生物质炭对华北平原4种典型土壤氮素气体损失的影响

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1、分类号：密级：HUAZHONGAGRICULTURALUNIVERSITY硕士学位论文MASTER’SDEGREEDISSERTATION生物质炭对华北平原4种典型土壤氮素气体损失的影响Effectsofbiocharonnitrogenlossesthroughgasemissionfrom4typicalsoilsinNorthChinaPlain研究生:孙贇CANDIDATE：YUNSUN学号:2016303120021STUDENTNO.：专业:环境工程MAJOR：ENVIRONMENTALENGINEERING导师:林杉张水清SUPERVISOR：SHANLINSHUIQIN

2、GZHANG中国武汉WUHAN，CHINA二〇一八年五月MAY，2018华中农业大学硕士学位论文生物质炭对华北平原4种典型土壤氮素气体损失的影响Effectsofbiocharonnitrogenlossesthroughgasemissionfrom4typicalsoilsinNorthChinaPlain研究生孙:贇学号201:6303120021指导教师林杉:张水清学位类型工程硕士:领域环境生态：华中农业大学资源与环境学院中国·武汉CollegeofResourcesandEnvironmentofHuazhongAgriculturalUniversityWuhan,Chin

3、a生物质炭对华北平原4种典型土壤氮素气体损失的影响目录摘要......................................................................................................................................iAbstract............................................................................................................................

4、....ii1前言..................................................................................................................................11.1生物质炭的国内外研究进展...............................................................................21.2生物质炭对土壤氨挥发的影响.............................................

5、..............................31.3生物质炭对土壤温室气体排放的影响...............................................................41.4研究目的与内容...................................................................................................51.4.1研究目的...............................................................

6、.....................................51.4.2研究内容....................................................................................................61.4.3技术路线....................................................................................................72材料与方法................................

7、......................................................................................82.1试验区概况...........................................................................................................82.2试验材料..............