Article
Environmental Sciences
Tao Wang, Jing Ao, Xinyu Liu, Yuanrui Peng, Michiel Op de Beeck, Ruiying Chang
Summary: The effects of anthropogenic nitrogen input on the balance between plant carbon input and soil carbon loss are a major uncertainty in estimating soil as net carbon sinks or sources.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2022)
Article
Soil Science
Ester Helbling, Derek Pierson, Kate Lajtha
Summary: Research indicates that using soil density fractionation (SDF) can lead to soil mass and carbon loss, potentially affecting the accuracy of models for soil organic matter dynamics and global carbon cycling. In summer-dry climates, soluble organic carbon in soil may be lost with precipitation. However, experiments show that in temperate soils, even in seasonally extreme ecosystems, the relative proportions of mineral-associated organic matter and free particulate organic matter are seasonally stable, and air drying of soil does not introduce errors.
Article
Engineering, Environmental
Xiaocen Jia, Juraj Majzlan, Liyuan Ma, Peng Liu, Peikuan Fan, Wanyu Li, Jianwei Zhou, Bing Wen
Summary: Colloids play an important role in the geochemical cycle of antimony (Sb) and have a significant impact on Sb mobility in contaminated groundwater. Organic colloids were found to closely associate with Sb, and the behavior of Sb was controlled by proteinlike substances and humus-like substances. Competitive adsorption of arsenic (As) and Sb suppressed the complexation of colloids with Sb, and the redox of the groundwater system also influenced Sb mobility. These findings provide new insights into the mechanisms involved in Sb fate affected by colloids and offer a theoretical basis for developing effective Sb and metalloid pollution remediation strategies.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Forestry
Nurul Syakilah Suhaili, Syahrir Mhd Hatta, Daniel James, Affendy Hassan, Mohamadu Boyie Jalloh, Mui-How Phua, Normah Awang Besar
Summary: The study estimated carbon stocks in tropical montane forests under different land uses and found that intact forests had the highest soil carbon stock, organic layer, and litterfall, while plantation forests had the lowest. Conserving intact forests is highlighted as an important strategy for carbon sequestration and climate change mitigation.
Article
Agronomy
Peng Zhao, Jinshu Chi, Mats B. Nilsson, Mikaell Ottosson Lofvenius, Peter Hogberg, Georg Jocher, Hyungwoo Lim, Annikki Makela, John Marshall, Joshua Ratcliffe, Xianglin Tian, Torgny Nasholm, Tomas Lundmark, Sune Linder, Matthias Peichl
Summary: Boreal forests are important global carbon sinks, but low soil nitrogen availability limits forest productivity. Past studies have focused on aboveground tree biomass and soil carbon stock, lacking data on the ecosystem-scale carbon balance. This study uses long-term experiment data to examine the effects of ecosystem-scale nitrogen fertilization on a managed boreal pine forest, revealing increased carbon uptake and winter carbon emission. The study also highlights the divergent responses to weather patterns, emphasizing the importance of accounting for ecosystem-scale responses to perturbations.
AGRICULTURAL AND FOREST METEOROLOGY
(2022)
Article
Environmental Sciences
Yu Zhang, Lingbo Dong, Zhouping Shangguan
Summary: Soil aggregation and structural stability are crucial for soil organic carbon sequestration. Appropriate nitrogen addition can promote arbuscular mycorrhizal fungi (AMF) to secrete glomalin-related soil protein (GRSP), enhancing the formation of soil aggregates and the physical protection of organic carbon, thereby improving soil organic carbon stability and carbon sequestration capacity.
LAND DEGRADATION & DEVELOPMENT
(2023)
Article
Soil Science
Paride Balzani, Alberto Masoni, Stefania Venturi, Filippo Frizzi, Marina Bambi, Renato Fani, Barbara Nisi, Franco Tassi, Orlando Vaselli, Marco Zaccaroni, Giacomo Santini
Summary: Red wood ants in Europe are ecologically important species that influence gas emissions through respiration processes. Their nest mounds provide stable microclimatic conditions for the development of diverse microbial communities.
SOIL BIOLOGY & BIOCHEMISTRY
(2022)
Article
Environmental Sciences
Lee H. Dietterich, Jason Karpman, Avishesh Neupane, Mark Ciochina, Daniela F. Cusack
Summary: This study investigated the effects of season, fertility, and mean annual precipitation on soil organic carbon (SOC) fractions in lowland forests in Panama. The results showed that the carbon content of all soil fractions varied with fertility and mean annual precipitation, with mineral-associated SOC increasing with greater precipitation in infertile sites. Only the free-debris SOC fraction showed strong seasonal variation, increasing during the dry season.
