ICS13.080.05 B 11 DB11 备案号：36099-2013 北京 市地 方标准 DB11/T 927—2012 森林土壤调查技术规程 Technical code of practice for survey of forest soil 2012-12-12发布 2013-04-01实施 北京市质量技术监督局 发 布   DB11/T 927—2012 目次 前言 ............................................................................... III 1范围 .............................................................................. 1 2规范性引用文件 .................................................................... 1 3术语和定义 ........................................................................ 1 4前期准备 .......................................................................... 1 4.1技术资料 ...................................................................... 1 4.2路线安排与剖面点布置 .......................................................... 1 4.3工具 .......................................................................... 2 5土壤剖面点选择与挖掘 .............................................................. 2 5.1剖面点选择 .................................................................... 2 5.2剖面挖掘 ...................................................................... 2 6剖面特征观察与记录 ................................................................ 3 6.1土壤层次划分 .................................................................. 3 6.2剖面景观摄影 .................................................................. 3 6.3观察记录 ...................................................................... 3 7土壤样品采集 ...................................................................... 6 7.1原状样品 ...................................................................... 6 7.2分析样品 ...................................................................... 6 7.3比样标本 ...................................................................... 7 7.4整段标本 ...................................................................... 7 7.5微形态样品 .................................................................... 7 8土壤剖面的回填 .................................................................... 7 附录A（规范性附录）森林土壤发生层划分与描述........................................8 附录B（规范性附录）森林土壤侵蚀等级................................................9 附录C（规范性附录）地面岩石裸露等级...............................................10 附录D（规范性附录）森林土壤发生层次过渡特征.......................................11 附录E（规范性附录）常见的土壤结构类型.............................................12 附录F（规范性附录）土壤湿度等级划分...............................................13 附录G（资料性附录）土壤质地野外手感鉴定分级.......................................14 附录H（规范性附录）土壤紧实度分级标准.............................................15 附录I（规范性附录）常见土壤新生体种类.............................................16 附录J（规范性附录）土壤石灰性反应分级.............................................17 I  DB11/T 927—2012 附录K（资料性附录）森林土壤调查