安徽省不同立地条件对刺槐良种“皖槐1号”生长的影响  

Effects of Different Site Conditions in Anhui Province on the Growth of the Fine Variety Wanhuai No.1 of Robinia pseudoacacia

作　　者：夏尚光[1,2] 苏守香 蔡懿苒[1] XIA Shangguang;SU Shouxiang;CAI Yiran(Anhui Academy of Forestry,Hefei 230031,Anhui,China;Anhui Huangshan Forest Ecosystem National Permanent Observation Station,Huangshan 242700,Anhui,China)

机构地区：[1]安徽省林业科学研究院,安徽合肥230031 [2]安徽黄山森林生态系统国家定位观测研究站,安徽黄山242700

出　　处：《安徽林业科技》2020年第5期7-11,共5页Anhui Forestry Science and Technology

基　　金：国家重点研发计划“刺槐速生建筑材林高效培育技术研究”(编号:2017YFD0600503)。

摘　　要：本文探究安徽省不同立地条件对刺槐新品种"皖槐1号"的生长影响,为其在安徽省造林管理提供理论依据及技术支撑。选择淮北平原、江淮丘陵、皖南山区三种不同立地条件下生长3年的"皖槐1号"刺槐,进行树高、胸径及土壤中C、N、P、K含量和pH值等相关性进行研究。结果表明,"皖槐1号"刺槐胸径增幅与土壤中P、K、pH值呈正相关关系,树高增幅与土壤中的P呈极显著性相关(P<0.01)。空气温度、土壤温度与树高增幅具有极显著负相关性(P<0.01)。"皖槐1号"刺槐具有较强的抗旱性,更适宜在弱碱性或近中性土壤中生长;在淮北平原生长速率最快,江淮丘陵生长速率次之,皖南山区生长速率最小。In this paper,an exploration was made on the effects of different site conditions in Anhui Province on the growth of the new variety Wanhuai No.1 of Robinia pseudoacacia so as to provide theoretical basis and technical support for the afforestation management of the new variety in Anhui.3-year-old young trees of the variety growing in 3 site conditions including Huaibei Plain,Jianghuai Hilly Region and South Anhui Mountainous Region were selected and a study was made on the correlation between the height and DBH of the trees and the contents of C、N、P and K in the soil and pH value.The results showed that there was a positive correlation between the DBH increase of the trees and P and K in the soil and p H value,and the tree height increase was significantly correlated with P in the soil(P<0.01).The air and soil temperatures were extremely negatively correlated with the tree height increase(P<0.01).The variety has good drought resistance and is more suitable for growing in slightly alkaline or near-neutral soil.The variety grows fastest in Huaibei Plain,followed by in Jianghuai Hilly Region,and it has the smallest growth rate in South Anhui Mountainous Region.

关 键 词：刺槐 生长量 立地条件 

分 类 号：S792.27[农业科学—林木遗传育种]