伊犁河流域防护林营建技术模式分析

Silvicultural Technology Model for Protection Forest in Yili River Basin

以伊犁河流域察布查尔县南部山前平原农牧交错带为重点区,根据当地的立地条件,依据适地、适树、适时的原则进行试验示范。在研究区内布置实施了窄林带小网格、窄带多带式、宽林带大网格、混农式和生态经济型等5种不同模式的生态防护林模式,并对这5种模式的配置结构、特点和适用范围作了详细的论述,同时也对其防护效益作了简要评述,以期对改善当地的生态环境,遏制水土流失和土地荒漠化,防治干热风危害,保护绿洲农业生产和安全,促进大农业可持续发展等提供技术支持和科学依据。

According to local site conditions,and based on principles of favored tree for suitable land time,experimental demonstration was conducted by taking agriculture-pasture transition zone in the plain in front of the mountain in southern Qapqal county of Ili River basin as key region.Five different models（narrow belt with small mesh,narrow multi belt,wide belt with big mesh,mixed farming,eco-economic model） of shelterbelt have been arranged.Structure,feature scope of application of these five types of models were described;their protective efficiency were also analyzed;which provide scientific technique evidence for promoting sustainable development of agriculture,improving local ecological environment,curbing soil erosion,combating dry hot wind hazards protecting agricultural production security.