Results 91 to 100 of about 50,365 (286)

Efeito do extrato aquoso do algodão de seda (Calotropis procera Aiton) sobre a eficiência reprodutiva do carrapato bovino Effect of aqueous extract of silk cotton (Calotropis procera Ait. R.Br.) on the reproductive performance of Rhipicephalus microplus

Revista Brasileira de Plantas Medicinais, 2012
O carrapato Rhipicephalus microplus é um dos principais parasitos dos rebanhos bovinos. Diferentes grupos de carrapaticidas sintéticos têm sido empregados para o controle desse ácaro, contudo, o uso constante desses produtos tem selecionado populações ...
S.F Lázaro, L.D Fonseca, R.C Fernandes, J.S Tolentino, E.R Martins, E.R. Duarte   +5 more
doaj   +1 more source

Building a System Dynamics Model to Support Water Management: A Case Study of the Semiarid Region in the Brazilian Northeast

, 2019
In recent centuries, water consumption rates have more than doubled and the population growth rate is rising constantly. As a result, water scarcity is now one of the main problems to be faced, mainly in semiarid regions. In light of such a dilemma, this
Oz Sahin, Oliveira Esquerre, Karla Patricia, Sahin, Oz, Karla Oliveira Esquerre, Wanderbeg Correia de Araujo, de Araujo, Wanderbeg Correia   +5 more
core   +1 more source

Revealing Dust Source Changes in East Asia From Past to Future: An Interpretable Deep Learning Approach

Land Degradation &Development, EarlyView.
ABSTRACT Aeolian dust source areas are controlled by climate and human activities and are closely associated with land degradation, yet their long‐term evolution under global warming remains insufficiently quantified. An integrated framework that couples a U‐Net segmentation model with Shapley Additive Explanations (SHAP) was built to map and attribute
Yanyu Li, Qizhong Wu, Xueshun Chen, Jiang Yue, Jieying He, Huaqiong Cheng   +5 more
wiley   +1 more source

Integrated export instream coefficient model for accurate nonpoint source pollution estimation and management in the Yellow River Basin

Scientific Reports
The export coefficient model (ECM) remains widely applied in estimating agricultural Non-point Source Pollution (NPSP) due to its simplicity, minimal parameter requirements, and relatively high accuracy.
Xueting Wang, Lei Wu, Yongkun Luo, Yimu Liu, Ruowen Wang   +4 more
doaj   +1 more source

Soybean (Glycine max L.) Leaf Moisture Estimation Based on Multisource Unmanned Aerial Vehicle Image Feature Fusion

Plants
Efficient acquisition of crop leaf moisture information holds significant importance for agricultural production. This information provides farmers with accurate data foundations, enabling them to implement timely and effective irrigation management ...
Wanli Yang, Zhijun Li, Guofu Chen, Shihao Cui, Yue Wu, Xiaochi Liu, Wen Meng, Yucheng Liu, Jinyao He, Danmao Liu, Yifan Zhou, Zijun Tang, Youzhen Xiang, Fucang Zhang   +13 more
doaj   +1 more source

Common‐garden experimental evaluation of phylogenetic and functional diversity as drivers of plant performance

Oikos, EarlyView.
Biodiversity is known to influence the performance of coexisting species and has been proposed as a management tool to enhance the resilience and functioning of plant communities under drought. However, experimental studies to disentangle the roles of phylogenetic and functional diversity as drivers of plant performance remain extremely scarce.
Arantzazu L. Luzuriaga, Laura Ortiz, Laura Rodríguez, Pablo Ferrandis   +3 more
wiley   +1 more source

Monitoring Soybean Soil Moisture Content Based on UAV Multispectral and Thermal-Infrared Remote-Sensing Information Fusion

Plants
By integrating the thermal characteristics from thermal-infrared remote sensing with the physiological and structural information of vegetation revealed by multispectral remote sensing, a more comprehensive assessment of the crop soil-moisture-status ...
Hongzhao Shi, Zhiying Liu, Siqi Li, Ming Jin, Zijun Tang, Tao Sun, Xiaochi Liu, Zhijun Li, Fucang Zhang, Youzhen Xiang   +9 more
doaj   +1 more source

Drought intensifies dominant competitor avoidance and risk‐dependent habitat selection in a large carnivore guild

Oikos, EarlyView.
Intraguild competition is a key force structuring predator communities, with dominant species impacting subordinate species' space use and access to resources. Climate change may intensify or reshape these processes, yet how climate conditions interact with dominance to influence predator space use and resource selection remains poorly understood.
Anna C. Nisi, Leigh West, Meghan Halabisky, Neil R. Jordan, Robynne Kotze, Andrew J. Loveridge, J. W. McNutt, John Neelo, Laura R. Prugh, Kasim Rafiq, Lara L. Sousa, Alan M. Wilson, Lukas Bierhoff, Briana Abrahms   +13 more
wiley   +1 more source

Combining UAV Multispectral and Thermal Infrared Data for Maize Growth Parameter Estimation

Agriculture
The leaf area index (LAI) and leaf chlorophyll content (LCC) are key indicators of crop photosynthetic efficiency and nitrogen status. This study explores the integration of UAV-based multispectral (MS) and thermal infrared (TIR) data to improve the ...
Xingjiao Yu, Xuefei Huo, Long Qian, Yiying Du, Dukun Liu, Qi Cao, Wen’e Wang, Xiaotao Hu, Xiaofei Yang, Shaoshuai Fan   +9 more
doaj   +1 more source

Obtenção dos fluxos de energia à superfície utilizando o algoritmo S-SEBI Surface energy fluxes estimative using the S-SEBI algorithm

Revista Brasileira de Meteorologia, 2010
O principal objetivo desse estudo foi contribuir para a compreensão das estimativas e análises espaciais dos fluxos de energia à superfície, utilizando o algoritmo S-SEBI e imagens Landsat 5 - TM, assim como, validar os resultados com medidas obtidas na ...
Carlos Antonio Costa dos Santos, Bernardo Barbosa da Silva   +1 more
doaj   +1 more source