ʻO Volga ka muliwai nui loa ma Rūsia a me ʻEulopa, a me nā mea lawelawe, nā ʻōnaehana muliwai o ka ipu Volga. ʻO ka lōʻihi o ka muliwai ma luna o 3.5 tausani mau kilomita. Loiloi ka poʻe loea i ke ʻano o ka waihona wai a me kona kahe ma ke ʻano he lepo loa a lepo loa. Loaʻa kēia i ka ʻoiaʻiʻo ma kahi o 45% o nā ʻoihana a me 50% o nā ʻoihana mahiʻai ma Rūsia e waiho nei i loko o ka ipu Volga, a 65 o 100 mau kūlanakauhale maʻemaʻe loa o ka ʻāina aia ma nā kapa. A ʻo kahi hopena, komo ka nui nui o ka wai wai neoneo i ka Volga, a aia ka waihona i 8 mau manawa ke kiʻekiʻe ma mua o ka maʻamau. ʻAʻole hiki i kēia ke hoʻololi i ke kaolaola o ka muliwai.
Nā pilikia Reservoir
Hoʻopiha hou ʻia ka ipu Volga me ka lepo, ka hau a me ka wai ua. Ke kūkulu ʻia nā poho wai ma ka muliwai, nā waihona wai a me nā mea kanu wai uila, e loli ke ʻano o ke kahe o ka wai. Eia kekahi, ua hoʻēmi ka hoʻomaʻemaʻe ponoʻī o ka waihona wai i 10 mau manawa, ua loli ke ʻano hoʻomehana, ma muli o ka piʻi ʻana o ka manawa o ka hau i nā ʻāpana kiʻekiʻe o ka muliwai, a i ka haʻahaʻa i emi ai. Ua loli pū ʻia ka hui kemika o ka wai, ʻoiai ua ʻike ʻia nā minela he nui i ka Volga, he weliweli a ʻona ka hapa nui o lākou, a luku i ka flora a me nā holoholona o ka muliwai. Inā i ka hoʻomaka o ke kenekulia iwakālua ua kūpono ka wai i loko o ka muliwai no ka inu ʻana, ʻānō ʻaʻole inu ia, ʻoiai ka wahi o ka wai i kahi kūlana hoʻomaʻemaʻe ʻole.
Pilikia ulu limu
I ka Volga, hoʻonui ka nui o nā limu i kēlā me kēia makahiki. Ulu lākou ma kahakai. Aia ka makaʻu o kā lākou ulu ʻana i ka ʻoiaʻiʻo e hoʻokuʻu lākou i nā meaola weliweli, a ʻo kekahi o lākou he mea ʻawahia. ʻAʻole maopopo ka hapa nui o lākou i ka ʻepekema hou, a no laila paʻakikī e wānana i nā hopena o ka hopena o ka limu i ke kaiaola o ka muliwai. ʻO nā mea kanu i make i hāʻule i lalo o ka wahi o ka wai, ma muli o kā lākou decomposition i loko o ka wai, piʻi ka nui o ka nitrogen a me ka phosphorus, e alakaʻi ai i ka haumia lua o ka ʻōnaehana muliwai.
Ka hoʻohaumia aila
ʻO kahi pilikia nui no ka Volga a me kona kahe o ka holo ʻana o ka ʻino, ka aila a me ka aila. ʻO kahi laʻana, i ka makahiki 2008 ma ka moku ʻo Astrakhan. ua hele a wili kahi aila nui i loko o ka muliwai. I ka makahiki 2009, ua kū mai kahi ulia tanker, a ma kahi o 2 tone o ka aila wahie i komo i loko o ka wai. Nui ka ʻino o ka wahi o ka wai.
ʻAʻole kēia kahi papa inoa piha o nā pilikia kaiaola o Volga. ʻO ka hopena o nā haumia like ʻole ʻaʻole wale ka ʻoiaʻiʻo ʻaʻole kūpono ka wai e inu ai, akā ma muli o kēia, make nā mea kanu a me nā holoholona, make ka iʻa, kahe ka muliwai a me ke aupuni, a i ka wā e hiki mai ana e make paha ka wahi wai holoʻokoʻa.
