Effect of climate on coarse woody debris decay dynamics and incorporation into the soils of forested Alpine areas (DecAlp)

气候对粗木质碎屑腐烂动态及其融入高山森林地区土壤的影响 (DecAlp)

• 批准号: 220008281
• 负责人: Professorin Dr. Gabriele Broll
• 金额: --
• 依托单位: BOKU
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2012
• 资助国家: 德国
• 起止时间: 2011-12-31 至 2019-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/220008281?language=en
• 关键词: Effect; climate; coarse; woody; debris

The project deals with coarse woody debris, decay processes in alpine forest soils, soil organisms, humus forms and their relation to climate in an Alpine area (Trentino, climosequences from 1000 m to about 2200 m asl, N- and S- facing slopes, natural coniferous forest). Planned activities are grouped among 3 different “compartments”: Coarse woody debris (CWD) → Humus forms → Soil organic matter (SOM). We have the following research questions: (i) How does climate affect coarse woody decay above and especially in the soil of alpine sites? (ii) What time scales are involved in (CWD decay as a function of climate)? How quickly is CWD integrated into SOM fractions? In which way are the decay products of CWD stabilised? (iii) What are the links between decay mechanisms and the spatial distribution of humus forms? (iv) Can the humus form serve as a proxy for the soil biota for the spatial extrapolation.

该项目涉及粗糙的木质碎片、高山森林土壤的腐烂过程、土壤生物、腐殖质形式及其与高山地区气候的关系（特伦蒂诺，海拔1000米至2200米的气候序列，朝北和朝南的斜坡，天然针叶林）。计划的活动分为三个不同的“隔间”：粗木屑（CWD）→腐殖质形态→土壤有机质（SOM）。我们有以下的研究问题：(1)气候如何影响高山地区土壤中粗木的腐烂？（ii）随气候变化的CWD衰减涉及哪些时间尺度？CWD集成到SOM分数的速度有多快？如何稳定CWD的衰变产物？腐烂机制与腐殖质形态的空间分布之间有什么联系？（四）腐殖质形态能否作为土壤生物群空间外推的代表。

项目成果

A Fuzzy Logic Based Method for Modeling the Spatial Distribution of Indicators of Decomposition in a High Mountain Environment

• DOI: 10.1657/aaar0015-073
• 发表时间: 2016-11
• 期刊: Arctic, Antarctic, and Alpine Research
• 作者: Niels Hellwig;Kerstin Anschlag;G. Broll

Upscaling the spatial distribution of enchytraeids and humus forms in a high mountain environment on the basis of GIS and fuzzy logic

• DOI: 10.1016/j.ejsobi.2017.01.001
• 发表时间: 2017-03
• 期刊: European Journal of Soil Biology
• 影响因子: 4.2
• 作者: Niels Hellwig;U. Graefe;Dylan Tatti;G. Sartori;Kerstin Anschlag;A. Beylich;J. Gobat;G. Broll

Vegetation-based bioindication of humus forms in coniferous mountain forests

• DOI: 10.1007/s11629-016-4290-y
• 发表时间: 2017-03
• 期刊: Journal of Mountain Science
• 影响因子: 2.5
• 作者: Kerstin Anschlag;Dylan Tatti;Niels Hellwig;G. Sartori;J. Gobat;G. Broll