Effects of Application of Edible Fungi Wastes on Respiration and Dissdred Organic Carbon in Soil for Dimocarpus longanlour Planting
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摘要: 在10℃、20℃、30℃温度条件下,采用室内模拟试验,研究不同施肥处理对龙眼园土壤呼吸、土壤可溶性有机碳(DOC)以及土壤微生物量碳(MBC)含量的影响。结果表明:在85 d的培养期内各施肥处理土壤呼吸速率都表现为培养前期保持较高水平,之后快速下降,培养后期保持相对稳定的趋势,土壤CO2累积排放量为1439~4443 mg.kg-1,单施菌渣有机肥土壤CO2累积排放量最大;增温明显促进了土壤呼吸,土壤温度系数Q10值在1.49~2.08,CK处理的Q10值最小,单施有机肥处理Q10值最大;3种温度处理下,施肥均显著提高了土壤DOC和土壤MBC含量,单施菌渣有机肥提高幅度最大,其他施肥处理间差异不显著。Abstract: In laboratory,the soil respiration,dissolved organic carbon(DOC) and microbial biomass carbon(MBC) at 10℃,20℃ and 30℃ with different fertilizations in soil from a longan orchard were studied.The results showed that,in 85 days of incubation,(a)the CO2 production rate was high in the early stage followed by a rapid decrease and stabilization afterwards.The total cumulative amounts of CO2 ranged from 1439 to 4443 mg·kg-1;(b)temperature significantly contributed to the soil respiration-the soil temperature coefficient,Q10 was between 1.49 and 2.08,with the CK the lowest and the N5 treated the greatest;and(c)fungal waste application significantly increased soil respiration,as well as the soil DOC and MBC contents,while other fertilization treatments showed no significant difference.
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Key words:
- soil /
- edible Fungi wastes /
- soil respiration /
- DOC
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[1] 赵鑫,宇万太,李建东.不同经营管理条件下土壤有机碳及其组分研究进展[J].应用生态学报,2006,17(11):2203-2209. [2] SINGH J S,GUPTA S R.Plant decomposition and soil respiration in terrestrial ecosystems[J].Botany Review,1997,43:449-528. [3] 诸葛玉平,张旭东,刘启.长期施肥对黑土呼吸过程的影响[J].土壤学报,2005,36(3):391-394. [4] CHEN Y,WU C Y,SHUI J G,et al.Emissionan dfixation of CO2 from soil system as influenced by long-term application of organic manure in paddy soils[J].Scientia Agricutura Sinica,2005,38 (12):2468-2473. [5] XIAOY,XIEG D,LUC X,et al.The impact of urea amendments on atmospheric gas ergulation services in rice paddy ecosystems and their valuation[J].Acta Phytoecologica Sinica,2005,29 (4):577-583. [6] 国宝松,马凤,张跃新,等.废弃菌渣二次利用及环保处理方法[J].中国林副特产,2005,4:27. [7] 鲁如坤.土壤农业化学分析方法[M].北京:中国农业科技出版社,2000. [8] GHANI A,DEXTER M.Hot-water extractable in soils:a sensitive measurement for determining impacts of fertilization,grazing and cultivation[J].Soil.Biol.and Biochem,2003,35:1231-1243. [9] ROCHETT P,GREGORICH E G.Dynamics of soil microbial biomass C,soluble organic C and CO2 evolution after three years of manure application[J].Canadian Journal of Soil Science,1998,78:283-290. [10] 刘德燕,宋长春,王丽,等.外源氮输入对湿地土壤有机碳矿化及可溶性有机碳的影响[J].环境科学,2008,29(12):3525-3530. [11] 陈涛,郝晓晖,杜丽君,等.长期施肥对水稻土土壤有机碳矿化的影响[J].应用生态学报,2008,17(9):1484-1500. [12] 乔云发,苗淑杰,王树起,等.不同施肥处理对黑土土壤呼吸的影响[J].土壤学报,2007,44(6):1028-1035. [13] 高会议,郭胜利,刘文兆,等.黄土旱塬区冬小麦不同施肥处理的土壤呼吸及土壤碳动态[J].生态学报,2009,29(5):2551-2559. [14] 杨钙仁,张文菊,童成立,等.温度对湿地沉积物有机碳矿化的影响[J].生态学报,2005,25(2):243-248.
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