立地管理对第2代杉木4年生人工幼林生长影响的研究  

A Study on the Influence of Site Management Measures on the Growth of Four-year-old Chinese Fir Plantation of Second-generation

作　　者：范少辉[1] 廖祖辉[2] 应金花[2] 杨旭静[2] 何宗明[3] 林光耀[3] 

机构地区：[1]中国林业科学研究院林业研究所,北京100091 [2]福建省南平市林业委员会,福建南平353000 [3]福建农林大学资源与环境系,福建南平353001

出　　处：《林业科学研究》2002年第2期169-174,共6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 (396 30 2 4 0 )

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)BL3BM0 (收获树干和树皮、加倍采伐剩余物 )处理方式对 4年生 2代杉木林的生长最为有利 ,对降低土壤容重和提高土壤pH值的作用最大 ,是最佳的立地管理措施 ;(2 )BL1BM0 (清理树木的所有部分 )处理生长最慢 ;(3)BL0 BM0 (清除地上所有有机质 )处理的杉木在 1～ 2年生时生长为次好 ,但对土壤肥力的维持最为不利 ,3年生后杉木生长略为落后 ;(4)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 ;(5 )采伐剩余物分解至质量残留 5 0 %的时间需要 2 0个月 ,估计分解至质量残留 5 %需要Aimed at studying the influence of various patterns of site management on the productivity of Chinese fir ( 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 IV (Double slash) had the most benefits to the growth of 4 year 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. (2) The pattern II (Whole tree harvest) was the worst. (3) The pattern I (No slash) had positive effect on the growth of C. lanceolata in 1 2 years after planting, but it had negative effect on soil fertility maintenance. (4) The pattern V (Stem and bark harvest + burning) was better than the pattern III (Stem + bark harvest), but the difference is not significant. (5) It is estimated that it will take about 90 months for the harvest residual to be decomposed to the 5% of the weight remains.

关 键 词：立地管理 第2代 4年生 幼林生长 杉木人工林 多代经营 

分 类 号：S719.27[农业科学—林学] S753.5