Thaum pib ntawm 2014, raws li kws txawj, pejxeem yog kwv yees li 7.2 billion tus neeg. Tib lub sijhawm, tib neeg tsis tshua muaj kev sib txig sib luag nyob ib puag ncig lub ntiaj teb.
Feem ntau ntawm cov av qes, kwv yees li 90%, nyob rau qaum teb hemisphere. Tsis tas li, 80% ntawm cov pejxeem yog tsom rau sab hnub tuaj, piv rau 20% nyob rau sab hnub poob, thaum 60% ntawm cov neeg yog cov neeg nyob hauv tebchaws Asia (thaj tsam - 109 neeg / km2). Kwv yees li 70% ntawm cov pej xeem yog tsom rau 7% ntawm cov ntiaj chaw ib ncig. Thiab 10-15% ntawm thaj av yog thaj av uas tsis muaj neeg nyob tag nrho - cov no yog cov av ntawm Antarctica, Greenland, thiab lwm yam.
Cov pejxeem ntom ntom los ntawm lub teb chaws
Muaj ntau lub teb chaws nyob hauv lub ntiaj teb nrog ob tus nqi qis thiab siab ntawm cov neeg pejxeem. Thawj pawg muaj xws li, piv txwv li, Australia, Greenland, Guiana, Namibia, Libya, Mongolia, Mauritania. Cov pejxeem ntwm nyob hauv lawv tsis pub dhau ob tus neeg hauv ib lub voos xwmfab.
Cov teb chaws uas muaj neeg nyob ntau tshaj plaws yog nyob hauv Asia - Suav, Is Nrias teb, Nyiv, Bangladesh, Taiwan, Republic of Kauslim thiab lwm yam. Qhov nruab nrab ntawm qhov nruab nrab hauv Europe yog 87 tus neeg / km2, hauv Asmeskas - 64 tus neeg / km2, hauv Africa, Australia thiab Oceania - 28 tus neeg / km2 thiab 2.05 tus neeg / km2, raws.
Lub xeev uas muaj thaj tsam me me yog feem ntau muaj ntau yam nyob tuab heev. Cov no yog, piv txwv li, Monaco, Singapore, Malta, Bahrain, Republic of Maldives.
Ntawm cov nroog uas muaj neeg nyob coob tshaj yog cov neeg Iyiv Cairo (36,143 neeg / km2), Suav Shanghai (2,683 tus neeg / km2 hauv xyoo 2009), Pakistani Karachi (5,139 tus neeg / km2), Turkish Istanbul (6,521 tus neeg / km2)./km2), Nyiv Tokyo Tokyo (5,740 tus neeg / km2), Indian Mumbai thiab Delhi, Argentine Buenos Aires, Mexico City, lub peev ntawm Lavxias Moscow (10,500 tus neeg / km2), thiab lwm yam.
Vim li cas rau kev sib hais tsis sib haum
Cov tib neeg tsis sib luag ntawm lub ntiaj teb yog txuam nrog ntau yam. Ua ntej tshaj plaws, cov no yog ntuj thiab huab cua. Ib nrab ntawm cov av nyob hauv qhov chaw qis qis, uas ua rau tsawg dua li ib feem peb ntawm thaj av, thiab ib feem peb ntawm cov neeg nyob hauv hiav txwv nyob deb tsis tshaj 50 mais (12% ntawm thaj av).
Kev lig kev cai, aav nrog thaj chaw tsis zoo thiab muaj huab cua loj (roob siab, toj siab, tiaj suab puam, chaw huab cua sov) yog cov neeg tsis muaj sia.
Lwm qhov laj thawj yog tus nqi ntawm kev loj hlob ntawm cov neeg nyob vim kev yug ntawm cov teb chaws sib txawv, hauv qee lub xeev nws tau nce siab heev, thiab lwm qhov nws tsis tshua muaj nqi.
Thiab lwm qhov tseem ceeb yog qhov kev hloov ntawm kev noj haus thiab theem ntawm kev tsim khoom hauv ib lub tebchaws tshwj xeeb. Rau tib qho laj thawj, ntom ntab sib txawv nws sib txawv hauv cov tebchaws lawv tus kheej - hauv nroog thiab hauv nroog nyob deb nroog. Raws li txoj cai, cov pej xeem ntom ntom ntom hauv cov nroog tau siab dua hauv nroog, thiab qhov ntau tshaj - nyob hauv nroog.
