In this way they partly counterbalance the gradual decrease of P in the soil.Jordi SardansCSICJosep PeñuelasCSICGlobal Ecology and BiogeographySardans, J., and Penuelas, J.: Trees increase their P: N ratio with size, Global Ecology and Biogeography, 24, 147-156, doi:10.1111/geb.12231, ...
Trees increase their P:N ratio with size 来自 掌桥科研 喜欢 0 阅读量: 7 作者: JPJ Sardans 摘要: AimPhosphorus (P) tends to become limiting in ageing terrestrial ecosystems, and its resorption efficiency is higher than for other elements such as nitrogen (N). We thus hypothesized that ...
times more N than their female counterparts. This coincides with the annual increment of branches, measured as a possible trade-off for costs of reproduction: female branches needed 2 years less to reach a diameter of 2 cm. We conclude that full fruit set of females would give males a heavy...
The integration of those distributed sources comes with many challenges that increase the complexity of the grid and introduce a lot of uncertainty. On the other hand, advances in the rapidly evolving field of smart grids and the increased functionalities they bring, e.g. installation of smart ...
Tree-based models are increasingly popular due to their ability to identify complex relationships that are beyond the scope of parametric models. Survival tree methods adapt these models to allow for the analysis of censored outcomes, which often appear in medical data. We present a new Optimal Su...
edulis). Similar trends were observed for the bole and roots of P. edulis. In contrast, overall NSC in the roots of J. monosperma had little change with water stress (slope = 0.013, P = 0.3.). However, roots saw a relatively strong increase in sugar concentrations (slope ...
The baobab trees (genus Adansonia) have attracted tremendous attention because of their striking shape and distinctive relationships with fauna1. These spectacular trees have also influenced human culture, inspiring innumerable arts, folklore and traditi
In this section, we bound the ratio Ecc(T)eccT(u) for any tree T and leaf u. We further characterize the trees for which the bounds are tight. Theorem 5 Let T be a tree on n≥8 vertices. Let k and i be integers with 0≤i≤2k and 2n−1=k2+i. For any u∈L(T), we ha...
Some species synthesize larger amounts of polyprenols, which probably increase the plant’s ability to mitigate salt stress. Salt stress does not caus
The water status of transpiring tree crowns depends on a hydraulic continuum from the soil matrix around roots to the sub-stomatal cavity of leaves, with a multitude of hydraulic resistances along this path. Although the stem xylem path may not be the most critical of these resistances, it ha...