杉木林下套种南方红豆杉初步研究

Study on the Plantation of Taxus chinensis Under the Forest of Cunninghamia lanceolata

对杉木林下套种南方红豆杉进行了杉木复层林试验研究。结果表明:南方红豆杉在郁闭度为0.50~0.59的杉木林下套种其生长最好。杉木-南方红豆杉复层林土壤的孔隙度、通气度、持水量均高于杉木纯林的土壤,而杉木纯林的土壤容重大于杉木-南方红豆杉复层林土壤。杉木林下套种南方红豆杉改善了土壤结构,提高了土壤持水能力。

Study on two-layer forest of Cunninghamia lanceolata was carried out by planting Taxus chinensis under the forest of Cunninghamia lanceolata. The results showed that the growth of Taxus chinensis under the forest of Cunninghamia lanceolata which canopy was 0.50 to 0.59 was the best. The soil porosity,venting quality and water capacity of the layer forest of Cunninghamia lanceolata and Taxus chinensis were higher than these of the pure forest of Cunninghamia lanceolata. But the volume weight of soil of the pure forest of Cunninghamia lanceolata was bigger than that of the layer forest of Cunninghamia lanceolata and Taxus chinensis. The forest of Cunninghamia lanceolata through under-planting Taxus chinensis can improve the structure and water capacity.