Abstract:

The investigation and analysis were carried out to compare the influences on soil properties among six mixed forests of Chinese fir and Phyllostachys heterocycla cv. pubescens, pure Chinese fir stands, and pure Phyllostachys pubescens stands. The results showed that the mixed stands, comparing with the pure Chinese fir stands and the pure Phyllostachys heterocycla cv. pubescens stands, resulted in not only the improvement of physical and chemical properties of soil, but also the enhancement of soil fertility. Moreover, the mixed stands of 1350 culms of Chinese fir per hectare had the best effect on soil properties and the growth of culms, and produced the outstanding economic profits. Chinese fir and Phyllostachys heterocycla cv. pubescens mixed forests may become a powerful and efficient treatment to prevent soil from degradation and exert the soil fertility in the southern China.

Key words: Chinese fir, Phyllostachys heterocycla cv.pubescens, The mixed forest, Soil fertility, Evaluation of effect