Question

natural vegetation graphical analysis of 21 century ?

Answer 1

it has different types of varieties

Answer 2

Semi-natural open habitats in north-western Europe are highly prioritized for conservation, and optimization of management planning is essential for continued protection of their diversity. We evaluate whether current management practices, which consist mainly of summer grazing by livestock, are sufficient to maintain plant species composition in a stable state across semi-natural areas in Denmark, or if shifts in functional composition are taking place. Further, we investigate important drivers of any ongoing changes through trait differences between winner and loser species.Using a data set of 6513 annually inventoried (2004–2010) vegetation plots from 202 semi-natural NATURA 2000 protected areas, we assessed changes in cover of all plant species and, using boosted regression trees, whether winners and losers differ in regard to autecological characteristics and traits.There were consistent changes in cover for 123 out of 603 species across the 6-year study period, with more species losing than winning (78 vs. 45). Winner and loser species were strongly differentiated by competition-related traits, but traits related to soil nutrients and soil moisture also had some importance. Generally, our results indicate a trend towards taller and more competitive species.