The files include: 1, raw cover data for control and nutrient addition by NPK in year 4 and year 14 at 72 NutNet sites. 2, raw cover data for sites have five blocks in year 4. 3, sites with geolocation and experimental years used, 4. site drought index, 5. site herbivores. 6, site productivity. 7, site species pool, 8. minimum area and distance among blocks, and generated dataset of 9. effects of nutrient addition on diversity across scales.Methods for estimating cover and species richness, definitions and quantification for site covariates (i.e. site drought index, site herbivores, site productivity, site species pool, and minimum area and distance among blocks) can be found in the method section of the main text. Please access the main text through this link: https://www.biorxiv.org/content/10.1101/2024.03.27.586835v4.

The files include: 1, raw cover data for control and nutrient addition by NPK in year 4 and year 14 at 72 NutNet sites. 2, raw cover data for sites have five blocks in year 4. 3, sites with geolocation and experimental years used, 4. site drought index, 5. site herbivores. 6, site productivity. 7, site species pool, 8. minimum area and distance among blocks, and generated dataset of 9. effects of nutrient addition on diversity across scales.Methods for estimating cover and species richness, definitions and quantification for site covariates (i.e. site drought index, site herbivores, site productivity, site species pool, and minimum area and distance among blocks) can be found in the method section of the main text. Please access the main text through this link: https://www.biorxiv.org/content/10.1101/2024.03.27.586835v4.

The files include: 1, raw cover data for control and NPK in year 4 and year 14 after nutrient addition treatment at 72 NutNet sites. 2, raw cover data for sites have five blocks in year 4. 3, sites with geolocation and experimental years used, 4. site drought index, 5. site herbivores. 6, site productivity. 7, site species pool, 8. minimum area and distance among blocks, and generated dataset of 9. effects of nutrient addition on diversity across scales.Methods for estimating cover and species richness, definitions and quantification for site covariates (i.e. site drought index, site herbivores, site productivity, site species pool, and minimum area and distance among blocks) can be found in the method section of the main text. Please access the main text through this link: https://www.biorxiv.org/content/10.1101/2024.03.27.586835v2.

The files include 1, cover data for control and NPK at NutNet sites with more than 3 blocks at year 4, 10, and 14 after nutrient addition. 2, cover data for control and NPK at NutNet sites with more than 3 blocks at year 4. 3, site drought index. 4, site herbivores. 5, site productivity. 6, site species pool. Methods for estimating cover and species richness, definitions and quantification for site covariates (i.e. site drought index, site herbivores, site productivity, site species pool) can be found in the method section of the main text. Please access the main text through this link: https://www.biorxiv.org/content/10.1101/2024.03.27.586835v2.

The files contain data from ten long-term NutNet (ranging from 10 to 15 years). That is, year 1 to year 15 cover and biomass data under ambient and nutrient addition (by NPK) conditions. The files also contain species-level leaf traits, that is, leaf C, leaf N, leaf P, leaf K, SLA, and the integrated trait (slow-fast leaf economic spectrum) based on 102 plant species under ambient and nutrient addition conditions at 10 NutNet sites. Furthermore, growing season at these 10 NutNet sites are included. Precipitation and potential evapotranspiration used to calculate the standardized precipitation–evapotranspiration index (SPEI) were downloaded from https://crudata.uea.ac.uk/cru/data/hrg/cru_ts_4.07/.

The files contain data from ten long-term NutNet (ranging from 10 to 15 years). That is, year 1 to year 15 cover and biomass data under ambient and nutrient addition (by NPK) conditions. The files also contain species-level leaf traits, that is, leaf C, leaf N, leaf P, leaf K, SLA, and the integrated trait (slow-fast leaf economic spectrum) based on 102 plant species under ambient and nutrient addition conditions at 10 NutNet sites. Furthermore, growing season at these 10 NutNet sites are included. Precipitation and potential evapotranspiration used to calculate the standardized precipitation–evapotranspiration index (SPEI) were downloaded from https://crudata.uea.ac.uk/cru/data/hrg/cru_ts_4.07/.

The files include 1, cover data for control and NPK at NutNet sites with more than 3 blocks at year 4, 10, and 14 after nutrient addition. 2, cover data for control and NPK at NutNet sites with more than 3 blocks at year 4. 3, site drought intensity. 4, site herbivores. 5, site productivity. 6, site species pool.Methods for estimating cover and species richness, definitions and quantification for site covariates (i.e. site drought index, site herbivores, site productivity, site species pool) can be found in the method section of the main text. Please access the main text through this link: https://www.biorxiv.org/content/10.1101/2024.03.27.586835v2.

The files contain cover and biomass data under ambient and nutrient addition (by NPK; up to 15 years) conditions at 55 NutNet sites (https://nutnet.org/), geolocations and growing seasons, and precipitation and potential evapotranspiration (1901 - 2021) at these 55 sites. Precipitation and potential evapotranspiration are used to calculate the standardized precipitation–evapotranspiration index (SPEI), these data were downloaded from https://crudata.uea.ac.uk/cru/data/hrg/cru_ts_4.06/.

The files contain cover and biomass data under ambient and nutrient addition (by NPK; up to 15 years) conditions at 55 NutNet sites (https://nutnet.org/) and precipitation and potential evapotranspiration (1901 - 2021) at these 55 sites. Precipitation and potential evapotranspiration are used to calculate the standardized precipitation–evapotranspiration index (SPEI), these data were downloaded from https://crudata.uea.ac.uk/cru/data/hrg/cru_ts_4.06/.

The files contain cover and biomass data under ambient and nutrient addition (by NPK; up to 15 years) conditions at 55 NutNet sites (https://nutnet.org/), geolocations and growing seasons, and precipitation and potential evapotranspiration (1901 - 2021) at these 55 sites. Precipitation and potential evapotranspiration are used to calculate the standardized precipitation–evapotranspiration index (SPEI), these data were downloaded from https://crudata.uea.ac.uk/cru/data/hrg/cru_ts_4.06/.