Izindawo ezivikelekile (ama-PAs) zibalulekile ekongiweni kwezinhlobonhlobo zezinto eziphilayo kodwa zisongelwa ukwanda kwezitshalo. Ucwaningo lwakamuva lubikezele ukuthi cishe izigidi ezingama-500 ha zezitshalo ezengeziwe zizodingeka ngo-2050 ukubhekana nesidingo sokudla emhlabeni wonke, okuzokwandisa ingcindezi ezindaweni zemvelo.
Ucwaningo lwangaphambilini lwathola ukuthi, emhlabeni jikelele, indawo yokutshala yangena ku-6% wama-PAs ngo-2013 futhi yanda kakhulu kuma-PAs omhlaba kunasezindaweni ezingavikelekile kusukela ngo-1990 kuya ku-2005. dynamics, ukusebenza kahle, kanye nezisusa zokunwetshwa kwezitshalo kuma-PA ezifundeni ezahlukene phakathi neminyaka engama-20 edlule akukacaci.
Manje, ithimba labacwaningi eliholwa uSolwazi Dong Jinwei ovela ku-Institute of Geographic Sciences and Natural Resources Research ye-Chinese Academy of Sciences (CAS) kanye nababambisene nabo badalule ukwanda okusheshayo kwezindawo zokutshala kuma-PA omhlaba eminyakeni engu-20 edlule, ngaleyo ndlela bavuna ukuqonda kangcono imisebenzi yabantu kuma-PA.
Lo msebenzi ushicilelwe ku Ukusimama Kwemvelo ngo-Mashi 23.
Abacwaningi basebenzise kakhulu izendlalelo zedatha yezitshalo ze-30-m zokuxazulula indawo ukuze babonise amandla ezitshalo ze-PAs eminyakeni engama-20 edlule esikalini somhlaba. Baphinde bahlola imithelela engaba khona yokwanda kwezitshalo ezinhlobonhlobo zezinto eziphilayo ngokwedlulele kokushintshashintsha kwezitshalo kanye nobungozi bokushabalala kwezinhlobo kuma-PA.
Imiphumela ikhombise ukuthi ukunwetshwa kwezitshalo kuma-PA kukhule kakhulu ukusuka ku-2000 kuya ku-2019 uma kuqhathaniswa nalokho kwezitshalo zomhlaba wonke. Ukwanda kwendawo kwaqashelwa kakhulu ezindaweni ezinkulu, ezingaqinile kangako, kanye nama-Afrotropical PAs—izifunda ezinengcuphe ephakeme yokushabalala kwezinhlobo zezilwane.
Ngokuphawulekayo, ukunwetshwa kwezitshalo kuphinde kwatholakala kwamanye ama-PA anezinga eliphezulu kakhulu ukulondolozwa amazinga. “Lesi sithombe esisha sokuguquguquka kwezitshalo e-PAs sibonisa ukuthi ukunwetshwa kwezitshalo kuyinselelo eqhubekayo yokulondolozwa kwemvelo emhlabeni wonke ezophazamisa izifiso ze-post-2020 global. izinto eziphilayo uhlaka,” kusho uProf. Dong.