<dd id="rw0xn"></dd>

    • <label id="rw0xn"></label>
    • <sup id="rw0xn"><strike id="rw0xn"></strike></sup><label id="rw0xn"></label>
      <th id="rw0xn"></th>
      2. 

      3. <var id="rw0xn"></var>
      

        4. 

        1. <table id="rw0xn"></table>
          <sub id="rw0xn"><meter id="rw0xn"></meter></sub>
          
  
    
          
  
          
      
          
    
          

      
  
          • English
            • 

          • ???????
            • 

          • 中文
            • 

          • Fran?ais
            • 

          • Русский
            • 

          • Espa?ol
            • 

          

          
  
          
  
          

          

          
  
          
    
          
            
          
          
    
          
      
            
  
          1. Press centre
            2. 
  
          2. Employment
            3. 
  
          3. Contact
            4. 
  
          
    
          
  
          

          


          
  
          
    
          
      
    
          
    
  
          

          
  
          
    
          
      
          
        
          
          
          
            
          You are here
                    
          
        
          
      
          
    
          
  
          


          
  
          
    
          
      
          
        
          
          
          
                                
          
          
            
          
    
          


          

      
  
          
      
          
      
          
  
      
  
  
          
    
          Seven Challenges for Food Security: Investment is Needed
            
          

  
  
          

          
    
          
  
  
  
      
          
                    
          
  
      
  
  
          
    
  20 October 2008  
          

  
  
          

          
  
      
  
  
          
    
  
          
  &copy; IAEAThe world's population is predicted to increase by another 3 billion people by 2050, surpassing 9 billion. &copy; FAO / Sy DjibrilOpportunities for expanding the land area for growing crops or keeping productive livestock are becoming increasingly limited. So are the possibilities for tapping renewable fresh water resources. Widespread land degradation is causing further low and declining soil fertility. &copy; IAEAAttempts to increase crop and livestock productivity in many developing countries is hampered by low and declining soil fertility caused by widespread land degradation. Additionally, harsh local conditions — such as drought, salinity, frost and flooding — underscore the need for expanding the availability of plant varieties that can be productively grown in such environments. &copy; FAO / Giulio NapolitanoAnimal and plant diseases — and pests that can ravage harvests — extract heavy tolls on productivity, trade and livelihoods. At the same time, the increased use of agrochemicals and numerous outbreaks of food-borne diseases raise concerns about both environmental and food safety. &copy; Dean Calma / IAEAThe resilience of food production systems to climate change must be increased. &copy; IAEAThe balance between crops grown for food and those used to produce biofuel requires better management. &copy; IAEAMore attention is needed to deal with soaring prices of food and agricultural inputs which disproportionately affect the poor. &copy; IAEA&copy; IAEA
          
  
          

  
  
          

          
          
          
  
      
          
      
            
          

    
          Last update:    
    
          15 February 2018    
    
    
  
          

          
    
          
  
  
  
  
  
          


          
  
          
      
          
    
          
  
          






  
          
    
          
      
          
          
          
    
          

      
    
          
    
          More on the IAEA
          
	
            
	  
          1. Contact
            2. 
          
          2. Privacy Policy
            3. 
	  
          3. Logo Usage Guidelines
            4. 
	
          
    
          
  
          

  
          
    
          Scientific resources
          
	
            
	  
          1. NUCLEUS
            2. 
	  
          2. International Nuclear Information System (INIS)
            3. 
	  
          3. Power Reactor Information System (PRIS)
            4. 
	  
          4. Nuclear Data Services (NDS)
            5. 
	
          
  
          

  
          
    
          Resources
          
	
            
	  
          1. Employment
            2. 
	  
          2. Gender at the IAEA
            3. 
	  
          3. Press
            4. 
	
          
  
          

  
          
    
          Documents
          
	
            
	  
          1. Information Circulars
            2. 
	  
          2. Treaties
            3. 
	  
          3. Standards and guides
            4. 
	  
          4. Safeguards and Additional Protocol
            5. 
	
          
  
          


          

      
  

          
  
          Stay in touch
          
  

          


          

          

      
  
          

          Newsletter
          



          

          

          

          

          





          

          

          



          



          

          

          

    


          


          
  
          
      
          
    
          
  


  


    


          <dd id="rw0xn"></dd>
          3. 

          <label id="rw0xn"></label>
          4. <sup id="rw0xn"><strike id="rw0xn"></strike></sup><label id="rw0xn"></label>
            <th id="rw0xn"></th>
            2. 

            3. <var id="rw0xn"></var>
            

              4. 

              1. <table id="rw0xn"></table>
                <sub id="rw0xn"><meter id="rw0xn"></meter></sub>
                

97碰成人国产免费公开视频