ʻO nā kumuwaiwai ka waiwai waiwai nui loa o ko mākou honua, kahi mea pōʻino, ʻaʻole pale ʻia mai ka hana anthropogenic hana. ʻAʻole wale nā kumulāʻau e ulu i ka nahele, akā ʻo nā kumulāʻau, nā mea kanu, nā mea kanu lāʻau, nā lau, nā hua, nā laikini a me nā limu. Kaukaʻi ʻia i ka ʻāpana o ka honua, he mau ʻano like ʻole nā ululāʻau, ka mea mua loa, i nā ʻano ulu nahele.
- pāhiko;
- subtropical;
- deciduous;
- conifers;
- huikau.
A ʻo kahi hopena, hoʻokumu ʻia kahi ʻano o ka ululāʻau i kēlā me kēia wahi āpana. Aia i ka loli o ka lau, aia ka deciduous a me ka evergreen, a me nā ulu lāʻau. Ma ka laulaha, loaʻa nā ulu lāʻau i nā wahi āpau o ka honua, koe wale no ka Arctic a me ka Antarctic. Loaʻa nā ululāʻau liʻiliʻi ʻo Australia. Uhi ʻia nā wahi ākea me nā ululāʻau ma ʻAmelika a me ka moku ʻo Kongo, ma ka Hikina Hema ʻo Asia a me Kanada, ma Lūkia a me ʻAmelika Hema.
Ke ʻano o nā kaiaolaola ulu lāʻau
Loaʻa i nā ululāʻau nā ʻano like ʻole o nā flora a me nā holoholona. E ulu ma aneʻi nā Ferns, nā poho lima, nā ʻoka, nā olonā, nā ʻūlū, nā ʻipepa a me nā ʻelele ʻē aʻe. I nā ululāʻau subtropical, aia nā pine a me nā magnolias, nā pāma a me nā ʻoka, cryptomerias a me nā laurels.
Loaʻa i nā ululāʻau kāwili ʻia nā conifers a me nā lāʻau laulā. Hōʻike ʻia nā ulu lāʻau ʻo Coniferous e nā ʻano paina, larch, spruce a me fir. I kekahi manawa uhi ʻia kahi ākea e nā kumulāʻau o nā ʻano like, a i kekahi manawa ua hui ʻia ʻelua a ʻekolu paha mau laʻana, no ka laʻana, nā ulu lāʻau pine-spruce. ʻO nā lāʻau laulā nā lāʻau ʻoka a me nā maples, nā lindens a me nā aspens, nā ʻelemu a me nā beech, nā birch a me nā kumu lehu.
Noho nā lehulehu o nā manu i nā kalaunu o nā kumulāʻau. Loaʻa i nā ʻano like ʻole ko lākou home ma aneʻi, pili ia i ka wahi kai o kahi o ka nahele. Ma waena o nā kumulāʻau, ola nā mea ʻino ʻelua a me nā mea kanu a me nā koʻokoʻo, kolo nā moʻo, nā moʻo, nā mea kolo.
Ka mālama ʻana i nā kumuwaiwai nahele
ʻO ka pilikia o nā kumuwaiwai o kēia au ka mālama ʻana i nā ululāʻau o ka honua. ʻAʻole ia no ka mea ʻole i kapa ʻia nā ululaau ʻo nā akemāmā o ka honua, ʻoiai nā lāʻau e hoʻohua i ka oxygen ma ke omo ʻana i ka carbon dioxide. ʻAʻole no nā kaukani a me nā haneli mau makahiki o ke ola o ke kanaka, ua kupu mai ka pilikia o ka nalo ʻana o ka nahele, akā i ke kenekulia i hala. Ua kua ʻia he mau miliona heka o nā lāʻau, nā pohō nui. I kekahi mau ʻāina, mai 25% a i 60% o nā ululāʻau i luku ʻia, a ma kekahi mau wahi i ʻoi aku. Ma waho o ka ʻoki ʻana, hoʻoweliweli ʻia ka nahele e ka haumia o ka lepo, ka lewa a me ka wai. I kēia lā pono mākou e hoʻāʻo e mālama i ka nahele, a i ʻole ia e hoʻoliʻiliʻi ʻia e lilo i pōʻino kaiaola honua no ka honua holoʻokoʻa.
