论文部分内容阅读
成土母岩中硼的丰度及含硼矿物的稳定性是土壤有效硼含量的决定性因素;;而成土母质有效硼与土壤有效硼则更具直接的关系,其相关系数(r)在0.37-0.71之间;;土壤有效硼含量与常年降雨量呈显著负相关;;土壤有机质与有效硼含量呈极显著正相关;;pH值对硼的有效性影响最大。硼的吸附量随pH上升呈直线增加;;随土壤物理性粘粒的增加,对硼的吸附量呈直线增加;;土壤碳酸钙对阴的吸附无明显的影响。
The abundance of boron and the stability of boron-bearing minerals are the decisive factors of effective boron content in soil-forming parent rock. However, the effective boron content of soil parent material is more directly related to soil available boron, and the correlation coefficient (r) 0.37-0.71. There was a significant negative correlation between soil available boron and perennial rainfall. Soil organic matter and available boron were highly significant positive correlations. Soil pH had the most significant effect on the availability of boron. The adsorption amount of boron increased linearly with the increase of pH. With the increase of soil physical clay, the adsorption amount of boron increased linearly. Soil calcium carbonate had no obvious effect on the adsorption of anion.