Here, we provide a list of the files included in this ZENODO project. 

- File "readme.txt". It's this file. It contains explanation of the other files present in this dataset, the variables and their units. 


- File "BIOMASS.csv". This is a csv file that contains data on plant growth from a greenhouse trial. Each line corresponds to one plant individual. The file contains the following columns:
	SOIL: it is a one-letter code to designate each of the soils used in the greenhouse trial. There are three different letters: "L" (limestone-derived soil); "G" (granodiorite-derived soil); "S" (serpentinite-derived soil). 
	BLOCK: it is a number from 1 to 6 which designates each one of the cultivation trais where we grew the plants. 
	POP: it is a two-letter code which indicates the population which the individual belongs to.
	R_DW: root dry weight (expressed in grams).
	S_DW: shoot dry weight (expressed in grams).
	DW: total plant dry weight (sum of R_DW and S_DW, expressed in grams).
	RSR: root:shoot biomass ratio.
	

- File "SURVIVAL.csv". This is a csv file that contains data on plant survival in a greenhouse trial. Each line corresponds to one population in one cultivation tray. The file contains the following columns:
	SOIL: it is a one-letter code to designate each of the soils used in the greenhouse trial. There are three different letters: "L" (limestone-derived soil); "G" (granodiorite-derived soil); "S" (serpentinite-derived soil). 
	POP: it is a two-letter code which indicates the plant population.
	counts: number of plants of that population that survived in that soil.
	

- File "SOILS.csv". This file presents the soil data. Each line represents one soil sample. This file contains the following columns:
	POP: it is a two-letter code which indicates the population where the soil sample was collected.
	REP: it is a number that identifies different soil samples collected from the same site.
	Sand_T: it is the percentage of sand in the soil sample, reported in % of soil mass.
	Silt_T: it is the percentage of silt in the soil sample, reported in % of soil mass.
	Clay_T: it is the percentage of clay in the soil sample, reported in % of soil mass.
	pHH2O: is the pH of the soil sample, measured in water with a 1:5 (w:v) ratio.
	pHKCl: is the pH of the soil sample, measured in a saturated KCl solution with a 1:5 (w:v) ratio.
	Ctotal: is the total carbon concentration in the sample, reported in % of mass. 
	Ntotal: is the total nitrogen concentration in the sample, reported in % of mass.
	P_Olsen: is the soil available phosphorus (Olsen's P) in the sample, reported in mg kg-1.
	H_E: is the concentration of exchangeagle protons in the soil, reported in cmolc kg-1.
	Ca_E: is the concentration of exchangeable calcium in the soil, reported in cmolc kg-1.
	Mg_E: is the concentration of exchangeable magnesium in the soil, reported in cmolc kg-1. 
	Na_E: is the concentration of exchangeable sodium in the soil, reported in cmolc kg-1.
	K_E:  is the concentration of exchangeable potassium in the soil, reported in cmolc kg-1. 
	Al_E:  is the concentration of exchangeable aluminium in the soil, reported in cmolc kg-1. 
	CEC: is the cation exchange capacity of the soil, determined as the sum of cations and reported in cmolc kg-1. 
	CaMg: is the molar ratio of exchangeable Ca over exchangeable Mg.
	Ca_T: is the pseudototal calcium concentration in the sample, reported in mg kg-1.
	Mg_T: is the pseudototal magnesium concentration in the sample, reported in mg kg-1.
	Na_T: is the pseudototal sodium concentration in the sample, reported in mg kg-1.
	K_T: is the pseudototal potassium concentration in the sample, reported in mg kg-1.
	Co_T: is the pseudototal cobalt concentration in the sample, reported in mg kg-1.
	Cr_T: is the pseudototal chromium concentration in the sample, reported in mg kg-1.
	Cu_T: is the pseudototal copper concentration in the sample, reported in mg kg-1.
	Mn_T: is the pseudototal manganese concentration in the sample, reported in mg kg-1.
	Ni_T: is the pseudototal nickel concentration in the sample, reported in mg kg-1.
	Pb_T: is the pseudototal lead concentration in the sample, reported in mg kg-1.
	Zn_T: is the pseudototal zinc concentration in the sample, reported in mg kg-1.	
	Ni_DTPA: is the concentration of DTPA-extractable nickel in the soil, reported in mg kg-1.

	
- File "PLANT_COMPOSITION.csv". This file presents the plant data. Each line represents one composite sample mixing the leaves of 2-3 plant individuals. Each column contains the following information:
	SOIL: it is a one-letter code to designate each of the soils used in the greenhouse trial. There are three different letters: "L" (limestone-derived soil); "G" (granodiorite-derived soil); "S" (serpentinite-derived soil). 
	BLOCK: it is a number from 1 to 6 which designates each one of the cultivation trais where we grew the plants. 
	POP: it is a two-letter code which indicates the population which the individual belongs to.
	REP_POP: it is an integer to identify the different replicates of each population in each block. 
	C: is the total carbon concentration in the leaf sample, reported in % of mass. 
	N: is the total nitrogen concentration in the sample, reported in % of mass.
	P: is the pseudototal phosphorus concentration in the sample, reported in mg kg-1.
	K: is the pseudototal potassium concentration in the leaf sample, reported in mg kg-1.
	Ca: is the pseudototal calcium concentration in the leaf sample, reported in mg kg-1.
	Mg: is the pseudototal magnesium concentration in the sample, reported in mg kg-1.
	CaMg: is the ratio of pseudototal calcium concentration over pseudototal magnesium concentration in the sample.
	Na: is the pseudototal sodium concentration in the sample, reported in mg kg-1.
	Fe: is the pseudototal iron concentration in the sample, reported in mg kg-1.
	Mn: is the pseudototal manganese concentration in the sample, reported in mg kg-1.
	Ni: is the pseudototal nickel concentration in the sample, reported in mg kg-1.
	Zn: is the pseudototal zinc concentration in the sample, reported in mg kg-1.