长茂滩林场固沙造林调查研究

STUDY ON SAND-CONTROL AFFORESTATION IN CHANGMAO-TAN FORESTLAND

用主导因子法划分了定边县长茂滩林场的立地条件类型，用定量分析和定性描述相结合的方法，研究了各乔、灌树种在各种立地条件类型上的生长状况、林学特性、固沙效益等，提出了各树种适宜的立地条件及各立地条件下适选的树种、林型（林带或片林）及造林方式。

According to the main factors, the site condition types of forestland in Chang-Mao-Tan, Dingbian County, are classified. With the method of combining quantitative analysis and qualitative description, the growth, forestry characteristics and sand-control benefits of different species of arbors and scrub under different site types were studied. As a result, the suitable site condition of each kind of tree, the fitting tree species, the forest types (belt or stretch) and the planting methods(artificial forest or seeding by aircraft) of each tree species has been suggested.