Asayansi akuti anthropogenic zochita zimakhudza chikhalidwe cha chilengedwe. Mavuto azachilengedwe m'nkhalango ndi amodzi mwamavuto apadziko lonse lapansi m'nthawi yathu ino. Ngati nkhalango yawonongedwa, ndiye kuti moyo udzasowa padziko lapansi. Izi ziyenera kuzindikiridwa ndi anthu omwe chitetezo cha nkhalango chimadalira. Kale, anthu amalemekeza nkhalango, amaiona kuti ndi yosamalira banja ndipo amaisamalira.
Kudula mitengo mwachangu sikungowononga mitengo kokha, komanso nyama, kuwononga nthaka. Anthu omwe amadalira nkhalango kuti azipeza zofunika pamoyo amakhala othawirako zachilengedwe akamataya moyo wawo. Mwambiri, nkhalango zimaphimba pafupifupi 30% yamtunda. Koposa zonse pa dziko lapansi la nkhalango zotentha, komanso zofunika kwambiri ndi nkhalango zakumpoto za coniferous. Pakadali pano, kuteteza nkhalango ndi vuto lalikulu m'maiko ambiri.
Nkhalango zamvula
Nkhalango zotentha zimakhala ndi malo apadera pachilengedwe cha dziko lapansi. Tsoka ilo, tsopano pali kudula mitengo mwamphamvu ku Latin America, Asia ndi Africa. Mwachitsanzo, ku Madagascar, 90% ya nkhalango yawonongeka kale. Ku Africa ya equator, nkhalango yadulidwa pakati poyerekeza ndi nthawi yam'mbuyomu. Mitengo yoposa 40% yam'malo otentha yadulidwa ku South America. Vutoli liyenera kuthetsedwa osati kwanuko kokha, komanso padziko lonse lapansi, popeza kuwonongedwa kwa nkhalango kudzatsogolera ku tsoka lachilengedwe padziko lonse lapansi. Ngati kudula nkhalango m'nkhalango zam'malo otentha sikutha, ndiye kuti 80% ya nyama zomwe zikukhala pano zifa.
Madera ozunza nkhalango
Nkhalango za dziko lapansi zikudulidwa mwachangu, chifukwa nkhuni ndizofunika ndipo zimagwiritsidwa ntchito m'njira zosiyanasiyana:
- pomanga nyumba;
- m'makampani opanga mipando;
- popanga ogona, ngolo, milatho;
- pomanga zombo;
- m'makampani opanga mankhwala;
- popanga mapepala;
- m'makampani opanga mafuta;
- popanga zinthu zapakhomo, zida zoimbira, zoseweretsa.
Kuthetsa vuto lodyedwa nkhalango
Munthu sayenera kunyalanyaza vuto la kugwiritsidwa ntchito kwa nkhalango, popeza tsogolo la pulaneti lathu limadalira magwiridwe antchito azachilengedwe. Pochepetsa kudula mitengo, m'pofunika kuchepetsa kugwiritsa ntchito matabwa. Choyambirira, mutha kusonkhanitsa ndi kupereka mapepala owonongeka, kusinthana ndi zonyamula mapepala kupita kuzipangizo zamagetsi. Ochita bizinesi atha kupanga zochitika monga minda yam'nkhalango, momwe mitengo yamtengo wapatali idzalimidwe. Paboma, ndizotheka kuwonjezera chindapusa chodula mitengo mosaloledwa ndikuwonjezera mtengo wogulitsa kunja kwa matabwa. Kufunika kwa nkhuni kumachepa, kudula mitengo mwachangu kumawonekeranso.
