Amasu Nezinqubo Zokubuyiselwa Komhlaba Ezimayini
Ukubuyiselwa komhlaba wezimayini uchungechunge lwemisebenzi ehleliwe yokubuyisela umhlaba ophazamiseke yimisebenzi yezimayini ukuqinisekisa ukuzinza, ukuphepha, kanye nomsebenzi wezemvelo kanye nowezomnotho. Ngokomongo wentuthuko esimeme, ukubuyiselwa komhlaba akuyona nje isibopho sokuphatha kodwa kuwumzamo oqondile wokunciphisa umonakalo wemvelo, ukuvimbela izinhlekelele ezifana nokudilika komhlaba kanye nezikhukhula, kanye nokubuyisela umkhiqizo womhlaba. Lesi sihloko sixoxa kabanzi ngamasu nezinqubo zokubuyiselwa komhlaba wezimayini, kusukela ekuhleleni nasekusetshenzisweni kuya ekuqapheni ngemva kokumba.
1. Izimiso Eziyisisekelo Zokubuyiselwa Komhlaba Ezimayini
Ukulungiswa kabusha okuhle kusekelwe ezimisweni ezilandelayo: (1) ukuphepha komhlaba kanye nokuqina, (2) ukulawulwa kokuguguleka komhlaba kanye nokungcola, (3) ukubuyiselwa kokuvunda komhlaba, (4) ukuphathwa kwekhwalithi yamanzi kanye nemvelo, kanye (5) ukunqunywa okungokoqobo kokusetshenziswa komhlaba kokugcina. Izinketho zokugcina zokusetshenziswa komhlaba zingafaka phakathi ukutshalwa kabusha kwamahlathi, umhlaba wezolimo, izindawo zokulondolozwa komhlaba, izindawo zokuhlala ezilinganiselwe, izindawo zokuvakasha, noma eminye imisebenzi ngokuhambisana nokuhlelwa kwendawo.
Esinye isimiso esibalulekile ukuvuselelwa okuqhubekayo, okuhlanganisa ukuvuselelwa njengoba imisebenzi yezimayini iqhubeka ezindaweni esezivele zimbiwe. Le ndlela inciphisa indawo yomhlaba oveziwe, yenza izindleko zokuvuselela zisebenze kahle, futhi inciphisa izingozi zemvelo kusenesikhathi.
2. Isigaba Sokuhlela Ukubuyiselwa Kwempahla
Ukuhlela ukubuyiselwa kwempahla kuyisisekelo sempumelelo. Lesi sigaba sivame ukufaka:
a. Uhlu Lwezimo Zokuqala
Imisebenzi ihlanganisa ukumaka i-topography, izinhlobo zenhlabathi, i-geology, i-hydrology, ukumbozwa kwezitshalo, kanye nezici zezenhlalo nezomnotho zomphakathi ozungezile. Lolu lwazi lusetshenziselwa ukuthola izinga lokuphazamiseka kanye namasu afanele okutakula.
b. Ukunquma Imigomo kanye Nezindlela Zokuphumelela
Izinhloso zokuvuselela kumele zilinganiswe, njengezinhloso zokuqina kwemithambeka, ukujiya kwenhlabathi engaphezulu, iphesenti lokumboza izitshalo, izinga lokusinda kwezitshalo, noma imingcele yekhwalithi yamanzi. Izindlela zokuphumelela zenza kube lula ukuhlola okuqondile ngesikhathi sesigaba sokuqapha.
c. Umklamo Wendawo
Umklamo uhlanganisa izinhlelo zokuphathwa kwemithambeka, ukuphakama kokugcina, izinhlelo zokukhipha amanzi, izindawo zamachibi odaka, kanye nokuvikelwa kwezindawo ezibucayi njengemifula nemithombo yamanzi. Ezimayini ezivulekile, umklamo uphinde ucabangele ukuthi izikhala (izikhala) zizogcwaliswa yini, ziguqulwe zibe amachibi, noma zishiywe nezivikelo ezithile.
d. Uhlelo Lokuphathwa Komhlaba Oluphezulu
Inhlabathi engaphezulu iyinto ebalulekile ngoba iqukethe izinto eziphilayo, ama-microorganisms, kanye nebhange lembewu. Ngesikhathi sokuhlela, izindlela zokususa, ukugcina, kanye nokusabalalisa kabusha inhlabathi engaphezulu ziyanqunywa ukuqinisekisa ukuthi ikhwalithi iyagcinwa.
