杉木林取代杂木林后土壤结构特性变化的研究

Changes in Soil Structure Following Replacement of Broad-leaved Forest by Chinese Fir Plantation

本文通过对安曹下杉木丰产林和杂木林的土壤颗粒组成、土壤团聚体和土壤空隙特征的研究结果表明：杉木丰产林和杂木林的土壤结构较好，但与杂木林相比，杉木丰产林的土壤结构较差。

The contrasting studies on particle composition, aggregate composition and porous property of the soil at Anchaoxia in Fujian.showed that the soil structure beneath broad-leaved forest (remained at holl ridge)was somewhat better than fast-growing Chinese fir (Cunninghamia lanceolata) plantation(established at hillside). The resultant reason was further discussed in this paper,and some suggestings was put forward to sustain good soil structure during silviculture.