[{"name":"manzoni-2021-salix-1","title":"Salix biomass and nitrogen content measured in a pot experiment, Uppsala, Sweden, 2018\u2060\u200a\u2060\u200a\u2013\u200a\u20602019","summary":"The dataset contains biomass and nitrogen content data of two Salix species (S. dasyclados Wimm. var. \u2018Loden\u2019, and S. schwerinii E. Wolf. x S. viminalis L. var. \u2018Tora\u2019), grown in a pot experiment to assess the effects of watering frequency, nutrient availability, and plant diversity level.\r\n\r\nThe data was collected to test the hypotheses that: i) lower nutrient and more intermittent water availability decrease biomass while increasing allocation to roots, allowing to save soil water and reduce water stress, and ii) higher diversity promotes efficient resource acquisition, especially under lower nutrient and more intermittent water availability, resulting in higher diversity effects. The first hypothesis was confirmed by the data analysis, whereas the second hypothesis was not confirmed.\r\n\r\nThe data was collected in a pot experiment at the Swedish University of Agricultural Sciences, Uppsala, Sweden. Plants were grown for two years (2018\u2060\u200a\u2060\u200a\u2013\u200a\u20602019) in a full factorial design with six replicate pots per treatment.","citations":"Lindh M, Hoeber S, Weih M, Manzoni S (2022) Interactions of nutrient and water availability control growth and diversity effects in a Salix two-species mixture. Ecohydrology, e2401. doi:10.1002\/eco.2401","comments":"The pot experiment was designed to assess the effects of watering frequency (twice a week vs. once a week for set total water volume), nutrient availability (low vs. high fertilization), and plant diversity level (monoculture vs. mixture of the two species).\r\n\r\nThe data was collected in a pot experiment in a full factorial design with six replicate pots per treatment (each planted with six cuttings). Biomass was measured by weighing roots, stems, and leaves after drying. Nitrogen contents were measured in an external laboratory. Specific leaf area was estimated by weighing and scanning leaves. All data are presented on a pot basis (summed biomass or average nitrogen contents and specific leaf area).\r\n\r\nMeteorological and soil moisture data, as well as additional plant morphological data are described in the related publication and available upon request.","category":"Terrestrial","subcategory":"Ecosystems","keywords":"Drought; Nutrient limitation; Plant diversity; Willow; Plant allocation; Nitrogen content","scientist":"Stefano Manzoni, Magnus Lindh, Stefanie Hoeber, Martin Weih","firstname":"Stefano","lastname":"Manzoni","address":"Department of Physical Geography; Stockholm University","postalcode":"SE-106 91","city":"Stockholm","province":"","country":"Sweden","parameters":"Earth science > Biosphere > Vegetation > Biomass","location":"Continent > Europe > Northern Europe > Scandinavia > Sweden","progress":"Completed","language":"English","project":"Formas Research Grant 'Improving agricultural productivity and sustainability with crop mixtures: willow plantations as a model system' (Formas 2016-00998). Project leader: Stefano Manzoni.","publisher":"Bolin Centre Database","version":"1","constrains":"","access":""}]