小叶杨防护林生长及林下土壤特征分析

Analysis of Growth and Soil Characteristics Under the Protection Forest of Populus Microphylla

目的:探究小叶杨防护林的生长特点和规律,开展小叶杨防护林生长及林下土壤特征分析研究。方法:分别从树高生长过程、直径生长过程和树干材积生长过程方面对小叶杨的防护生长规律进行分析,并进一步得出小叶杨防护林林下土壤的容重特征、含水量特征、机械组成特征、养分及酸碱度特征。结果:小叶杨防护林生长和土壤特征受到土层高度、生长周期、土壤紧实程度等因素的影响。结论:土层高度越高、生命周期越长、土壤紧实度越高,小叶杨防护林生长质量越高,通过研究为小叶杨防护林后期建设与维护提供理论参考依据。

Objective:To explore the growth characteristics and laws of Populus euphratica protection forest,and carry out the analysis and Research on the growth of Populus euphratica protection forest and the characteristics of soil under the forest.Methods:the protective growth law of Populus euphratica was analyzed from the aspects of tree height growth process,diameter growth process and trunk volume growth process,and the characteristics of bulk density,water content,mechanical composition,nutrients and acid alkalinity of soil under Populus euphratica shelter forest were further obtained.Results:the growth and soil characteristics of Populus euphratica protection forest were affected by soil layer height,growth cycle,soil compaction and so on.Conclusion:the higher the soil layer height,the longer the life cycle and the higher the soil compactness,the higher the growth quality of Populus euphratica protection forest.The research provides a theoretical reference for the later construction and maintenance of Populus euphratica forest protection.