3. Amasu Okubuyisela Umhlaba: Ukubumba Umhlaba
Ukuhlelwa komhlaba kuhlose ukudala umhlaba ozinzile futhi oseduze nemingcele yemvelo.
a. Ukugcwalisa kanye Nokulungisa Ibanga
Izinto ezilahliwe zemigodi (i-overburden noma i-waste rock) zisetshenziselwa ukugcwalisa izindawo zokumba noma ukudala imigoqo ephephile. Ukuhlelwa kabusha kwenziwa ukuze kuncishiswe i-gradient yemithambeka, kuthuthukiswe ama-contour, futhi kuncishiswe ingozi yokudilika komhlaba. Imithambeka ngokuvamile yakhiwa ngama-tiers (amabhentshi) ane-berms ukuze kugcinwe ukugeleza kwamanzi okungaphezulu.
b. Ukuzinza Nokuqiniswa Kwemithambeka
Ezindaweni ezisengozini, amasu e-geotechnical njengokucindezela, ukufakwa kwe-geotextile, ama-gabion, noma izindonga zokugcina izindonga angasetshenziswa. Ukukhetha indlela kuncike ezicini zamadwala, imvula, kanye nokwehla komthambeka ohleliwe.
c. Uhlelo Lokukhipha Amanzi kanye Nokulawulwa Kokuguguleka Kwenhlabathi
Amanzi ayimbangela eyinhloko yokuguguleka komhlabathi. Izinhlelo zokukhipha amanzi ebusweni njengemisele, amapayipi okudonsa amanzi, kanye nezakhiwo zamaconsi amanzi zenzelwe ukulawula ukugeleza kwamanzi. Ukuze kuncishiswe ukuguguleka komhlabathi, kusetshenziswe ukuhlanganisa izitshalo, ukumboza izitshalo, inethi yokulawula ukuguguleka komhlabathi, kanye nokufaka amasimu omhlaba.
4. Ukuphathwa Kwenhlabathi: Inhlabathi Engaphezulu Nokulungiswa
a. Ukuhlubula Nokugcina Inhlabathi Engaphezulu
Inhlabathi engaphezulu iyasuswa ngaphambi kokumba bese igcinwa ezinqolobaneni ezinobude obulinganiselwe ukuvimbela ukuminyana nokukhula okungenawo umoya. Izinqwaba zezinqwaba kufanele zivikelwe ekugugulekeni ngesembozo sezitshalo ezikhula ngokushesha noma i-mulch.
b. Ukuvuselela kanye Nokuthuthukisa Ukuzala
Ngemva kokulungiswa komhlabathi, inhlabathi engaphezulu iphinda isakazeke ibe ugqinsi olufanele izidingo zesitshalo. Ngenxa yokuthi inhlabathi engakavubukuli ivame ukuba nezakhamzimba ezingembi, ukulungiswa kwenziwa kusetshenziswa umquba, umquba, i-biochar, i-lime (yenhlabathi ene-asidi), noma umanyolo we-NPK. Ukugoma ngama-microbes afana ne-mycorrhizae kungasiza ekuthuthukiseni ukumuncwa kwezakhamzimba kanye nokuqina kwezitshalo.
c. Ukulungiswa Komhlaba Ongcolile
Uma kukhona ukungcoliswa kwensimbi esindayo noma amathuba okukhipha amanzi emayini ye-acid (i-AMD), kudingeka izinyathelo ezikhethekile njengokufaka izinto ze-alkaline (i-lime), ukufaka izinto ze-sulfide, ukwakha izinhlelo zamanzi, noma ukwelapha amanzi ngaphambi kokuwakhipha endaweni ezungezile.
5. Ukuvuselela Izitshalo: Ukuvuselelwa Kwezitshalo Nokuvuselelwa Kwesistimu Yezinto Eziphilayo
Ukutshala kabusha kuyisigaba esibonakala kakhulu ekuvuselelweni kabusha, kodwa impumelelo yaso incike kakhulu ekuhleleni nasekuphathweni kokusetshenziswa komhlaba kwangaphambilini.
a. Ukukhethwa Kwezinhlobo Zezitshalo
Ukukhethwa kwezitshalo kucabangela injongo yokugcina yomhlaba, izimo zezulu, kanye nohlobo lomhlabathi. Inhlanganisela yalokhu okulandelayo ivame ukusetshenziswa:
– Izitshalo ezimboza imifino ukuze kuncishiswe ukuguguleka komhlabathi futhi kufakwe i-nitrogen.
– Amaphayona akhula ngokushesha ukuze kusheshiswe ukwakheka kwekhanophi.
– Izinhlobo zendawo zokubuyisela ukuhlukahluka kwezinto eziphilayo kanye nokusimama kwemvelo.
b. Indlela Yokutshala
Ukutshala kungenziwa ngokuhlwanyela ngqo, ukuhlwanyela imbewu, noma ukuhlwanyela ngamanzi (ingxube efuthwe ngembewu, amanzi, umanyolo, kanye ne-glue). Ezindaweni ezithe qelele, izikhala ezifanele, amaphethini okwakheka, kanye namasu okuhlanganisa i-mulch kubalulekile ukuvimbela ukukhukhuleka kwezithombo.
c. Ukugcinwa
Ukunakekela kuhlanganisa ukunisela kokuqala, umanyolo olandelayo, ukulawula ukhula, ukulawula izinambuzane, kanye nokutshala kabusha izitshalo ezifile. Le misebenzi ivame ukwenziwa ezinkathini eziningana zokukhula kuze kube yilapho ukumbozwa kwezitshalo kuzinzile.
