Search results for " abiotic factors"
showing 2 items of 2 documents
Shifts in macroalgal communities in relation to some abiotic factors: a functional group approach
2007
The aim of the present study was to test whether the functional group approach is effective in describing changes in community structure, resulting from exposure to different substratum inclination and levels of organic pollution. The results of this study suggest that the functional group approach could detect changes in community structure as response to some abiotic factors. However, since species response is not always a functional group response, this method is difficult to generalize and a better definition of the functional group model is required.
Soil health through soil disease suppression: Which strategy from descriptors to indicators?
2007
International audience; Soil is a component of primary importance in crop production, even if it is often neglected, or only regarded as a physical support for the growth of plants. However, with the increasing societal concerns for the sustainability of agriculture, soil must be considered as a living system. Its quality results from the multiple interactions among physicochemical and biological components, notably the microbial communities, primordial for soil function. Crops are threatened by soil-borne diseases. These are often difficult to control, because of the “hidden” status of the pathogens and also because of the absence, noxiousness or lack of efficacy of chemical treatments. In…