不同坡位和坡向黄甜竹笋用林造林效果分析

The Afforestation Effects of Different Slope Position and Slope Direction on Acidosasa edulis Bamboo Shoot Forest

通过对不同坡向和坡位的黄甜竹笋用林新竹生长量、出笋量的对比试验,结果表明,相同经营管理条件下,黄甜竹笋用林种植4a后已郁闭稳产,坡位和坡向对黄甜竹的新竹生长和竹笋产量都有极显著影响。以下坡的黄甜竹平均眉围、竹高、新立竹量和笋产量最大,分别达到6.3cm、7.2m、1501株、13914kg,中坡次之,上坡最小。以阳坡的黄甜竹平均眉围、竹高、新立竹量、笋产量最大,分别达到了6.1cm、6.9m、1437株、13207kg,半阳坡次之,阴坡最小。

The comparative tests of new bamboo growth increment and bamboo shoot yield of Acidosasa edulis bamboo shoot forest on different slope position and slope direction showed there were great significant differences between new bamboo growth increment or bamboo shoot yield on different slope position and slope direction under the same management condi- tion after 4 years planting. The biggest average circumference at eyebrow height, average height, new standing bamboo yield and bamboo shoot yield were on the downslope, which reached 6.3 cm, 7.2 m, 1501 plants and 13914 kg, respective- ly; the next was that on the mesoslope, and the smallest one was that on the upslope. The biggest average circumference at eyebrow height, average height, new standing bamboo yield and bamboo shoot yield were on the sunny slope, which reached 6.1 cm, 6.9m, 1437 plants and 13207 kg, respectively; the next was that on the semi-sunny slope, and the smallest one was that on the shady slope.