马尾松、木荷混交林生长效果分析

Analysis on the Growth Effect of Masson pine and Schima Superba Mixed Forest

在杉木采伐迹地营造马尾松(A)、木荷(B)纯林及混交林(C)试验,经过15a的经营管理,对林木生长效果和土壤理化性质进行对比分析。结果显示:马尾松、木荷混交林(C)的林分生长量平均树高、胸径、枝下高、树冠、蓄积量,分别比马尾松(A)、木荷(B)纯林的林分生长量平均树高大15.11%、8.24%,胸径粗21.89%、10.30%,枝下高大29.7%、7.38%,树冠大7.83%、19.73%,单株材积大30.77%、57.69%,蓄积量多32.32%、57.87%。土壤肥力测定:马尾松木荷混交林(C)的土壤N、P、K养分含量,比马尾松木荷纯林(A、B)的土壤N、P、K养分含量均有所提高。

Create Masson pine fir deforested land （A）Superba（B） Chunlin,mixed （C） trials,after 15 years of business management,the effect on tree growth and soil properties were analyzed. The results show：Mixed Forest stand growth per hectare average tree height,diameter,under the branches high,crown,volume, respectively,compared with pine,Pure Forest growth per hectare average tree stands tall 15.11%,8.24%, 21.89% crude DBH,10.30%,29.7% under branch tall,7.38%,crown big 7.83%,19.73%,individual volume large30.77%、57.69%,volume more than 32.32%,57.87%.Soil fertility determination：Mixed Forest （C） of soil N,P,K nutrient content than the Masson Pine Pure Forest （A,B） of soil N,P,K nutrient content were improved.