山西引种假色槭的区域适应性评价

Evaluation on Regional Adaptability of Acer Pseudo-sieboldianum Introduced in Shanxi Province

笔者采用辽宁省清原县1年生和2年生假色槭实生苗,在大坪村、故县村、安疃村进行了引种栽植试验,构建了包括成活率、保存率、越冬死亡率、冻害率、生长状况、病虫害发生率及彩叶发生率等指标的假色槭区域适应性评价体系。结果表明,引种假色槭实生苗2年生苗优于1年生苗。在山西境内,海拔高度在987 m~1520 m之间,日均温大于等于10℃的年积温在2500℃~3000℃,年平均降雨量414 mm以上,年极端最高气温不超过39℃,极端最低气温不低于-31℃,无霜期120 d以上、年均相对空气湿度大于50%,年平均风速小于2.4 m/s的地区,均可以引种栽植假色槭。

Introduction and planting experiment was carried out in Daping village,Guxian village and Antuan village with 1-year-old and 2-year-old seedlings of Acer pseudo-sieboldianum from Qingyuan County in Liaoning Province.The regional adaptability evaluation system of Acer pseudo-sieboldianum was established including indexes such as survival rate,preservation rate,overwintering mortality rate,freezing injury rate,growth status,occurrence rate of diseases and insect pests,occurrence rate of colored leaves and so on.The results showed that introducing 2-year-old seedlings were better than introducing 1-year-old seedlings.And the Acer pseudo-sieboldianum could be planted in these areas in Shanxi Province,where the altitude was between 987 m and 1520 m,the annual accumulated temperature with daily average temperature greater than or equal to 10℃was between 2500℃and 3000℃,the annual average rainfall was more than 414 mm,the annual extreme maximum temperature was not more than 39℃,the extreme minimum temperature was not less than-31℃,the frost free period was more than 120 d,the annual average relative air humidity was more than 50%,and the annual average wind speed was less than 2.4 m/s.