【摘要】 刺槐属温带树种,在我国中、北部广泛种植。1991年首次在广东省大规模引植刺槐,并作为石灰岩山地的绿化优良树种。试验结果表明,刺槐在广东省连州市石灰岩地区石山中、下部生长良好,其根肥大而横向生长,结瘤固N,适应性强,4年龄刺槐生长速度加快,6年龄树高达4～7m。石灰岩山地种植刺槐林可防止水土流失,高温干旱季节可提高土壤蓄水能力,降低地温和空气温度,增加空气湿度。更多还原

【Abstract】 Robinia pseudoacacia L is a plant which is distributed in Temperate Zone. It had been planted widely in central and north China. In 1991, we first introduced this plant into Guangdong Province on a large scale and planted for afforesting the limestone hills in north Guangdong Province. The results showed that this plant could grow well in the limestone hills in north Guangdong. This species could adapt to arid and thin soil of limestone hill. Its roots were plump and juicy. It has nodules that can fix nitrogen. Robinia pseudoacacia. L gained high growth speed when it had been planted in limestone hill for three years. Six years old tree could reach 4-7 meters high. The forest of Robinia pseudoacacia L could obviously improve the environment in limestone hills through preventing soil erosion,increasing the capacity of soil to reserve water,lowering soil and air temperature,increasing air humidity especially in hot and dry season.更多还原