Article
Agronomy
Suhui Ma, Qingshui Yu, Guoping Chen, Haojie Su, Wenguang Tang, Yuanfeng Sun, Zhang Zhou, Lai Jiang, Jiangling Zhu, Leiyi Chen, Biao Zhu, Jingyun Fang
Summary: Nutrient inputs, particularly phosphorus and nitrogen, can promote soil respiration in tropical forests. This increase is likely attributed to the stimulation of aboveground net primary productivity and varies with forest successional stages and nutrient types.
AGRICULTURAL AND FOREST METEOROLOGY
(2022)
Article
Environmental Sciences
Zhengjun Yan, Jie Zhou, Lei Yang, Anna Gunina, Yadong Yang, Leanne Peixoto, Zhaohai Zeng, Huadong Zang, Yakov Kuzyakov
Summary: Understanding the sequestration of carbon and nitrogen in diversified cropping systems is crucial for soil health management. A field experiment comparing three cropping systems found that diversified systems increased soil aggregation and stability, leading to higher carbon and nitrogen stocks. Different fractionation methods were used to evaluate soil aggregates, and it was determined that a combination of dry and optimal-moisture sieving is the preferred method to assess aggregate stability.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Multidisciplinary Sciences
Justin D. Gay, Bryce Currey, E. N. J. Brookshire
Summary: The study found that soil nitrogen concentration in tropical montane forests significantly increases with elevation, while stable isotopes decrease, indicating reduced microbial nitrogen processing and lower gaseous nitrogen losses. Temperature plays a key role in nitrogen changes, with an apparent temperature sensitivity of around 1.9. These findings support the widespread microbial nitrogen limitation and high sensitivity to climate warming in tropical montane forest ecosystems.
NATURE COMMUNICATIONS
(2022)
Article
Multidisciplinary Sciences
Justin D. Gay, Bryce Currey, E. N. J. Brookshire
Summary: This study examines the topographic signatures of the tropical nitrogen cycle by investigating soil nitrogen content and stable isotopes in tropical montane forests across elevation gradients worldwide. The findings suggest that microbial nitrogen limitation is widespread in tropical montane forest ecosystems and that they are highly sensitive to climate warming.
NATURE COMMUNICATIONS
(2022)
Article
Biodiversity Conservation
Ye Yuan, Yue Li, Zhijian Mou, Luhui Kuang, Wenjia Wu, Jing Zhang, Faming Wang, Dafeng Hui, Josep Penuelas, Jordi Sardans, Hans Lambers, Jun Wang, Yuanwen Kuang, Zhi'an Li, Zhanfeng Liu
Summary: Soil nutrient availability and aggregate fractions affect the concentrations of soil microbial residues and their contribution to SOC accumulation in tropical coastal forests. Continuous phosphorus addition decreases microbial residues and their contribution to SOC, while nitrogen addition has little effect. The mechanisms driving microbial residue responses to increased N and P availability may differ, with P-induced reductions potentially impacting SOC stability in N-rich and P-poor tropical forests.
GLOBAL CHANGE BIOLOGY
(2021)
Article
Soil Science
Peng Chen, Xiao-Liang Yuan, Lin -Yang Li, Jun-Ya Li, Run-Qin Zhang, Zhi-Guo Li, Yi Liu
Summary: Land-use type influences CO2 emission fluxes, delta(CO2)-C-13, and the effects of heterogeneity in soil microenvironment. This study investigated the effects of land-use type on soil-respired CO2 and delta(CO2)-C-13 using long-term soil incubation and fractionation techniques. Results showed that woodland had the highest soil respiration rates and exhibited a shift in delta(CO2)-C-13 values. Aggregational differentiation of soil-respired CO2 and delta C-13 was found only in the woodland, and warming intensified these differences. These findings are important for understanding the feedback of soil carbon pool to global warming.
Article
Soil Science
Vera L. Baumert, Stefan J. Forstner, Jeroen H. T. Zethof, Cordula Vogel, Julian Heitkoetter, Stefanie Schulz, Ingrid Kogel-Knabner, Carsten W. Mueller
Summary: Tree roots and associated rhizosphere development increase macroaggregate formation in subsoils, enhancing carbon sequestration potential by boosting fungal growth. However, rooting treatment decreases macroaggregate abundance in topsoils, potentially through disruption of preexisting aggregates. The study highlights different mechanisms governing organic carbon dynamics in topsoil versus subsoil.
SOIL BIOLOGY & BIOCHEMISTRY
(2021)
Article
Geosciences, Multidisciplinary
Jialuo Yu, Haijian Bing, Ruiying Chang, Yongxing Cui, Guoting Shen, Xiangxiang Wang, Shangpeng Zhang, Linchuan Fang
Summary: This study investigated the response of microbial metabolism in alpine grassland soil to warming, and found that microbial metabolism was limited by carbon and phosphorus. Experimental warming decreased microbial carbon limitation in the topsoil, but not the subsoil.
