Lang, F; Bauhus, J; Frossard, E; George, E; Kaiser, K; Kaupenjohann, M; Krüger, J; Matzner, E; Polle, A; Prietzel , J; Rennenberg, H; Wellbrock, N: Phosphorus in forest ecosystems: New insights from an ecosystem nutrition perspective, Journal of Plant Nutrition and Soil Science, 179, 129-135 (2016), doi:10.1002/jpln.201500541
Abstract:
Phosphorus is one of the major limiting factors of primary productivity in terrestrial ecosystems and, thus, the P demand of plants might be among the most important drivers of soil and ecosystem development. The P cycling in forest ecosystems seems an ideal example to illustrate the concept of ecosystem nutrition. Ecosystem nutrition combines and extents the traditional concepts of nutrient cycling and ecosystem ecology. The major extension is to consider also the loading and unloading of nutrient cycles and the impact of nutrient acquiring and recycling processes on overall ecosystem properties. Ecosystem nutrition aims to integrate nutrient related aspects at different scales and in different ecosystem compartments including all processes, interactions and feedbacks associated with the nutrition of an ecosystem. We review numerous previous studies dealing with P nutrition from this ecosystemnutrition perspective. The available information contributes to the description of basic ecosystem characteristics such as emergence, hierarchy, and robustness. In result, we were able to refine Odum’s hypothesis on P nutrition strategies along ecosystem succession to substrate related ecosystem nutrition and development.We hypothesize that at sites rich in mineral-bound P, plant and microbial communities tend to introduce P from primary minerals into the biogeochemical P cycle (acquiring systems), and hence the tightness of the P cycle is ofminor relevance for ecosystem functioning. In contrast, tight P recycling is a crucial emergent property of forest ecosystems established at sites poor in mineral bound P (recycling systems). We conclude that the integration of knowledge on nutrient cycling, soil science, and ecosystemecology into holistic ecosystemnutrition will provide an entirely new view on soil–plant–microbe interactions.

Key words: ecosystem properties / P recycling / P nutrition strategy / forest nutrition / P acquiring

Aktuelle Termine


BayCEER-Kolloquium:
Do. 21.06.2018 aktuell
The tangled evolutionary history of plants and fungi
Mo. 25.06.2018
Öffentliche Vorträge im Rahmen der Besetzung der Professur "Sportökologie"
Do. 28.06.2018
From the field to the lab to integrated risk assessment of vector-borne pathogens
Ökologisch-Botanischer Garten:
Mi. 27.06.2018
Harmlos bis tödlich: Krankheiten der Bäume
Workshop:
Mi. 27.06.2018
GFBio Roadshow – Research Data Management for scientists, step by step (German Federation for Biological Data)
Wetter Versuchsflächen
Luftdruck (356m): 971.5 hPa
Lufttemperatur: 13.8 °C
Niederschlag: 0.0 mm/24h
Sonnenschein: <1 h/d
Wind (Höhe 17m): 5.1 km/h
Wind (Max.): 12.2 km/h
Windrichtung: S

...mehr
Globalstrahlung: 78 W/m²
Lufttemperatur: 15.8 °C
Niederschlag: 0.0 mm/24h
Sonnenschein: <1 h/d
Wind (Höhe 32m): 6.2 km/h
Wind (Max.): 10.2 km/h

...mehr