Soil matrix chemistry LWF

Assessment of several chemical soil parameters at the beginning of the monitoring campaign. Most parameters were determined accordung to the manual of ICP-Integrated-Monitoring. The parameters were analysed for all genetic horizons in soil pits and additionally for fixed layers in the Intensive-Monitoring-Plots. In heterogeneous LWF-plots, several soil pits were analysed in order to assess the soil variability of the plot. The manual (in German) for soil sampling and soil analyses is available in www: http://e-collection.ethbib.ethz.ch/view/eth:25622?q=walthert. The results and data of the first soil survey are available (in German) in www: http://e-collection.ethbib.ethz.ch/view/eth:26275?q=walthert.
Purpose:
The chemical characterisation of soil matrix down to the paraent material is realised with data from soil pits. The monitoring of the soil matrix in a frequency of roundly 15 years is effected with soil samples from Intensiv-Monitoring-Plots. For soil monitoring, pooled samples with 16 replicats are used down to a depth of 80 cm. The date of the second soil survey is not yet fixed.
Manual Citation:
* Walthert L, Lüscher P, Luster J, Peter B (2002) Langfristige Waldökosystem-Forschung LWF. Kernprojekt Bodenmatrix. Aufnahmeanleitung zur ersten Erhebung 1994-1999. ETHZ Zürich, e-collection , Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Vol. 269: 56 p. [10.3929/ethz-a-004375470](https://doi.org/10.3929/ethz-a-004375470)
Paper Citation:
* Walthert L, Blaser P, Lüscher P, Luster J, Zimmermann S (2003) Langfristige Waldökosystem-Forschung LWF. Kernprojekt Bodenmatrix. Ergebnisse der ersten Erhebung 1994-1999. ETHZ Zürich, e-collection , Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, Vol. 276: 340 p.

监测项目启动初期，针对多项土壤化学参数开展评估。绝大多数参数依据ICP综合监测（ICP-Integrated-Monitoring）手册进行测定。分析工作覆盖土壤剖面的所有发生层，同时针对密集监测样地（Intensive-Monitoring-Plots）的固定土层开展额外检测。对于异质性较强的LWF样地，为评估样地内土壤空间变异性，设置多个土壤剖面进行分析。土壤采样与分析的德文手册可通过以下网址获取：http://e-collection.ethbib.ethz.ch/view/eth:25622?q=walthert。首次土壤调查的结果与数据（德文版）可通过以下网址获取：http://e-collection.ethbib.ethz.ch/view/eth:26275?q=walthert。

研究目的：通过土壤剖面数据实现对母质层以上土壤基质的化学特征表征。土壤基质监测计划以约15年为周期，采用密集监测样地的土壤样品开展。土壤监测中，针对深度80cm以内的土层采用16次重复的混合样品进行分析。第二次土壤调查的时间尚未确定。

手册引用：
* Walthert L, Lüscher P, Luster J, Peter B (2002) 长期森林生态系统研究（LWF）：土壤基质核心项目——1994-1999年首次调查采样指南。苏黎世联邦理工学院，e-collection馆藏，瑞士联邦森林、雪与景观研究所WSL，比尔门斯多夫，第269卷：56页。DOI: 10.3929/ethz-a-004375470

论文引用：
* Walthert L, Blaser P, Lüscher P, Luster J, Zimmermann S (2003) 长期森林生态系统研究（LWF）：土壤基质核心项目——1994-1999年首次调查结果。苏黎世联邦理工学院，e-collection馆藏，瑞士联邦森林、雪与景观研究所WSL，比尔门斯多夫，第276卷：340页。