文昌沿海地区林下套种米老排的适应性分析

Adaptability analysis of Mytilaria interplantation in forest in Castal area of wenchang

为研究米老排在海南文昌沿海区域不同森林内混交种植的适应性,2014年9月分别在文昌沿海地区的岛东林场公坡作业区文造村、昌洒作业区63小班和文昌市龙楼镇航天城核心区鲁山村不同树种林下混交种植米老排;2015年9月对造林成活率、苗高和地径生长情况进行统计和比较分析。结果显示:米老排适宜在郁闭度在0.7以上的林内且土壤较肥沃的立地生长,混交林下1年生米老排平均树高达1.1m,平均地径0.45cm,最大树高达1.3m,最大地径0.68cm。不同森林类型内套种米老排进行比较可知,混交林下套种米老排较木麻黄纯林、椰子纯林下生长效果好,但整体试验结果表明米老排在文昌沿海一带不宜大面积种植。

In order to study adaptability of mixed planting Mytilaria in different forest stands in coastal forest area of wenchang,Mytilaria were mixed planting in different forest stands,which belong toGongpo operatiing area and63-subcompartment of Changsa operating area in Daodong forest farm,core area of Skycity in Lushan village Longlou town,along the northeast coast of Hainan Island.One year later,afforestation survival rate, height and diameter growth were recorded and analyzed. The results showed that Mytilaria was suitable to growing at canopy density above 0.7 and fertile soil. The average height,average ground diameter,maximum tree height and maximum ground diameter in 1 year old Mytilaria mixed forest were 1.1m,0.45cm,1.3m and 0.68cm. Interplanting Mytilaria in mixed forest was better for the growth than the pure of Casuarina or the pure of Coconut. But Mytilaria should not be large area planted in coastal areas.