Water stress and drought were the main causes of damage to Chitgar's green space A spokesman for the judiciary: Chitgar Forest Park, with an area of more than 870 dunams, is one of the most important and important green spaces in Tehran in reducing air pollution. Recently, the news about the drying of about 25,000 trees and the spread of a certain pest in this garden created concerns, which were immediately investigated by the direct arrival of Prosecutor Tehran and his deputies, along with experts and relevant parties. Expert investigations have shown that water stress and drought, the type of plant species and the occurrence of pests are the main causes of the crisis and damage to the green space of Chittagong.