不同径级广西红锥人工林生物量及分配特征
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摘要
通过对广西红锥(Castanopsis hystrix) 5～7 a生人工林进行调查,采用生物量模型估算法对广西红锥人工林生物量和生产力及其分配特征进行研究。结果表明:红锥人工林林分及各部位器官生物量与测树因子D2H间存在密切关系,拟合的回归模型预测精确高,可用于红锥人工林生长分析和预测。不同径阶各部位器官生物量的分配规律存在差异,各径阶生物量均以树干最大(32. 37%～42. 43%),其次为树枝;红锥5～7 a生人工林林分平均净生产力为8. 88 t·hm~(-2)·a~(-1),表现出较高的生产力水平,生产力分配规律为树干(37. 39%)>树枝(26. 80%)>树叶(14. 63%)>根系(14. 41%)>根桩(6. 77%)。
Based on the investigation of Castanopsis hystrix 5 ～ 7 a plantation in Guangxi,the biomass model estimation method was used to study the biomass,productivity and distribution characteristics of Castanopsis hystrix plantations in Guangxi. The results showed that the stand and tree parts' biomass were closely linked to observed D2 H indexes,and the regression models fitted very well with high precision,and was applicable to growth analysis and prediction of Castanopsis hystrix plantation.Biomass partitioning among tree parts varied at different diameter scales, with trunk biomass( 32. 37% ～ 42. 43%) being the highest,followed by branch biomass. Mean net productivity of the5 ～ 7 a C. hystrix plantation was 8. 88 t·hm~(-2)·a~(-1),showing a high level of productivity. The net productivity distributions rule is trunk( 37. 39%) > branch( 26. 80%) > leaves( 14. 63%) > root( 14. 41%) > root pile( 6. 77%).
Based on the investigation of Castanopsis hystrix 5 ～ 7 a plantation in Guangxi,the biomass model estimation method was used to study the biomass,productivity and distribution characteristics of Castanopsis hystrix plantations in Guangxi. The results showed that the stand and tree parts' biomass were closely linked to observed D2 H indexes,and the regression models fitted very well with high precision,and was applicable to growth analysis and prediction of Castanopsis hystrix plantation.Biomass partitioning among tree parts varied at different diameter scales, with trunk biomass( 32. 37% ～ 42. 43%) being the highest,followed by branch biomass. Mean net productivity of the5 ～ 7 a C. hystrix plantation was 8. 88 t·hm~(-2)·a~(-1),showing a high level of productivity. The net productivity distributions rule is trunk( 37. 39%) > branch( 26. 80%) > leaves( 14. 63%) > root( 14. 41%) > root pile( 6. 77%).
引文
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[19]闫东锋,马瑞婷,杨庆培,等.间伐强度对栎类天然次生林幼苗更新的影响[J].河南农业大学学报,2019,53(2):187-192.
[20]孙越,何怀江,李良,等.阔叶红松林下6种早夏草本不同生长期生物量分配及模型构建[J].生态学报,2017,37(19):6523-6533.
[21]杜虎,曾馥平,王克林,等.中国南方3种主要人工林生物量和生产力的动态变化[J].生态学报,2014,34(10):2712-2724.
[22]黄云奉,刘屹,黄世友,等.不同林龄马尾松生长及生物量分配研究[J].四川林业科技,2015,36(4):72-75.
[23]姚丹阳.华北落叶松人工林初植密度对生产力的影响研究[J].安徽农学通报,2014,20(24):115-116.
[24]赵秦龙,李春叶,周顺福,等.不同立地条件6年生云南松幼林的生产力及其分配研究[J].绿色科技,2017(3):122-123.
[25]刘俊,滕秋梅,何斌,等. 10年生灰木莲人工林生长规律和生物生产力[J].福建林业科技,2015,42(4):33-36.
[2]窦玉伟,欧光龙,李超,等.思茅松单木生物量生长模型的构建[J].林业调查规划,2018,43(1):1-7.
