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时间:2020-05-22
《长白山山地寒温针叶林带主要林型的细根生物量与土壤养分分析-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第15卷第1期北华大学学报(自然科学版)Vol_l5No.12014年2月JOURNALOFBEIHUAUNIVERSITY(NaturalScience)Feb.2014文章编号:1009-4822(2014)01-0091-04DOI:10.11713/j.issn.1009-4822.2014.01.023长白山山地寒温针叶林带主要林型的细根生物量与土壤养分分析赵莹,金慧,尹航,赵伟,陈庆红,秦立武,代玉红(长白山科学研究院;吉林省长白山植物(药用植物)种质资源保护工程实验室,吉林二道白河133613)摘要:以长白山山地寒温针叶林带为研究对象,选取4种不同林型(典型云冷杉林、红松云冷杉
2、林、亚高山型落叶松林、落叶松林)分析林内细根生物量与土壤养分及其相关性.结果表明:细根生物量随土壤深度的增加而减少,0—10cm土层细根生物量富集,亚高山型落叶松林>红松云冷杉林>典型云冷杉林>落叶松林,10~20cm土层细根生物量为典型云冷杉林>落叶松林>亚高山型落叶松林>红松云冷杉林;细根生物量与土壤养分的偏相关分析显示:0~10cm土层的细根生物量与土壤养分无显著相关性,10~20cm土层细根生物量能有效地改善土壤有机质及氮素营养水平,均表现为显著的正相关性,与土壤全P、全K无显著相关性.关键词:长白山;山地寒温针叶林带;细根生物量;土壤养分中图分类号:$714.2文献标志码:AAna
3、lysesonFineRootBiomassandSoilNutrientsofMainVegetationTypesofRigid-TemperateZoneConiferousForestinChangbaiMountainsZHAOYing,JINHui,YINHang,ZHAOWei,CHENQing—hong,QINLi—WLI,DAIYu—hong(ChangbaiMountainPlants(MedicalPlants)GermplasmResourcesProtectionEngineeringLaboratoryinJilinProvince;ChangbaiMountai
4、nAcademyofSciences,Erdaobaihe133613,China)Abstract:Takingfourmajorvegetationtypes(Typicalspruce—firforest,Koreanpine—spruce—firforest,SubalpineLarchforest,Larchforest)ofrigid-temperatezoneconiferousforestinChangbaiMountains.Finerootbiomass,soilnutrientsandtheircorrelationwereanalyzed.Resultsshowedt
5、hatfinerootbiomassdecreasedwithincreasingofsoildepth.Thefinerootbiomasswasmainlydistributedin0~10emsoillayer,withtherankofSubalpineLarixforest>Koreanpine-spruce—firforest>Typicalspruce—firforest>Larchforest.In10~20cmsoillayer.thefinerootbiomasswastypicalspruce-firforest>Larchforest>SubalpineLarixfo
6、rest>Koreanpine—spruce·firforest.Thedatawasassessedbycorrelationanalysisonfinerootbiomassandsoilnutrients,therewasnosignificantcorrelationbetweenfinerootbiomassandsoilnutrients,finerootbiomassin10~20cmsoillayercanimprovesoilorganicmatterandtotalnitrogen,thecorelationwasmarkedlypositive,andthereisno
7、tobviouscorrelationoftotalPandKinthesoil.Keywords:ChangbaiMountains;rigid-temperatezoneconiferousforest;finerootbiomass;soilnutrients收稿日期:2013.12-06基金项目:国家地震行业科研专项经费项目(201208005).作者简介:赵莹(1980一),女,工程师,硕士,主要从
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