Article
Geosciences, Multidisciplinary
Alex Dunne, Yuriy Kuleshov
Summary: A drought risk assessment was conducted for the Murray-Darling Basin (MDB), an agricultural region in Australia. Region- and agricultural sector-specific indicators were used to calculate the drought risk index. ArcGIS was used to prepare thematic layers of the drought risk index and its components. A case study for the 2019 drought was investigated, and monthly drought risk index maps were produced.
Article
Geosciences, Multidisciplinary
Isabella Aitkenhead, Yuriy Kuleshov, Andrew B. Watkins, Jessica Bhardwaj, Atifa Asghari
Summary: This study evaluated the effectiveness, proactivity, and suitability of Agricultural Drought Management (ADM) Strategy in the Northern Murray-Darling Basin (MDB), finding that Balonne Shire and the Goondiwindi Region are high priority areas requiring improved ADM. The research suggests that a user-centred Integrated Early Warning System (I-EWS) could potentially increase ADM proactivity and suitability, thereby strengthening drought resilience in farming communities in the region.
Article
Environmental Sciences
Danielle C. Verdon-Kidd, Steven G. Sandi, Angela G. Metcalfe, Luke J. Kidd
Summary: Perennial freshwater systems provide important ecological services globally, but their availability is highly variable in regions with variable climates such as Australia. This study compares three spatial databases commonly used in Australia to assess perennial systems, and finds that no single database is entirely reliable. Analysis of streamflow data and simulation data confirms that flow persistence can vary through time, with some 'perennial' systems ceasing to flow during prolonged droughts.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Geosciences, Multidisciplinary
Atifa Asghari, Yuriy Kuleshov, Andrew B. Watkins, Jessica Bhardwaj, Isabella Aitkenhead
Summary: The study reveals a trend towards drier conditions in southern Australia in recent decades, with frequent and prolonged droughts significantly impacting the financial stability of farming communities. While Forecast-based Financing (FbF) may not be suitable for Australia's market economy, providing tools incorporating a user-centred Integrated Early Warning System (I-EWS) for drought can improve decision-making processes.
Article
Geosciences, Multidisciplinary
Jessica Bhardwaj, Yuriy Kuleshov, Andrew B. Watkins, Isabella Aitkenhead, Atifa Asghari
Summary: The study developed a drought early warning system (I-EWS) using a user-centered approach in the Murray-Darling Basin, and demonstrated its effectiveness through testing during the 2017-2019 drought period. Results showed that all three stages of the I-EWS were successfully triggered, providing a warning lead time of 3-8 months during the dry period.
Article
Environmental Sciences
Ian P. Prosser, Francis H. S. Chiew, Mark Stafford Smith
Summary: The study focuses on water management policy in the Murray-Darling Basin in Australia, evaluating the operation of the policy through a synthesis of research data and literature. Limitations and inequities that could arise in the context of climate change are identified, and solutions proposed to be implemented during the formal review in the future.
Article
Environmental Sciences
Hai Tao, Aqeel Ali Al-Hilali, Ali M. Ahmed, Zainab Haider Mussa, Mayadah W. Falah, Salwan Ali Abed, Ravinesh Deo, Ali H. Jawad, Khairul Nizam Abdul Maulud, Mohd Talib Latif, Zaher Mundher Yaseen
Summary: The Murray-Darling river basin in Australia is facing severe heavy metal contamination, leading to increased crop productivity, soil fertility loss, and pollution in the surroundings. The study examined heavy metal contamination in eight study sites using various pollution indices, and found a high level of pollution in the basin. The contamination has significant impacts on human health and local environmental conditions.
Article
Environmental Sciences
Guobin Fu, Rodrigo Rojas, Dennis Gonzalez
Summary: Groundwater levels in the Murray-Darling Basin in Australia have shown an overall increasing trend, influenced by recharge changes and groundwater extraction. The analysis methods used in this study provided similar statistical significances and magnitudes, with some differences. Irrigation activities were identified as a contributing factor to the decreasing groundwater level.
