中国大西部经济林栽培区划及开发研究

Cultural Division and Exploitation Study of Non timber Forests in Western China

本文所说的大西部 ,包括不同地理位置的西部和西南部 2大区域 ,其行政区域包括 11个省 (区、市 ) .黄河源头、上游和中游、长江源头和上游均在西部 .西部由于森林植被的破坏 ,水土流失和风沙非常严重 .因此 ,开发西部经济林时 ,必须正确地进行区划 ,因地制宜地安排经济林生产 ,合理开发 .根据西部的气候特点 ,将西部经济林区划为 9个区 19个亚区 ,阐述了各亚区的气候特点 ,对各亚区经济林树种进行了区划 ;最后 。

Western China includes two large parts——the western part and the south western part. In Western China,there are eleven adminstrative areas(provinces or autonomous regions). The source, upper reaches and middle reaches of the Yellow River, and the source, upper reaches of the Yangtze River are located in Western China. Due to the destruction of forest vegetation in Western China, the soil and water losses, and the aeolian sand are very grave. Therefore, while developing non timber forests in Western China, we must correctly make out cultural division and rationally arrange forestation, management and ultilization of non timber forests. According to the climatic characteristics of Western China, we divide its non timber forest area into nine regions and nineteen sub regions. We expound the climatic characteristics of every sub regions and make out the cultural division for non timber tree species. Finally, we give the method of exploiting non timber forest products.