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EffectsofSeveralTillageModelsonActiveOrganicCarbonofFluvo-aquicSoil(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年16期
Page:
195-198
Research Field:
Publishing date:

Info

Title:
EffectsofSeveralTillageModelsonActiveOrganicCarbonofFluvo-aquicSoil
Author(s):
YUANLi-wei1; LIUGui-lan1; YANGZhi-chen2; ZENGXian-nan3
1.HebeiTourismVocationalCollege，Chengde，Hebei067000；2.InstituteofAgricultureComprehensiveDevelopment,BeijingAcademyofAgriculturalandForestrySciences，Beijing100097；
3.TillageandCultivationResearchInstitute，HeilongjiangAcademyofAgriculturalSciences，Harbin，Heilongjiang150086
Keywords:
activesoilorganiccarbon; tillage; soilqualitativewatercontent; soiltemperature; decompositionvelocityofstraw; CO2 emissionflux
PACS:
S153.6+1
DOI:
-
Abstract:
Takelong-termpositioningtillageplotsinLuanchengofHebeiasstudyobject，theeffectoffourtillagemodelsincludingtraditionalmoldboardtillage(F1)，traditionalmoldboardtillagewithstrawreturning(F2)，rotarytillage(X)andnotillage(M)onactivesoilorganiccarbon(SOC)content，soilwatercontent，soiltemperature，decompositionvelocityofstrawandCO2emissionfluxwerestudied.TheresultsshowedthattherewasvarianceofactiveSOCindifferentseasons.ActiveSOCcontentinJunetoJulywassignificantlylowerthanApriltoMayandAugusttoSeptember；activeSOCcontentatdifferenttillagemodelsshowedX>M>F2>F1，activeSOCcontentofXwas11.27%~91.46%significantlyhigherthanothertillagemodels.ActiveSOCcontenthadasignificantnegativerelationshipwithsoilqualitativewatercontent，soiltemperatureandCO2 emissionflux，andithadasignificantpositiverelationshipwithdecompositionvelocityofstraw.ActiveSOCcontentofXwasthehighestinfourtillagemodels，whileactiveSOCcontentofMwaslowerthanXdependedonthedepthofstrawreturning.

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Last Update: 2014-09-12