Article
Multidisciplinary Sciences
R. Quentin Grafton, Long Chu, Richard T. Kingsford, Gilad Bino, John Williams
Summary: This study investigates the declining streamflows in the northern Murray-Darling Basin in Australia, and reveals the impacts of both meteorological and anthropogenic factors on the decrease in streamflow, resulting in the reduction of waterbird abundance and ecosystem resilience. The four-step framework developed in this study can be applied to any catchment with sufficient time-series data and helps in adapting to hydrological droughts.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2022)
Article
Environmental Sciences
Catherine Allan, Robyn J. Watts
Summary: This paper analyzes interview-derived discourse in order to understand the framing of two trials related to environmental water in the Edward/Kolety-Wakool river system in Australia. The research identifies four different frames of environmental water, each focusing on expert practices and potentially marginalizing other ways of understanding the river system. The study suggests that participants in social learning/adaptive management should be open to exploring alternate framings of situations.
Article
Environmental Sciences
Gilad Bino, Kate Brandis, Richard T. Kingsford, John Porter
Summary: The Murray-Darling Basin is the largest river system in Australia, supplying about 40% of the country's irrigated agricultural output. Water resource development has degraded the Basin's freshwater ecosystems, leading to ongoing declines in waterbird numbers. Despite efforts to achieve environmental sustainability through water buy-backs and improved efficiencies, current projections suggest that waterbird populations will likely continue to decline under future climate changes, remaining below restoration targets. Actions to restore waterbird populations and wetlands are recommended to meet Australia's conservation targets amidst the global crisis of biodiversity loss.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2021)
Article
Environmental Studies
Jason Alexandra, Lauren Rickards
Summary: This study analyzed contrasting discourses in water policy reforms in Australia's Murray-Darling Basin, highlighting the importance of understanding the impact of droughts on water policy under intensifying climate change. The resurgence of drought-proofing discourse significantly altered policy settings, shifting water management towards a more sustainable path. The historical roots of contemporary drought responses are crucial for effective climate adaptation and water governance.
WATER ALTERNATIVES-AN INTERDISCIPLINARY JOURNAL ON WATER POLITICS AND DEVELOPMENT
(2021)
Article
Engineering, Civil
Russell Crosbie, Bill Wang, Shaun Kim, Cherry Mateo, Jai Vaze
Summary: This study examines the fluctuation of surface water - groundwater interactions in the Murray-Darling Basin over a 49-year period. It reveals that the direction of water exchange has changed in many areas, from gaining to losing, due to declining groundwater levels. This finding highlights the limitations of our hydrological models in predicting low flows.
JOURNAL OF HYDROLOGY
(2023)
Article
Green & Sustainable Science & Technology
Guobin Fu, Stephanie R. Clark, Dennis Gonzalez, Rodrigo Rojas, Sreekanth Janardhanan
Summary: Understanding the temporal patterns and spatial distributions of groundwater levels is crucial for managing and planning groundwater resources. This study used two clustering analysis methods to investigate the temporal patterns of groundwater levels in Australia's largest river system and identified six dominant patterns. The Millennium Drought had a significant impact on groundwater levels.
Article
Environmental Sciences
Jason Alexandra
Summary: Water extraction and climate change are fundamentally altering many rivers and wetlands around the world, intensifying competition for water resources. This paper examines the challenges of managing natural resources in a regime of climate change using the example of Australia's Murray-Darling Basin. It highlights the complexity of the science-policy interface, with differing risk cultures in scientific, governmental, political, and commercial sectors constraining adaptation planning.
