The synergy of intrinsic ecological mechanisms of leaf nutrient resorption in temperate deciduous trees

Nutrient resorption is a critical process in plant nutrient conservation during leaf senescence. However, the underlying ecological mechanisms on the large variabilities in nitrogen (NRE) and phosphorous (PRE) resorption efficiencies remain poorly understood. We conducted a comprehensive study on NRE and PRE variability using 61 tree individuals of 10 temperate broadleaved tree species. Three potentially interrelated intrinsic ecological mechanisms (i.e., leaf pigments, energy residual and leaf senescence phenology) were verified. We found that delayed leaf senescence date, increased degradation of chlorophyll and carotenoids, biosynthesis of anthocyanins, and reduced nonstructural carbohydrates (particular sugars) coordinately and positively related with NRE and PRE. The intrinsic factors affecting the resorption efficiency were ranked in a decreasing order: leaf pigments > energy residual > senescence phenology. Our findings underscore the synergistic effect of the three ecologi..., The datset was conducted at the Maoershan Forest Ecosystem Research Station (45°24′N,127°40′E), Heilongjiang Province, northeastern China. The site has a continental monsoon climate, with a mean annual temperature of 2.1°C and mean precipitation of 726 mm from 2008 to 2019.
From early autumn until leaf-fall in 2022, we randomly marked 61 individuals from 10 tree species, at least 3 healthy and mature individuals were selected from each species (Table S1). The early autumn was carefully determined for sampling time for green mature leaves, by considering: (1) the N, P and chlorophyll concentrations have been not entering the rapid decline phase based on the seasonality of leaf nutrients and chlorophyll. (2) The NSC level has been past its depletion period during rapid summer growth, according to the carbon sink saturation hypothesis on leaf senescence phenology. Furthermore, none of the species has N-fixing symbionts, excluding the contamination of N-fixing status on effects of intrinsic..., , # The synergy of intrinsic ecological mechanisms of leaf nutrient resorption in temperate deciduous trees

This dataset is supporting for “The synergy of intrinsic ecological mechanisms of leaf nutrient resorption in temperate deciduous trees”. It included 61 tree individuals of 10 species. Three potentially interrelated intrinsic ecological mechanisms (i.e., leaf pigments, energy residual and leaf senescence phenology) were verified. These data are also invaluable in explore the senesced leaf traits.

## Description of the data and file structure

The dataset is available as a csv file, including 33 variables. The data for each tree individual is listed. The variable name and unit (in the parentheses) are listed below.

1.       Chinese_name, the name of tree species in Chinese from .

2.       Latin_name, the scientific name of tree species from .

3.       NRE, nitrogen resorption efficiency (%)

4.       PRE, phosphorus resorption efficiency (%)

5.       StartDOY, start of leaf c...