forest land area.

The forest land area refers to the land area where trees, shrubs, bamboos, coastal trees and other trees grow along the river, excluding the area of residential green land and the area of forest land for road protection and bank protection of railways, highways, rivers and ditches.

Forest cover is the ratio of forest area to total land area, and different countries take different approaches to calculating forest cover.

China's forest coverage rate refers to the percentage of land area of arbor forests, bamboo forests, and shrub forests specially designated by the state above canopy density. Forest cover is generally expressed as a percentage.

Because the natural forest cover of each country itself is different, because the natural vegetation itself is diverse.

Strengthen the protection of forest resources, improve the capacity of forestry law enforcement, severely crack down on the destruction of forest resources, do a good job in the prevention and control of forestry pests and forest fire prevention, and ensure the continuous growth of forest resources.

Not all areas with grass can be counted as green space, and land within 1 meter of the exterior wall of the building and the edge of the road and land with a depth of less than 3 meters of surface cover, regardless of whether there is greenery on them, are not counted in the green area. The "various types of green space within the scope of residential land" referred to in the green space rate mainly include public green space, green space next to houses, green space belonging to supporting public buildings and road green space. Sculptures, pools, pavilions and other green sketches that cover an area of no more than 1% in the public green space can be regarded as green space.

The formula for calculating the greening rate: green space rate = green space area land area.

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The calculation formula is: Forest coverage rate (%)Forest area Total land area 100 Forest coverage rate, also known as forest cover rate, refers to the percentage of forest area in a country or region, which is an indicator that reflects the forest area occupation of a country or region or the richness of forest resources and the degree of greening, and is one of the important bases for determining the policy of forest management and development and utilization.

When calculating the forest coverage rate, the forest area includes the area of arbor forest land and bamboo forest land with canopy density of 0 2 or more, the area of shrub forest land specially stipulated by the state, the farmland forest network and the area covered by the forest trees on the four sides (next to the village, next to the road, next to the water, next to the house). Forest coverage is an important indicator that reflects the richness and ecological balance of forest resources.

The formula is: Forest cover (%)Forest area Total land area 100 Different countries use different methods to calculate forest cover. For example, China's forest coverage rate refers to the area of arbor forests, bamboo forests, shrub forests and economic forest land specially designated by the state, as well as the total coverage area of farmland forest network and forests next to villages, houses, watersides and roadsides to the percentage of land area.

Due to the constraints and influences of the geographical environment, the regional distribution of forests is very uneven.

When calculating the forest coverage rate, the forest area includes the area of arbor forest land and bamboo forest land above canopy density, the area of shrub forest land specially specified by the state, the farmland forest network and the area covered by the forest trees on the four sides (next to the village, next to the road, next to the water, next to the house). Forest coverage is an important indicator that reflects the richness and ecological balance of forest resources.

Different countries take different approaches to the calculation of forest cover. For example, China's forest coverage rate refers to the percentage of land area covered by arbor forests, bamboo forests, and shrub forests specially specified by the state, as well as farmland forest nets, and forests next to villages, houses, watersides, and roadsides. Due to the constraints and influences of the geographical environment, the regional distribution of forests is very uneven.

Vegetation cover refers to all vegetation, including herbaceous woody vegetation, and its coverage rate is calculated as dividing the vegetation cover area in an area by the total area of the area.

with forest cover.

The difference is that the vegetation cover refers to a wider range.

Forest cover = - forest area Total land area * 100% forest density = forest cover area Total forest area * 100% number of trees The corresponding forest ground travel volume.

The dust area of Linkou Town is the land area where trees, shrubs, bamboos, coastal rivers and other trees grow back to Zen forests, excluding the area of residential green land and the area of road protection and bank protection of railways, highways, rivers and ditches.