Zobrazeno 1 - 10
of 123
pro vyhledávání: '"Lars O Hedin"'
Publikováno v:
PLoS ONE, Vol 7, Iss 8, p e42045 (2012)
Nutrient limitation to net primary production (NPP) displays a diversity of patterns as ecosystems develop over a range of timescales. For example, some ecosystems transition from N limitation on young soils to P limitation on geologically old soils,
Externí odkaz:
https://doaj.org/article/d4d83dd56b464c61b6502cd4c3514f6a
Publikováno v:
PLoS ONE, Vol 7, Iss 3, p e33710 (2012)
Biological di-nitrogen fixation (N(2)) is the dominant natural source of new nitrogen to land ecosystems. Phosphorus (P) is thought to limit N(2) fixation in many tropical soils, yet both molybdenum (Mo) and P are crucial for the nitrogenase reaction
Externí odkaz:
https://doaj.org/article/0bc61d69f0624a81bda377950dad519d
Autor:
Jennifer H. Levy-Varon, Sarah A. Batterman, David Medvigy, Xiangtao Xu, Jefferson S. Hall, Michiel van Breugel, Lars O. Hedin
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-8 (2019)
The contribution of symbiotic dinitrogen fixation to the forest carbon sink could change throughout forest succession. Here the authors model nitrogen cycling and light competition between trees based on data from Panamanian forest plots, showing tha
Externí odkaz:
https://doaj.org/article/d492842f081a447eb3c9daa474ccd55e
Publikováno v:
Nature Geoscience. 15:375-381
Publikováno v:
EcologyREFERENCES. 103(11)
Nitrogen (N) and phosphorus (P) are crucial nutrients for regulating plant growth. The classic growth rate hypothesis (GRH) proposes that fast-growing organisms have lower N:P ratios, and it is promising to predict net primary productivity (NPP) usin
Publikováno v:
Ecosphere, Vol 4, Iss 5, Pp 1-12 (2013)
Edge effects are a major concern in the study and conservation of forest patches. The traditional perspective, derived from patches formed by fragmentation, considers forest edges as intermediates in a gradient between interior and exterior condition
Externí odkaz:
https://doaj.org/article/a6940681d4024cff849d08589ad7318e
Autor:
Lars O. Hedin, Jennifer H. Levy-Varon, David Medvigy, Michiel van Breugel, Jefferson S. Hall, Xiangtao Xu, Sarah A. Batterman
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-8 (2019)
Nature Communications
Nature Communications
A major uncertainty in the land carbon cycle is whether symbiotic nitrogen fixation acts to enhance the tropical forest carbon sink. Nitrogen-fixing trees can supply vital quantities of the growth-limiting nutrient nitrogen, but the extent to which t
Autor:
Joshua P. Schimel, Colin Averill, Rachel Wooliver, Jennifer A. Schweitzer, Joseph K. Bailey, Adam F. A. Pellegrini, Bonnie G. Waring, Benjamin Z. Houlton, Lars O. Hedin
Publikováno v:
Functional Ecology. 33:1818-1829
Our understanding of terrestrial nitrogen (N) cycling is changing as new processes are uncovered, including the sources, turnover and losses of N from ecosystems. We integrate recent insights into an updated N‐cycling framework and discuss how a ne
Autor:
Lars O. Hedin, William J. Bond, Lindsey Gillson, Michael D. Cramer, Anastas Belev, M.T. Hoffman, Simon C. Power
Publikováno v:
Ecography. 42:717-729
Autor:
David J. Beerling, Jefferson S. Hall, Jonathan R. Leake, Sarah A. Batterman, Lars O. Hedin, Michiel van Breugel, Dimitar Z. Epihov, Kristin Saltonstall
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America
Significance Symbiotic dinitrogen (N2)-fixing trees fulfill a critical function in tropical forests by bringing in new nitrogen, yet it remains unclear how they overcome constraints by highly weathered, nutrient-poor tropical soils. We advance forest