Changing Regular ities and Structura l Character istics of the Bioma ss andProductivity of Aerially Seeded Pinus m asson iana Planta tion

QI Liang-hua; ZHANG Xu-dong; ZHOU Jin-xing; LI Zhi-hui; HUANG Ling-ling; YANG Mo-hua

Through classifying and combining of site condition, forest age and density, the single-tree biomass, forestbiomass, structural characteristics and p roductivity of aerially seeded Pinus m asson iana p lantations in Hu’nan p rovince were studied based on 176 standard p lots’data. The results are as follows. The biggest biomass values of single-tree or standswere 181. 12 kg and 84. 49 t·hm-2 respectively, and the smallest oneswere 15. 73 kg and 8. 85 t·hm-2 , and the biggestwere 11. 5 times and 9. 5 times asmuch as that of the lowest, so it could be seen that thebiomass of single-tree had a more wide changing extent than stands’. For every combination type, the biomass ofsingle-tree or stands all showed the regularity of trunk > root > branch > bark > leaf. In different site indexes andstand densities, the net p roductivity had extraordinary difference for different ages so that the biggestwas 19. 4 timesasmuch as that of the lowest, exceeding 5. 52 t·hm-2 ·a-1. These results could offer some scientific basis forcomp rehensively supervising and managing of aerially seeded Pinus m assoniana p lantations.

1. Research Institute of Forestry, CAF

2. Key Laboratory of Tree Breeding and Cultivation, State Forestry Administration,Beijing　100091, China

Received Date: 2005-11-15

Abstract: Through classifying and combining of site condition, forest age and density, the single-tree biomass, forestbiomass, structural characteristics and p roductivity of aerially seeded Pinus m asson iana p lantations in Hu’nan p rovince were studied based on 176 standard p lots’data. The results are as follows. The biggest biomass values of single-tree or standswere 181. 12 kg and 84. 49 t·hm-2 respectively, and the smallest oneswere 15. 73 kg and 8. 85 t·hm-2 , and the biggestwere 11. 5 times and 9. 5 times asmuch as that of the lowest, so it could be seen that thebiomass of single-tree had a more wide changing extent than stands’. For every combination type, the biomass ofsingle-tree or stands all showed the regularity of trunk > root > branch > bark > leaf. In different site indexes andstand densities, the net p roductivity had extraordinary difference for different ages so that the biggestwas 19. 4 timesasmuch as that of the lowest, exceeding 5. 52 t·hm-2 ·a-1. These results could offer some scientific basis forcomp rehensively supervising and managing of aerially seeded Pinus m assoniana p lantations.

HTML

Reference (12)

[1]	漆良华,庞统,李志辉. 马尾松飞播林的养分循环研究[J]. 中南林学院学报, 2003, 24 (1) : 32～35
[2]	李志辉,漆良华,柏方敏,等. 马尾松飞播林土壤肥力研究[J]. 中南林学院学报, 2004, 24 (5) : 32～35
[3]	漆良华,李志辉. 马尾松飞播林综合经营专家模拟系统研制[J].林业科技开发, 2005, 19 (3) : 30～32
[4]	Cairns M A, Olmsted I, Granados J, et al. Composition andaboveground tree biomass of a dry semi - evergreen forest onMexico’s Yucatan Peninsula [J]. Forest Ecology and Management, 2003,186: 125～132
[5]	Brown SL, Schroeder P, Kern J S. Spatial distribution of biomass inforest of the eastern USA [J]. Forest Ecology and Management,1999, 123: 81～90
[6]	丁贵杰,王鹏程. 马尾松人工林生物量及生产力变化规律研究Ⅱ. 不同林龄生物量及生产力[J]. 林业科学研究, 2001, 15 ( 1) :54～60
[7]	李燕燕,樊后保,孙新. 马尾松纯林及其混交林生物量的空间结构[J]. 福建林学院学报, 2005, 25 (3) : 215～220
[8]	田大伦,项文化,闫文德. 马尾松与湿地松人工林生物量动态及养分循环特征[J]. 生态学报, 2004, 24 (10) : 2207～2210
[9]	林业部科技司. 森林生态系统定位研究方法[M]. 北京:中国林业出版社, 1994
[10]	Sotoo T, Madwgwick, H A I. ForestBiomass [J]. Forest Sciences,1982 (2) : 298～303
[11]	潘维俦. 杉木人工林生态系统中的生物量及其生产力研究[J].中南林科技, 1978 (2) : 2～14
[12]	汪企明. 江苏省湿地松人工林生物量的初步研究[J]. 植物生态学与地植物学报, 1990, 14 (1) : 1～6

Changing Regular ities and Structura l Character istics of the Bioma ss andProductivity of Aerially Seeded Pinus m asson iana Planta tion

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Proportional views