Ecological significance of plant biomass turnover

植物物种的分布在很大程度上取决于它们对不同生境环境条件的适应能力，如养分、水分和光照的可用性。在这方面，植物获得这些资源的能力是一个重要的、已被充分研究的特征。同样重要但研究较少的是工厂避免一旦获得的资源损失的能力，即其周转率。资源获取与生长速度、资源损失与叶和根的寿命密切相关。生长速度和器官寿命之间通常存在相反的关系：快速生长的植物通常长出寿命较短的叶子和根。该项目涉及与周转有关的生态和进化机制的基本问题，但对于理解土地利用和气候变化的后果也具有潜在的重要意义。

The distribution of plant species is largely determined by their ability to cope with the environmental conditions in different habitats, such as the availability of nutrients, water and light. A plant's ability to acquire these resources is in this respect an important and well-studied trait. Equally important, but less studied, is the plant's ability to avoid losses of the once acquired resources, i.e., its turnover rate. Resource acquisition is closely related to growth rate, resource loss with life spans of leaves and roots. There is generally a reverse relationship between growth rate and organ life span: fast-growing plants usually produce short-lived leaves and roots. This projects concerns basic questions about ecological and evolutionary mechanisms with respect to turnover, but it is also potentially important for understanding the consequences of changes in land use and climate.