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毛叶山桐子(Idesia polycarpa var.ve-stlta Dicls)属大风子科山桐子属,是很好的木本油料植物,也是珍贵的用材树种。陕南俗称水冬瓜,现约有49万多株,多生长于黄棕壤上,对光照、土层厚度及土壤通透性极为敏感。在光照充足、土层深厚的山坡下部,45年生材积总生长量可达0.55m~3。50年生时材积连年生长量与年平均生长量仍不相交,未达到数量成熟。无心腐或心材变质现象。树高、胸径年平均生长量分别达0.4m和0.5cm。毛叶山桐子在陕南山区既可作为油料树种继续发展,还可作为用材树种集中连片地营造,但应加强水肥管理。育苗采用播种、
Idesia polycarpa var. Ve-stlta Dicls is a genus of the genus Typhonium, which is a good woody oil plant and is also a precious timber species. Southern Shaanxi commonly known as water melon, now has about 490,000 strains, mostly grown in yellow brown soil, the light, soil thickness and soil permeability is extremely sensitive. In sufficient light, deep soil slope in the lower part of the 45-year-old biomass volume growth up to 0.55m ~ 3.50 annual growth rate of volume annual volume and the annual average growth still do not intersect, did not reach the number of mature. Heartless rot or heartwood deterioration phenomenon. Tree height, diameter average annual growth of 0.4m and 0.5cm. In the mountains of southern Shaanxi, the leaves of T. mongolicus can both continue to develop as fuel tree species, but also can be used as tree species to form contiguous and contiguous trees, but water and fertilizer management should be strengthened. Breeding seedlings,