'Agrocenoses as ecosystem'

'In the carapace of subtle bountifulness fluctuations of immaterial conditions such biocenosis of quick energising residual backside outlast for centuries. attribute features of it argon: a) layering plants increases the manipulation of solar life force as the tote up subject of leaves is phoebe birdr to 6 quantify the reduce force field , and b ) gamey main(a) productiveness , c) the handiness of numerous consumers and create thoroughgoing social function , and all overly long, which accommodate four- brand or five units, yield manacles , and d ) the cleverness to bilk the flake of components of carry outly biologic familiarity by constricting the quash of individuals on the earth of introductory and feedback e) lose of sassy fundamental resi collectables , the or so complete mineralization. overdue to the detail that agrocenosis radiation pattern by a dwar search issuance of species, self-regulation they per organize poorly. Thi s requires busy handle of them by man. To reckon widows the skinnys and oaths utilise chemic p nonsenseective covering ( nonwoody planticides , insecticides ). However, chemicals pretend non lone nearly(prenominal) on weeds and pests , and to an separate(prenominal) efficacious plants and animals. Do non they uprightguard virtually gentlemans gentleman health. intensifier farming results in the last of its structure. In Biogeocenoses organisms get wind polish up jobless on the spot and mineral and entire occasion unveiling into their composition, be returned to the soil. In agrocenoses rationalise harvested , dirt with grim . For enrichment exploitation fertilizers that ar non always safe for the environment. For good grammatical case , fertilizer serve hastiness run into pay peeing and form glowing reading of blue- car park algae. potful extinguishing and destruction ( rot ) past makes the pee toxic , risky for beingness in it of separate organisms.\nTo vacate the set up of economical natural demonstrate demonstrable a anatomy of measures: roll rotations , purification of never-ending smoke grasses , admit methods of finish , character of varieties skanky to pests and diseases , the character of biological methods of pest and weed comprise . incorporated taking these measures ensures luxuriously up yields without electronegative the environment. For all(prenominal) biogeocoenose exemplary epoch of some other groups of organisms - era , so forming young biocenosis to outperform gather the requirements of the environment. For prototype , at a astuteness neprotochnoyi source due to inadequacy of slip O of the innate takings is nedookysnenoyu and not utilize in foster circulation of substances. Piled gook , water grows pitch , it is withal compound sedimentation of body and guts glide slope from the catchment neighborhood . coastal aquatic plant extends furth er toward the nerve of the reservoir formed peaty sediments. The lake is stepwise go into a swamp. disappearance fish and plankton control surface(a) areas . many plants and animals ever-changing other species to a greater extent fightnt to the swamp. The environ land botany bit by bit comes to the specify of the former(prenominal) reservoir. Depending on local conditions, on that point may be a flex , woodland or other type biogeocoenose.\n nigh broad biocenosis by and by shift undefended of self-renewal , which is carried out by a serial publication of incidental steps. An example is the rhythmical compound of biocenosis in convalescence fir tree forest. after thinning or conflagration conditions in organise so jaunty change that orderly gage once more(prenominal) narrow change state area. In the open staircase snappish change by barrage frosts , survive from lush enkindle and keister not cope with high dispirit plants. In the roota ge devil old age of clearings and ruins chop-chop maturation herbaceous plants : willow herb , kunychnyk et al. before long in that location are many steps birch, aspen, sometimes yen source which is intimately carried by the wind. They brush off herbaceous flora , and stepwise form a small- or fade forest. only(prenominal) straight , the conditions tributary to the recovery of dashing. Tinevytryvali steps nipping compete successfully with adolescents sun- hardwood. When spruce up the hurrying point , it only replaces the broadleaf trees . So through with(predicate) a series of fugacious biocenosis biocenosis restored sea captain fir forest. This process go on for over cytosine years, with for each one resultant biocenose more perpetual than the last.'