The nation has called for the construction of ecological civilization to lead the coordination of human-nature relationships and build a shared Earth home for all countries in the world.The greening of the old city mountain in Qingyang City,Gansu Province is taken as the object,and the soil quality is analyzed to find the measures for soil improvement.Firstly,the loess of the old city mountain and the humus soil of Ziwuling were analyzed and compared by physical and chemical tests.Secondly,an orthogonal experiment design without interaction was applied to find out the factors that had a significant influence on the growth of Chinese pines.Finally,the optimal parameters for improving the loess soil quality in the old city were determined,and the effect was verified on this basis,which provided practical significance for afforestation.
关键词
山地绿化/土壤品质/理化检验/正交实验设计
Key words
mountain greening/soil quality/physical and chemical tests/orthogonal experimental design
维普
万方数据