{"id":992,"date":"2017-01-19T11:29:44","date_gmt":"2017-01-19T14:29:44","guid":{"rendered":"http:\/\/www.semiaridos.org\/?page_id=992\/"},"modified":"2017-02-19T18:04:52","modified_gmt":"2017-02-19T21:04:52","slug":"semiarid-regions","status":"publish","type":"page","link":"https:\/\/www.semiaridos.org\/en\/semiarid-regions\/","title":{"rendered":"Semiarid regions"},"content":{"rendered":"

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Semiarid regions<\/span><\/h1>\n

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In general, semi-arid regions are those where rainfall is not enough to cover the growth needs of the vegetation all year round. That is, aridity index (rainfall\/potential evapotranspiration) is below 0.5 per cent.<\/h5><\/blockquote>[\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row css_animation=”element_from_top” row_type=”row” use_row_as_full_screen_section=”no” type=”grid” anchor=”chaco-trinacional” angled_section=”no” text_align=”left” background_image_as_pattern=”without_pattern” padding_top=”40″ transition_delay=”0″ css=”.vc_custom_1468190674564{margin-top: 0px !important;margin-bottom: 0px !important;padding-bottom: 0px !important;background-color: #dd9933 !important;}”][vc_column][vc_column_text]<\/p>\n

Tri-national Chaco<\/span><\/h3>\n

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[vc_column_text]American Gran Chaco or Tri-national Chaco,<\/strong> is a 1,000,000 sq. km. region located in the center of South America. Argentina, Bolivia and Paraguay share this ecosystem, which is considered one of the regions with the greatest environmental and biological diversity on Earth, and the largest forest area of the continent after Amazonia.<\/p>\n

Due to its climate, this ecosystem is divided into three sub-areas: Sub-humid Chaco, Semi-arid Chaco, and Arid Chaco.<\/p>\n

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[vc_column_text]Semi-arid Chaco<\/strong>, with rainfall of between 750 and 500 millimeters per year, comprising Bolivia, the west of Paraguay, and Argentina (the west of the provinces of Formosa and Chaco; the east of the province of Salta; almost all the province of Santiago del Estero; north, northeast and center of the province of C\u00f3rdoba).<\/p>\n

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[vc_column_text]It is a vast plain interrupted by important watercourses and by mountain ranges with forests adapted to drought. It features continental, hot subtropical climate. Some of its areas have the highest temperatures in the continent.[\/vc_column_text][vc_separator type=”transparent”]<\/div><\/div>
[vc_column_text]The region has a really high production potential. However, this region is subject to a process of serious degradation of its natural resources and of its biodiversity. These conditions emphasize the social and economic marginalization of the indigenous communities and peasant families living there.[\/vc_column_text][vc_separator type=”transparent”]<\/div><\/div>[\/vc_column][vc_column width=”1\/2″ css=”.vc_custom_1467867181942{padding-top: 5px !important;background-image: url(http:\/\/www.semiaridos.org\/files\/2016\/07\/Gran-Chaco-bg.png?id=390) !important;background-position: 0 0 !important;background-repeat: no-repeat !important;}” el_class=”mapas-sa”][vc_separator type=”transparent” thickness=”250″][vc_row_inner row_type=”row” type=”full_width” text_align=”right” css_animation=””][vc_column_inner width=”1\/2″][vc_separator type=”transparent”][\/vc_column_inner][vc_column_inner width=”1\/2″]
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Area<\/h3>

1.000.000 sq. km.<\/p><\/div><\/div><\/div><\/div>[\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row css_animation=”element_from_top” row_type=”row” use_row_as_full_screen_section=”no” type=”grid” anchor=”nordeste-brasil” angled_section=”no” text_align=”left” background_image_as_pattern=”without_pattern” padding_top=”50″ transition_delay=”1″ css=”.vc_custom_1468190754600{padding-right: 15px !important;padding-left: 15px !important;}”][vc_column width=”1\/2″ css=”.vc_custom_1467867134389{padding-top: 5px !important;background-image: url(http:\/\/www.semiaridos.org\/files\/2016\/07\/Brasil-bg.png?id=389) !important;background-position: 0 0 !important;background-repeat: no-repeat !important;}” el_class=”mapas-sa”][vc_row_inner row_type=”row” type=”full_width” text_align=”right” css_animation=””][vc_column_inner width=”1\/2″]

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Inhabitants<\/h3>

Almost 22 million<\/p><\/div><\/div><\/div><\/div>

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Area<\/h3>

1.000.000 sq. km.<\/p><\/div><\/div><\/div><\/div>[\/vc_column_inner][vc_column_inner width=”1\/2″][vc_separator type=”transparent”][\/vc_column_inner][\/vc_row_inner][\/vc_column][vc_column width=”1\/2″]

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Northeast of Brazil<\/strong><\/span><\/h3>\n

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[vc_column_text]The semi-arid region of Brazil is present in eight states of the Northeast and in Minas Gerais. It is the most populated semi-arid region in the world, with a population reaching approximately 22 million people. The prevailing vegetation is the Caatinga, indigenous name meaning \u201cwhite forest\u201d due to the whitish color typical of the periods of drought, when leaves fall.[\/vc_column_text][vc_separator type=”transparent”]<\/div><\/div>
[vc_column_text]However, this is just an ecological adaptation of the vegetation in order to lessen the amount of water lost in the dry season. Rainfall in the area ranges between 250 mm and 800 mm per year, concentrated in a short four-month period. The high evaporation rate makes the amount of evaporated water higher than the rainfall.[\/vc_column_text][vc_separator type=”transparent”]<\/div><\/div>
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