一、前言“三北”一期工程建设以来,新疆以农田防护林为主的平原人工林资源有了迅速增加。许多县市和兵团农场实现了农田林网化的奋斗目标。农田防护林具有广泛的生态经济效益。尤其是过去缺材少柴的和田、莎车等南疆各县,进行林网化建设较早,已基本上形成了林茂粮丰、木材自给有余的喜人局面。在山区森林资源亟待保护的情况下,平原人工林资源的重要 I. INTRODUCTION Since the construction of the first phase of the “Three Norths” project, the resources of plains plantations mainly in the farmland shelterbelt have been rapidly increased. Many counties and corps farms to achieve the goal of farmland network. Farmland shelterbelt has a wide range of ecological and economic benefits. In particular, in the past, such as Hotan, Shache and other counties in southern Xinjiang where the lack of firewood was scarce, the network construction of the Linhe River earlier had basically formed a gratifying situation in which Lin Mao was rich in grain and the timber was self-sufficient. In the mountain forest resources need to be protected, the importance of plain plantation resources