论文部分内容阅读
在宁夏沙坡头沙漠科研站,我们对常绿灌木沙冬青的自然地理分布、群落组成、树木生态学特性以及人工栽植的有效途径等方面,进行了初步研究。 腾格里半荒漠区是沙冬青天然分布的一个地理中心,其气候特征是:降水稀少,旱年仅有88.3毫米;冬季严寒;夏季酷暑,沙丘表面可达74℃。沙冬青是本区唯一的常绿阔叶乡土树种。 长期以来,沙冬青处于野生状态,以往少有系统记载,我们春季移植野生大苗成功;夏季用纸袋育苗上沙造林亦已成活。
In Shapotou Desert Scientific Research Station in Ningxia, we conducted a preliminary study of the natural geographical distribution, community composition, tree ecological characteristics and the effective ways of artificial planting of evergreen shrubs. The Tengger Desert Semiarid Area is a geographical center of the natural distribution of A. astigmatis. Its climatic characteristics are as follows: Precipitation is scarce, only 88.3 mm in dry years; winter is extremely cold; in summer, it reaches 74 degrees Celsius. Aesculapius is the only evergreen broadleaf native tree species in this area. For a long time, Ammopiptanthus mongholicus in the wild, in the past few systematic records, we successfully transplanted wild seedlings in the spring; the summer with the paper bag afforestation afforestation has also survived.