沙坡头沙地人工植被的群落学特征

本文论述了包兰铁路沙坡头地段铁路北沙地人工植被的种类组成、结构及动态。根据预测, 如果人工植被试验区象目前这样继续封禁下去, 再过20年, 地面固定较好, 人工栽植地段的花棒、柠条以及目前能够天然下种进行更新的油蒿, 都会先后从人工植被试验区退出。作者对进一步深入研究这一工作还提出了几点建议。

Community Features of the Artificial Vegetation on the Sand Land in the Shapotou Area

On this paper the composition of plant species, structure and dynamics of the artificial vegetation under non-irrigation condition along the north side of the Shapotou section of the Baolan railway are discussed. It is predicted that if the artificial vegetation experimental plots are to be excluded continuously as it is, then, in the fixed section of the plots, planted Hedysarum scoparium, Coragana korshinskii and Artemisia ordosica, despite later can regenerat naturally at present time, will allrecede from the plots in twenty years.In the last of this paper, author put forward some suggestions for future researches under this subject.