Results 21 to 30 of about 360,351 (166)

Spatial variability of apparent electrical conductivity and soil properties in a coffee production field [PDF]

Engenharia Agrícola, 2014
Precision agriculture based on the physical and chemical properties of soil requires dense sampling to determine the spatial variability of these properties. This dense sampling is often expensive and time-consuming.
Domingos S. M. Valente, Daniel M. de Queiroz, Francisco de A. de C. Pinto, Fábio L. Santos, Nerilson T. Santos   +4 more
doaj   +1 more source

Indian Summer Monsoon Rainfall: Implications of Contrasting Trends in the Spatial Variability of Means and Extremes.

PLoS ONE, 2016
India's agricultural output, economy, and societal well-being are strappingly dependent on the stability of summer monsoon rainfall, its variability and extremes.
Subimal Ghosh, H Vittal, Tarul Sharma, Subhankar Karmakar, K S Kasiviswanathan, Y Dhanesh, K P Sudheer, S S Gunthe   +7 more
doaj   +1 more source

Influence of rock mass spatial variability on probability of tunnel roof wedge failure

Rock and Soil Mechanics, 2021
In tunnel design and construction, the stability evaluation of tunnel roof wedge usually adopts traditional deterministic analysis methods, which cannot appropriately reflect the spatial variability of rock mass.
ZHANG Wen-gang, WANG Qi, LIU Han-long, CHEN Fu-yong   +3 more
doaj   +1 more source

Spatial variability of low frequency brain signal differentiates brain states.

PLoS ONE, 2020
Temporal variability of the neural signal has been demonstrated to be closely related to healthy brain function. Meanwhile, the evolving brain functions are supported by dynamic relationships among brain regions.
Yifeng Wang, Yujia Ao, Qi Yang, Yang Liu, Yujie Ouyang, Xiujuan Jing, Yajing Pang, Qian Cui, Huafu Chen   +8 more
doaj   +1 more source

Variability of climate, water and nitrogen status and its influence on vine phenology and grape composition inside a small winegrowing estate

E3S Web of Conferences, 2018
Climate is a major terroir factor in viticulture. In winegrowing regions, climate is studied at an increasingly refined scale. Results from the Life ADVICLIM project show substantial spatial variability of temperatures inside the region of Saint-Emilion,
de Rességuier Laure, Le Roux Renan, Petitjean Théo, Mary Séverine, Quénol Hervé, van Leeuwen Cornelis   +5 more
doaj   +1 more source

Spatial and Temporal Trends of Irrigated Cotton Yield in the Southern High Plains

Agronomy, 2018
Understanding spatial and temporal variability patterns of crop yield and their relationship with soil properties can provide decision support to optimize crop management.
Wenxuan Guo
doaj   +1 more source

Spatial variability in soil pH and land use as the main influential factor in the red beds of the Nanxiong Basin, China [PDF]

PeerJ, 2019
Soil pH is the main factor affecting soil nutrient availability and chemical substances in soil. It is of great significance to study the spatial variability of soil pH for the management of soil nutrients and the prediction of soil pollution.
Ping Yan, Hua Peng, Luobin Yan, Shaoyun Zhang, Aimin Chen, Kairong Lin   +5 more
doaj   +2 more sources

Contribution of microbial activity and vegetation cover to the spatial distribution of soil respiration in mountains

Frontiers in Microbiology, 2023
The patterns of change in bioclimatic conditions determine the vegetation cover and soil properties along the altitudinal gradient. Together, these factors control the spatial variability of soil respiration (RS) in mountainous areas.
Sofia Sushko, Sofia Sushko, Lilit Ovsepyan, Olga Gavrichkova, Olga Gavrichkova, Ilya Yevdokimov, Alexandra Komarova, Anna Zhuravleva, Sergey Blagodatsky, Maxim Kadulin, Kristina Ivashchenko   +10 more
doaj   +1 more source

Assessment of Spatial Variability in Ground Models Using Mini-Cone Penetration Testing

Applied Sciences
The assessment of spatial variability in the ground through field experiments has many constraints due to non-homogenous ground conditions and lack of site investigations.
Sugeun Jeong, Yonghee Lee, Haksung Kim, Jeongseon Park, Daehyeon Kim   +4 more
doaj   +1 more source

Variability of ambient air ammonia in urban Europe (Finland, France, Italy, Spain, and the UK)

Environment International
This study addressed the scarcity of NH3 measurements in urban Europe and the diverse monitoring protocols, hindering direct data comparison. Sixty-nine datasets from Finland, France, Italy, Spain, and the UK across various site types, including ...
Xiansheng Liu, Rosa Lara, Marvin Dufresne, Lijie Wu, Xun Zhang, Tao Wang, Marta Monge, Cristina Reche, Anna Di Leo, Guido Lanzani, Cristina Colombi, Anna Font, Annalisa Sheehan, David C. Green, Ulla Makkonen, Stéphane Sauvage, Thérèse Salameh, Jean-Eudes Petit, Mélodie Chatain, Hugh Coe, Siqi Hou, Roy Harrison, Philip K. Hopke, Tuukka Petäjä, Andrés Alastuey, Xavier Querol   +25 more
doaj   +1 more source