Orchard meadows, a traditional agroforestry system in Switzerland combining the dual use fruit and fodder production, are declining, even though farmland managed under agri-environmental schemes (AES) has been expanding. Despite increasing interest research for developing sustainable agriculture, it is poorly understood how subsidies contribute to maintenance of trees on agricultural land promo...

Biological nitrogen fixation (BNF), a function performed by diazotrophic microbes, plays an essential role in (N) bioavailability terrestrial ecosystems. However, little is known about the effects of meadow degradation on soil BNF and communities alpine meadows. We investigated changes their potential drivers meadows along gradient Tibetan Plateau (non-degraded, lightly degraded, moderately sev...

Examination of variation in ecological communities can lead to an understanding of the forces that structure communities, the consequences of change at the ecosystem level, and the relevant scales involved. This study details spatial and seasonal variability in the composition of nitrogen-fixing and cyanobacterial (i.e., oxygenic photosynthetic) functional groups of a benthic, hypersaline micro...

the study was carried out in the ilam oak forest that is located in the west part of iran. the objective of this research was to determine the plant ecological groups and site classification in this region. data were collected from 117 sample plots using the systematic-random sampling method. the size of sampling plots was 20 m?20 m for the tree and shrub species and 1.5 m ?1.5 m for herbaceous...

As of 2012, there were an estimated 14,243 ha of seagrass meadows in Tampa Bay. Seagrass meadows are the dominant blue carbon habitat in Tampa Bay, compared to the estimated 6,127 ha of mangroves and 1,779 ha of saltmarsh. However, and unlike mangroves and saltmarshes, the entirety of carbon fixation, growth and decay in seagrass meadows occurs in a submerged environment. While rates of primary...