MPI comment - 


Just a couple of small typos.

 Change "We recommend that methods of measurements should be standardized and the development of a global network of experiment in grassland sites is highly recommended"

 to 

 "We recommend that methods of measurements should be standardized and the development of a global network of experimentS in grassland sites is highly recommended"

 and 

 CONSORTIUM PARTNERS :
 - Val SNOW (coordinator), Mark LIEFFERRING

 to 

 CONSORTIUM PARTNERS :
 - Val SNOW (coordinator), Mark LIEFFERING
