粤北石灰岩地区绿化优良树种——刺槐  

Robinia pseudoacacia L- An excellent species for afforesting the limestone bills in north Guangdong Province.

作　　者：陈兆平[1] 彭建宗[1] 潘国兴[1] 莫熙穆[1] 

机构地区：[1]华南师范大学生物学系,广州510631

出　　处：《生态农业研究》1999年第4期64-66,共3页Chinese Journal of Eco-agriculture

基　　金："八五"~"九五"广东省科委科技攻关项目

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。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.

关 键 词：刺槐 石灰岩 固氮 

分 类 号：S792.26[农业科学—林木遗传育种]