A cikin sashin sararin samaniya, gandun daji daban-daban suna girma, waɗanda suke gama gari a kudanci da arewacin duniyar duniyar. Ofaya daga cikin nau'ikan shine gandun daji-busassun busassun-rani. Wannan yanki na halitta yana da bushewar yanayi, saboda ana ruwan sama a lokacin hunturu, kuma adadinsu ya banbanta daga 500 zuwa 1000 millimeters a shekara. Lokacin bazara a nan ya bushe da zafi, kuma a lokacin hunturu kusan babu sanyi. Don gandun dajin da ke da wuya, siffofi masu zuwa halaye ne:
- tushen gandun daji bishiyoyi ne masu yalwata da shrubs;
- alfarwa ta ƙunshi bene ɗaya;
- bishiyoyi suna yin rawanin faɗi;
- da yawa bishiyoyi masu girma a cikin ƙwarya;
- bishiyoyin da ke cikin wadannan dazuzzuka suna da kuzari mai ƙarfi, kuma rassansu suna farawa kusa da matakin ƙasa.
Flora na bishiyun dazuzzuka masu wahala
Bazarar rani mai rani mai bishiyoyi masu kauri ya zama gama gari a sassa daban-daban na duniya. A cikin Turai, ana samun su a yankin Bahar Rum, kuma a nan itacen oak da pine nau'ikan kera daji ne. A gabar Tekun Atlantika, flora ta zama ta bambanta, yayin da manyan bishiyoyi suka bayyana a nan - abin toshewa, walloon, da marmot Tiasa mafi ƙanƙanta a cikin irin wannan gandun daji bishiyoyin bishiyoyi ne da myrtle, bishiyoyin strawberry da zaitun, katako da manyan laurel, janareto, da sauran nau'ikan bishiyoyi da bishiyoyi.
Duk tsire-tsire a cikin irin wannan gandun daji suna da gyare-gyare na musamman don tsayayya da zafi. Ganyen wasu bishiyoyi na iya samun ruɓaɓɓen fata, wasu kuma suna da ƙafafu da ƙugu, wasu kuma suna da baƙi mai kauri sosai. Akwai ƙarancin ƙarancin ruwa a cikin gandun dajin da ba shi da yawa fiye da sauran halittun daji, watakila saboda gaskiyar cewa gabobin waɗannan bishiyoyi suna ɗauke da ɗimbin mahimman mai.
Idan ƙarin danshi ya bayyana a wasu wurare, to maquis, kaurin bishiyun bishiyun, zai iya girma anan. Sun ƙunshi, ban da nau'in kiɗan da aka ambata a sama, heather da gorse, Rosemary da cistus. Daga cikin lianas, bishiyar asparagus tana tsiro. Thyme da lavender, da sauran tsire-tsire masu tsire-tsire suna girma a cikin ciyawar ciyawa. Legumes na takin zamani, shuke-shuken shuke shuke da tsire-tsire masu tsiro suna girma a cikin dazukan Arewacin Amurka.
Fitarwa
Don haka, dazuzzuka masu ƙarancin ƙarfi suna mamaye wani yanki a cikin sashin sararin samaniya. Tsarin halittu na wannan nau'ikan gandun daji ya ɗan bambanta, wanda ya samo asali ne saboda yanayin yanayi wanda flora ke da nasa abubuwan da zasu dace da shi, wanda zai basu damar rayuwa da ƙarancin danshi a yanayin zafi.
