东兰县森林立地类型的划分及退耕还林树种设计

Forest Site Type Classification and Trees Type Design for Converting Farmland into Forest in Donglan County

以东兰县的宜林地为研究对象,参照德国的巴登—符腾堡和美国的巴恩斯等为代表的森林生态因子学派的理论和方法,采用典型抽样的样地调查及总结森林经营经验的方法,研究东兰县森林立地类型的划分及退耕还林树种的设计。结果表明,东兰县森林立地类型共划分为5个类型小区、6个类型组、15种立地类型;退耕还林地主要分布在5、7、8、9、10、11、13等7种立地类型上,退耕还林的3个功能治理区设计主要营造板栗、八角和喜树3种树种。研究将为东兰县退耕还林的林分经营管理提供理论依据。

Object of study on forest land suitable in Donglan county, the appearance field adopt a typical samphng inquires into and sums up forest management experience method, consult theory and method being the forest organism＇s habits factor school representing such as German Baden Wuntemberg and American Baensi, study on forest site type classification and seeds of trees is designed for converting farmland into forest in Donglan county. Results indicated that forest site type divide small for5 type areas together, 6 type groups, 15 site types in Donglan county, the land for convening farmland into forest scatters mainly in 5,the type is listed in 7, 8, 9, 10, 11, 13 rank of 7 site types, Design the seeds of trees building three kinds mainly of three functions govern area for convening farmland into forest, Castanea mollissima, Illicium verum and Camptotheca acuminate. Management control provides the theory basis to standing forest for convening farmland into forest in Donglan county.