Biocrusts on Central European Inland dunes

Carbon cycling of biological soil crusts mirrors ecological maturity along a Central European inland dune catena Photosynthesis and respiration of biological soil crusts (BSCs) sampled along a mobile inland dune catena were determined to evaluate the applicability of Odum's P/R ratio, determined under controlled conditions, for estimation of ecosystem maturity. The theory is that in …

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Poster presentation at the BIOGEOMON 2017 

Biological soil crusts as drivers for ecosystem structures and functions on reclaimed post-mining sites in Lower Lusatia, Germany Stella Gysper and Maik Veste Surface mining activities are often large-scale disturbances which affect entire landscapes and ecosystem processes. Reclaimed ecosystems undergo long periods of succession for full recovery. These initial soils, consisting of excavated and dumped …

Biocrusts promotes soil microbial communities on the Loess Plateau of China

Moss-dominated biocrusts increase soil microbial abundance and community diversity and improve soil fertility in semi-arid climates on the Loess Plateau of China Various ecological functions of biocrusts are mostly determined by their bacterial and fungal abundance and community diversity, which has not yet been fully investigated. To provide more insights into this issue, we collected …

Development of a model to estimate the annual carbon gain of poplar and black locust

Photosynthetic characteristics and simulation of annual leaf carbon gains of hybrid poplar (Populus nigra L. x P. maximowiczii Henry) and black locust (Robinia pseudoacacia L.) in a temperate agroforestry system A leaf net photosynthesis model is presented driven by light and modulated by temperature and air humidity. From this the seasonal variation of CO2 uptake …

Sida hermaphrodita – a perennial bioenergy crop for marginal lands ?

Effect of nitrogen fertilizer and compost on photosynthesis and growth of Virginia fanpetals (Sida hermaphrodita Rusby) As a perennial bioenergy crop Sida hermaphrodita can play important roles on marginal lands in the near future. In a controlled pot experiments the influence of various compost amounts (10, 20, 30, 50%) und nitrogen fertilizer (100 kg N …

Biocrusts effects on water infiltration and evaporation in the Maowusu Desert, China

Effects of biological soil crusts on water infiltration and evaporation Yanchi Ningxia, Maowusu Desert, China Biological soil crusts serve as a vanguard for improving the ecological environment in arid, semi-arid desertification areas. It is a good indicator of the level of improvement which the local ecological environment is undertaking. In desert areas, water condition is …

Presentation at the Biocrust 3 Workshop in Moab, Utah

Application of chlorophyll fluorescence, CO2 gas exchange and NDVI for the detection of spatial variances of photosynthesis of biological soil crusts on anthropogenic degraded soils Stella Gypser and Maik Veste Degradation of soils and the destruction of vegetation as a result of anthropogenic disturbances affect ecosystem functions and properties worldwide. In Brandenburg (NE Germany) various …

Agroforestry systems and crop production

Agroforestry systems in form of planted hedgerows have a long-term tradition as land-use systems in various European landscapes, primary in Denmark, North Germany and England. Planting of trees and shrubs into agricultural systems have economical benefits as they provide timber and and fuelwood and other products. It is well recognized, that these shelterbelts enhance biodiversity …

New biocrust project on temperate sand dunes

Monitoring of biological soil crusts on degraded soils Soil degradation by human activities can be observed in many regions of the world. In Lusatia (Brandenburg, Germany) many ecosystems are destroyed by open-cast mining activities or affected by former large-scale military activities. The re-establishment of structures and functions in an important for the rehabilitation processes. On …