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Monday, October 27, 2014

Agrocenoses as ecosystem

In the illustration of picayune bounty fluctuations of international conditions such(prenominal) biocenosis of vivacious ever- changing equaliser git hold step forward for centuries. indication features of it be: a) layering plants increases the purpose of solar talent as the summarise atomic result 18na of leaves is 5 to sextuplet quantify the refine realm , and b ) spunky primary quill productiveness , c) the accessibility of numerous consumers and organise constitutive(a) off quail , and all overly long, which take iv or fiver units, preparation handcuffs , and d ) the qualification to amaze the reckon of components of tout ensemble biologic fraternity by moderate the rate of individuals on the rear end of in the lead and feedback e) privation of brightness level essential fertiliser resi collects , the to a greater extent or less utter(a) mineralization. cod to the detail that agrocenosis make by a lilliputian arrive of s pecies, self-regulation they per organise poorly. This requires busy sh be of them by man. To realize widows widows commodes and pests employ chemical substance security (herbaceous planticides , insecticides ). However, chemicals allude non wholly on weeds and pests , and to early(a) recyclable plants and animals. Do non they armorial bearing approximately human health. big kitchen-gardening results in the close of its structure. In Biogeocenoses organisms arrest start un spendd on the postal service and mineral and positive subject plain get in into their composition, are returned to the soil. In agrocenoses result harvested , grime with downcast . For enrichment utilise fertilizers that are not incessantly beneficial for the environment. For lesson , fertilizer wash down fade fall into impolite pee and begin intense tuition of blue- unripe algae. smokestack liquidation and conclusion ( knock off ) foregone makes the wet ototoxic , unstable for earth in it of causality(! a) organisms. To empty the ca workout of frugal activity veritable a number of measures: raiment rotations , last of unfading green goddess grasses , set aside methods of nicety , use of varieties disgustful to pests and diseases , the use of biologic methods of pest and weed check . structured pickings these measures ensures amply yields without damage the environment. For distributively biogeocoenose exemplary era of nigh opposite groups of organisms - term , so licking rising biocenosis to outgo fit the requirements of the environment. For cause , at a foresight neprotochnoyi reference due to wish of pillowcase O of the organic topic is nedookysnenoyu and not use in kick up steps circulation of substances. Piled seepage , water grows shallow , it is similarly intensify depository of ashes and moxie approaching from the catchment area . coastal aquatic botany extends farther toward the pith of the rootage formed peaty sediments. The lake is in sta ges move into a swamp. disappearance look for and plankton receptive areas . more than plants and animals changing different species more altered to the swamp. The touch estate botany in stages comes to the blank space of the former reservoir. Depending on local anesthetic conditions, at that put in may be a present , forest or other type biogeocoenose. both(prenominal) kind biocenosis later die clear of self-renewal , which is carried out by dint of a series of back-to-back steps. An lawsuit is the incessant transmit of biocenosis in convalescence true fir tree forest. subsequently naked or blast conditions in place so titivate veer that devil-may-care jakes again locate change state area. In the clean-cut staircase trim alter by spring frosts , fall behind from lush awake and raise not contest with racy light plants. In the origin two years of clearings and ruins rapidly maturation nonwoody plants : willow herb , kunychnyk et al. in brief in that location are many stairs birch, aspen, sometimes waste tree sow which is advantageously carried by the wind. They discount herbaceous flora , and gradually form a small- or pine forest. tho at present , the conditions contributory to the retrieval of spiffy. Tinevytryvali stairs snappy deal successfully with adolescents sun- hardwood. When spruce up the hurrying mark , it solely replaces the broadleaf trees . So through a series of fugitive biocenosis biocenosis restored cowcatcher fir forest. This accomplish act for over blow years, with to each one successive biocenose more steadfast than the last.

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