摘要
１９８７～１９９０年，对３５１５ｈｍ２残次毛竹林试验区进行４年２度的砍杂、全垦、全垦结合施肥３种不同的作业方式的对比试验，试验结果均比试验前取得了显著的效益，其平均立竹量由１７１６支／ｈｍ２增加到３０７５支／ｈｍ２，平均胸径由６．６７ｃｍ增加到８．９１ｃｍ，平均度产新竹由３７８０ｋｇ／ｈｍ２增加到１５０９０ｋｇ／ｈｍ２，平均度产竹笋由５７０ｋｇ／ｈｍ２增加到２４３０ｋｇ／ｋｍ２，度产值由７９５元／ｈｍ２增加到３２３５．５元／ｈｍ２，投入产出比为１：７．０８。３种作业方式的比较，以全垦结合施肥为最好。
From 1987 to 1990, 3 reclamation methods as weeding、reclamation and reclamation + fertilization in 3 515 hm2 of remnantPhyllostachgs pubescens forest showed that average density increasedto 3 075 culm/hm2 from 1 716 culm/hm2,average D.B.H.reached8.91cm from 6.67cm.Average new bamboo, bamboo shoot andoutput value every two years increased respectively to 15 090 kg/hm2from 3 780 kg/hm2,2 430 kg/hm2 from 570 kg/hm2 and 3 235.5 yuan/hm2 from 795 yuan/hm2.Input and output ratio was 1:7.8.From 3reclamation methods, reclamation+fertilization was the best one.
出处
《竹子研究汇刊》
北大核心
1996年第2期20-27,共8页
Journal of Bamboo Research
关键词
毛竹
残次林
改造
全垦
施肥
Phyllostachys pubescens
transformation of remnant bamboo forest
reclamation+fertilization
