Akhir 15, 1432 / March 20, 2011, SPA -- On behalf of Prince Salman bin Abdulaziz, Governor of Riyadh Region, Prince Dr. Abdulaziz bin Mohammad bin A'ayaf Al Miqrin, Mayor of Riyadh Region, patronized today the activities of Riyadh Region 34th Week of Trees held in the National Al-Ghat Park in Al-Ghat Province. A speech ceremony was held on the occasion highlighting the importance of increasing the areas of greenery and trees. Donations to the Environment Association in Al-Ghat Province were announced.