摘要
为研究不同立地管理方式对多代经营杉木人工林生产力的影响 ,在 1代杉木采伐迹地上用5种林地处理方式进行 2代杉木人工林营造 ,试验表明 :( 1) BL3 BM0 (收获树干和树皮、加倍填加采伐剩余物 )处理方式对 3年生 2代杉木林的生长最为有利 ,其次为 BL0 BM0 (收获地上所有有机质 )处理 ;( 2 ) BL1BM0 (清走树木的所有地上部分 )处理生长最慢 ;( 3 ) BL2 BM1(商业性收获加炼山 )处理的杉木生长比 BL2 BM0 (商业性收获 )的略好 ,但未达到差异显著水平 ;( 4 )除了 BL3 BM0 处理与BL1BM0 处理间的杉木单株总生物量差异达显著水平外 。
Aimed at studying the influence of various patterns of site management on the productivity of Cunninghamia lanceolata plantation for generations, the second generation C.lanceolata plantation was established with 5 kinds of site preparation patterns on the cleared area of first generation C.lanceolata.The results showed that:(1)The Pattern of Stem and Bark Harvesting+Double Slash had the most benefits to the growth of 3 yeat old C.lanceolata of second generation,and had the most effects on reducing soil bulk specific gravity and raising soil pH value.This is the best site management pattern followed by the Pattern of No Slash.(2)The Pattern of Whole tree Harvesting was the worst.(3)The Pattern of Stem and Bark Harvesting+Burning was better compared with the Pattern of Commercial Harvesting on the growth of C.lanceolata, but the effect was not significant.(4)The difference between Pattern of Stem and Bark Harvestimg+Burning and the Pattern of Stem+Bark Harvesting was significant in total biomass of individual tree.But the difference of growth indexes among various treatment patterns was not signigicant.
出处
《林业科学研究》
CSCD
北大核心
2001年第4期403-407,共5页
Forest Research
基金
CAF/ IDRC/ CIFOR国际合作项目 REDFOL 专题"中国杉木人工林多代经营立地管理与生产力研究"
国家自然科学基金重点项目 (39630 2 40 )
