Mapa mundial de la desertificacion a escala de 1:25 000 000
The explanatory note gives definitions and explains degrees of desertification hazard. Criteria are given for the different bioclimates, distinguished on the accompanying maps. Four classes of vulnerability to desertification are considered: areas of sand movement, areas subject to stripping by deflation and/or sheetwash, areas subject to accelerated gully erosion, and areas subject to progressive salinization/alkalinization. Population and animal densities have been used as a measure of human and animal pressure on the land
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Rome (Italy) FAO
1977
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| Subjects: | DESERTIFICATION, WORLD, SOIL FERTILITY, CLIMATIC ZONES, MONDE, FERTILITE DU SOL, ZONE CLIMATIQUE, MUNDO, FERTILIDAD DEL SUELO, ZONAS CLIMATICAS, DESERTIFICACION, |
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unfao:6702992021-05-05T06:52:20ZMapa mundial de la desertificacion a escala de 1:25 000 000 FAO, Rome (Italy) spa Conferencia de las Naciones Unidas sobre la Desertificacion spa 29 Aug - 9 Sep 1977 Nairobi (Kenya) UNESCO, Paris (France) spa OMM, Geneva (Switzerland) spa textRome (Italy) FAO1977 The explanatory note gives definitions and explains degrees of desertification hazard. Criteria are given for the different bioclimates, distinguished on the accompanying maps. Four classes of vulnerability to desertification are considered: areas of sand movement, areas subject to stripping by deflation and/or sheetwash, areas subject to accelerated gully erosion, and areas subject to progressive salinization/alkalinization. Population and animal densities have been used as a measure of human and animal pressure on the landcritical limits for arid zones were taken: 7 persons per sq. km and 1 bovine unit per 5 hafor semi-arid zones: 20 persons per sq. km and 1 bovine unit per 5 ha. A table summarizes the areas concerned by desertification hazards per continent.The explanatory note gives definitions and explains degrees of desertification hazard. Criteria are given for the different bioclimates, distinguished on the accompanying maps. Four classes of vulnerability to desertification are considered: areas of sand movement, areas subject to stripping by deflation and/or sheetwash, areas subject to accelerated gully erosion, and areas subject to progressive salinization/alkalinization. Population and animal densities have been used as a measure of human and animal pressure on the landcritical limits for arid zones were taken: 7 persons per sq. km and 1 bovine unit per 5 hafor semi-arid zones: 20 persons per sq. km and 1 bovine unit per 5 ha. A table summarizes the areas concerned by desertification hazards per continent.DESERTIFICATIONWORLDSOIL FERTILITYCLIMATIC ZONESMONDEFERTILITE DU SOLZONE CLIMATIQUEDESERTIFICATIONMUNDOFERTILIDAD DEL SUELOZONAS CLIMATICASDESERTIFICACION |
| institution |
FAO IT |
| collection |
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Italia |
| countrycode |
IT |
| component |
Bibliográfico |
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cat-fao-it |
| tag |
biblioteca |
| region |
Europa del Sur |
| libraryname |
David Lubin Memorial Library of FAO |
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| topic |
DESERTIFICATION WORLD SOIL FERTILITY CLIMATIC ZONES MONDE FERTILITE DU SOL ZONE CLIMATIQUE DESERTIFICATION MUNDO FERTILIDAD DEL SUELO ZONAS CLIMATICAS DESERTIFICACION DESERTIFICATION WORLD SOIL FERTILITY CLIMATIC ZONES MONDE FERTILITE DU SOL ZONE CLIMATIQUE DESERTIFICATION MUNDO FERTILIDAD DEL SUELO ZONAS CLIMATICAS DESERTIFICACION |
| spellingShingle |
DESERTIFICATION WORLD SOIL FERTILITY CLIMATIC ZONES MONDE FERTILITE DU SOL ZONE CLIMATIQUE DESERTIFICATION MUNDO FERTILIDAD DEL SUELO ZONAS CLIMATICAS DESERTIFICACION DESERTIFICATION WORLD SOIL FERTILITY CLIMATIC ZONES MONDE FERTILITE DU SOL ZONE CLIMATIQUE DESERTIFICATION MUNDO FERTILIDAD DEL SUELO ZONAS CLIMATICAS DESERTIFICACION FAO, Rome (Italy) spa Conferencia de las Naciones Unidas sobre la Desertificacion spa 29 Aug - 9 Sep 1977 Nairobi (Kenya) UNESCO, Paris (France) spa OMM, Geneva (Switzerland) spa Mapa mundial de la desertificacion a escala de 1:25 000 000 |
| description |
The explanatory note gives definitions and explains degrees of desertification hazard. Criteria are given for the different bioclimates, distinguished on the accompanying maps. Four classes of vulnerability to desertification are considered: areas of sand movement, areas subject to stripping by deflation and/or sheetwash, areas subject to accelerated gully erosion, and areas subject to progressive salinization/alkalinization. Population and animal densities have been used as a measure of human and animal pressure on the land |
| format |
Texto |
| topic_facet |
DESERTIFICATION WORLD SOIL FERTILITY CLIMATIC ZONES MONDE FERTILITE DU SOL ZONE CLIMATIQUE DESERTIFICATION MUNDO FERTILIDAD DEL SUELO ZONAS CLIMATICAS DESERTIFICACION |
| author |
FAO, Rome (Italy) spa Conferencia de las Naciones Unidas sobre la Desertificacion spa 29 Aug - 9 Sep 1977 Nairobi (Kenya) UNESCO, Paris (France) spa OMM, Geneva (Switzerland) spa |
| author_facet |
FAO, Rome (Italy) spa Conferencia de las Naciones Unidas sobre la Desertificacion spa 29 Aug - 9 Sep 1977 Nairobi (Kenya) UNESCO, Paris (France) spa OMM, Geneva (Switzerland) spa |
| author_sort |
FAO, Rome (Italy) spa |
| title |
Mapa mundial de la desertificacion a escala de 1:25 000 000 |
| title_short |
Mapa mundial de la desertificacion a escala de 1:25 000 000 |
| title_full |
Mapa mundial de la desertificacion a escala de 1:25 000 000 |
| title_fullStr |
Mapa mundial de la desertificacion a escala de 1:25 000 000 |
| title_full_unstemmed |
Mapa mundial de la desertificacion a escala de 1:25 000 000 |
| title_sort |
mapa mundial de la desertificacion a escala de 1:25 000 000 |
| publisher |
Rome (Italy) FAO |
| publishDate |
1977 |
| work_keys_str_mv |
AT faoromeitalyspa mapamundialdeladesertificacionaescalade125000000 AT conferenciadelasnacionesunidassobreladesertificacionspa29aug9sep1977nairobikenya mapamundialdeladesertificacionaescalade125000000 AT unescoparisfrancespa mapamundialdeladesertificacionaescalade125000000 AT ommgenevaswitzerlandspa mapamundialdeladesertificacionaescalade125000000 |
| _version_ |
1768065518518927360 |