Article
Agronomy
Mengjie Han, Qing Zhao, Wei Li, Philippe Ciais, Ying-Ping Wang, Daniel S. Goll, Lei Zhu, Zhe Zhao, Jingmeng Wang, Yuan Wei, Fengchang Wu
Summary: Biochar addition significantly increased SOC by 45.8% on average with regional variations, dependent on biochar application rates, initial SOC, edaphic, and climatic variables. The global CO2 removal of biochar application is 6.6 Tg CO(2)e year(-1) with a net revenue of $177 million dollars at a carbon price of $50 t(-1) CO2 for current pyrolysis plants, highlighting the potential revenue of biochar systems in regions like America and Europe.
GLOBAL CHANGE BIOLOGY BIOENERGY
(2022)
Article
Environmental Sciences
Baozhang Chen, Yu Ke, Philippe Ciais, Zhenzhong Zeng, Andy Black, Honggang Lv, Mengtian Huang, Wenping Yuan, Xiangming Xiao, Junjun Fang, Kun Hou, Ying-Ping Wang, Yiqi Luo
Summary: Global terrestrial vegetation dynamics have been rapidly altered by climate change. There has been a widespread increase in vegetation greenness from the 1980s to early this century, but in recent years, this trend has reversed in most tropical and low latitude regions while continuing to increase in northern high latitude regions. The reversal of greening trend is largely due to the inhibitive effects of excessive temperature and increasing water limitation. This reversal weakens the negative feedback of vegetation on the climate system.
Article
Environmental Sciences
Shangrong Lin, Zhongmin Hu, Yingping Wang, Xiuzhi Chen, Bin He, Zhaoliang Song, Shaobo Sun, Chaoyang Wu, Yi Zheng, Xiaosheng Xia, Liyang Liu, Jing Tang, Qing Sun, Fortunat Joos, Wenping Yuan
Summary: This study found that current TEMs substantially underestimate the interannual variability (IAV) of GPP, especially in nonforest ecosystem types. One possible cause is that the models underestimate the changes of canopy physiology responding to climate change. The differences between the simulated and observed interannual variations of leaf area index (LAI) also contribute to the underestimation of IAV.
GLOBAL BIOGEOCHEMICAL CYCLES
(2023)
Article
Biodiversity Conservation
Yan Sun, Daniel S. Goll, Yuanyuan Huang, Philippe Ciais, Ying-Ping Wang, Vladislav Bastrikov, Yilong Wang
Summary: Global change ecology is facing a bottleneck in the development of large-scale ecological models due to high computational requirements. To address this challenge, a machine-learning acceleration (MLA) tool is introduced to reduce the computation demand for equilibrating biogeochemical cycles in terrestrial biosphere models (TBMs). The MLA achieved a 77%-80% reduction in computation time by interpolating the equilibrated state of biogeochemical variables. Although there were minor biases in the MLA-derived equilibrium, it had a minimal impact on the predicted regional carbon balance.
GLOBAL CHANGE BIOLOGY
(2023)
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
Multidisciplinary Sciences
Feng Tao, Yuanyuan Huang, Bruce A. Hungate, Stefano Manzoni, Serita D. Frey, Michael W. I. Schmidt, Markus Reichstein, Nuno Carvalhais, Philippe Ciais, Lifen Jiang, Johannes Lehmann, Ying-Ping Wang, Benjamin Z. Houlton, Bernhard Ahrens, Umakant Mishra, Gustaf Hugelius, Toby D. Hocking, Xingjie Lu, Zheng Shi, Kostiantyn Viatkin, Ronald Vargas, Yusuf Yigini, Christian Omuto, Ashish A. Malik, Guillermo Peralta, Rosa Cuevas-Corona, Luciano E. Di Paolo, Isabel Luotto, Cuijuan Liao, Yi-Shuang Liang, Vinisa S. Saynes, Xiaomeng Huang, Yiqi Luo
Summary: Soils store more carbon than other terrestrial ecosystems, but how soil organic carbon (SOC) forms and persists remains uncertain, making it challenging to predict its response to climate change. This study investigates the role of microbial carbon use efficiency (CUE) in SOC persistence and finds that it is at least four times more important than other factors in determining SOC storage. Understanding the environmental dependence of microbial processes underlying CUE may help predict SOC feedback to a changing climate.
