水曲柳的人工更新途径  

Means of Artificial Regeneration of Fraxinus mandshurica

作　　者：荆涛[1] 张林玉[2] 

机构地区：[1]国家林业局调查规划设计院,北京100714 [2]北方国家级林木种苗示范基地,北京102211

出　　处：《江西农业大学学报》2004年第2期174-177,共4页Acta Agriculturae Universitatis Jiangxiensis

基　　金：九五"国家攻关专题"现有林经营管理技术研究"(96-011-03-04)资助项目

摘　　要：为了恢复和发展水曲柳资源,在长白山地区通过设计实验,对水曲柳的人工更新途径进行了研究。在裸地发展水曲柳人工林,因其死亡率高,霜冻危害严重,干型不良等原因,基本上是不成功的。水曲柳在林下生长又因光照不足等原因而生长缓慢。实验表明水曲柳幼树在适度遮荫的林隙环境下生长良好。林隙内光照、土壤温度和空气温度较高,幼树生长较快,而且几乎没有霜冻危害等发生。因此我们改换一种思路,立足于模拟天然更新途径,同时改变其光照不足等弊端,在林缘中与林隙采用人工更新的方法来克服裸地造林的弊端,同时克服林下幼苗幼树因光照不足而生长缓慢的弊端。这一途径可作为培育和发展水曲柳资源的成功模式。To resume and develop the resource of Fraxinus mandshurica, some experiments were conducted to study the means of artificial regeneration of Fraxinus mandshurica in Changbai Mountain. The artificial regeneration of Fraxinus mandshurica in bare land was unsuccessful for its high death rate, serious frost and ill figure. The young trees grew slowly in the forest with high degree of closing. The experiment showed that the young trees grew well in the intervals between forests with moderate shield. The young trees in the mtervals grew fast with higher sunlight, soil temperature and air temperature, and there were few young trees in the forzen areas. So it is advisable to simulate the condition of natural regeneration, and to plant young trees in the forest intervals and edges. By doing so the disadvantage of both planting in bare land and planting in forest could be lessened. This is a successful means to develop the source of Fraxinus mandshurica.

关 键 词：水曲柳 人工更新 郁闭度 林隙 裸地造林 光照 

分 类 号：S792.410.5[农业科学—林木遗传育种]