摘要
针对辽宁省境内油松纯林内松毛虫危害严重、水土保持效果差、效益低等现状,对宽甸县境内的油松纯林实施增植刺槐、山杏、蒙古栎、胡枝子等树种进行混交改造试验,结果表明:混交25年后,林间树冠的截雨效果明显增强,枯枝落叶的厚度及质量增加,提高了土层中含水量,保持水土的效果增强,平均纯利润是油松纯林的11倍左右。
Aiming at the present situation of Dendrolimus tabulaeformis which seriously damaged Pinus tabulaeformis pure forest in Liaoning Province in a large area,the soil and water conservation effect is poor,and the benefits are low.Result shows that:After 25 years of mixing,the interception effect of the canopy in the forest enhance significantly,the thickness&weight of litter increase,the water content in the soil layer increase,and the effect of maintaining soil and water greatly enhance,the average net profit is about 11 times larger than that of Pinus tabulaeformis pure forest.
作者
黄春玲
Huang Chunling(State-owned Forest Farm Management Affairs Service Center,Liaoning Kuandian Manchu Autonomous County,Dandong 118200,China)
出处
《防护林科技》
2020年第4期37-38,57,共3页
Protection Forest Science and Technology
关键词
油松纯林
林分改造
混交林
水土保持效果
经济效益
Pinus tabulaeformis
stand improvement
mixed forest
soil and water conservation
economic benefit