Article
Meteorology & Atmospheric Sciences
Chenyu Bian, Jianyang Xia, Xuanze Zhang, Kun Huang, Erqian Cui, Jian Zhou, Ning Wei, Ying-Ping Wang, Danica Lombardozzi, Daniel S. S. Goll, Jurgen Knauer, Vivek Arora, Wenping Yuan, Stephen Sitch, Pierre Friedlingstein, Yiqi Luo
Summary: Since the 1980s, significant land greening has been observed through satellite observation, forest inventory, and Earth system modeling. The relationship between global land greening and ecosystem carbon stock remains uncertain. This study examines the sensitivity of ecosystem carbon stock to leaf area index (LAI) using 40 global models and identifies the largest contributor to model uncertainty.
JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS
(2023)
Article
Environmental Sciences
Mengxiao Yu, Ying-Ping Wang, Jun Jiang, Nannan Cao, Zhongbing Chang, Shuo Zhang, Junhua Yan
Summary: Soil parent material has a significant impact on soil properties and the stabilization of carbon in subtropical soils. Mineral-associated organic carbon (MAOC) is the dominant form of soil carbon in these soils, and its formation is influenced by clay content, cation exchange capacity (CEC), and metal oxides. The co-precipitation of organic complexes with iron (Fe) is the main mechanism for SOC stabilization in subtropical forest soils.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2023)
Article
Multidisciplinary Sciences
Zhaoying Zhang, Alessandro Cescatti, Ying-Ping Wang, Pierre Gentine, Jingfeng Xiao, Luis Guanter, Alfredo R. Huete, Jin Wu, Jing M. Chen, Weimin Ju, Josep Penuelas, Yongguang Zhang
Summary: Photosynthesis and evapotranspiration in Amazonian forests have significant impacts on global carbon and water cycles. However, their diurnal patterns and responses to atmospheric warming and drying at regional scale are still not well understood. Using proxies from the International Space Station, we found a significant decrease in afternoon photosynthesis and evapotranspiration during the dry season, while morning photosynthesis showed a positive response to vapor pressure deficit (VPD) and afternoon photosynthesis showed a negative response. Furthermore, we projected that the decrease in afternoon photosynthesis will be compensated by an increase in the morning in future dry seasons. These findings provide new insights into the complex interplay between climate and carbon and water fluxes in Amazonian forests and improve the reliability of future projections.
Article
Soil Science
Shiting Xia, Jun Jiang, Fengcai Liu, Zhongbing Chang, Mengxiao Yu, Chunyi Liu, Ying-Ping Wang, Junhua Yan
Summary: Nitrogen addition drives ecosystems towards phosphorus limitation, while the effect of phosphorus addition on ecosystem nitrogen cycling processes is unclear. A meta-analysis of observational data from 222 independent studies was conducted to assess the responses of plant and soil nitrogen pools, and nitrogen fluxes to phosphorus addition at a global scale. The results showed that phosphorus addition had an overall positive impact on plant nitrogen uptake and ecosystem nitrogen retention, with increases in plant nitrogen pools and microbial nitrogen transformation, and a decrease in soil nitrogen leaching. The role of soil microbes in promoting plant nitrogen uptake was greater in mid-/high-latitude ecosystems, and the sensitivity of nitrogen-cycling variables to phosphorus addition was stronger in acidic or weathered soils. Incorporating these findings into terrestrial ecosystem nutrient-cycling models is crucial.
APPLIED SOIL ECOLOGY
(2023)
Article
Forestry
Yingzi Zhang, Shuguang Liu, Yingping Wang, Haiqiang Gao, Yan Jiang, Danmeng Wei
Summary: This study explored the most suitable detection methods for subtropical forest disturbance in Hunan Province using the LandTrendr algorithm, generating a forest disturbance dataset from 1991 to 2021. The overall accuracy of forest disturbance monitoring in Hunan Province was 86.39%, higher than the Global Forest Change products. Over the past 30 years, a total of 11103.25 km2 of forest has been disturbed in Hunan Province, accounting for 10.54% of the total forest area.
