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不同经营措施对毛竹林土壤有机碳的影响
  • ISSN号:1001-7488
  • 期刊名称:《林业科学》
  • 时间:0
  • 分类:S718.43[农业科学—林学]
  • 作者机构:[1]浙江农林大学浙江省森林生态系统碳循环与固碳减排重点实验室,临安311300, [2]浙江农林大学亚热带森林培育国家重点实验室培育基地,临安311300, [3]浙江省临安市林业技术服务总站,临安311300
  • 相关基金:国家林业局948项目(2013-4-71);国家自然科学基金项目(31370637);浙江省重点科技创新团队项目(2010R50030);浙江省大学生科技创新活动计划(2013R412045).
中文摘要:

【目的】毛竹在森林应对气候变化中发挥重要的作用,研究竹林不同经营措施的影响,进而了解植被生物量碳库及影响土壤碳库的状况。【方法】利用两因素随机区组设计,排除地形因子等影响,选取施肥和采伐留养方式2个因素,研究不同经营措施对毛竹林各土层2010—2013年土壤有机碳含量和贮量变化影响。【结果】1)不同经营措施0~10 cm层土壤有机碳含量变化最大,介于-0.52%(±0.62%)~0.75%±(0.44%)之间,其中A2 B3(中等施肥弱度采伐)与 A1B1(大量施肥强度采伐)土壤有机碳含量变化量差异极显著(P <0.01);2)中等施肥0~50 cm土壤有机碳贮量增量分别是大量施肥和不施肥的3.61倍和5.05倍,大量施肥和中等施肥0~10 cm 层土壤有机碳贮量变化差异显著(P<0.05);3)弱度采伐0~50 cm 土壤有机碳贮量增量分别是强度采伐和中度采伐的5.51倍和1.63倍,强度采伐和弱度采伐0~10 cm层土壤有机碳贮量变化差异显著( P <0.05);4)不同经营措施0~50 cm土壤有机碳贮量变化介于-15.56(±10.21)~53.15(±37.81)tC·hm -2之间,其中 A2B3(中等施肥弱度采伐)与 A1B1(大量施肥强度采伐)土壤有机碳贮量变化差异极显著(P <0.01);5)结合效应图得出结论,A2B3(中等施肥弱度采伐)的经营方案对0~50 cm土壤有机碳含量和贮量的积累效果最佳,而 A1 B1(大量施肥强度采伐)的经营方案最不利于0~50 cm土壤有机碳含量和贮量的积累。【结论】大量施肥强度采伐方式虽然可以保证竹材的大量输出,却会破坏原有的竹林生态结构,同时对土壤碳含量和贮量的影响尤为不利,从毛竹林生态系统碳汇积累角度考虑,并不是最可取的竹林经营方式。同时经营过程中,不同经营措施不仅会对土壤碳库产生影响,更会显著改变植被碳库状况,并伴随着?

英文摘要:

[Objective]Moso bamboo is a very important forest resource in Zhejiang province and China. It has excellent carbon sequestration potential and can play an important role in coping with climate change. The international society have gradually recognized REDD + forest carbon sequestration mechanism and greatly expanded the development space of forest carbon sinks and also brought opportunities and challenges for China’s bamboo management in recent years. In this study,vegetation biomass carbon pool was changed to affect soil carbon pool through bamboo forest management. The two-factor randomized block design was used to eliminate the influence of topographical factors and two management measures ( fertilization and cutting ) were applied to investigate the changes in soil organic carbon ( SOM )concentration and carbon ? storage in bamboo forest ecosystems during the period from 2010 to 2013. The results showed that under different treatments,the greatest changes in SOM concentration ranged between -0. 52 ( ± 0. 62 )% and 0. 75 ( ± 0. 44)% in 0 -10 cm soil layer. Significant differences (P〈0. 01) in SOM concentration changes were found in treatments of A2 B3 ( intermediate fertilization level with low-intensity cutting measure) and A1 B1 ( high fertilization level with high-intensity cutting measure ) . Total SOM storage of the intermediate fertilization level increased as much 3 . 61 times and 5. 05 times greater than those of the high fertilization level and no fertilization treatments,respectively. There was significant ( P〈0 . 05 ) difference in SOM storage changes at 0 -10 cm soil layer between high fertilization level and intermediate fertilization level. Total SOM storage of the low-intensity cutting treatment increased as much 5. 51 times and 1. 63 times greater than those of the high intensity cutting measure and medium intensity cutting measure,respectively. There was significant ( P〈0 . 05 ) difference in SOM storage changes in 0 -10 cm soil layer between

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期刊信息
  • 《林业科学》
  • 北大核心期刊(2011版)
  • 主管单位:中国科协
  • 主办单位:中国林学会
  • 主编:尹伟伦
  • 地址:北京万寿山后中国林学会
  • 邮编:100091
  • 邮箱:lykx@vip.sina.com
  • 电话:010-62889820
  • 国际标准刊号:ISSN:1001-7488
  • 国内统一刊号:ISSN:11-1908/S
  • 邮发代号:82-6
  • 获奖情况:
  • 在三届"国家期刊奖"评选中,两次荣获中国期刊最高奖-"国家期刊奖",一次名列"国家期刊奖提名奖"第一名
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘(网络版),英国农业与生物科学研究中心文摘,波兰哥白尼索引,美国工程索引,美国剑桥科学文摘,英国动物学记录,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版),中国北大核心期刊(2000版)
  • 被引量:42472