摘要
通过开展整地施肥对尾叶桉萌芽林生长影响的研究 ,结果表明 ,全垦、带垦和穴垦 3种整地方式对尾叶桉伐桩萌芽率、直立 /优势萌芽条数及萌芽林树高和胸径生长有一定影响 ,但不明显 ;整地加施肥 (全垦 +施肥、带垦 +施肥和穴垦 +施肥 )比单整地不施肥处理 (全垦、带垦和穴垦 )萌芽率提高 5 %左右 ;直立 /优势萌芽条数整地加施肥处理在 4 .6～ 5 .2条 /桩之间 ,比单整地不施肥处理的平均多 2条 /桩左右 ;2 7个月生时 ,整地加施肥比单整地不施肥处理萌芽林的树高分别提高 6 7.2 % ,6 0 .7%和 85 .3% ,胸径提高 2 8.3% ,2 5 .7%和 10 .7%。
A trial was conducted at Timian Town, Huadu City, Guangdong Province to investigate the effects of site preparation and fertilization on growth of coppice forests of Eucalyptus urophylla . It is shown that there is no significant difference in rate of sprouting stump, number of superior upstanding sprout and growth of height and diameter at breast height between three methods of site preparation including overall, strip and hole site preparation. The rate of sprouting stump of the treatments combining site preparation (three methods mentioned above) with fertilization is meanly 5% more than that of the treatments of site preparation without fertilization, and their number of superior upstanding sprout ranges from 4.6 to 5.2 with 2 sprout per stump more than that of the latter in average. When 27 months old, the growth of three treatments (site preparation combining with fertilization) raises 67.2%, 60.7% and 85.3% in height, and 28.3%, 25.7% and 10.7% in diameter at breast height, respectively in comparison with the treatments of site preparation without fertilization.
出处
《广东林业科技》
2003年第2期22-25,共4页
Forestry Science and Technology of Guangdong Province
