@article{WeithmannLinkBanzragchetal.2022,
  author    = {Weithmann, Greta and Link, Roman M. and Banzragch, Bat-Enerel and W{\"u}rzberg, Laura and Leuschner, Christoph and Schuldt, Bernhard},
  title     = {Soil water availability and branch age explain variability in xylem safety of European beech in Central Europe},
  series = {Oecologia},
  volume    = {198},
  journal   = {Oecologia},
  number    = {3},
  doi       = {10.1007/s00442-022-05124-9},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-324228},
  pages     = {629-644},
  year      = {2022},
  abstract  = {Xylem embolism resistance has been identified as a key trait with a causal relation to drought-induced tree mortality, but not much is known about its intra-specific trait variability (ITV) in dependence on environmental variation. We measured xylem safety and efficiency in 300 European beech (Fagus sylvatica L.) trees across 30 sites in Central Europe, covering a precipitation reduction from 886 to 522 mm year-1. A broad range of variables that might affect embolism resistance in mature trees, including climatic and soil water availability, competition, and branch age, were examined. The average P50 value varied by up to 1 MPa between sites. Neither climatic aridity nor structural variables had a significant influence on P50. However, P50 was less negative for trees with a higher soil water storage capacity, and positively related to branch age, while specific conductivity (Ks) was not significantly associated with either of these variables. The greatest part of the ITV for xylem safety and efficiency was attributed to random variability within populations. We conclude that the influence of site water availability on P50 and Ks is low in European beech, and that the high degree of within-population variability for P50, partly due to variation in branch age, hampers the identification of a clear environmental signal.},
  subject      = {Bodenwasser},
  language  = {en}
}
@article{RoellRameshaLinketal.2021,
  author    = {R{\"o}ll, Alexander and Ramesha, Mundre N. and Link, Roman M. and Hertel, Dietrich and Schuldt, Bernhard and Patil, Shekhargouda L. and H{\"o}lscher, Dirk},
  title     = {Water availability controls the biomass increment of Melia dubia in South India},
  series = {Forests},
  volume    = {12},
  journal   = {Forests},
  number    = {12},
  issn      = {1999-4907},
  doi       = {10.3390/f12121675},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-250150},
  year      = {2021},
  abstract  = {Farmland tree cultivation is considered an important option for enhancing wood production. In South India, the native leaf-deciduous tree species Melia dubia is popular for short-rotation plantations. Across a rainfall gradient from 420 to 2170 mm year\(^{-1}\), we studied 186 farmland woodlots between one and nine years in age. The objectives were to identify the main factors controlling aboveground biomass (AGB) and growth rates. A power-law growth model predicts an average stand-level AGB of 93.8 Mg ha\(^{-1}\) for nine-year-old woodlots. The resulting average annual AGB increment over the length of the rotation cycle is 10.4 Mg ha\(^{-1}\) year\(^{-1}\), which falls within the range reported for other tropical tree plantations. When expressing the parameters of the growth model as functions of management, climate and soil variables, it explains 65\% of the variance in AGB. The results indicate that water availability is the main driver of the growth of M. dubia. Compared to the effects of water availability, the effects of soil nutrients are 26\% to 60\% smaller. We conclude that because of its high biomass accumulation rates in farm forestry, M. dubia is a promising candidate for short-rotation plantations in South India and beyond.},
  language  = {en}
}