欧美107杨伐根嫁接法造林树木生长状况调查与分析

Growth of Populus×euramiricana 'Neva' with Stump Grafting

通过对欧美107杨胸径、树高、蓄积生长量的调查与分析,结果表明:欧美107杨嫁接法造林与常规法造林相比,生长状况具有明显的优势;3、7、11年生欧美107杨,嫁接法造林和常规法造林相比,平均胸径差异为6.2、11.2、8.7 cm,差异在50%以上;平均树高差异为6、10、6.3 m,第3年和第7年差异率在100%以上,材积在第7年和第11年差异率在100%以上,差异明显。

DBH ,tree height,volume growth of Populusxeuramiricana ‘Neva＇ were analyzed. Result shows that afforestation of Populusxeuramiricana ‘ Neva＇ with grafting method for afforestation compared with the conventional method for afforestation, growth has obvious advantages ; grafting method for afforestation compared to the conventional method for afforestation, the mean DBH differences for 3,7＆11-year-old Populusxeuramiricana ‘ Neva＇ are 6.2,11.2,8.7 cm, the differences being above 50% ;the mean tree height differences are 6,10,6.3 m;differences in rates of mean tree height are above 100% in the 3rd ＆ the 7th year;differences in rates of volume are more than 100% in the 7th ＆ the llth year, and the differences are significant.