Siv lub hav txwv yeem kaw tas li, Tebchaws Askiv tau npog los ntawm thaj chaw tsis sib xws ntawm hav zoov, nrog rau ntau theem ntawm kev qhib siab los ntawm cov xwm txheej hauv zos xws li cua daj cua dub, hluav taws kub hav zoov lossis dej nyab. Tab sis cov tsiaj qus pom tau tias tsis ua lub luag haujlwm kom txog thaum pib ua liaj ua teb.
Thaum twg England tau npog hauv hav zoov?
Woodland colonized teb chaws Aas Kiv kwv yees 10,000 xyoo dhau los, tom qab qhov kawg glaciation, ncav cuag ib tug natural equilibrium ntawm 7,000 thiab 5,000 xyoo dhau los (Godwin, 1975; Peterken Ib., 1993). Thaum lub sij hawm ncov no lub 'wildwood' yog xav kom tau npog ib ncig ntawm 75% ntawm toj roob hauv pes (Peterken, 1993).
Puas yog London ib zaug hav zoov?
Tus thawj coj hais tias muaj qee qhov 65,000 hav zoov thiab cov ntoo sawv hauv nroog, npog ntau dua 17,500 daim av, tsuas yog nyob rau ib feem tsib ntawm tag nrho cheeb tsam ntawm Greater London. … Thiab ob feem peb ntawm nws tau sau npe ua hav zoov thaum ub, qhia tias nws yog ib feem ntawm qub hav zoov uas ib zaug npog lub tebchaws.
Nyob teb chaws twg yog hav zoov?
Qhov no sawv cev 13% ntawm tag nrho thaj av hauv tebchaws Askiv, 10% hauv tebchaws Askiv, 15% hauv Wales, 19% hauv Scotland thiab 9% hauv Northern Ireland. Ntawm tag nrho UK thaj chaw ntoo, 0.86 lab hectares yog tswv lossis tswj los ntawm Forestry England, Forestry thiab Land Scotland, Natural Resources Wales lossis Forest Service (hauv Northern Ireland).
Puas muaj tej qub hav zoov loj hlobhauv England?
Txij li xyoo 1930s yuav luag ib nrab ntawm cov ntawv dav dav thaum ub woodland hauv tebchaws Askiv thiab Wales tau cog nrog conifers lossis tshem tawm rau kev ua liaj ua teb. Tsuas yog 3,090 square kilometers (760,000 acres) ntawm ancient semi-natural woodland ciaj sia nyob rau hauv teb chaws Aas Kiv - tsawg dua 20% ntawm tag nrho cov ntoo.
