Ilasa tana ɗaya daga cikin mahimman abubuwan da ke duniyarmu. Rarraba kwayoyin halittu, da girbi, wadanda suke da matukar muhimmanci ga mutane, ya dogara da inganci da yanayin kasar. Akwai kasar gona da yawa, wadanda daga cikinsu akwai wadanda suka fi fice a jiki. Kuna iya saduwa da irin wannan ƙasa a cikin gandun daji mai ruwan kasa. Ofasa na wannan nau'in an kafa su ne a rarrabe kuma galibi ana iya samunsu a wuraren da ke dauke da sinadarin calcium carbonate, wato, kusa da yankunan da duwatsu daban-daban suke (alal misali, farar ƙasa, marmara, dolomites, marls, lãka, da sauransu).
Halaye, alamu da abubuwan da ke cikin ƙasa
A matsayinka na mai mulki, ana iya samun ƙasa mai laushi a kan gangare, yanki mai laushi, shimfida ƙasa da ƙasa. Soilasa na iya zama ƙarƙashin gandun daji, makiyaya da shure iri na flora.
Wani fasali na ƙasa mai laushi shine babban abun cikin humus (har zuwa 10% ko fiye). Soilasar na iya ƙunsar abubuwa kamar su acid na humic. A mafi yawan lokuta, yayin nazarin irin wannan ƙasa, sammannin sama suna ba da amsa na tsaka tsaki, ƙananan - alkaline; da wuya sosai acidic. Matsayin rashin cin nasara yana tasiri ta zurfin abin da ya faru na carbonates. Don haka, a manyan matakai, mai nuna alama ya fito daga 5 zuwa 10%, a ƙananan matakan - har zuwa 40%.
Dyasashen Soddy-calcareous sun fi dacewa. Duk da cewa suna samarwa a ƙarƙashin ciyawar daji, da yawa daga cikin hanyoyin waɗanda ke halayyar irin wannan ƙasa sun raunana ko basa nan. Misali, a cikin soddy-calcareous ƙasa, babu alamun leaching ko podzolization. Wannan shi ne saboda gaskiyar cewa ragowar tsire-tsire, shiga cikin ƙasa, bazu a cikin yanayi tare da babban abun ciki na alli. A sakamakon haka, akwai ƙaruwar adadin humic acid da samuwar mahaɗan ƙwayoyin cuta marasa aiki, sakamakon haka an samar da sararin samaniya mai tarin humus.
Bayanin siffar ƙasa
Dyasar Soddy-calcareous ta ƙunshi tsinkaye masu zuwa:
- A0 - kaurin daga 6 zuwa 8 cm; raunin raunin tsire-tsire mai rauni a cikin gandun daji;
- A1 - kauri daga 5 zuwa 30 cm; humus-tarawar sararin samaniya-launin toka-toka ko launin toka mai duhu, tare da tushen shuke-shuke;
- B - kauri daga 10 zuwa 50 cm; lumpy launin ruwan kasa-launin toka;
- Сca dutse ne mai danshi, mara nauyi.
A hankali, wannan nau'in ƙasa yana canzawa kuma ya juye zuwa nau'in ƙasa na podzolic.
Nau'ukan soddy-calcareous
Irin wannan ƙasa ita ce manufa ga gonakin inabi da gonakin inabi. An tabbatar da cewa ƙasa ce mai laushi-carbonate wacce ke da yawan haihuwa. Amma kafin dasa shuki, ya kamata ku shiga cikin aikin kuma zaɓi mafi dacewar ƙasar. Akwai nau'ikan ƙasa masu zuwa:
- na al'ada - yaɗu a yankuna-gandun daji mai ruwan kasa. Mafi yawan lokuta ana iya samun sa a cikin manyan bishiyoyi, itacen oak, gandun daji na beech-oak kusa da yanayin raunin yanayi, siririyar ƙaramar duwatsu masu kulawa. Jimlar bayanan martabar kusan 20-40 cm kuma ya ƙunshi dutsin dutse da gutsutsuren dutse. Soilasa ta ƙunshi humus na tsari na 10-25%;
- leached - shimfidawa a cikin gutsutsure a cikin yankunan ruwan kasa mai kasa-kasa. Ana samun sa a cikin dazuzzuka masu yankewa, akan yanayin yanayi da kuma kauri mai ƙarfi na eluvium. Abun cikin humus kusan 10-18% ne. Kaurin ya banbanta daga 40 zuwa 70 cm.
Dyasashen Soddy-calcareous sun dace da shuke-shuke, shukokin da ke da girma da kuma nau'ikan da ke da fa'ida.
