Phototrophic community succession as driver of mineral weathering and soil formation along chronosequences in maritime Antarctica

光养群落演替是南极洲海洋矿物风化和土壤形成的驱动因素

• 批准号: 238150183
• 负责人: Dr. Jens Boy
• 金额: --
• 依托单位: Professur für Bodenkunde und Bodenschutz
• 依托单位国家: 德国
• 项目类别: Infrastructure Priority Programmes
• 财政年份: 2013
• 资助国家: 德国
• 起止时间: 2012-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/238150183?language=en
• 关键词: Phototrophic; community; succession; driver; mineral

Weathering is of utmost importance for the support of life on earth, as it turns bedrock into soil and delivers nutrients to organisms. Vice versa, life itself is heavily engaged in mineral weathering by investment of photosynthates into weathering processes. We aim at investigating the processes and thresholds in biogenic weathering as a function of photoautotrophic community succession from microalgae/cyanobacteria to lichen-dominated stages towards the appearance of higher plants along soil chronosequences built by global-change induced glacier retreat in maritime Antarctica. For this, along the chronosequences weathering agents, organic carbon allocation to the soil, mineral in-situ composition and biogenic weathering on surfaces of introduced and defined, rock forming minerals will be assessed and related to phototrophic community structure. We expect to contribute to the understanding if and how life alters its own habitat in an extreme terrestrial ecosystem, and how this biogeosystem may respond to changes induced by Global Change in an increasingly warmer Antarctica.

风化对于地球上生命的维持至关重要，因为它将基岩变成土壤并向生物体提供营养。反之亦然，生命本身通过将光合产物投入到风化过程中而大量参与矿物风化。我们的目的是研究生物风化的过程和阈值，作为从微藻/蓝藻到地衣主导阶段的光合自养群落演替的函数，直至沿着由全球变化引起的南极洲海洋冰川退缩所建立的土壤时间序列出现高等植物。为此，将沿着风化剂的时间顺序、土壤中的有机碳分配、矿物原位组成以及引入和定义的造岩矿物表面的生物风化进行评估，并将其与光养群落结构相关联。我们希望有助于了解极端陆地生态系统中生命是否以及如何改变其自身栖息地，以及该生物地质系统如何应对日益变暖的南极洲全球变化引起的变化。

项目成果

Abstracts of papers to be presented at the 11th International Phycological Congress

第11届国际藻类学大会论文摘要

• DOI: 10.2216/0031-8884-56.sp4.1
• 发表时间: 2017
• 期刊: Phycologia
• 影响因子: 1.6
• 作者: Rybalka;Tzvetkova;Friedl
• 通讯作者: Friedl

Desiccation tolerance and growth-temperature requirements of Coccomyxa (Trebouxiophyceae, Chlorophyta) strains from Antarctic biological soil crusts

南极生物土壤结皮球菌门（Trebouxiophyceae、Chlorophyta）菌株的干燥耐受性和生长温度要求

• DOI: 10.1127/algol_stud/2016/0245
• 发表时间: 2016
• 期刊: Algological Studies
• 作者: Borchhardt;Karsten;Gustavs
• 通讯作者: Gustavs

Successional patterns along soil development gradients formed by glacier retreat in the Maritime Antarctic, King George Island

• DOI: 10.1186/s40693-016-0056-8
• 发表时间: 2016-01-01
• 期刊: Revista chilena de historia natural
• 影响因子: 2.2
• 作者: Boy, Jens;Godoy, Roberto;Guggenberger, Georg
• 通讯作者: Guggenberger, Georg

Keynote and Oral Papers

主题演讲和口头论文

• DOI: 10.1080/09670262.2015.1069489
• 发表时间: 2015
• 期刊: European Journal of Phycology
• 影响因子: 2.4
• 作者: Rybalka;Daniel;Friedl
• 通讯作者: Friedl

Polar Systems under Pressure : 27th International Polar Conference , Rostock, 25 - 29 March 2018 , German Society for Polar Research

压力下的极地系统：第 27 届国际极地会议，罗斯托克，2018 年 3 月 25 日至 29 日，德国极地研究学会

• DOI: 10.2312/bzpm_0716_2018
• 发表时间: 2018
• 作者: N. Rybalka;J. Boy;R. Godoy;A. Tzvetkova;C. Roos;A. Noll;T. Friedl
• 通讯作者: T. Friedl