Article
Engineering, Civil
Yi Guo, Qiang Huang, Shengzhi Huang, Guoyong Leng, Xudong Zheng, Wei Fang, Mingjiang Deng, Songbai Song
Summary: The study investigated the impact of mega reservoir on watershed drought tolerance and found that reservoirs can delay drought propagation, enhance drought tolerance, and effectively resist the influence of environmental changes.
JOURNAL OF HYDROLOGY
(2021)
Article
Environmental Studies
Ryke Nandini, Ambar Kusumandari
Summary: This study analyzes the trend of hydro-meteorological drought in the Dodokan watershed from 2009 to 2020 and explores the role of land use improvement in mitigating drought in the next 10 years. The results show an increasing drought in the watershed during the past years, while land use improvement through forest restoration is considered a more effective mitigation method. Simulation results successfully increase water surplus and reduce water deficit in the watershed by 2030, preparing for drought mitigation.
Article
Plant Sciences
Paula Diaz-Valencia, Luz Marina Melgarejo, Ivon Arcila, Teresa Mosquera-Vasquez
Summary: Water deficits are a major constraint in some potato-growing areas, especially at the tuberization stage, resulting in lower yield. A study in Colombia showed that genetic and phenotypic variations in response to water deficits can accelerate breeding efforts. The research also revealed that physiological, biochemical, and yield-component variables have broad variation, with tuber yield being more strongly correlated with drought tolerance in potato genotypes.
Article
Plant Sciences
Gabriel Luiz Piati, Sebastiao Ferreira de Lima, Renato Lustosa Sobrinho, Osvaldir Feliciano dos Santos, Eduardo Pradi Vendruscolo, Janaina Jacinto de Oliveira, Tassila Aparecida do Nascimento de Araujo, Khairiah Mubarak Alwutayd, Taciane Finatto, Hamada AbdElgawad
Summary: Climate change affects regular weather patterns and disrupts water regimes for corn crops. Plant growth regulators have the potential to mitigate the adverse effects of climate change on corn plants. Applying biostimulants can boost physiological activity and photosynthetic processes in corn plants.
Review
Agronomy
Debabrata Panda, Swati Sakambari Mishra, Prafulla Kumar Behera
Summary: Enhancing drought tolerance in rice varieties is crucial for addressing global food demand. Significant progress has been made in understanding the mechanisms involved in adaptation and tolerance to drought stress in rice over the past two decades. Breeding drought tolerant rice varieties remains a challenging task due to the complex nature and multigenic control of drought tolerant traits.
Review
Plant Sciences
Milan Kumar Lal, Rahul Kumar Tiwari, Awadhesh Kumar, Abhijit Dey, Ravinder Kumar, Dharmendra Kumar, Arvind Jaiswal, Sushil Sudhakar Changan, Pinky Raigond, Som Dutt, Satish Kumar Luthra, Sayanti Mandal, Madan Pal Singh, Vijay Paul, Brajesh Singh
Summary: In the face of climate change-induced heat and drought stress, the physiological, biochemical, and molecular responses of potatoes have undergone changes that ultimately affect tuber production and yield. Therefore, it is necessary to comprehensively screen germplasm and apply appropriate methods and strategies to cultivate potato cultivars that can thrive in drought-affected and heat-prone areas.
Article
Environmental Sciences
Qiang Liu, Liqiao Liang, Tao Sun, Xuan Wang, Chunhui Li, Sirui Yan
Summary: Climate change intensification leads to changes in catchment properties, resulting in uncertainties in describing catchment hydrological behavior. This study explores the hydrological response to multiyear drought and identifies the causes behind it. The results show that multiyear drought mainly causes changes in the precipitation-streamflow relationship. The severity of drought, leaf area index, and slope play a role in determining the magnitude of these changes. Catchment properties can alleviate the reduction in streamflow, but they also have negative effects.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Civil
Vishnu Prasad Pandey, Dibesh Shrestha, Mina Adhikari
Summary: This study analyzed historical and projected trends in climatic and hydrological extremes in a watershed in Central-Southern Nepal, and their relationship. The results showed increasing trends in precipitation and temperature extremes in the historical period, with future hydrological extremes, particularly floods, expected to continue rising.
