Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.flora.2016.02.012 |
Photosynthetic characteristics and their spatial variance on biological soil crusts covering initial soils of post-mining sites in Lower Lusatia, NE Germany | |
Gypser, Stella1; Herppich, Werner B.2; Fischer, Thomas3; Lange, Philipp4; Veste, Maik1,5 | |
通讯作者 | Gypser, Stella |
来源期刊 | FLORA
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ISSN | 0367-2530 |
EISSN | 1618-0585 |
出版年 | 2016 |
卷号 | 220页码:103-116 |
英文摘要 | Following surface disturbance, quaternary sands are the basic substrate for soil development in the Lusatian reclamation area. These substrates mostly contain few organic matter and, hence, are nutrient poor. Accumulation of soil carbon is, an important factor for ecosystem development, where biological soil crusts initially influence soil processes and promote ecosystem succession. The compositional structures of biological soil crusts at various developmental stages and their photosynthetic properties were investigated on two former open-cast lignite sites, currently under reclamation, an artificial sand dune in Welzow Sud, and a forest plantation in Schlabendorf Sud (Brandenburg, Germany). As development of biological soil crusts progressed, their contents of organic carbon and total chlorophyll increased. The ratio of these parameters, however, varied with the relative contribution of lichens and mosses in particular. Also maximum photochemical efficiency, net photosynthesis and respiration increased with crustal development. An additional evaluation of NDVI and chlorophyll fluorescence images showed that especially moss-dominated biocrusts had higher photosynthetic capacity compared to green algae-dominated biocrusts or soil lichens, so the photosynthetic capacity showed to be highly species-specific. The ratio of gross photosynthesis to respiration indicated a higher ecological efficiency of biocrusts dominated by green algae than of lichen-dominated biocrusts. The occurrence of soil lichens reduced net CO2 fixation and increased CO2 release due to the enhanced mycobiontic respiration. During crustal succession, the rise of photosynthesis-related parameters is not necessarily linear as a result of the highly heterogenic distribution of the different crustal organisms between biocrusts of similar developmental stages as well as between those growing at the two study sites. Therefore, the evaluation of relevant ecophysiological parameters highlighted that not all biocrust-forming organisms similarly contribute to the ecophysiological behavior of biological soil crusts. Nevertheless, the occurrence of the biological soil crusts promoted soil formation and accumulation of soil carbon in initial soils. (C) 2016 Elsevier GmbH. All rights reserved. |
英文关键词 | Biocrusts Spatial formation Chlorophyll fluorescence NDVI CO2 exchange Initial ecosystem development |
类型 | Article |
语种 | 英语 |
国家 | Germany |
收录类别 | SCI-E |
WOS记录号 | WOS:000375168900011 |
WOS关键词 | WESTERN NEGEV-DESERT ; BLUE-GREEN-ALGAE ; CHLOROPHYLL FLUORESCENCE ; SAND DUNES ; SUCCESSIONAL STAGES ; WATER-CONTENT ; CO2 EXCHANGE ; TEMPERATURE RESPONSES ; SPECTRAL REFLECTANCE ; CRYPTOGAMIC CRUSTS |
WOS类目 | Plant Sciences ; Ecology |
WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/192951 |
作者单位 | 1.Brandenburg Univ Technol Cottbus Senftenberg, Fac Environm Sci, Chair Soil Protect & Recultivat, Konrad Wachsmann Allee 6, D-03046 Cottbus, Germany; 2.Leibniz Inst Agr Engn Potsdam Bornim EV, Dept Hort Engn, Max Eyth Allee 100, D-14469 Potsdam, Germany; 3.Brandenburg Univ Technol Cottbus Senftenberg, Cent Analyt Lab, Konrad Wachsmann Allee 6, D-03046 Cottbus, Germany; 4.Tech Univ Dresden, Dept Chem & Food Chem, Mommsenstr 4, D-01062 Dresden, Germany; 5.Univ Hohenheim, Inst Bot Expt Ecol, Garbenstr 30, D-70599 Stuttgart, Germany |
推荐引用方式 GB/T 7714 | Gypser, Stella,Herppich, Werner B.,Fischer, Thomas,et al. Photosynthetic characteristics and their spatial variance on biological soil crusts covering initial soils of post-mining sites in Lower Lusatia, NE Germany[J],2016,220:103-116. |
APA | Gypser, Stella,Herppich, Werner B.,Fischer, Thomas,Lange, Philipp,&Veste, Maik.(2016).Photosynthetic characteristics and their spatial variance on biological soil crusts covering initial soils of post-mining sites in Lower Lusatia, NE Germany.FLORA,220,103-116. |
MLA | Gypser, Stella,et al."Photosynthetic characteristics and their spatial variance on biological soil crusts covering initial soils of post-mining sites in Lower Lusatia, NE Germany".FLORA 220(2016):103-116. |
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