Article
Environmental Sciences
Zachary H. Lauffenburger, Marco P. Maneta, Perry Miller, John S. Kimball
Summary: Increasing climate aridity and drought, exacerbated by global warming, are increasing risks for western U.S.A. rainfed farming, and challenging producers' capacity to maintain production and profitability. With agricultural water demand in the region exceeding limited supplies and fewer opportunities to develop new water sources, rainfed agriculture is under increasing pressure to meet the nation's growing food demands.
ENVIRONMENTAL RESEARCH LETTERS
(2023)
Article
Computer Science, Artificial Intelligence
Gary D. Gillespie, Kevin P. McDonnell, Gregory M. P. O'Hare
Summary: Machine learning algorithms were found to be more accurate in classifying leaf wetness measurements compared to empirical models, with an average increase in classification accuracy of 4.85%. Increasing the relative humidity threshold improved the accuracy of the empirical models by 1.12%. Regional subsets of data had a greater impact on model accuracy than temporal subsets.
EXPERT SYSTEMS WITH APPLICATIONS
(2021)
Article
Agriculture, Multidisciplinary
Hanna Sjulgard, Tino Colombi, Thomas Keller
Summary: In Sweden, crop species diversity is strongly influenced by latitude and associated mean annual temperature. Mean annual precipitation and soil texture have no significant relationship with crop diversity. There is no significant change in crop diversity at the national level, but temporal trends vary between counties. Some counties show an increase in crop diversity over time, while others show no change or a decrease. Socioeconomic factors likely play a role in these temporal changes.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2022)
Article
Environmental Sciences
David Wuepper, Fiona H. M. Tang, Robert Finger
Summary: There is an urgent need to reduce the environmental risk of pesticide pollution worldwide. We explored national leverage points and found that differences in countries' agricultural systems and policies contribute to a third of the global cross-country differences in pesticide pollution risk. Pesticide regulations, organic farming, and crop types are the main leverage points for policies.
GLOBAL ENVIRONMENTAL CHANGE-HUMAN AND POLICY DIMENSIONS
(2023)
Review
Agriculture, Multidisciplinary
Joerg Leukel, Tobias Zimpel, Christoph Stumpe
Summary: Machine learning has become a vital technology for crop yield prediction models. This study focuses on the early prediction of grain yield at the field scale using ML approaches. Through a systematic search, 46 studies were identified, revealing the diversity of ML techniques used, the richness of data collection and preprocessing, and the challenges in performance evaluation and reporting.
COMPUTERS AND ELECTRONICS IN AGRICULTURE
(2023)
Article
Agronomy
Letusa Momesso, Carlos Alexandre Costa Crusciol, Carlos Antonio Costa do Nascimento, Rogerio P. Soratto, Lucas Pecci Canisares, Luiz Gustavo Moretti, Ciro Antonio Rosolem, Paulo Cesar Ocheuze Trivelin, Eiko Eurya Kuramae, Heitor Cantarella
Summary: Early nitrogen application on live cover crops or their residues can meet nitrogen demand and increase the yield of subsequent cash crops in tropical regions. The conventional method of nitrogen fertilizer application allows higher nitrogen recovery and maize yield.
EUROPEAN JOURNAL OF AGRONOMY
(2022)
Article
Environmental Sciences
Stefano Marino, Arturo Alvino
Summary: This study utilized remote sensing techniques for wheat cultivar classification and agronomic trait detection. The cluster method based on vegetation indices showed significant ability in monitoring and evaluating wheat crop agronomic traits.
Article
Environmental Sciences
Rose Z. Abramoff, Philippe Ciais, Peng Zhu, Toshihiro Hasegawa, Hitomi Wakatsuki, David Makowski
Summary: Simulations of crop yield under climate change show significant variations depending on models, locations, species, management strategies, and Representative Concentration Pathways. A meta-model based on site-level simulations was developed to understand the effects of climate and adaptation on yield change for maize, rice, wheat, and soybean. The study found that adaptation plays a crucial role in mitigating projected yield losses under the RCP4.5 scenario, with most influential factors being adaptation strategy and climate change. These results highlight the importance of implementing adequate adaptation strategies to mitigate the impact of climate change on crop yields.
Article
Plant Sciences
Ruichen Yang, Liya Tang, Dong Zhao, Wenxin Huang, Yunbing Luo
Summary: The Wanfunao site, a large Chu settlement in the Zhou Dynasty, was located on the alluvial plain along the Yangtze River in the Yichang section. In addition to rice, the site also yielded evidence of the cultivation of seven dryland crops, indicating that northern crops gradually spread southward and became part of the diet in southern China, alongside rice.
FRONTIERS IN PLANT SCIENCE
(2022)
Review
Ecology
Ruben Milla
Summary: Food crops are essential for nutrition and produce billions of tons of food annually. The traits of crops play a significant role in regulating ecosystem processes, but domestication has led to changes in these traits. This paper reviews the evidence of how ecological traits of herbaceous crops have evolved during and after domestication, highlighting the loss of seed dispersal mechanisms and changes in plant size and decomposition rates. The paper also discusses traits that have not shown common responses to domestication and research gaps in the field. Understanding crop interactions with organisms and the environment is crucial for breeding crops that meet the needs of agriculture.