[3] FANG J,CHEN A,PENG C,et al. Changes in forest biomass carbon storage in China between 1949 and 1998[J]. Science,2001,292(5525):2320-2322.
[4] FOODY G M,BOYDD S,CUTLER M E J. Predictive relations of tropical forest biomass from landsat TM data and their transferability between regions[J]. Remote Sensing of Environment,2003,85(4):463-474.
[5] ONYEKWELU J C. Growth,biomass yield and biomass functions for plantation-grown Nauclea diderrichii(de wild)in the humid tropical rainforest zone of Southwestern Nigeria[J]. Bioresource Technology,2007,98(14):2679-2687.
[6] BOLTE A,LOF M. Root spatial distribution and biomass partitioning in Quercus robur L. seedlings:the effects of mounding site preparation in oak plantations[J]. European Journal of Forest Research,2010,129(4):603-612.
[7]梁有祥,韦中绵,玉桂成,等.桂东南地区火力楠人工林生物量研究[J].林业科技开发,2010,24(5):45-49.
[8]付威波,彭晚霞,宋同清,等.不同林龄尾巨桉人工林的生物量及其分配特征[J].生态学报,2014,34(18):5234-5241.
[9]谭桂菲,安家成,黎贵卿,等. 15年生香樟人工林的生物量及生产力[J].广西林业科学,2017,46(4):369-374.
[10]张林林,刘效东,苏艳,等.马尾松人工林生物量与生产力研究进展[J].生态科学,2018,37(3):213-221.
[11]朱积余,申文辉,蒋燚,等.红锥家系遗传变异与优良家系选择[J].热带亚热带植物学报,2014,22(3):270-280.
[12]洪伟,柳江,吴承祯.红锥种群结构和空间分布格局的研究[J].林业科学,2001,37(S1):6-10.
[13]蒋燚,李志辉,朱积余,等.红锥家系木材密度等物理性状的遗传及变异性分析[J].中南林业科技大学学报,2012,32(11):9-13.
[14]杨会肖,廖焕琴,杨晓慧,等. 2代种子园红锥生长和形质性状遗传变异分析[J].华南农业大学学报2017,38(5):81-85.
[15]申文辉,朱积余,刘秀,等.红锥种源区域试验与优良种源选择[J].中南林业科技大学学报,2014,34(3):11-17.
[16]杨峰,李志辉,蒋燚,等.红锥优良家系ISSR遗传多样性分析[J].中南林业科技大学学报,2012,32(6):123-127.
[17]孟宪宇.测树学[M].北京:中国林业出版社,2006.
[18]陈振雄,贺东北,肖前辉,等.西藏冷杉立木生物量和材积模型研建[J].中南林业科技大学学报,201838(1):16-21.
[19]闫东锋,马瑞婷,杨庆培,等.间伐强度对栎类天然次生林幼苗更新的影响[J].河南农业大学学报,2019,53(2):187-192.
[20]孙越,何怀江,李良,等.阔叶红松林下6种早夏草本不同生长期生物量分配及模型构建[J].生态学报,2017,37(19):6523-6533.
[21]杜虎,曾馥平,王克林,等.中国南方3种主要人工林生物量和生产力的动态变化[J].生态学报,2014,34(10):2712-2724.
[22]黄云奉,刘屹,黄世友,等.不同林龄马尾松生长及生物量分配研究[J].四川林业科技,2015,36(4):72-75.
[23]姚丹阳.华北落叶松人工林初植密度对生产力的影响研究[J].安徽农学通报,2014,20(24):115-116.
[24]赵秦龙,李春叶,周顺福,等.不同立地条件6年生云南松幼林的生产力及其分配研究[J].绿色科技,2017(3):122-123.
[25]刘俊,滕秋梅,何斌,等. 10年生灰木莲人工林生长规律和生物生产力[J].福建林业科技,2015,42(4):33-36.
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