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黑荆树是速生的用材、兼经济树种。树皮是优质的栲胶原料。开江县1979年开始引种,1980年在全县大面积育苗,造林,1983年调查生长情况。 开江县位于四川盆地东部平行岭谷区,达县地区东南部。县内四周地势较高,中部较低,形如盆地。以丘陵为主,加上少量平坝,其余则为山地。县内气候四季分明、有春雨、夏旱、秋涝和冬干的特点。年平均气温16.8℃,1月平均气温5.7℃,7月平均气温27.5℃,无霜期289天,年降雨量1284mm,5月最多,超过200mm,1月最少,仅13mm。开江县内的自然土壤在海拔800m以下为紫色土。
Black Wattle is a fast-growing timber, and economic species. Bark is a high-quality gum material. Kaijiang County began introduction in 1979, in 1980 the county large area nursery, afforestation, 1983 survey of growth. Kaijiang County is located in the eastern Sichuan Basin parallel Linggou District, southeast of Daxian. Surrounding the county high around the central lower, shaped like a basin. The hills, with a small amount of Pingba, the rest is the mountain. Four seasons of the county’s climate, there are spring rain, summer drought, autumn flood and winter dry characteristics. The annual average temperature of 16.8 ℃, January average temperature of 5.7 ℃, July average temperature of 27.5 ℃, frost-free period of 289 days, annual rainfall of 1284mm, up to May, more than 200mm, January at least, only 13mm. The natural soil in Kaijiang County is purple soil below 800m above sea level.