6. Ukuvuselelwa Kwengqalasizinda Yezimayini
Ngaphezu komhlaba ohlanziwe, ukulungiswa kabusha kuhlanganisa ukubhidlizwa noma ukusetshenziswa kabusha kwengqalasizinda efana nemigwaqo yezimayini, ama-workshop, izindawo zokugcina izimpahla, nezinye izikhungo. Ezinye izindawo zingagcinwa ukuze zisetshenziswe ngemva kokumba (njengemigwaqo yokufinyelela kwezolimo noma ezokuvakasha), kodwa kumele kuqinisekiswe ukuthi ziphephile, zinobungani nemvelo, futhi zihambisane nezidingo zokuhlela indawo.
7. Izinqubo Zokusebenzisa Ukubuyiselwa Kwezinto: Kusukela Ngaphambi Kokumba Kuya Ngemva Kokumba
Ngokwenqubo, ukulungiswa kabusha ngokuvamile kulandela ukugeleza okulandelayo:
1. Ukulungiswa kwezinhlelo zokuvuselela kanye nokuvunyelwa ngokuhambisana nemithethonqubo esebenzayo.
2. Ukuvuselelwa okuqhubekayo ezindaweni ezingasasebenzi ezimayini.
3. Ukuphathwa komhlaba (ukugcwalisa kabusha, ukuhlela kabusha, ukuzinzisa).
4. Ukufakwa kwemisele yamanzi kanye nokulawulwa kokuguguleka kwamanzi.
5. Ukusabalala kwenhlabathi ephezulu kanye nokulungiswa kwayo.
6. Ukuvuselela izitshalo ngokwedizayini.
7. Ukugcinwa nokuphepha kwendawo (izicingo, izimpawu, ukuvala indlela eyingozi).
8. Ukuqapha nokuhlola kuze kube yilapho kuhlangatshezwana nezindinganiso zempumelelo.
9. Ukudluliselwa/ngemuva kokumba lapho indawo imenyezelwe ukuthi izinzile futhi isebenza kahle.
8. Ukuqapha Nokuhlola Impumelelo
Ukuqapha kwenziwa ukuqinisekisa ukuthi ukubuyiselwa kwesakhiwo kuyasebenza ngempela. Imingcele evamile ehlolwayo ifaka:
– Ukuzinza kwethambeka (imifantu, ukudilika komhlaba, ukucwila komhlaba).
– Amazinga okuguguleka komhlabathi kanye nokwanda kwenhlabathi.
– Ikhwalithi yamanzi (i-pH, i-TSS, izinsimbi ezincibilikisiwe).
– Impumelelo yokuvuselela izitshalo (iphesenti lokusinda, ukukhula, isembozo sophahla).
– Izimo zenhlabathi (i-pH, izinto eziphilayo, izakhamzimba).
– Imithelela yezenhlalo (ukufinyelela umhlaba, izinzuzo zomnotho, ukwamukelwa komphakathi).
Uma kutholakala ukungafani, kuthathwa izinyathelo zokulungisa njengokuthuthukisa amanzi, ukuqinisa imithambeka, ukufaka izinto ezithuthukisa inhlabathi, noma ukutshala kabusha.
9. Izinselele kanye namasu okuzinza
Ukubuyiselwa komhlaba wezimayini kubhekene nezinselele ezifana nomhlabathi ongenazo izakhamzimba eziningi, imvula enkulu ebangela ukuguguleka komhlaba, amathuba okukhishwa kwamanzi ezimayini ezine-asidi, kanye nezingxabano zokusetshenziswa komhlaba ngemva kokumba. Amasu okuthuthukisa ukusimama afaka phakathi ukusetshenziswa kwezinhlobo zendawo, ukusetshenziswa kobuchwepheshe bokulawula ukukhishwa kwamanzi ane-asidi, ukusetshenziswa okukhulu kwezinto eziphilayo, kanye nokubandakanyeka komphakathi ekunqumeni ukusetshenziswa komhlaba kokugcina. Ngokubambisana phakathi kwezinkampani, uhulumeni, izifundiswa, kanye nemiphakathi, ukubuyiselwa komhlaba kungaba yithuba lokudala izindawo ezintsha nezikhiqizayo.
I-Penutup
Amasu nezinqubo zokuvuselela umhlaba wezimayini zidinga indlela ehlukahlukene ehlanganisa ubunjiniyela bomhlaba, ukuphathwa komhlabathi, ukulawulwa kwamanzi, kanye nokubuyiselwa kwezitshalo. Impumelelo yokuvuselela umhlabathi ayilinganiswa nje kuphela ngokuluhlaza kwawo, kodwa futhi nangokuzinza kwawo kwesikhathi eside, ikhwalithi yemvelo, kanye nezinzuzo emphakathini ozungezile. Ngokuhlela ngokucophelela, ukuqaliswa okuhlelekile, kanye nokuqapha okuqhubekayo, umhlaba wangemva kokumba ungabuyiselwa endaweni ephephile, esebenzayo esekela ukusimama kwemvelo.
