Article
Agronomy
Zuonan Cao, Peter Kuehn, Jin-Sheng He, Juergen Bauhus, Zhen-Huan Guan, Thomas Scholten
Summary: This study tested whether using NIRS to analyze P fractions is an appropriate method for understanding the effects of P limitation on high-altitude grassland ecosystems, specifically with fertilizer amendments. The results showed that NIRS can predict more stable P pools and, when combined with Hedley fractionation, can be a promising approach for soils in alpine grasslands on the Tibetan Plateau.
Article
Plant Sciences
Guangcan Yu, Jing Chen, Mengxiao Yu, Andi Li, Ying-Ping Wang, Xinhua He, Xuli Tang, Hui Liu, Jun Jiang, Jiangming Mo, Shuo Zhang, Junhua Yan, Mianhai Zheng
Summary: Nitrogen deposition does not increase plant phosphorus demand in a nitrogen-saturated mature tropical forest. Different nitrogen addition rates regulate soil phosphorus transformation through microbial community transition.
JOURNAL OF ECOLOGY
(2023)
Article
Geochemistry & Geophysics
Kathryn Daria Szerlag, Monica Elavarthi, Matthew G. Siebecker, Chunhao Gu, Conner McCrone, Donald Lewis Sparks
Summary: This study investigated the desorption and solubilization mechanisms of legacy phosphorus in agricultural soils. The results showed that sulfate has a stronger competition for phosphorus desorption, and agricultural soils in the coastal areas are threatened by sea level rise and inundation.
Article
Multidisciplinary Sciences
Elisabeth L. Rosvold, Halvard Buhaug
Summary: This article introduces a new open source extension providing subnational, geocoded data on major disasters triggered by natural hazards. The Geocoded Disasters dataset facilitates rigorous empirical analyses of disaster determinants and impacts by connecting the EM-DAT database to other geographic data sources on the subnational level.
Article
Environmental Sciences
Wenping Xie, Jingsong Yang, Shan Gao, Rongjiang Yao, Xiangping Wang
Summary: Soil salinity significantly affects the availability and components of phosphorus in coastal areas of Jiangsu Province. Environmental factors such as soil salinity, pH, and alkaline phosphatase activity are closely correlated with soil available phosphorus. Soil salinity and alkaline phosphatase activity are the main influencing factors for soil available phosphorus in this study.
Article
Environmental Sciences
Ying-Ping Wang, Yuanyuan Huang, Laurent Augusto, Daniel S. Goll, Julian Helfenstein, Enqing Hou
Summary: The representation of phosphorus cycling in global land models is still quite simplistic, especially for soil inorganic phosphorus. This study compiled data from 147 soil samples to optimize a model of soil inorganic P dynamics using three parameters. The calibrated model performed well and the model parameters varied significantly with different soil properties.
GLOBAL BIOGEOCHEMICAL CYCLES
(2022)
Article
Engineering, Environmental
Eva Brod, Anne Falk Ogaard
Summary: The study found that phosphorus in fish sludge was mainly solubilized in the HCl fraction with a relatively low agronomic efficiency, while phosphorus in manure solids was mainly soluble in H2O and 0.5 M NaHCO3 with a higher agronomic efficiency, indicating the need to optimize the phosphorus effects of fish sludge.
Article
Multidisciplinary Sciences
R. W. McDowell, A. Noble, P. Pletnyakov, P. M. Haygarth
Summary: Soil phosphorus is crucial for food production to support the growing global population. However, the knowledge of plant available phosphorus stocks at a global scale is limited, hindering the efficient use of phosphorus fertilizers. This study compiled and analyzed a database of thousands of soil samples to generate a model that predicts the distribution and global stock of plant available phosphorus. These findings can inform strategies to optimize phosphorus use and mitigate environmental degradation.
Article
Agronomy
Di He, Yvette Oliver, Enli Wang
Summary: The study developed a general inverse approach to reliably predict soil PAWC from crop yield, demonstrating higher accuracy in regions with high rainfall or dominant summer rainfall.
