A cikin Sifen fari fari lamari ne mai maimaita yanayin halitta har ma fiye da haka a duk mahallan Bahar Rum. Yawan mita da kuma ƙarfi iri ɗaya an sami karuwar sakamakon sauyin yanayi kuma, kodayake ayyukan tattalin arziki da tsarin halitta sun dace da wannan yanayin na yanayin, ba za su iya yin hakan a cikin wannan yanayin ba, wanda ke shafar ɗorewa.
Wannan yanayin fari da karuwar yanayin zafi sun haifar da mafi tsananin zafi da rani a cikin ƙarni uku da suka gabata a cikin shekarun da suka gabata. Wane tasiri wannan yanayin yake da shi?
Heatarin zafi, ƙasa da ruwa
Shekaru biyu, membobin ƙungiyar bincike Sauyin Yanayi, Ruwa, Canjin Duniya da Tsarin Halitta na Sashen Nazarin Kasa da Tsarin Sarari sun sake sake fasalin yanayin da ya gabata daga radial girma daga tsoffin bishiyoyi a Spain. Da wannan binciken suke son sanin yadda yanayin ya kasance a karnin da suka gabata kuma zasu iya kimanta tsanani da ci gaban tasirin canjin yanayi.
Dole ne mu tuna cewa sauye-sauyen yanayi da yawa sun faru a tsawon tarihi, amma ba su yi sauri kamar wanda yake faruwa a yau ba. Don ƙarin matsakaita yanayin zafi kwatankwacin abin da ke yau, miliyoyin shekaru sun shude. Koyaya, canjin yanayi na yanzu yana faruwa akan ƙimar ɗan adam, ma'ana, a cikin justan ƙarni kaɗan.
Ana iya samun wannan bayanin ta hanyar binciken ƙarancin bishiyoyi irin su pines. Littafin Labarun Nazarin Lafiya na yau ya tattara nazarin samfurori daga bishiyoyi 774 na nau'in Pinus sylvestris da Pinus uncinata wanda ke cikin tsaunin tsauni na Iberiya, tunda tsawon bayanan kayan aiki (bayanan da aka auna a tashoshin meteorological) ya kai shekaru 100 mafi kyau, wani lokacin da bai isa ba don kimanta yiwuwar keɓancewar yanayin yanzu.
Nazarin girman bishiyoyi
Godiya ga bayanan da aka tattara daga ma'aunin haɓakar bishiyoyi, yana yiwuwa a san yadda yanayin ya samo asali. Lokacin da kowace bishiya take haifar da itacen ƙarshen itace, ma'ana, mafi duhu wanda aka samar dashi a matakan ƙarshe na ci gaban shekara, yana yiwuwa sake gina illar fari a lokacin bazara tun shekarun farko na karni na XNUMX.
An fara aiki tare da lokacin bazara na ƙarni na XNUMX tun lokacin da aka fara juyin juya halin masana'antu inda aka fara fitar da iska mai dumama yanayi ta hanyar juyin juya halin masana'antu.
Wannan shine karo na farko da masana kimiyya suka iya sake fasalin yanayin karnonin da suka gabata ta wannan hanyar. Ana kiran dabara Daidaitaccen Evaporation da Translue Index (SPEI), wanda aka ambata a cikin wannan shari'ar zuwa watannin Yuli da Agusta. Yanayin bazara sun daɗa bushe har sai, a yau, sune waɗanda suka kafa tarihin tarihi.
Wani abu da ake la'akari dashi a cikin waɗannan ma'aunin kuma hakan yana da mahimmanci don faɗakar da sakamako da ƙarshe shine cewa wannan jadawalin da aka yi amfani da shi a cikin ma'aunin yana la'akari da ƙarin damuwar da tsarin halitta ke fuskanta yayin faruwar yiwuwar ɓarkewar ruwan sama, a cikin wani yanayi inda, saboda ɗumamar yanayi, yanayin zafi na shekara shekara yana ƙaruwa.
Sakamakon da sauran marubutan daga Turai da Arewacin Afirka suka nuna, waɗanda ke nuni da keɓancewa cewa tsananin fari da ya faru a ƙarshen karni na XNUMX da waɗanda ke faruwa yanzu a ƙarshe shekaru.
Canje-canje a cikin yanayin yanayi saboda canjin yanayi yana aiki a sikeli mai girma kuma suna iyawa canza matsayi da naci na Anticyclone a cikin Azores hakan baya barin guguwar ta shiga kasar sipaniya kuma, saboda haka, ruwan sama. Bugu da ƙari kuma, wannan mafi girman faruwar abubuwan bushewa ya dace da sakamakon sabon rahoto na Panelungiyar Gwamnati game da canjin yanayi.