普定后寨河流域土壤有机碳储量估算

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1、分类号：S151.9+S153.6密级：公开论文编号：2012011960贵州大学2015届硕士研究生学位论文普定后寨河流域土壤有机碳储量估算学科专业：水土保持与荒漠化防治研究方向：区域土壤侵蚀与评价导师：周运超（教授）研究生：田潇中国﹒贵州﹒贵阳2015年5月目录摘要·················································································································IAb

2、stract···········································································································II1前言·············································································································11.1国内外研究现状·············

3、·········································································11.1.1土壤有机碳估算方法研究现状···························································21.1.2土壤采样方法研究现状····································································31.1.3土壤空间异质性研究现

4、状·································································41.2研究目的及意义······················································································52研究区概况·················································································

5、···················63研究方法·······································································································63.1试验设计·······························································································63.1.1采样条带··········

6、············································································63.1.2采样单元······················································································63.1.3采样点······································································

7、···················63.2试验方法·······························································································73.2.1样点定位······················································································73.2.2土壤剖面挖掘与观测··················

8、·····················································73.2.2.1剖面规格··············································································73.2.2.2挖掘工具··············································································73.2.2.3挖掘