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《不同溫度及化肥綠肥施用比例對果園土壤有機碳礦化的影響.pdf》由會員上傳分享,免費在線閱讀,更多相關內容在行業(yè)資料-天天文庫。
1、南方農業(yè)學報JOURNALOFSOUTHERNAGRICULTURE2012,43(12):1991~1996一ISSN2095—1191;CODENNNXAABhttp:,,www.nfny)【b-com~—————————————————————————————————————————————————————————————————————一DOI:10.3969/j:issn.2095—1191.2012.12.1991不同溫度及化肥綠肥施用比例對果園土壤有機碳礦化的影響王峰。,王義祥6,陳玉真8,吳志丹8,江福英a,尤志明a,張文錦a,翁伯琦n’(福建省農業(yè)科學院3茶葉研究所,
2、福建福安355015;6農業(yè)生態(tài)研究所.福州350013)摘要:【目的】了解果園土壤有機碳礦化在不同溫度下對不同綠肥施用量的響應關系,為構建果園生態(tài)系統(tǒng)的碳循環(huán)模型提供參數(shù)?!痉椒ā坎捎檬覂扰囵B(yǎng)模擬試驗(培養(yǎng)期85d),在】o、20、30‘c等3個溫度條件下,探討化肥和綠肥不同比例(不施肥、100%氮肥、75%化學氮肥+25%綠肥、50%化學氮肥十50%綠肥、25%化學氮肥+75%綠肥、100%綠肥;各處理氮肥施用水平均為0.159N艱g風干土)還園量對果園土壤有機碳礦化特征的影響?!窘Y果】各施肥處理土壤有機碳礦化速率均表現(xiàn)為培養(yǎng)前期保持較高水平,之后快速下降,培養(yǎng)后期保持相對穩(wěn)定的趨
3、勢;土壤有機碳礦化累積排放量為1439.4--4732.8mg/kg,全綠肥處理土壤CO:累積排放量最大;土壤有機碳礦化速率隨溫度升高而增長,不同的土壤綠肥還園處理土壤有機碳礦化的溫度敏感性(Q。。)不同,以不施肥處理土壤有機碳礦化的溫度敏感性最低,25%氮肥+75%綠肥處理最高,各處理間差異顯著(P4、例;土壤有機碳礦化中圖分類號:S152.4文獻標志碼:A文章編號:2095—1191(2012)12—1991—06EffectsoftemperatureandgreenmanuretreatmentsonorganicCarbonmmeralizatlouln0rCnarnS0lI●■l■』■■1■■WANGFen98,WANGYi-xian96,CHENYu—zhen8,WUZhi-dan8,JIANGFu-yin98,YOUZhi—min98,ZHANGWen-jin8,WENGBo-qi6+(3TeaInstitute,F(xiàn)ujianAcademyofAgricultureSc5、iences,F(xiàn)u’an,Vujtan355015,China;6AgricultureEcologicalInstitute,F(xiàn)uzhou350013,China)Abstract:【Objective】Thisresearchaimedtounderstandthedifferentresponsesoforganiccarbonmineralizationtogreenmanurefertilizersonorchardsot】underdifferenttemperaturesinordertoprovideparametersforconstructingtheo卜chard6、ecosystemcarboncyclemodel.【Method】Bytheindoorculturesimulationtest(culturingperiodlastingfor85d),underthe3temperatureconditionsof10.20,and30℃,effeetsofdifferentproportionsofchemicalnitrogenfertilizerandgreenmanure(nofertilization。loo%nitrogenfertilizer,75%chemicalnitrogenfertilizer+25%greenmanur7、e,50%chem·icalnitrogenfertilizer+50%greenmanure.25%chemicalnitrogenfertilizer+75%greenmanure,and100%greenmanure;eachnitrogenfertilizerapplicationratewas0.15gN/kgindrysoil)werediscussedandtheinfluentialcharacteristicsofor—gan
4、例;土壤有機碳礦化中圖分類號:S152.4文獻標志碼:A文章編號:2095—1191(2012)12—1991—06EffectsoftemperatureandgreenmanuretreatmentsonorganicCarbonmmeralizatlouln0rCnarnS0lI●■l■』■■1■■WANGFen98,WANGYi-xian96,CHENYu—zhen8,WUZhi-dan8,JIANGFu-yin98,YOUZhi—min98,ZHANGWen-jin8,WENGBo-qi6+(3TeaInstitute,F(xiàn)ujianAcademyofAgricultureSc
5、iences,F(xiàn)u’an,Vujtan355015,China;6AgricultureEcologicalInstitute,F(xiàn)uzhou350013,China)Abstract:【Objective】Thisresearchaimedtounderstandthedifferentresponsesoforganiccarbonmineralizationtogreenmanurefertilizersonorchardsot】underdifferenttemperaturesinordertoprovideparametersforconstructingtheo卜chard
6、ecosystemcarboncyclemodel.【Method】Bytheindoorculturesimulationtest(culturingperiodlastingfor85d),underthe3temperatureconditionsof10.20,and30℃,effeetsofdifferentproportionsofchemicalnitrogenfertilizerandgreenmanure(nofertilization。loo%nitrogenfertilizer,75%chemicalnitrogenfertilizer+25%greenmanur
7、e,50%chem·icalnitrogenfertilizer+50%greenmanure.25%chemicalnitrogenfertilizer+75%greenmanure,and100%greenmanure;eachnitrogenfertilizerapplicationratewas0.15gN/kgindrysoil)werediscussedandtheinfluentialcharacteristicsofor—gan
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