JOURNAL OF HYDROLOGY
(2021)
Article
Environmental Sciences
Gregory J. McCabe, David M. Wolock
Summary: The analysis of the water balance in the southwestern United States from 1900 to 2018 revealed that during the turn-of-the-century drought, warm season soil moisture and runoff were at their lowest levels, with increased temperatures identified as a significant factor driving these conditions. However, during the cool seasons and the water year of the drought period, soil moisture and runoff did not show extremely dry conditions despite higher temperatures compared to the rest of the period between 1900 and 2018.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Agronomy
Godfrey Sseremba, Pangirayi Bernard Tongoona, Pascal Musoli, John Saviour Yaw Eleblu, Leander Dede Melomey, Daphne Nyachaki Bitalo, Evans Atwijukire, Joseph Mulindwa, Naome Aryatwijuka, Edgar Muhumuza, Judith Kobusinge, Betty Magambo, Godfrey Hubby Kagezi, Eric Yirenkyi Danquah, Elizabeth Balyejusa Kizito, Gerald Kyalo, Emmanuel Iyamulemye, Geofrey Arinaitwe
Summary: The study investigates the drought tolerance of half-sib seeds from selected Robusta coffee clones. The KR7 family shows the best performance in terms of tolerance to deficit watering, and a group of 10 individuals with high drought and heat tolerance potential are identified.
Article
Environmental Sciences
Anthony S. Kiem, George Kuczera, Pavel Kozarovski, Lanying Zhang, Garry Willgoose
Summary: This study presents an approach for stochastically generating future hydroclimatic conditions at multiple sites based on the relationship between temperature and rainfall in Australia, applied to catchments supplying Sydney. It found that future warming will lead to significant reductions in streamflow, impacting water security.
WATER RESOURCES RESEARCH
(2021)
Review
Microbiology
Shen Cheng, Ying-Ning Zou, Kamil Kuca, Abeer Hashem, Elsayed Fathi Abd Allah, Qiang-Sheng Wu
Summary: Drought stress is a significant abiotic stress that limits plant growth, and arbuscular mycorrhizal fungi can enhance plant adaptability and tolerance to drought stress, representing an eco-friendly strategy in sustainable agricultural systems. These fungi establish symbiotic relationships with host plants, participate in water absorption, nutrient uptake, and transfer, and modulate plant physiology to mitigate drought-induced injury and enhance drought tolerance. Identifying host genes responsible for enhanced drought tolerance is crucial for effective use of AM fungi.
FRONTIERS IN MICROBIOLOGY
(2021)
Review
Plant Sciences
Walid Sadok, Jose R. Lopez, Kevin P. Smith
Summary: As climate change intensifies, the frequency and intensity of high-temperature stress events are expected to increase, along with a global increase in evaporative demand. Studies have found that plants can increase transpiration rate in response to high-temperature stress, leading to a trade-off between latent heat dissipation and water conservation. Research is needed to investigate the mechanisms behind plant responses to high-temperature stress and design new crop varieties for enhanced productivity under warmer and drier climates.
PLANT CELL AND ENVIRONMENT
(2021)
Review
Environmental Sciences
Pamela Sofia Fabian, Hyun-Han Kwon, Meththika Vithanage, Joo-Heon Lee
Summary: The increasing frequency and intensity of extreme climate events are expected consequences of climate change that make the prediction of water quality parameters more challenging. This review aims to summarize the causal mechanisms across climate extremes considering water quality parameters and Asian water quality modeling methods associated with floods and droughts. It emphasizes the importance of understanding the connections between climate extreme events and water quality through collective efforts.
ENVIRONMENTAL RESEARCH
(2023)
Article
Forestry
Qi Zhang, Lixin Lyu, Yang Wang
Summary: This study investigated the responses of four tree species to short-term weather changes by monitoring their daily stem radial changes. The study found that different tree species showed distinct responses in terms of stem shrinkage and growth-induced expansion, which were primarily influenced by vapor pressure deficit and precipitation, respectively. With longer drought periods, some species exhibited rapid increases in stem shrinkage, while others showed slower and smaller increases.
