武威市凉州区东北部沙漠沙生植物的筛选

Screening of Desert Sand Plants in the Northeast of Liangzhou District,Wuwei City

温度和水分是影响沙生植物成活和生存最关键的因素,沙生植物的生存对于沙漠生态环境的稳定至关重要。为了使栽植的沙生植物在沙漠中很好地生长,一方面要考虑外界的温度、水分等自然因素,另一方面要考虑引进物种的生长习性。研究区位于甘肃省武威市凉州区东北部的腾格里沙漠边缘。本研究通过多种植物的引种栽培试验,观测其生理指标和生态适应性,探讨引种植物在当地的存活情况。从成活率和物候期来看,梭梭在研究区的适应性最强,其次为花棒、柠条和沙拐枣,沙棘和沙冬青最不适应;从植物的生长量来看,花棒最大,其次为柠条、梭梭和沙拐枣。凉州区种植沙生植物时,要结合实际情况选择不同植物,在自然条件特别恶劣和保证成活率的前提下,优先选择梭梭,在自然条件较好的区域,为了提高地表盖度,可以选择花棒和柠条。

Temperature and moisture are the most critical factors affecting the survival and existence of sand plants,and the survival of sand plants is crucial to the stability of the desert ecological environment.In order to make the planted sandy plants grow well in the desert,on the one hand,natural factors such as external temperature and moisture should be considered,and on the other hand,the growth habits of the introduced species should be considered.The study area is located on the edge of the Tengger Desert in the northeast of Liangzhou District,Wuwei City,Gansu Province.In this study,through the introduction and cultivation experiments of various plants,the physiological indicators and ecological adaptability are observed,and the survival of the introduced plants in the local area is discussed.From the perspective of survival rate and phenological stage,Haloxylon ammodendron has the strongest adaptability in the study area,followed by Hedysarum scoparium,Caragana korshinskii and Calligonum arborescens,and Hippophae rhamnoides and Ammopiptanthus mongolicus are the least suitable;judging from the growth of plants,the Hedysarum scoparium is the largest,followed by Caragana korshinskii,Haloxylon ammodendron and Calligonum arborescens.When planting sand plants in Liangzhou District,different plants should be selected according to the actual situation,under the premise that the natural conditions are particularly bad and the survival rate is guaranteed,Haloxylon ammodendron is the first choice,in areas with better natural conditions,in order to improve the surface coverage,Hedysarum scoparium and Caragana korshinskii can be selected.