几种泥炭基质物理性质比较研究

对国内外泥炭的颜色、结构、容重、孔隙度、大小孔隙比、饱和含水量等物理性质进行测试和分析,结果表明,与进口泥炭相比,国产泥炭外观不稳定,泥土等杂质含量高,容重、分解度大,总孔隙度小,吸水性差.国产泥炭和进口泥炭的物理性质存在差异显著,添加了蛭石和活性成分的进口泥炭与进口纯泥炭和国产泥炭相比吸水性和通透性明显提高.

Comparisons of Physical Properties of Several Peat as Growing Mediums

A comparative study of the physical properties of domestic and foreign peat as growing mediums was carried out. The test items include color, structure, bulk weight, total porosity,void ratio,and saturated water content, etc. The results show that the Chinese peat has an appearance of instability with few soil and other impurities. Compared with the import peat, the Chinese peat has a higher bulk density and decomposition degree, and a lower total porosity and water absorption. There is a significant difference between Chinese and Canadian peat. The water absorption and permeability of import peat added the vermiculite and active component is higher than that of import pure peat and domestic peat.