Article
Multidisciplinary Sciences
Joao H. N. Palma, Rodrigo Hakamada, Gabriela Goncalves Moreira, Silvana Nobre, Luiz Carlos Estraviz Rodriguez
Summary: This paper presents a method to evaluate the impact of climate change on Eucalyptus plantations using a physiological model. The study shows that while overall rainfall is predicted to increase with climate change, the distribution throughout the year may not support tree growth. The approach provides insights into forest responses to different future climate conditions.
SCIENTIFIC REPORTS
(2021)
Review
Forestry
Rodrigo Hakamada, Renato Meulman Leite da Silva, Gabriela Goncalves Moreira, Jose Da Silva Teixeira, Simone Takahashi, Marcus Vinicius Masson, Karina Zamprogno Ferreira, Pietro Gragnolati Fernandes, Sarah Diniz Silva Martins
Summary: The study investigated the effects of Austropuccinia psidii on wood yield and light use efficiency in Eucalyptus plantations, with results showing a negative impact on both factors when the pathogen was present. Management strategies such as fungicide sprays were found to increase wood yield and LUE, highlighting the importance of disease control in Eucalyptus plantations.
Article
Meteorology & Atmospheric Sciences
Clayton Alcarde Alvares, Paulo Cesar Sentelhas, Henrique Boriolo Dias
Summary: This study used the Koppen climate classification to detect climate change in Piracicaba, southeastern Brazil, based on a historical series of 100 years. The results showed an increase in average annual air temperature and a change in climate type from subtropical to tropical. The study also found a correlation between local temperature and long-term air temperature anomalies at regional and global scales, indicating a possible link with increasing greenhouse gas emissions.
THEORETICAL AND APPLIED CLIMATOLOGY
(2022)
Article
Forestry
Yesid Alejandro Marino Macana, Robson Schaff Correa, Fabio Henrique Silva Floriano de Toledo, Alexandre de Vicente Ferraz, Eric Victor de Oliveira Ferreira, Rodrigo Eiji Hakamada, Gabriela Goncalves Moreira, Jose Carlos Arthur Junior, Jose Leonardo de Moraes Goncalves
Summary: Application of dolomitic limestone and gypsum can stimulate root development and enhance access to water in Eucalyptus plantations in the Brazilian savanna. It also positively impacts soil fertility and improves the growth and wood volume of Eucalyptus trees.
Article
Agronomy
Raynara Ferreira da Silva, Rodrigo Hakamada, Moema Barbosa de Sousa, Graziele Nunes Lopes dos Santos
Summary: This study examined the growth, survival rate, and biomass content of Khaya senegalensis in both a pure plantation system and an agroforestry system with banana and corn. The results showed no significant difference in survival rate and wood density between the two systems. However, individual growth and overall yield were higher in the pure plantation system. The agroforestry system, on the other hand, had additional banana and corn production. Overall, the pure plantation system had a higher aboveground biomass accumulation. Therefore, agroforestry could be a viable alternative for small farmers looking to optimize land use and reduce establishment costs.
AGROFORESTRY SYSTEMS
(2023)
Article
Forestry
Emily Tsiemi Shinzato, Gabriela Goncalves Moreira, Karina Ferreira, Silvio Frosini de Barros Ferraz, Rodrigo Hakamada
Summary: Forest roads can have significant environmental impacts if not well planned. This study used hydrological indexes to identify road segments with high potential for maintenance, based on factors such as slope, flood risk, and erodibility.
SCIENTIA FORESTALIS
(2023)
Article
Forestry
Rodrigo Hakamada, Dan Binkley, Italo Cegatta, Clayton Alvares, Otavio Campoe, Jose Luiz Stape
Summary: Stocking in forests has a significant impact on stand growth, resource capture, tree survival, and competition between trees and understory vegetation. A study conducted on the TECHS experimental platform across a 2100 km geographic gradient found that wood production and quality were influenced by stocking levels. The study showed that an increase in stocking led to increased growth, with the driest and most productive sites showing the highest response.
FOREST ECOLOGY AND MANAGEMENT
(2023)
Article
Forestry
Rodrigo Hakamada, Lorena Paulina Santos, Sara Bandeira, Rosilvam Ramos, Gardenia Gonsalves
Summary: This article examines the direct relationship between forestry research and the issue of climate change. The study analyzed 5,210 theses from Brazilian forestry-related postgraduate programs between 2013 and 2022, and 2,228 articles published in ten forestry journals in 2022. The findings indicate a limited focus on climate change in the theses, while the journals show a better development of this focus, with a significant percentage directly studying climate change and its impacts. Opportunities for improvement in the science related to climate change and forestry are proposed, including the need for substantive connections and insights in research papers, an increase in graduate students working directly with climate change, and a more balanced approach to different types of forests.
