秸秆生物炭对烟区土壤剖面团聚体组成及有机碳分布的影响  

Effects of Straw Biochar on Soil Aggregate Composition and Soil Organic Carbon Distribution in Tobacco Planting Area

作　　者：王恩武[1] 徐玮 王津军[3] 林跃平 肖志新 李永亮 WANG En-wu;XU Wei;WANG Jin-jun;LIN Yue-ping;XIAO Zhi-xin;LI Yong-liang(Shidian County Tobacco Corporation in Baoshan City,Shidian Yunnan 678200;Tobacco Industrial Limited Corporation of Guizhou;China Tobacco Corporation Yunnan Company;Baoshan Branch of Yunnan Province Tobacco Company)

机构地区：[1]保山市烟草公司施甸县烟草分公司,云南施甸678200 [2]贵州中烟工业有限责任公司 [3]中国烟草总公司云南省烟草公司 [4]云南省烟草公司保山市公司

出　　处：《现代农业科技》2018年第21期184-186,共3页Modern Agricultural Science and Technology

基　　金：云南省烟草公司科技计划项目"保山烟区植烟土壤面源污染综合防治技术研究与应用"(2015YN23)

摘　　要：为了探究秸秆生物炭还田对改良植烟土壤品质的影响,在保山烟区研究了不同施用量秸秆生物炭对土壤剖面团聚体组成及有机碳分布的影响。结果表明,与常规施肥对照相比,在常规施肥基础上增施生物炭4 500、9 000 kg/hm2提高了0～20 cm和20～40 cm土层中碱解氮、有机质、有效磷和速效钾的含量,其中增施生物炭4 500 kg/hm2处理显著增加了0～20 cm土层中有效磷、速效钾含量及20～40 cm土层中碱解氮、有机质、有效磷含量,增施生物炭9 000 kg/hm2处理显著增加了0～20 cm土层中有机质、有效磷、速效钾含量及20～40 cm土层中有效磷、速效钾的含量;与常规施肥对照相比,在常规施肥基础上增施生物炭4 500、9 000 kg/hm2处理增加了2～5、1～2、0.5～1.0、0.25～0.50 mm粒级团聚体含量,其中增施生物炭9 000 kg/hm2处理显著增加了2～5 mm粒级团聚体含量,增幅为78.31%;与常规施肥对照相比,在常规施肥基础上增施生物炭4 500、9 000 kg/hm2处理各粒级有机碳的含量均显著增加,其中增施生物炭9 000 kg/hm2处理对各粒级有机碳含量的增加量均大于增施生物炭4 500 kg/hm2处理,增幅分别为17.78%、17.86%、18.08%、27.64%、54.28%和61.19%。由此说明,秸秆生物炭还田不同程度提高了耕层土壤中土壤养分含量、各粒级土壤团聚体以及有机碳的含量。In order to explore the effect of returning straw biochar to field on improving soil quality of tobacco planting area,the effect of returning straw biochar to field on soil aggregate composition and soil organic carbon distribution in tobacco planting area of Baoshan City was studied.The results showed that,compared with the control(conventional fertilization treatment),the treatments of increasing biochar 4 500 kg/hm2 and 9 000 kg/hm2 improved the contents of alkaline hydrolysis nitrogen,organic matter,available phosphorus and readily available potassium in the soil(depth of 0-20 cm and 20-40 cm).The treatment of increasing biochar 4 500 kg/hm2 improved the contents of available phosphorus and readily available potassium in the 0-20 cm depth soil,and improved the contents of alkaline hydrolysis nitrogen,organic matter,and available phosphorus in the 20-40 cm depth soil.The treatment of increasing biochar 9 000 kg/hm2 improved the contents of organic matter,available phosphorus and readily available potassium in the 0-20 cm depth soil,and improved the contents of available phosphorus and readily available potassium in the 20-40 cm depth soil.Compared with the control,the treatments of increasing biochar 4 500 kg/hm2 and 9 000 kg/hm2 increased the aggregate quantity of soil in depth of 2-5 mm,1-2 mm,0.5-1.0 mm and 0.25-0.50 mm.The treatment of increasing biochar 9 000 kg/hm2 increased the aggregate quantity of soil in depth of 2-5 mm by 78.31%.Compared with the control,the treatments of increasing biochar 4500 kg/hm2 and 9000 kg/hm2 improved the contents of soil organic carbon,and the effect of treatment of increasing biochar 9 000 kg/hm2 was more remarkable than the treatment of increasing biochar 4 500 kg/hm2.The increasing amplitude was 17.78%,17.86%,18.08%,27.64%,54.28%and 61.19%,respectively.This indicated that soil nutrients,soil aggregate composition and soil organic carbon distribution were improved by returning straw biochar to field with different degrees.

关 键 词：烟区 生物炭 土壤养分 土壤团聚体 土壤有机碳 影响 

分 类 号：S152.4[农业科学—土壤学]