胡杨(Populus euphratica)衰残林的一些问题

ON POPULUS EUPHRATICA DECLINEING FOREST

胡杨(Populus euphuatica)是塔里木盆地荒漠河岸林的主要建群树种。由于自然因素和人为因素的影响,胡杨林遭受不同程度的破坏,形成片状或带状的衰残林地。塔里木盆地的干旱气候促使胡杨主要靠地下水生存。但对有活根存在的衷退林,在林地水位较好的条件下,可试行采伐并挖去残桩,形成“土坑”,利于胡杨断根萌株幼苗在“土坑”这样的环境中旺盛发育,这是衰退林复状更新的可行性方式之一。

The Popuius euphratica Propagate naturally in the Tarimpendi(basin), which is one of the most major established colony tree species. Because of the affection of natural and human factors the populuseuphratica has suffered destruction in various degrees forming a stretch or belt declining forest fields. In the arid climate in Tarimpendi (basin) the Popuius euphratica forests depend on the underground Water for their growth and can't regenerate naturally under the better condition of hte underground water, the roots alive exist in the decling forest, we may cut ant dig up the remnant stems, forming soil hole. This methed is favourable to young popuius euphratica shoots from fhe underground roots to develop exuberantly. This is one of fhe feasible ways for rejuvenation and regeneration of decling forest.