Soil Characteristics of Two Types of Forests at North Part of Wuliang Mountains Nature Reserve

Soil survey was conducted on six samples in mid-montane moist evergreen broad-leaved forest and semi-moist evergreen broad-leaved forest at north part (Nanjian part) of Wuliangshan Nature Reserve. It is found that there are two main soil types in these two forest types, yellow soil and yellow-brown soil. There is no distinct difference between the soil type of all the six samples. The soil has high content of nutrient factors such as organic matter, while the value of base saturation is somewhat low. The nutrient content and cation exchange capacity of the soil in mid-montane moist evergreen broad-leaved forest are lower than that of semi-moist evergreen broad-leaved forest. The total porosity of the soil in samples is higher than 50 %, the soil permeability is acceptable, and the ion exchange ability is good.