Results 11 to 20 of about 385,300 (264)

Vegetation structure determines the spatial variability of soil biodiversity across biomes

open access: yesScientific Reports, 2020
The factors controlling the spatial variability of soil biodiversity remain largely undetermined. We conducted a global field survey to evaluate how and why the within-site spatial variability of soil biodiversity (i.e. richness and community composition)
Jorge Durán, Manuel Delgado-Baquerizo
doaj   +1 more source

Spatial variability of global lake evaporation regulated by vertical vapor pressure difference

open access: yesEnvironmental Research Letters, 2022
Evaporation ( E ) from about 300 million lakes worldwide without plant physiological constraints directly reflects hydrological response to atmospheric forcings.
Umar Farooq   +5 more
doaj   +1 more source

Simplified methods for deformation analysis of tunnel structures considering spatial variability of soil properties

open access: yesYantu gongcheng xuebao, 2022
The spatial variability of soil properties is widely accepted, and the response of a geo-structure can be significantly affected by the spatial variability of the surrounding soil mass.
ZHANG Jin-zhang 1, 2, HUANG Hong-wei 1, ZHANG Dong-ming 1, PHOON Kok-kwang 2, TANG Chong 2
doaj   +1 more source

Analysis of the spatial variability on a fracture network based on an oriented semivariogram

open access: yes地质科技通报, 2023
Using an oriented semivariogram in geostatistics, this paper studied the spatial variability of the fissure network of Lianhuashan fault and Wuzhishan anticline in Gejiu Gaosong Ore Field.
Yu Huang   +4 more
doaj   +1 more source

Satisfiability of a Spatial Logic with Tree Variables [PDF]

open access: yes, 2007
We investigate in this paper the spatial logic TQL for querying semi-structured data, represented as unranked ordered trees over an infinite alphabet. This logic consists of usual Boolean connectives, spatial connectives (derived from the constructors of a tree algebra), tree variables and a fixpoint operator for recursion.
Filiot, Emmanuel   +2 more
openaire   +3 more sources

Spatial and temporal variability of iodine in aerosol [PDF]

open access: yesJournal of Geophysical Research: Atmospheres, 2020
In this work we describe the compilation and homogenization of an extensive dataset of aerosol iodine field observations in the period between 1963 and 2018 and we discuss the spatial and temporal dependences of total iodine in bulk aerosol by comparing the observations with CAM-Chem model simulations. Total iodine in aerosol shows a
Juan Carlos Gomez Martin   +8 more
openaire   +6 more sources

Using an Automatic Resistivity Profiler Soil Sensor On-The-Go in Precision Viticulture

open access: yesSensors, 2013
Spatial information on vineyard soil properties can be useful in precision viticulture. In this paper a combination of high resolution soil spatial information of soil electrical resistivity (ER) and ancillary topographic attributes, such as elevation ...
Mariana Amato   +7 more
doaj   +1 more source

Age‐specific habitat preference, carrying capacity, and landscape structure determine the response of population spatial variability to fishing‐driven age truncation

open access: yesEcology and Evolution, 2021
Understanding the mechanisms underlying spatial variability of exploited fish is critical for the sustainable management of fish stocks. Empirical studies suggest that size‐selective fishing can elevate fish population spatial variability (i.e., more ...
Hsiao‐Hang Tao   +4 more
doaj   +1 more source

FLOW REGIMES SPATIAL VARIABILITY [PDF]

open access: yesAerul şi Apa: Componente ale Mediului, 2011
Flow regimes spatial variability. This study investigates the spatial distribution of annual flow regimes within the Tur River basin, using 29-year records (1979-2007) of mean monthly flow, for 7 gauging stations.
HORVÁTH Csaba   +3 more
doaj  

Spatial variability assessment of soil available phosphorus using geostatistical approach

open access: yesThe Indian Journal of Agricultural Sciences, 2020
Soil available phosphorus (P), a major plant nutrient, exhibits a high degree of spatial variability. Spatial variability assessment of P is necessary for its precise management using geostatistics.
Bhabani Prasad Mondal   +8 more
doaj   +1 more source

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