Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1002/ecy.3218
Volltext Shareable Link
Titel (primär) Increasing effects of chronic nutrient enrichment on plant diversity loss and ecosystem productivity over time
Autor Seabloom, E.W.; Adler, P.B.; Alberti, J.; Biederman, L.; Buckley, Y.M.; Cadotte, M.W.; Collins, S.L.; Dee, L.; Fay, P.A.; Firn, J.; Hagenah, N.; Harpole, W.S. ORCID logo ; Hautier, Y.; Hector, A.; Hobbie, S.E.; Isbell, F.; Knops, J.M.H.; Komatsu, K.J.; Laungani, R.; MacDougall, A.; McCulley, R.L.; Moore, J.L.; Morgan, J.W.; Ohlert, T.; Prober, S.M.; Risch, A.C.; Schuetz, M.; Stevens, C.J.; Borer, E.T.
Quelle Ecology
Erscheinungsjahr 2021
Department iDiv; PHYDIV
Band/Volume 102
Heft 2
Seite von e03218
Sprache englisch
Topic T5 Future Landscapes
Abstract Human activities are enriching many of Earth’s ecosystems with biologically limiting mineral nutrients such as nitrogen (N) and phosphorus (P). In grasslands, this enrichment generally reduces plant diversity and increases productivity. The widely demonstrated positive effect of diversity on productivity suggests a potential negative feedback, whereby nutrient‐induced declines in diversity reduce the initial gains in productivity arising from nutrient enrichment. In addition, plant productivity and diversity can be inhibited by accumulations of dead biomass, which may be altered by nutrient enrichment. Over longer timeframes, nutrient addition may increase soil fertility by increasing soil organic matter and nutrient pools. We examined the effects of 5‐11 years of nutrient addition at 47 grasslands in twelve countries. Nutrient enrichment increased aboveground live biomass and reduced plant diversity at nearly all sites, and these effects became stronger over time. We did not find evidence that nutrient‐induced losses of diversity reduced the positive effects of nutrients on biomass, however nutrient effects on live biomass increased more slowly at sites where litter was also increasing, regardless of plant diversity. This work suggests that short‐term experiments may underestimate the long‐term nutrient enrichment effects on global, grassland ecosystems.
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Seabloom, E.W., Adler, P.B., Alberti, J., Biederman, L., Buckley, Y.M., Cadotte, M.W., Collins, S.L., Dee, L., Fay, P.A., Firn, J., Hagenah, N., Harpole, W.S., Hautier, Y., Hector, A., Hobbie, S.E., Isbell, F., Knops, J.M.H., Komatsu, K.J., Laungani, R., MacDougall, A., McCulley, R.L., Moore, J.L., Morgan, J.W., Ohlert, T., Prober, S.M., Risch, A.C., Schuetz, M., Stevens, C.J., Borer, E.T. (2021):
Increasing effects of chronic nutrient enrichment on plant diversity loss and ecosystem productivity over time
Ecology 102 (2), e03218 10.1002/ecy.3218