Chronic anthropogenic disturbance mediates the biodiversity-productivity relationship across stand ages in a large temperate forest region

Temperate forests, especially those in the densely populated regions of the world, are experiencing increasing levels of habitat degradation and biological impoverishment due to subtle but pervasive chronic anthropogenic disturbances including frequent and continuous grazing and extraction of non-timber forest products. However, the effects of these subtle, chronic disturbances on the biodiversity-productivity relationship have rarely been examined especially in forests at different development stages. Accordingly, this study explores how chronic anthropogenic disturbance affects the relationship between tree species diversity and forest productivity at different stand development stages in a large temperate forest region.
 
We used the human footprint index as a proxy for chronic human disturbance. Hierarchical Bayesian models were employed to assess the effects of chronic human disturbance on the relationship between tree diversity and forest productivity across different stand age. S..., The study area (c. 700,000 km2) is a large temperate forest region situated in northeastern China (latitude 39°42’48”-53°19’21” N, longitude 119°48’12”-134°01’01” E) where coniferous and broadleaved forests occur. The climate is temperate continental with significant temperature seasonality (average annual temperature ranging from -5.1 to 8.8°C) and precipitation seasonality (rainfall ranging from 404 to 985 mm). Altogether 379 circular field plots, each measuring 0.1 ha, were systematically established in 2017, across the study region. The minimum and average distance between plots is 10 km and 19 km, respectively. All individual trees with a diameter greater than 5 cm at breast height (DBH) were tagged, mapped, and recorded. Each plot was equally divided into ten subplots of 0.01 ha. Wood cores were extracted from the northern side of each tree at breast height using increment borers (5.15 mm) in 2017. The collected wood core samples were subjected to analysis to directly ascertain pa..., , # Chronic anthropogenic disturbance mediates the biodiversity-productivity relationship across stand ages in a large temperate forest region

* File containing data of the biotic variables and environmental variables examined for local communities (0.01ha) and plots (0.1ha).

## Data and File Overview

## Summary Metrics

* File count: 1
* File formats: .csv

## Naming Conventions

* File naming scheme: files with the \"local communities\" denote 3614 local communities included in the study.

## Table of Contents

* local communities.csv

## File/Folder Details

## Details for: local communities.csv

* Description: one file containing the biotic variables and environmental variables (scaled) for 379 plots and 3614 local communities included in the study.

* Format(s): .csv

* Dimensions: 3614 rows x 15 columns

* Variables:
* plot: 379 plots

* local communities: 3614 local communities

* BP: the biomass productivity within a given local community; unit...