DOI: 10.5281/zenodo.2609014
title: Elevation modulates the phenotypic responses to light of four co-occurring Pyrenean forest tree species

description: Data on plant water potential for seedlings of four Pyrenean tree species planted along an elevation gradient. The dataset contains three files:


	<strong>Biomass.txt: </strong>Data on plant biomass per fraction (leaf, stem and roots) 4 years after plantation. Included variables:<br>
	- Piso (factor): elevational stage at which the seedling was planted. Two levels: montane (M) or subalpine (S)<br>
	- Luz (factor): whether the seedling was plantes at a gap or in the understory. Two levels: gap (O) or understroy (T)<br>
	- N (numeric): number of plant in that plot<br>
	- Sp (factor): species. Four levels: BEPE (Betula pendula) / PISY (Pinus sylvestris) / PIUN (Pinus uncinata) / ABAL (Abies alba)<br>
	- Planta (factor): code to identify uniquely each plant<br>
	- File (factor): code to identify uniquely each plant<br>
	- GLI (num): Global Light Index, the amount of irradiance that receives each seedling<br>
	- Code (factor): code to identify uniquely each plant<br>
	- PLB (numeric): total plant biomass (g)<br>
	- LFB (numeric): leaf biomass (g)<br>
	- STB (numeric): stem biomass (g)<br>
	- RTB (numeric): root biomass (g)<br>
	- LMF (numeric): leaf mass fraction (LFB/PLB)<br>
	- SMF (numeric): stem mass fraction (STB/PLB)<br>
	- RMF (numeric): root mass fraction (RTB/PLB)<br>
	- SLA (numeric): specific leaf area<br>
	- H (numeric): plant height (mm)<br>
	- D (numeric): plant diameter at root collar (mm)<br>
	- PB2 (numeric): total plant biomass without considering leaves (g)<br>
	- SF2 (numeric): stem mass fraction without considering leaves (STB/PB2)<br>
	- RF2 (numeric): root mass fraction without considering leaves (RTB/PB2)
	<strong>init_biomass.txt:</strong> for biomass at the moment of plantation<br>
	- Piso (factor): elevational stage at which the seedling was planted. Two levels: montane (M) or subalpine (S)<br>
	- N (numeric): number of plant<br>
	- Sp (factor): species. Four levels: BEPE (Betula pendula) / PISY (Pinus sylvestris) / PIUN (Pinus uncinata) / ABAL (Abies alba)<br>
	- Planta (factor): code to identify uniquely each plant<br>
	- File (numeric): code to identify uniquely each plant<br>
	- PB (numeric): total plant biomass (g)<br>
	- LB (numeric): leaf biomass (g)<br>
	- SB (numeric): stem biomass (g)<br>
	- RB (numeric): root biomass (g)
	<strong>WaterPot.txt</strong>: data on plant water potential for seedlings of four Pyrenean tree species planted along an elevation gradient during a period of intense drought<br>
	- Piso (factor): elevational stage at which the seedling was planted. Two levels: montane (M) or subalpine (S)<br>
	- Luz (factor): whether the seedling was plantes at a gap or in the understory. Two levels: gap (O) or understroy (T)<br>
	- N (numeric): number of plant <br>
	- Parcela (factor): identifier ofthe plot<br>
	- Sp (factor): species. Four levels: BEPE (Betula pendula) / PISY (Pinus sylvestris) / PIUN (Pinus uncinata) / ABAL (Abies alba)<br>
	- Estacion (factor): the moment for the measurement. One level: September<br>
	- GLI (numeric): global light index, the ration of total irradiance received by the plant at the moment of plantation<br>
	- WPt (numeric): water potential (bars)