Article
Agronomy
Veronica Santoro, Michela Schiavon, Ivan Visentin, Maria Martin, Daniel Said-Pullicino, Francesca Cardinale, Luisella Celi
Summary: This study reveals the role of strigolactones (SLs) in modulating tomato plants' acclimation to phosphorus deficiency. SL-depleted tomato plants were more efficient in phosphorus acquisition than wild-type plants, although the phosphorus acquisition efficiency did not significantly increase. This highlights the central role of SLs in controlling phosphorus uptake and optimizing the cost/benefit ratio of phosphorus acquisition.
Article
Multidisciplinary Sciences
Bei Su, Xianrui Song, Solange Duhamel, Claire Mahaffey, Clare Davis, Ingrid Ivancic, Jihua Liu
Summary: Utilisation of dissolved organic phosphorus (DOP) by marine microbes as an alternative phosphorus (P) source can help sustain non-Redfieldian carbon:nitrogen:phosphorus ratios and efficient carbon export. This study presents a Global Alkaline Phosphatase Activity Dataset (GAPAD), which includes measurements of alkaline phosphatase activity collected from various oceanic regions. The dataset can support future studies on global ocean P supply from DOP utilisation and provide a reference for field investigations and modelling activities.
Article
Plant Sciences
Reinhard W. Neugschwandtner, Jirina Szakova, Vera Pachtrog, Pavel Tlustos, Martin Kulhanek, Jindrich Cerny, Hans-Peter Kaul, Helmut Wagentristl, Gerhard Moitzi, Pia Euteneuer
Summary: The status of macronutrients phosphorus (P), potassium (K), sulphur (S), calcium (Ca) and magnesium (Mg) was assessed 15 years after the establishment of a long-term crop rotation and soil tillage trial. The results showed that different tillage methods did not affect the distribution of macronutrients in the soil, but crop rotation had a significant impact on the nutrient uptake of winter wheat.
Article
Agronomy
Hitoshi Moro, Ho-Dong Park, Takashi Kunito
Summary: In soils with different phosphorus availability, barley roots primarily absorbed inorganic phosphorus when phosphorus availability was high, while they hydrolyzed organic phosphorus (primarily phytate-like P) to meet phosphorus demand when availability was low.
Article
Meteorology & Atmospheric Sciences
Surya Gupta, Peter Lehmann, Samuel Bickel, Sara Bonetti, Dani Or
Summary: The estimation of plant-available soil water is crucial for various applications including quantifying transpiration fluxes, heatwaves, irrigation water management, land-use decisions, vegetation ecology, and land surface memory in climate models. This study revises the definition of plant-available soil water to incorporate soil-specific dynamic effects and local climate effects, resulting in improved global maps of plant-available soil water. The results show that global soil water storage rarely exceeds a certain value, emphasizing the need for multiple refilling of soil profiles.
JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS
(2023)
Article
Soil Science
Shuang Liu, Xinyu Zhang, Junxiao Pan, Zeqing Ma
Summary: The activities of acid phosphomonoesterase (ACP) and alkaline phosphomonoesterase (ALP) were positively correlated with the available P contents in the temperate forest soil, while the abundance of phoC and phoD genes were positively correlated with the available P contents in the subtropical forest soil. In the topsoil, the enzyme kinetic parameters and DNA contents were positively correlated with the available P contents, while in the subsoil, total P contents, pH, microbial biomass P (MBP), and enzyme kinetic parameters were positively correlated with the available P contents. These findings provide an improved understanding of the factors influencing P availability in temperate and subtropical forest soils at different depths.
APPLIED SOIL ECOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Huimin Xiang, Xianzhen Luo, Lingling Zhang, Enqing Hou, Jiong Li, Qiandong Zhu, Dazhi Wen
Summary: The increase in soil carbon stocks during the succession of subtropical forests is mainly attributed to the accumulation of recalcitrant carbon in the topsoil, resulting from increased input of litter and fine roots and increased association between soil organic carbon and minerals.
Article
Soil Science
Muhammed Mustapha Ibrahim, Fengying Wu, Yulin Chen, Dongming Liu, Weiting Zhang, Zhengxuan He, Enqing Hou, Shihe Xing, Yanling Mao
Summary: Improving fertilizer-N retention and use efficiency is crucial for reducing reactive nitrogen loss into the environment. This study evaluated the effects of MgO- and sepiolite-biochar nanocomposites on N-retention and NUE in a soil-maize system. The results showed that the modified biochars significantly increased the retention and uptake of 15N-urea, resulting in improved NUE, biomass, and grain yield compared to the sole fertilizer treatment. The MgO-modified biochar, in particular, demonstrated the highest N retention and promoted the slow-release of retained N for plant use.
