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This photo shows regeneration, a tree growing out of the stump of another tree that was felled in 1962 by the remnants of Typhoon Freda. A secondary forest (or second-growth forest ) is a forest or woodland area which has regenerated through largely natural processes after human-caused disturbances , such as timber harvest or agriculture ...
Water extraction plant alongside the flooding River Dove near Egginton, England, UK. Water extraction (also known as water withdrawal, water abstraction, and water intake) is the process of taking water from any source, either temporarily or permanently, for flood control or to obtain water for, for example, irrigation.
A plant whose natural habitat is water, living in or on water for all or a substantial part of its lifespan; generally restricted to fresh or inland waters. arachnoid Cobwebby, from being covered with fine white hairs. arborescent Tree-like in growth or general appearance. arboretum. pl. arboreta. A taxonomically arranged collection of tree s ...
While new pith growth is usually white or pale in color, as the tissue ages it commonly darkens to a deeper brown color. In trees pith is generally present in young growth, but in the trunk and older branches the pith often gets replaced – in great part – by xylem. In some plants, the pith in the middle of the stem may dry out and ...
Several trees normally have marcescent leaves such as oak (Quercus), [5] beech (Fagus) and hornbeam (Carpinus), or marcescent stipules as in some but not all species of willows . [6] All oak trees may display foliage marcescence, even species that are known to fully drop leaves when the tree is mature. [7]
The transpiration ratio is the ratio of the mass of water transpired to the mass of dry matter produced; the transpiration ratio of crops tends to fall between 200 and 1000 (i.e., crop plants transpire 200 to 1000 kg of water for every kg of dry matter produced). [10]
An arborist practicing tree care: using a chainsaw to fell a eucalyptus tree in a park at Kallista, Victoria.. Arboriculture (/ ˈ ɑːr b ər ɪ ˌ k ʌ l tʃ ər, ɑːr ˈ b ɔːr-/) [1] is the cultivation, management, and study of individual trees, shrubs, vines, and other perennial woody plants.
Forests or tree plantations, those whose primary purpose is the extraction of forest products, are planned and managed to utilize a mix of ecological and agroecological principles. [11] In many regions of the world there is considerable conflict between forest practices and other societal priorities such as water quality, watershed preservation ...