摘要
以油松、白皮松、华山松、侧柏、桧柏5个树种为材料,在一年中的不同时期,选择不同直径、留桩与否、枝梢修剪,探索修剪与流松脂的关系,确定适宜的修剪时期.结果表明,油松、白皮松、华山松3个树种适宜的修剪期为12月中旬至次年2月中旬,侧柏、桧柏适宜的修剪期为11月上中旬至次年3月中旬;枝条直径、留桩与否与流松脂无明显相关性;松树、柏树枝梢流松脂差异明显,剪去枝梢后油松、白皮松、华山松3树种剪口有松脂流出,侧柏、桧柏剪口没有松脂流出.
Abstract
Using five tree species,including Pinus tabuliformis Carrière,Pinus bungeana Zucc.ex Endl.,Pinus armandii Franch.,as well as Platycladus orientalis(L.)Franco and Juniperus chinensis Roxb.,different diameters,stump retention,and branch pruning were selected at different times of the year to explore the relationship between pruning and resin flow,and determine the appropriate pruning period.The results showed that the suitable pruning period for the three tree species of Pinus tabuliformis Carrière,Pinus bungeana Zucc.ex Endl.,Pinus armandii Franch.was from mid December to mid Feb-ruary of the following year,while the suitable pruning period for Platycladus orientalis(L.)Franco and Juniperus chinensis Roxb.was from mid November to mid March of the following year;There is no signifi-cant correlation between branch diameter,pile retention,and resin flow;There is a significant difference in the flow of pine resin from the branches of pine and cypress trees.After cutting off the branches,pine resin flows out from the cutting edges of three tree species:Pinus tabuliformis Carrière,Pinus bungeana Zucc.ex Endl.,Pinus armandii Franch..However,there is no resin flow out from the cutting edges of Platycladus orientalis(L.)Franco and Juniperus chinensis Roxb..
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