FOREST ECOLOGY AND MANAGEMENT
(2023)
Article
Forestry
Rodrigo Hakamada, Silvio Frosini de Barros Ferraz, Belkis Sulbaran-Rangel, Luiza Lucena, Hasbleidy Palacios Hinestroza
Summary: The employment rate and organizational interest in high-skilled professionals are important drivers for universities to improve the qualifications of college students. By investigating the sectors of employment pursued by forestry engineering graduates and surveying companies affiliated with the Forest Science and Research Institute (IPEF), it was found that there is a significant potential for employment in the forestry sector, with noticeable growth in the past five years. This growth is attributed to market demand and changes in action plans.
Article
Forestry
Clayton Alcarde Alvares, Italo Ramos Cegatta, Henrique Ferraco Scolforo, Reginaldo Goncalves Mafia
Summary: This study used spatial data science and machine learning techniques to develop a decision tree model for predicting Eucalyptus productivity in Brazil. The model achieved high accuracy and provided a reliable cartographic visualization tool for assessing forest resource management.
Article
Forestry
Gabriela Goncalves Moreira, Rodrigo Hakamada, Renato Meulman Leite de Silva, Cristiane Camargo Zani de Lemos, Antonio Leite Florentino, Jose Leonardo de Moraes Goncalves
Summary: The objective of this study was to evaluate the losses, survival, uniformity, and growth of a clonal planting of Eucalyptus grandis x Eucalyptus urophylla in Brazil during a short rotation, based on the different morphological characteristics of the seedlings as indicators of quality. The quality of seedlings was positively correlated with stem diameter, leaf biomass, and PH50 at 60 days of age, but these relationships lost significance over time. Only the old seedlings showed a difference in wood volume compared to the other treatments during the 36 to 64 month period.
Article
Forestry
Rodrigo Hakamada, Silvio Frosini de Barros Ferraz, Belkis Sulbaran-Rangel
Summary: This study investigated the current scenario and trends regarding human resources in the forest sector. The findings suggest a shortage of qualified professionals in the job market and a lack of behavioral skills training. New college graduates were found to lack important soft skills and knowledge in certain areas. However, there was a convergence between job requirements and the skills considered important by new graduates.
Article
Environmental Sciences
Rodrigo Hakamada, Jesus Prados-Coronado, Cassiano Lages, Arthur Vrechi, Virgilio Zuniga-Grajeda, Freddy Hernan Villota-Gonzalez, Belkis Sulbaran-Rangel
Summary: This study evaluated the impact of different stocking densities on the growth of Gmelina arborea and the efficacy of using drones to capture aerial images of tree crown cover. The results showed that higher stocking densities led to better tree growth and that Gmelina arborea has promising carbon storage capacity. Using simple cameras and drones proved effective in detecting and estimating crown areas, although the presence of weeds reduced effectiveness.
Article
Forestry
Rodrigo E. Hakamada, Dan Binkley, Eduardo More Mattose
Summary: Eucalyptus plantations in Brazil exhibit high productivity but significant growth differences. This study found that variation in light use and light use efficiency contribute to the growth disparities across the 1100 km environmental gradient. Differences in clones also play a crucial role in growth variation at each site. Notably, water deficit does not directly affect light use, but rather results in a decline in light use efficiency as water deficit increases by 100 mm per year.
FOREST ECOLOGY AND MANAGEMENT
(2023)
Article
Forestry
Rodrigo E. Hakamada, Gabriela G. Moreira, Pietro Gragnolati Fernandes, Sarah Diniz Silva Martins
Summary: This study investigated the effects of harvesting method, stump height, and stump cleaning on growth, above-ground biomass, and light use efficiency of Eucalyptus trees in Brazil. Results showed that mechanized harvesting method reduced growth rate, low stumps decreased growth, and stump cleaning had an impact on survival rate.
TREES FORESTS AND PEOPLE
(2022)
