DOI: 10.5061/dryad.hhmgqnksm
title: Drought legacy influences plant invasion through plant-soil feedback dependent on the origin and lifespan of conditioning species

description: Alien plant invasion is one of the key factors of global change. Soil
 legacies from previous plant species can affect the alien plants that are
 later introduced. Moreover, it is suggested that drought, as a common
 environmental factor, often influences plant-soil interactions. However,
 little is known about how drought and plant-soil feedback jointly affect
 the growth of subsequent alien and native plants of different lifespans.
 We conducted a two-phase plant-soil feedback experiment. Firstly, we
 conditioned the soil using each of the 32 species (eight native annuals,
 eight native perennials, eight alien annuals and eight alien perennials)
 with or without drought treatment. Thereafter, each of 20 species were
 grown on their conspecific and heterospecific soils to test the various
 soil-legacy effects. Plants grew better in soil with heterospecific
 legacies than with conspecific legacies. The alien and perennial plants
 exhibited superior growth compared to the native and annual plants. Alien
 perennials achieved the relatively best growth in drought-treated soils
 compared to all other plant species. Moreover, perennial plants were less
 negatively affected than annuals when grown on drought-treated soils
 conditioned by native species, particularly by native perennials. Our
 study suggests that alien perennials have an advantage in coping with the
 negative effects of complex soil legacies. This may accelerate the
 invasion process of communities and ecosystems dominated by perennials
 with drought conditions.
description: # Drought legacy influences plant invasion through plant-soil feedback
 dependent on the origin and lifespan of conditioning species We have
 submitted our raw data (**biomass.csv**)，and R script
 (**Biomass_PSF.Rmd**). \## Descriptions \## Code Files All simulations
 were run in R version 4.2.2. \### **Biomass_PSF.Rmd** contains code for
 creating all figures. \## Data \### **biomass.csv** \* *pot_ID_p1* :
 Conditioning-pot identity \* *species* : Latin name of the test plant
 species \* *family* : Family of the test plants \* *origin* : Origin of
 the test plants (Alien or Native) \* *lifespan* : Lifespan of the test
 plants (annual or perennial) \* *drought* : Drought treatment of
 conditioning phase, i.e. the drought legacy (CK or Drought) \* *PSF* :
 Soil-conditioning treatment, i.e. soil conditioned by conspecific (Home)
 or heterospecific (Foreign) species \* *PSF_type* : Soil-conditioning
 treatment, including conspecific (Home) and heterospecific (soil
 conditioned by foreign alien annual (F_Aa), foreign alien perennial
 (F_Ap), foreign native annual (F_Na) or foreign native perennial (F_Np)
 species )* \* *species_p1* : Latin name of the conditioning plant species
 \* *lifespan_p1* : Lifespan of the conditioning plants (annual or
 perennial) \* *origin_p1* : Origin of the conditioning plants (Alien or
 Native) \* *biomass_p1* : The total biomass (g) of conditioning plants \*
 *initial_height* : The initial height (cm) of test plants \* *biomass* :
 The total biomass (g) of test plants \* *aboveground* : The aboveground
 biomass (g) of test plants \* *belowground* : The belowground biomass (g)
 of test plants All "NA" in our files are missing datas