La gestion des sols est aujourd'hui de plus en plus reconnue comme �tant au cœur des probl�mes environnementaux actuels li�s au changement climatique et � la fertilit� des sols. � l'�chelle mondiale, les changements dans l'utilisation et la gestion des terres ont des effets consid�rables sur les propri�t�s physico-chimiques, microbiennes et agr�gatives des sols. Cela entra�ne d'une part une d�gradation de la qualit� des sols et, d'autre part, une augmentation du r�chauffement climatique et du changement climatique induits par le CO2. Il est donc n�cessaire de comprendre les r�servoirs de SOC dans les diff�rentes fractions physiques (c'est-�-dire les fractions granulom�triques, la biomasse microbienne, le carbone soluble dans l'eau) et chimiques (carbone labile et non labile) du sol, ainsi que les processus qui les influencent (tels que l'activit� microbienne du sol et la dynamique des agr�gats). Cela permettrait de mieux comprendre la dynamique temporelle des propri�t�s du sol dans les agro�cosyst�mes tropicaux arides. Cela rev�tirait une importance capitale pour l'att�nuation du changement climatique mondial, car ces �cosyst�mes poss�dent intrins�quement de solides m�canismes de conservation des nutriments et peuvent agir comme des puits de carbone potentiels (en raison de leur forte insaturation en carbone et de leur couverture terrestre de 41 %). Cet ouvrage passe donc en revue les changements temporels des propri�t�s du sol dans les syst�mes agricoles utilisant des engrais min�raux dans les agro�cosyst�mes tropicaux arides.

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**Please note our transit times are from the date of dispatch.** We first started out as ?The Paperback Exchange,? a chain of physical bookstores where we would part exchange your beloved books for new stories to transport you to faraway places. However, as shopping started to evolve to online shops and marketplaces, we bid our stores goodbye to become ?PBShop.? This transition has only allowed us to blossom as we now ship thousands of titles to book lovers across the globe. We pride ourselves in being a community of local book lovers which allows our passion and devotion to shine in everything we do. In 2020 we not only celebrated our 20th birthday but our 1st birthday as being completely employee owned after becoming an E.O.T in September 2019. We are proud to be different and embrace standing apart on a book mountain by working from a virtual inventory which allows us to provide thousands of books that may be difficult to get for your bookshelf or your studies. Working with a number of different suppliers allows us to explore other avenues such as puzzles, sheet music and even stationery so we really do have something for everyone. Life is about being versatile in all realms of existence. If this is your first purchase with us, or you are a returning customer, we would like to welcome you to the PBShop family, for there is no friend as loyal as a book. We are a company who put our customers at the centre of everything we do as we understand the importance of reading because once you learn to read, you will forever be free. There are a whole lot of things in this world of ours that we are yet to explore, which is why we will forever inspire curious minds.

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