Article
Plant Sciences
Xianyu Yao, Dafeng Hui, Enqing Hou, Junfei Xiong, Shuo Xing, Qi Deng
Summary: Introducing nitrogen-fixing tree species into Eucalyptus plantations can maintain high levels of nitrogen consumption and productivity, but may exacerbate phosphorus limitation. A field experiment was conducted to investigate the impacts of nitrogen fertilization and introducing a nitrogen-fixing tree species on soil phosphorus transformation in a pure Eucalyptus plantation. Nitrogen fertilization significantly increased the occluded phosphorus pool and reduced other phosphorus pools, while introducing the nitrogen-fixing tree species did not change soil pH or the nitrogen:phosphorus ratio in Eucalyptus leaves.
Article
Ecology
Guitong Xing, Xiaofang Wang, Yamin Jiang, Huai Yang, Siwei Mai, Wenxian Xu, Enqing Hou, Xingzhao Huang, Qiu Yang, Wenjie Liu, Wenxing Long
Summary: The study found that during the process of forest succession from plantation to secondary forest and old-growth forest, soil organic carbon (SOC) increased significantly at 0-10 cm and 10-20 cm depths but not at deeper depths. The decrease in soil pH and the increase in total root biomass were the main factors contributing to SOC sequestration. Therefore, forest succession improved SOC accumulation.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2023)
Article
Soil Science
Xianzhen Luo, Enqing Hou, Lingling Zhang, Yuangwen Kuang, Dazhi Wen
Summary: Afforestation can greatly affect the stocks of terrestrial carbon (C), nitrogen (N), and phosphorus (P) by changing soil microbial properties and functions, but the global scale effects of afforestation on soil microbial properties and functions remain unknown.
BIOLOGY AND FERTILITY OF SOILS
(2023)
Article
Biodiversity Conservation
Enqing Hou, Shuang Ma, Yuanyuan Huang, Yu Zhou, Hyung-Sub Kim, Efren Lopez-Blanco, Lifen Jiang, Jianyang Xia, Feng Tao, Christopher Williams, Mathew Williams, Daniel Ricciuto, Paul J. Hanson, Yiqi Luo
Summary: This study used a matrix approach to analyze the differences in simulating land carbon dynamics between different models and identify their sources. The study found that the differences between models mainly came from differences in baseline carbon residence time and environmental factors, and these differences can be reduced by standardizing model parameters. The findings of this study are important for improving climate change prediction.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Plant Sciences
Zhimin Li, Chuankuan Wang, Dandan Luo, Enqing Hou, Muhammed Mustapha Ibrahim
Summary: The Vulnerability segmentation (VS) and Hydraulic segmentation (HS) hypotheses propose that leaves are more vulnerable to hydraulic resistance and embolism than branches. However, whether these hypotheses hold true during freezing stress has been rarely investigated. This study measured the hydraulic traits of leaf and branch in three temperate evergreen tree species across four seasons and found that vulnerability segmentation can occur all year round, including freezing stress, to protect branches from hydraulic failure.
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2023)
Article
Environmental Sciences
Huijun Ye, Changyuan Tang, Yingjie Cao, Enqing Hou
Summary: This study revealed the close relationship between the sources and fates of particulate organic matter (POM) in a typical Bay in China with complex land use patterns. The results showed that POM in rural areas mainly came from soil, while POM in developing and developed urban areas came from soil, manure, and sewage. POM in the industrial urban area primarily originated from soil and industrial wastewater.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Multidisciplinary Sciences
Xingyun Liang, Defu Wang, Qing Ye, Jinmeng Zhang, Mengyun Liu, Hui Liu, Kailiang Yu, Yujie Wang, Enqing Hou, Buqing Zhong, Long Xu, Tong Lv, Shouzhang Peng, Haibo Lu, Pierre Sicard, Alessandro Anav, David S. S. Ellsworth
Summary: Stomatal conductance is affected by CO2, warming, precipitation, ozone pollution, and nitrogen deposition. The responses vary with treatment magnitude, plant attributes, and climate. Rising CO2 and warming would dominate the future change of plant stomatal conductance across biomes.
