闽粤栲与马尾松混交比例选择及混交效果评价

Mixed Ratio Selection Mixed Effect Evaluation of Castanopsis fissa and Pinus massoniana

在福建省南平市葫芦山国有林场开展闽粤栲、马尾松不同混交比例造林对比试验,结果表明:不同的混交比例,对闽粤栲胸径、材积生长量和马尾松的树高、材积生长量,以及林分单位面积蓄积量均有极显著影响,对闽粤栲的树高生长、马尾松的胸径生长有显著影响。闽粤栲与马尾松混交,可以提高林分的稳定性和林地生产能力。10栲纯林、7栲3马、5栲5马、7马3栲、10马纯林等5种造林模式中,以7栲3马单位面积蓄积最高,5栲5马次之,10马纯林最低。适当增加闽粤栲的比例,有利于闽粤栲、马尾松的胸径、树高生长。

Fujian Nanping Hulushan State Forest Farm carried out afforestation comparative tests of Castanopsis fissa and Pinus massoniana with different mixed ratios, results showed that： different mixed ratios had a significant impact on Castanopsis fissa dbh, volume growth and Pinus massoniana tree height, volume growth volume, and the accumulation of forest per unit area, had a significant effect on Castanopsis fissa trees height growth, Pinus massoniana dbh growth. Castanopsis fissa mixed with pine, which could en- hance the stability of forest and forest land productivity. Among the afforestation models of 10 all Castanopsisfissa pure forest, 7 Castanopsis fissa with 3 PinuS massoniana, 5 Pinus massoniana with 5 Castanopsis fissa, 7 Pinus massoniana with 3 Castanopsis fissa, 10 Pinus massoniana pure forest, 7 Castanopsis fissa with 3 Pinus massoniana accumulated the highest per unit area, followed by 5 Pinus massoniana with 5 Castanopsis fissa, 10 Pinus massoniana pure forest was minimum. Appropriate increase in the proportion of Castanopsis fissa helped Castanopsis fissa and Pinus massoniana＇s diameter and height growth.