@所有人，JPE优秀论文揭晓！

从2022年开始，JPE每年会从两年前发表的文章中，根据文章的被引用情况以及在领域内的学术影响力，评选出2-5篇论文，获得“JPE优秀论文”。今年我们很荣幸宣布以下三篇论文获得该荣誉，详情请看下文介绍。

This year, we selected the best papers from all the articles published in the year of 2022. We are delighted to announce the three winners of a “JPE Best Paper” award and highlight the significance of these papers below.

1. glmm.hp: an R package for computing individual effect of predictors in generalized linear mixed models （Lai et al. 2022）

This method article makes significant contributions by introducing a novel R package, glmm.hp. This package addresses the challenge of determining the relative importance of collinear predictors (fixed effects) in generalized linear mixed models (GLMMs). The authors developed an algorithm based on the ''average shared variance'' approach, enabling the decomposition of the marginal R² explained by fixed effects. The package allows for the calculation of individual marginal R² values for each predictor, which collectively sum to the total marginal R². This advancement aids in the clearer interpretation of GLMM outcomes, especially in ecological studies where predictor variables are often correlated.

Brief introduction of the first author:

Jiangshan Lai

Dr. Lai is a professor at Nanjing Forestry University, specializing in quantitative ecology and biostatistics. He proposed the innovative "average shared variance" theory to address the issue of determining the relative importance of explanatory variables in ecological canonical analysis. Dr. Lai has developed several R packages, including rdacca.hp, glmm.hp, and gam.hp, which calculate the contributions of individual explanatory variables in canonical ordination analysis (RDA, CCA, and dbRDA), generalized mixed effects models (GLMM), and generalized additive models (GAMs), respectively. These packages have been widely adopted in ecological and environmental science data analysis. He is Associate Editor of Methods in Ecology and Evolution, Journal of Plant Ecology and Biodiversity Science. He obtained his PhD degree in Ecology from Institute of Botany, Chinese Academy of Sciences in 2008.

相关阅读：

2. Aboveground net primary productivity and soil respiration display different responses to precipitation changes in desert grassland (Zhang et al. 2022)

Precipitation (PPT) changes affect both aboveground vegetation dynamics and belowground carbon cycling processes, particularly in arid and semiarid regions. Zhang et al. (2022) found the aboveground net primary productivity (ANPP) was more sensitive to extreme drought than extreme wet treatments in wet and dry years, which displayed a negative asymmetric model. The saturating response of Rs to extreme drought (−40% PPT treatment) was also found in the dry year. While the response of Rs to PPT change displayed a negative asymmetry model in wet years. The contrasting models for ANPP and Rs in response to altered PPT regime suggest that extreme wet or dry treatments may increase soil C pools effluxes toward debt in this desert grassland.

Lihua Zhang

Dr. Zhang is now an associate professor at Northwest Normal University. She studies interaction between plant, soil and microorganism on responses of ecosystem to precipitation change in desert grassland. She is also interested in soil property and plant community under ecology restoration. She obtained her PhD degree in physical geography from Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences in 2009.

https://doi.org/10.1093/jpe/rtab067

相关阅读：

荒漠草原区地上净初级生产力和土壤呼吸对降水变化的不同响应

3. Drought may be beneficial to the competitive advantage of Amaranthus spinosus (Yu et al. 2022)

The objective of this study was to evaluate the competitive advantage of the invasive species Amaranthus spinosus L., in comparison to the native species A. tricolor L. under a gradient of drought. The results indicated that drought enhanced the competitive advantage of A. spinosus, as evidenced by the upregulation of the relative competition intensity and relative dominance in comparison to A. tricolor. This present study provides a robust theoretical basis for the environmental management of A. spinosus under drought.

Youli Yu

Mr. Yu currently holds a managerial position at Zhenjiang Traffic Bureau. His research interests focus on the interaction between invasive plants and root-associated microorganisms. Specifically, he has conducted extensive studies on the impact of invasive herbaceous plants like Solidago canadensis and Conyza canadensis on the soil microbial community's activity and diversity. He obtained his master's degree in Environmental Engineering from Jiangsu University in 2023.