Article
Chemistry, Analytical
Yuan Cao, Kun Liu, Ruifeng Wang, Xiaoming Gao, Ronghua Kang, Yunting Fang, Weidong Chen
Summary: Faraday rotation spectroscopy (FRS) is used to detect paramagnetic molecules with high selectivity and sensitivity. A novel FRS approach based on a combination of neodymium iron boron permanent magnet rings and a Herriott multipass absorption cell is proposed in this study. By using 14 identical magnet rings combined in a non-equidistant form, a longitudinal magnetic field is generated. With the combination of a quantum cascade laser and a Herriott multipass absorption cell, a minimum detection limit of 0.4 ppb is achieved.
ANALYTICAL CHEMISTRY
(2023)
Article
Ecology
Geshere Abdisa Gurmesa, Shasha Zhang, Ang Wang, Feifei Zhu, Abubakari Said Mgelwa, Chuankuan Wang, Qiuliang Zhang, Weixing Zhu, Yunting Fang
Summary: Conversion of forests from natural and secondary mixed to plantation monocultures can change soil properties and alter ecosystem nitrogen status. Assessing and comparing nitrogen status across different forest types and sites is challenging due to conflicting conclusions from different indicators. In this study, we used a multiple-indicator approach to evaluate nitrogen status in larch monocultures and mixed secondary forests at three sites in northeastern China. Our results showed that nitrogen availability increased from north to south, consistent with climatic and nitrogen deposition gradients. Furthermore, the nitrogen availability differed between larch plantations and mixed forests, reflecting their different succession and management histories.
Article
Agronomy
Tianxiao Ma, Yu Liang, Zhouyuan Li, Zhihua Liu, Bo Liu, Mia M. Wu, Matthew K. Lau, Yunting Fang
Summary: This study identified the age-related pattern and key climatic driving factors of drought-induced mortality for dominant tree species in Northeast China. The findings revealed that the mean annual rate of forest drought-induced mortality in the region was 0.49%, with higher rates in certain areas. Heatwaves were found to have a significant impact on tree mortality, affecting around 91.60% of the forest region in Northeast China.
AGRICULTURAL AND FOREST METEOROLOGY
(2023)
Article
Agronomy
Xiufen Li, Xin Wang, Yunting Fang, Dongwei Liu, Kai Huang, Peilin Wang, Jinxin Zhang, Tao Yan
Summary: This study examines the phenological responses of three temperate tree species under different levels of warming. It finds that warming advances budburst and leaf unfolding, but only delays autumn leaf senescence in one species. The study also suggests that warming affects the competitiveness of tree species and may have implications for tree recruitment and forest structure and composition.
AGRICULTURAL AND FOREST METEOROLOGY
(2023)
Article
Geosciences, Multidisciplinary
Yongxue Yan, Xiaohan Dong, Renshan Li, Yankuan Zhang, Shaokui Yan, Xin Guan, Qingpeng Yang, Longchi Chen, Yunting Fang, Weidong Zhang, Silong Wang
Summary: Enhancing rock weathering through the addition of silicate rock powder to soil has been proposed as an effective method to remove CO2 from the atmosphere. However, the impact of silicate rock powder on the stability of soil organic carbon and its effectiveness in mitigating CO2 emissions is not well understood. This study evaluated the response of soil CO2 efflux to wollastonite addition in different land-use types in a subtropical region of China. The results showed that wollastonite addition significantly increased soil CO2 efflux, with soil properties playing a major role in this response. The findings suggest that the application of wollastonite may lead to increased mineralization of soil organic carbon in acidic soil, potentially weakening the effectiveness of enhanced rock weathering as a CO2 sequestration tool.
Article
Ecology
Ji Liu, Linchuan Fang, Tianyi Qiu, Haijian Bing, Yongxing Cui, Jordi Sardans, Enzai Du, Ji Chen, Wenfeng Tan, Manuel Delgado-Baquerizo, Guiyao Zhou, Qingliang Cui, Josep Penuelas
Summary: This study investigated the patterns of plant-microbial N/P limitation in forests across China and found significant divergence between the two. The N/P limitation was disconnected in 42.6% of plant-microbial communities, with only 17.7% of N and 39.7% of P limitations consistent. The divergence was more evident at mid-latitudes, where plants were mainly N limited and microbes were mainly P limited. The findings were consistent with ecological stoichiometry and highlighted the importance of soil chemistry in driving the divergence.
FUNCTIONAL ECOLOGY
(2023)
Article
Soil Science
Rong Sheng, Huifang Xu, Xiaoyi Xing, Wenzhao Zhang, Haijun Hou, Hongling Qin, Yi Liu, Limei Zhang, Yunting Fang, Jupei Shen, Jakob Pernthaler, Wenxue Wei, Baoli Zhu
Summary: The influence of parent materials on soil bacterial communities in agricultural soils was investigated. Different soil types were found to support distinct bacterial communities. The characteristics inherited from parent materials explained more of the variation in bacterial community structure than soil management variables and climate conditions.
