A cikin yanayin mahalli yayin wanzuwar wayewa, tsarin halittar mutum yana tashi koyaushe wanda yake hulɗa da yanayi:
- dadaddun shafuka;
- ƙauyuka;
- kauyuka;
- birane;
- ƙasar noma;
- yankunan masana'antu;
- harkokin sufuri, da dai sauransu.
Duk waɗannan abubuwa an ƙirƙira su a kan ƙananan filaye da kan yankuna masu yawa, suna mamaye babban yanki na shimfidar wurare, sabili da haka, waɗannan tsarin suna kawo manyan canje-canje ga yanayin. Idan a zamanin da da kuma zamanin da wannan tasirin akan yanayi bashi da muhimmanci, mutane suna zaman lafiya tare tare da tsarin halittu, to a tsakiyar zamanai, lokacin Renaissance da kuma a yanzu, wannan tsangwama ya zama abin lura kuma mafi munin.
Musamman na birni
Tsarin halitta-anthropogenic ana rarrabe shi da duality, tunda suna nuna fasali na halitta da na ɗan adam. A wannan lokaci a lokaci, dukkan tsarin suna da hannu cikin aiwatar da ƙauyukan birni. Wannan lamarin ya fara ne a ƙarshen karni na sha tara. Sakamakonsa kamar haka:
- iyakokin ƙauyuka za su canza;
- a cikin garuruwa akwai yanki mai wuce gona da iri;
- gurbatar yanayi yana karuwa;
- yanayin yanayi yana canzawa;
- yankin shimfidar wuraren da ba a taba ba yana taƙaitawa;
- albarkatun kasa suna ta raguwa.
Yanayin mafi munin yanayin ilimin muhalli yana cikin irin wannan tsarin na ɗabi'a da tsarin ɗan adam kamar megacities. Waɗannan su ne biranen London da New York, Tokyo da Mexico City, Beijing da Bombay, Buenos Aires da Paris, Alkahira da Moscow, Delhi da Shanghai. Jerin ya ci gaba, ba shakka. Kowane ɗayan waɗannan biranen yana da tarin matsalolin muhalli. Waɗannan sun haɗa da gurɓatar iska, gurɓataccen amo, rashin kyakkyawan yanayin ruwa, tasirin greenhouse, da ruwan sama mai ƙumi. Duk wannan mummunan tasiri ba kawai yanayin lafiyar ɗan adam ba, har ma yana haifar da canje-canje a cikin mahalli, raguwa a yankunan yankuna na halitta, lalata yankunan fure da raguwar yawan dabbobi.
Bugu da kari, tsarin halitta da na halittar dan adam suna da tasiri a kan yanayin kimiyyar halittar yankuna da ke kusa. Misali, a yankunan da itacen shine babban mai, duk hekta dazuzzuka sun lalace. Tare da taimakon bishiyoyi, mutane ba wai kawai suna gina gidaje ba, har ma suna zafafa gidajensu, suna shirya abinci. Irin wannan abin yana faruwa a yankunan da wutar lantarki mara tsayayye da iskar gas.
Don haka, tsarin halittar dan adam da tsarin halittar dan adam, kamar mazaunin dan adam, suna da matukar tasiri ga yanayin mahalli. Godiya garesu, yanayin yanayin halittu ya canza, duk bawon duniyan ya gurbace kuma an cinye fa'idodin Duniya na ƙasa.