FUNCTIONAL ECOLOGY
(2023)
Article
Soil Science
Juan P. Frene, Eva Figuerola, Luciano A. Gabbarini, Leonardo Erijman, Luis G. Wall
Summary: This on-farm study investigates the effects of no-till agricultural diversification and intensification of crop rotations (DICR) on soil biological properties. The results show that DICR can alter the composition of soil microbiota, which can contribute to the design of more sustainable agricultural systems.
APPLIED SOIL ECOLOGY
(2022)
Article
Environmental Studies
Meenakshi Rajeev, Pranav Nagendran
Summary: Small-scale agriculturists in developing countries face weather-related risks exacerbated by climate change. Despite efforts to introduce formal crop insurance, insurance penetration rates remain low in less developed countries. Reliance on informal credit as a risk-coping mechanism and socioeconomic factors influence the adoption of crop insurance. Informal interest rates are positively correlated with the probability of taking up crop insurance, and disparities exist based on economic and social classes. The study provides policy implications for enhancing insurance penetration among poor farmers.
Article
Environmental Sciences
Md Didarul Islam, Liping Di, Faisal Mueen Qamer, Sravan Shrestha, Liying Guo, Li Lin, Timothy J. J. Mayer, Aparna R. R. Phalke
Summary: This study developed a rapid rice yield estimation workflow and customized yield prediction model by integrating remote sensing and meteorological data with machine learning. Data quality issues, data processing issues, selecting a suitable machine learning model, and understanding the non-linear relationship between historical crop yield and remote sensing and meteorological factors were addressed. The study found that incorporating meteorological variables into the machine learning models improved estimation accuracy, and stacking multiple tree-based regression models achieved better accuracy.
Article
Agriculture, Multidisciplinary
Lei Chen, Yiwen Wang, Nian Yang, Kaihang Zhu, Xiaoman Yan, Zhaohai Bai, Limei Zhai, Zhenyao Shen
Summary: This study investigates the agricultural and environmental benefits of crop-livestock integration through numerical experiments at different spatial scales. It identifies the optimal ratio of replacing chemical fertilizer with manure at the watershed scale and suggests spatial configuration for large-scale crop-livestock integration. The study also highlights the importance of balancing water quality protection and agricultural production.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2023)
Article
Plant Sciences
Brent W. Warneke, Lloyd L. Nackley, Jay W. Pscheidt
Summary: This study evaluated the efficacy of using the Intelligent Spray System (ISS) to manage grape powdery mildew. The results showed that with appropriate adjustments, this spray system can effectively reduce pesticide quantities and labor requirements.
Article
Geography, Physical
Ke-Yang He, Hou-Yuan Lu, Yong-Ning Li, Feng-Ya Ding, Jianping Zhang, Can Wang
Article
Environmental Sciences
Hongyan Xu, Hanchao Jiang, Kam-biu Liu, Ning Zhong
ENVIRONMENTAL RESEARCH LETTERS
(2020)
Article
Multidisciplinary Sciences
Jianping Zhang, Houyuan Lu, Jiwei Jia, Caiming Shen, Shuyun Wang, Guoqiang Chu, Luo Wang, Anning Cui, Jiaqi Liu, Naiqin Wu, Fengjiang Li
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2020)
Article
Geosciences, Multidisciplinary
Anning Cui, Houyuan Lu, Xingqi Liu, Caiming Shen, Deke Xu, Baiqing Xu, Naiqin Wu
Summary: By reconstructing a 1,656-year mean annual precipitation record using fossil pollen assemblages from the annually laminated sediments of a lake in the Tibetan Plateau, researchers have identified three dominant precipitation cycles of approximately 200, 88, and 60 years. These cycles suggest that the current high precipitation in the region may continue for the next several decades, as it results from the superposition of cyclic highs in precipitation.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Environmental Sciences
Marcelo Cancela Lisboa Cohen, Adriana Vivan de Souza, Kam-Biu Liu, Erika Rodrigues, Qiang Yao, Luiz Carlos Ruiz Pessenda, Dilce Rossetti, Junghyung Ryu, Marianne Dietz
Summary: RSL rise, decreased fluvial sediment discharge, and increased hurricane activity have contributed to shoreline retreat in Port Fourchon, Louisiana, threatening coastal ecosystems. The study analyzed shoreline dynamics on mangroves and marshes before and after a beach nourishment project in 2013, showing that the project resulted in advancements in the beach barrier but also caused erosion and long-term shoreline retreat.
