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杉木人工林自毒作用研究(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2000年01期
Page:
12-16
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
AStudyonSelf poisoningEffectsofChineseFirPlantation
Article ID:
1000-2006(2000)01-0012-05
Author(s):
MaXiangqing LiuAiqin HuangBaolong (FujianForestryCollege Nanping 3530 0 1)
NanjingForestryUniversity
Keywords:
ChinesefirSelf poisoningeffectContinuousplanting Soildegradation
Classification number :
S718.5;S723
DOI:
10.3969/j.jssn.1000-2006.2000.01.004
Document Code:
A
Abstract:
Theself poisoningeffectsofChinesefirplantationarestudiedthroughtheseedgerminationexperiment withtheextractsoforgans ,bulksoilsandrhizospheresoilofdifferentrotationplantations .Theresultsareasfollows: therearesomepoisonoussubstancesinhibitinggerminationofChinesefirseedsinsoilsofChinesefirplantations. Theinhibitingeffectbecomesstrongerandstrongerwithincreaseofplantinggenerations.Extractsfromtheorgansof Chinesefirtreesalsohavesomeinhibitingeffectsonseed’sgermination ,buttheeffectofleafisthestrongest.Lower concentrationextractsofundergroundvegetationmaybefavorabletotheseed’sgerminationwhereasthehighercon centrationwillreversetheresults.Itindicatesthatthe“self poisoning”effectsofChinesefirplantationsmightbeone ofthereasonsforpoornaturalregenerationandsoildegradationofChinesefirplantation.

References

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Last Update: 1900-01-01