FOREST ECOLOGY AND MANAGEMENT
(2023)
Article
Environmental Sciences
Yongxian Su, Chaoqun Zhang, Philippe Ciais, Zhenzhong Zeng, Alessandro Cescatti, Jiali Shang, Jing Ming Chen, Jane Liu, Ying-Ping Wang, Wenping Yuan, Shushi Peng, Xuhui Lee, Zaichun Zhu, Lei Fan, Xiaoping Liu, Liyang Liu, Raffaele Lafortezza, Yan Li, Jiashun Ren, Xueqin Yang, Xiuzhi Chen
Summary: Changes in tree cover can affect surface temperatures due to asymmetric direct biophysical effects. The cooling effect of tree cover gain is greater in magnitude than the warming effect of tree cover loss in most forests. Neglecting this asymmetric temperature effect of fine-scale tree cover change ignores the fact that biophysical feedbacks continue to cause surface temperature changes even under net-zero tree cover changes. Thus, it is necessary to account for gross, rather than net, tree cover changes when quantifying the biophysical effects of forests.
NATURE CLIMATE CHANGE
(2023)
Article
Multidisciplinary Sciences
Ziqian Zhong, Bin He, Ying-Ping Wang, Hans W. Chen, Deliang Chen, Yongshuo H. Fu, Yaning Chen, Lanlan Guo, Ying Deng, Ling Huang, Wenping Yuan, Xingmin Hao, Rui Tang, Huiming Liu, Liying Sun, Xiaoming Xie, Yafeng Zhang
Summary: The influence of atmospheric vapor pressure deficit (VPD) on plant photosynthesis is well recognized, but its interactions with air temperature and soil moisture hinder a complete understanding of its impact on vegetation production. By excluding interactive effects, this study reveals a diverging response of productivity to VPD in the Northern Hemisphere. The interactions between VPD and temperature/soil moisture not only offset the potential positive impact of warming on vegetation productivity, but also amplify the negative effect of soil drying. Notably, there is a pronounced shift in vegetation productivity's response to VPD in high-latitude ecosystems when VPD surpasses a threshold of 3.5 to 4.0 hectopascals.
Article
Ecology
Shuo Zhang, Ying-Ping Wang, Xi Fang, Jinlei Chen, Nannan Cao, Pingping Xu, Mengxiao Yu, Xin Xiong, Xiangping Tan, Qi Deng, Junhua Yan
Summary: Changes in litter quality and above-ground biomass during vegetation restoration have significant impacts on soil properties, but their effects on soil microbial metabolic limitations are still unclear.
SOIL ECOLOGY LETTERS
(2023)
Article
Environmental Sciences
Zhongbing Chang, Lei Fan, Jean-Pierre Wigneron, Ying-Ping Wang, Philippe Ciais, Jerome Chave, Rasmus Fensholt, Jing M. Chen, Wenping Yuan, Weimin Ju, Xin Li, Fei Jiang, Mousong Wu, Xiuzhi Chen, Yuanwei Qin, Frederic Frappart, Xiaojun Li, Mengjia Wang, Xiangzhuo Liu, Xuli Tang, Sanaa Hobeichi, Mengxiao Yu, Mingguo Ma, Jianguang Wen, Qing Xiao, Weiyu Shi, Dexin Liu, Junhua Yan
Summary: This study compared the estimated dynamics of aboveground biomass carbon (AGC) in Chinese forests using remote sensing vegetation products and proposed an AGC estimation model. The results showed that tree cover had the highest consistency with the published AGC maps, and provinces in southwest China had the highest carbon sink rates.
JOURNAL OF REMOTE SENSING
(2023)