Article
Environmental Sciences
Marianne E. Dietz, Kam-biu Liu, Thomas A. Bianchette, Denson Smith
Summary: The study found that Hurricanes Gustav and Ike in 2008 left a 21 cm thick deposition layer on the coastal Louisiana, with distinct geochemical profiles indicating a strong influence of marine-derived elements during Gustav and a dominance of terrestrially-derived elements during Ike. This suggests that the storm deposits in each core were deposited through two distinct hydrological processes: a storm surge-driven marine intrusion event during Gustav, followed by a mixture of storm-surge and fluvial deposition resulting from Ike. The results highlight the importance of considering the role of fluvial freshwater deposition in hurricane-generated deposition in coastal environments.
ENVIRONMENTAL RESEARCH COMMUNICATIONS
(2021)
Article
Geography, Physical
Xiujia Huan, Jianping Zhang, Yijie Zhuang, Chou Fan, Ningyuan Wang, Xiang Ji, Konglan Shao, Keyang He, Jianhui Jin, Xinxin Zuo, Houyuan Lu
Summary: This study examines the impact of rice cultivation on the surrounding vegetation and landscapes through sampling and dating of sediment from the Mifenglong reservoir in the Liangzhu hydraulic system. The results show that intensive rice farming practices between 2500 cal BP and 1500 cal BP transformed the environment through deforestation and changes in plant structure.
QUATERNARY INTERNATIONAL
(2022)
Article
Geosciences, Multidisciplinary
Shichen Tao, Kam-biu Liu, Kefu Yu, Qi Shi, Hongqiang Yan, Huiling Zhang, Luo Wang, Zhongzhou Huang, Tegu Chen
Summary: The study found that tropical cyclone activity over the past millennium is influenced by factors such as sea temperature and NINO3.4, with varying frequencies of tropical cyclones in different climate periods, showing a significant trend of north-south migration. As global warming continues, the paths and landfall locations of tropical cyclones will continue to migrate northward.
PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
(2021)
Article
Environmental Sciences
Qiang Yao, Marcelo Cancela Lisboa Cohen, Kam-biu Liu, Adriana Vivan de Souza, Erika Rodrigues
Summary: This study investigates the shoreline dynamics near Port Fourchon, Louisiana using high-resolution spatial-temporal analysis. The analysis shows that consecutive landfalls of Hurricanes Zeta and Ida resulted in a reduction of the beachfront volume and retreat of the shoreline. The study suggests that the beach nourishment project was successful in stabilizing the beach at Port Fourchon but not enough to protect the shoreline at the Mississippi River Delta. The research supports the prediction that Bay Champagne will disappear into the Gulf of Mexico within the next 40 years.
Article
Environmental Sciences
Xiaomei Nian, Weiguo Zhang, Xiaoting Wang, Simon M. Hutchinson, Xuanqi Zhao, Kam-biu Liu
Summary: The reconstruction of sediment accumulation in the Yangtze River Delta over the last two millennia reveals the influence of climate change and human activities on delta growth. Wetter conditions and increased human activities have contributed to higher sediment deposition and delta expansion. However, the current climate warming and human interventions in sediment supply pose a significant risk to the future survival of the delta.
Article
Multidisciplinary Sciences
Yajie Dong, Naiqin Wu, Fengjiang Li, Dan Zhang, Yueting Zhang, Caiming Shen, Houyuan Lu
Summary: Analyzing terrestrial mollusk assemblages from northern China, we found that the long-term warming trend and seasonal bias explanation observed in climate simulations during the Holocene does not align with the independent evidence from mollusk records. Summer and winter temperatures have a greater contribution to the mean annual temperature (MAT) than spring and autumn temperatures.
NATURE COMMUNICATIONS
(2022)
Article
Geochemistry & Geophysics
Qiang Yao, Kam-biu Liu, Zhenqing Zhang, Erika Rodrigues, Marcelo Cohen, Kanchan Maiti, Yang Yang
Summary: Despite numerous studies on reconstructing millennial-scale hurricane patterns, there is still uncertainty regarding the most effective proxies for identifying storm surge deposits in different environmental settings. This study quantitatively compared various proxies and found that only 9 out of 27 parameters showed significant differences between storm-surge and in situ deposits. The study also revealed the marine indicators that are closely associated with allochthonous samples and the sensitive proxies in different energy environments.
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
(2023)
Article
Multidisciplinary Sciences
Erika Rodrigues, Kam Biu Liu, Paulo Eduardo De Oliveira, Beatriz L. Figueiredo, Qiang Yao
Summary: This dataset describes modern and fossil diatom and pollen from the Gulf Coast region of the United States. It includes an illustrated and descriptive atlas of diatom and pollen with micrographs and detailed descriptions of various species. The diatom atlas is referenced from the LSU Global Change and Coastal Paleoecology Laboratory's collection, and the datasets are associated with research articles by Yao et al.
Article
Multidisciplinary Sciences
Deke Xu, Houyuan Lu, Guoqiang Chu, Caiming Shen, Qing Sun, Jing Wu, Fengjiang Li, Bing Song, Anning Cui, Hao Li, Naiqin Wu
Summary: Climate changes during the last deglaciation had significant impacts on vegetation in East Asia. The rate and pattern of vegetation succession were found to be closely related to large-scale climatic events and regional hydrothermal conditions.