NATURE COMMUNICATIONS
(2023)
Article
Soil Science
Xianzhen Luo, Lingling Zhang, Yongbiao Lin, Dazhi Wen, Enqing Hou
Summary: This study explored the dynamics of soil organic carbon (SOC) stock in response to experimental phosphorus (P) additions. The results showed that P additions significantly increased SOC stock globally, with the effect depending on soil nitrogen (N) availability. Under high N availability, P additions mainly increased plant biomass and litterfall, while under low N availability, P additions not only increased plant biomass and litterfall, but also soil microbial biomass and oxidase activity. However, the increases in aboveground biomass and litterfall did not lead to corresponding carbon accumulation in the soil, possibly due to microbial CO2 release. Reactive N input reduced P-addition-induced carbon loss and enhanced the effect of P additions on SOC.
SOIL BIOLOGY & BIOCHEMISTRY
(2023)
Article
Ecology
Jennifer A. Rudgers, Anthony Luketich, Melissa Bacigalupa, Lauren E. Baur, Scott L. Collins, Kristofer M. Hall, Enqing Hou, Marcy E. Litvak, Yiqi Luo, Tom E. X. Miller, Seth D. Newsome, William T. Pockman, Andrew D. Richardson, Alex Rinehart, Melissa Villatoro-Castaneda, Brooke E. Wainwright, Samantha J. Watson, Purbendra Yogi, Yu Zhou
Summary: Previous ecological research has focused on extreme climate events or long-term changes in average climate variables, neglecting the importance of year-to-year variability. However, changes in interannual variability can have significant biological impacts, even with a stable mean climate. This study introduces a new design to investigate the effects of both mean climate and climate variance, using factorial manipulation and realistic precipitation regimes to better understand ecological responses to climate change.
Article
Ecology
Jon M. Wells, Maricar Aguilos, Xin Huang, Yuan Gao, Enqing Hou, Wenjuan Huang, Cuijuan Liao, Lin Lin, Ruiying Zhao, Han Qiu, Keanan Allen, John King, Asko Noormets, Lifen Jiang, Yiqi Luo
Summary: This article investigates the drivers of interannual variability (IAV) of net ecosystem exchange (NEE) in forested wetlands and their responses to climate and land use changes. It reveals that static ecosystem models lack the ability to capture dynamic ecological processes, emphasizing the importance of considering these processes in predicting changes in NEE.
Article
Soil Science
Muhammed Mustapha Ibrahim, Zhimin Li, Huijun Ye, Zhaofeng Chang, Huiying Lin, Xianzhen Luo, Enqing Hou
Summary: Many studies have been conducted on the responses of soil CO2 emissions to altered supplies of C and N, but limited information exists on P. This study evaluated the response patterns of CO2 emissions to alkalinity and nine elements in soils, and also investigated changes in DOC, MBC, and microbial structure. The results showed that different nutrients had different effects on CO2 emissions and microbial activity. This study highlights the complexity of predicting soil processes and the need for further research on the interactions in forest soils.
APPLIED SOIL ECOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Zhuoting Zhang, Ruyi Luo, Qinghua Liu, Wei Qiang, Jin Liang, Enqing Hou, Chunzhang Zhao, Xueyong Pang
Summary: Soil phosphorus availability is critical for ecosystem productivity, but its dynamics in cold regions such as the Tibetan Plateau are poorly understood. By analyzing soil samples from different vegetation types along a succession gradient, we found significant increases in inorganic phosphorus concentrations and a subsequent decrease in organic phosphorus concentration during secondary succession. We also identified the joint influence of abiotic factors and microbial communities on soil phosphorus dynamics. These findings provide valuable insights into soil nutrient availability in cold regions.
Article
Forestry
Xiaowei Zang, Xianzhen Luo, Enqing Hou, Guihua Zhang, Xiaofeng Zhang, Meijuan Xiao, Dazhi Wen, Lingling Zhang
Summary: This study explored the impacts of elevated atmospheric CO2 concentration and nitrogen addition on the growth, physiological characteristics and chemical compositions of five subtropical tree species in a cadmium-contaminated environment over a period of 2 years. The results showed that nitrogen addition and elevated CO2 had positive effects on the growth of A. auriculiformis, S. hainanense, and L. formosana, while the growth rate of C. hystrix and C. camphora remained unchanged.
