NENA oases overview : a strategic role for a fragile ecosystem

Communications & Social Media Administrator; Publications, Production & Workflow Coordinator en ICARDA
2 de Apr de 2019
NENA oases overview : a strategic role for a fragile ecosystem
NENA oases overview : a strategic role for a fragile ecosystem
NENA oases overview : a strategic role for a fragile ecosystem
NENA oases overview : a strategic role for a fragile ecosystem
NENA oases overview : a strategic role for a fragile ecosystem
NENA oases overview : a strategic role for a fragile ecosystem
NENA oases overview : a strategic role for a fragile ecosystem
NENA oases overview : a strategic role for a fragile ecosystem
NENA oases overview : a strategic role for a fragile ecosystem
NENA oases overview : a strategic role for a fragile ecosystem
NENA oases overview : a strategic role for a fragile ecosystem
NENA oases overview : a strategic role for a fragile ecosystem
NENA oases overview : a strategic role for a fragile ecosystem
NENA oases overview : a strategic role for a fragile ecosystem
NENA oases overview : a strategic role for a fragile ecosystem
NENA oases overview : a strategic role for a fragile ecosystem
NENA oases overview : a strategic role for a fragile ecosystem
NENA oases overview : a strategic role for a fragile ecosystem
NENA oases overview : a strategic role for a fragile ecosystem
NENA oases overview : a strategic role for a fragile ecosystem
NENA oases overview : a strategic role for a fragile ecosystem
NENA oases overview : a strategic role for a fragile ecosystem
NENA oases overview : a strategic role for a fragile ecosystem
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NENA oases overview : a strategic role for a fragile ecosystem

Notas del editor

  1. While 41% of the global land are drylands ; 10 to 20 % are hihgly degraded : Asia is the most affected 1.4 billion Africa has 74 % of its land affected North America, Australia and Europe are also affected In the same time 38 % of the world population ( 2.3 billlion) live in this areas : 250 millions are directly affected by consequences of desertification Unfortunatly drylands are particularelly targeted by the current trends of a changing world : - the population is increasing much in drylands : from 1.5 to 3 % or more The recorded droughts indicate a concentration in this areas ( 2 or three times more ) - the increase of temperature and water stress will be the highest wher drylands are located ( for example the mediterranean region concentrate already 60 % of the world water poor people and will be one of the most affected
  2. Slide modelo para abertura da capitulo — foto serve apenas de referência
  3. Pour répondre à cette question: nous pouvons partir des grands flux mondiaux Puits océanique: pas un levier sur lequel nous pouvons jouer ..au contraire augmente légèrement et pose pbm: acidification des océans PUITS terrestre uniquement par difference!! Donc valeur nette Pas de comptabilisation ascendante (bottom-up)…on ne sépare que les pertes de biomasses …flux des sols globaux: ??