Article
Environmental Sciences
Jun-bo He, Yan-hong Wu, Hai-jian Bing, He Zhu, Jun Zhou
Summary: Soil chronosequences derived from historical landslides provide important insights into pedogenesis, nutrient dynamics, and ecosystem evolution. A 22,000-year soil chronosequence from multiple landslides on the upper reach of Minjiang River in China was presented, validating the reliability of the chronosequence through various pedogenesis indices and soil nutrient variations. The results showed changes in soil composition, weathering indices, and nutrient concentrations, indicating a long-term soil development process and providing a platform for improving biogeochemical theories and understanding sustainable vegetation restoration.
JOURNAL OF MOUNTAIN SCIENCE
(2023)
Article
Multidisciplinary Sciences
Maoyuan Feng, Shushi Peng, Yilong Wang, Philippe Ciais, Daniel S. Goll, Jinfeng Chang, Yunting Fang, Benjamin Z. Houlton, Gang Liu, Yan Sun, Yi Xi
Summary: Nitrogen loss due to soil denitrification in global natural ecosystems is overestimated by almost two times in current earth system models, highlighting the need for improvement. The study quantifies the loss using an isotope-benchmarking method and produces a global map of natural soil N-15 abundance. The overestimation of denitrification in models has implications for the assessment of CO2 mitigation and plant growth responses.
NATURE COMMUNICATIONS
(2023)
Article
Environmental Sciences
Haoming Yu, Yihang Duan, Jan Mulder, Peter Dorsch, Weixing Zhu, Xu-Ri, Kai Huang, Zhoutao Zheng, Ronghua Kang, Chao Wang, Zhi Quan, Feifei Zhu, Dongwei Liu, Shushi Peng, Shijie Han, Yangjian Zhang, Yunting Fang
Summary: Warming affects forest soil denitrification and nitrogen losses, with temperature enhancing nitrous oxide and dinitrogen but varying by soil. The temperature sensitivities are similar across soils but higher for dinitrogen, suggesting complete denitrification in a warmer climate. This finding of universal temperature sensitivity of gaseous N losses from denitrification will facilitate modeling N losses in response to warming globally.
NATURE CLIMATE CHANGE
(2023)
Article
Environmental Studies
Dongwei Liu, Shanlong Li, Weixing Zhu, Yongyang Wang, Shasha Zhang, Yunting Fang
Summary: This study investigates the vertical distribution and mineral protection mechanisms of soil organic carbon (SOC) in secondary mixed forest (MF) and larch plantation forest (LF) in northeastern China. SOC is mainly stored in mineral soils, with differences in stock between the two forest types. The increasing proportion of SOC in microaggregates and MAOM along the soil depth influences SOC stability.
Article
Environmental Sciences
Zhihua Liu, Wen J. Wang, Ashley Ballantyne, Hong S. He, Xugao Wang, Shuguang Liu, Philippe Ciais, Michael C. Wimberly, Shilong Piao, Kailiang Yu, Qichao Yao, Yu Liang, Zhiwei Wu, Yunting Fang, Anping Chen, Wenru Xu, Jiaojun Zhu
Summary: According to satellite data, the rate, frequency, and extent of forest disturbances in China decreased from 1986 to 2020, possibly due to forest protection policies. However, while these disturbances intensified in the southeast, they weakened in the northeast.
COMMUNICATIONS EARTH & ENVIRONMENT
(2023)
Article
Biodiversity Conservation
Wenliang Ju, Linchuan Fang, Guoting Shen, Manuel Delgado-Baquerizo, Ji Chen, Guiyao Zhou, Dengke Ma, Haijian Bing, Lei Liu, Ji Liu, Xiaolian Jin, Liang Guo, Wenfeng Tan, Evgenia Blagodatskaya
Summary: This study investigates the long-term effects of grazing exclusion on soil microbial communities and nutrient dynamics within soil aggregates in a semiarid grassland. The results show that long-term grazing exclusion reduces microbial diversity and carbon sequestration potential, while medium-term grazing exclusion promotes carbon sequestration and nutrient cycling.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Biodiversity Conservation
Meixia Gao, Feifei Zhu, Erik A. Hobbie, Weixing Zhu, Shanlong Li, Geshere A. Gurmesa, Ang Wang, Xiaoming Fang, Jiaojun Zhu, Per Gundersen, Kai Huang, Zhou Wu, Yunting Fang
Summary: This study reveals that N deposition promotes tree growth and carbon allocation into wood in temperate and boreal forests in China and worldwide. This suggests that N deposition may enhance forest carbon sequestration through increased wood production and allocation of carbon into stable sinks.
PLANTS PEOPLE PLANET
(2023)