紫色土坡耕地保护性耕作措施对土壤理化性质及养分流失的影响.pdf

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1、SouthwestuniversityM.S.DissertationEffectofConservationTillageMeasuresonSoilPhysicochemicalPropertyandNutrientLossonSlopeFarmlandinPurpleSoilAreaMajor:Soil&WaterConservationandDesertificationDirection:SoilerosionandWatershedmanagementMasterCandidate:GuoTianleiA

2、dvisor:Prof.ShiDong-meiChongqing,ChinaJune,2016本论文为重庆市水利局科技项目紫色丘陵区面源污染防治措施效应评价部分研究内容目录目录摘要...............................................................................................................................IAbstract...................................

3、.........................................................................................V第1章文献综述............................................................................................................11.1秸秆覆盖在农业生产中的应用.......................................

4、..................................11.2生物炭在农业生产中的应用.............................................................................41.3PAM在农业生产中的应用................................................................................61.4存在问题及发展趋势.........................

5、................................................................81.5选题意义.............................................................................................................9第2章研究内容与研究方法...................................................................

6、...................112.1研究目的及主要内容.......................................................................................112.2研究区概况.......................................................................................................122.3研究方法...................

7、........................................................................................132.4数据处理与分析...............................................................................................16第3章不同保护性耕作措施对土壤理化性质的影响..........................................

8、....173.1不同保护性耕作措施下土壤结构特征...........................................................173.2不同保护性耕作措施下土壤入渗特征...........................................................223.3不同保护