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·DOI / Corpus ID 218533328; Estimation of soil salt content by combining UAV borne multispectral sensor and machine learning algorithms article{Wei2020EstimationOS title={Estimation of soil salt content by combining UAV borne multispectral sensor and machine learning algorithms} author={Guangfei Wei and Yu Li and
·Reclamation of salt affected soil has been identified by the FAO as being critical to meet the needs to increase agricultural productivity This paper reviews commonly used reclamation methods for salt affected soils and provides critical identifiers for an effective reclamation practice of salt affected soil There are widely used methods to reduce salinity and
·Introduction Soil salinization is a global ecological and environmental problem which has become one of the main obstacles to agricultural production and sustainable economic development especially in arid and semi arid areas Wu et al 2008 The process of salinization is mainly due to the comprehensive influence of specific natural conditions geological
·Abstract Steel parts are a kind of high recovery value product for which de rusting is the primary step in the recycling process Laser cleaning is a popular and effective de rusting technique at present However the rust on most end of life/used parts is very serious and it is difficult for laser cleaning to remove it all Therefore a compound cleaning method was
·Hyperspectral data has attracted considerable attention in recent years due to its high accuracy in monitoring soil salinization At present most existing research focuses on the saline soil in a single area without comparative analysis between regions The regional differences in the hyperspectral characteristics of saline soil are still unclear Thus we chose Golmud in
·Soil samples and field in situ spectral collection The technical flowchart of this study is shown in Fig total of 66 126 and 104 soil samples were collected from Farmland areas A B and C
·The accumulation of salt in arable lands is a source of significant abiotic stress contributing to a 10% decline in the world s total arable lands and threatening food productivity and the sustainability of agriculture About 76 million hectares of productive land are estimated to have been affected by human induced salinization such as extreme salt deposits in soil which
·Enhancing crop production in the saline regions of the Yellow River Delta YRD where shallow saline groundwater is prevalent hinges on optimizing water and salt conditions in the root zone This study explored the effects of various physical methods on soil water and salt dynamics during the cotton growing season in these saline areas Three approaches were
·Sentinel MSI and Landsat OLI data were combined with measured soil salinity data in July 2020 and optimal combination bands were selected based on characteristic bands to create a grid search support vector machine GS SVM inversion model of soil salt content The maximum value of soil salt content in the Bosten Lake watershed was g/kg
·The inversion results showed that the soil salt content on April 22th 2019 was generally lower than that on April 27th 2018 which might be due to some salinity protection management measures However due to the small amount of cloud on the Sentinel 2 image on May 19 the southernmost part of the study area were higher in soil salinity
·Estimation of soil salt content by combining UAV borne multispectral sensor and machine learning algorithms PeerJ 2020 Apr 28 This study aims to quantitatively estimate soil salt content SSC using UAV borne multispectral imagery and explore the deep mining of multispectral data For this purpose a total of 60 soil samples 0 20 cm
Soil salinity is a serious problem facing many countries globally especially those with semi arid and arid climates Soil salinity can have negative influences on soil microbial activity as well as many chemical and physical soil processes all of which are crucial for soil health fertility and productivity Soil salinity can negatively affect physiological biochemical and genetic
·Soil salinization is one of the main hazards affecting the sustainable development of agriculture in the Hetao Irrigation District HID of Inner Mongolia To grasp the water and salt transport patterns and spatial temporal distribution characteristics of the HID at the regional scale the improved Soil and Water Assessment Tool with a salinity module SWAT Salt
·Salt patches SPs with surface salt accumulation pose a serious threat to agriculture in coastal saline lands However the migration and distribution of soil water and salt in SPs remain unclear due to complex water salt transport dynamics In this study we focused on typical SPs in the Yellow River Delta region and selected center site Site 1 transition site
·The soil salt absorption bands were mainly located near 600 nm 800 nm 1000 nm 2100 nm and 2200 nm and the depth and width of the absorption valley became larger with the increase of the soil salt content which is mainly due to combinations of O H stretches H O H bending fundamentals and various overtones DRAKE 1995 The
·An accurate estimation of soil electrical conductivity EC using hyperspectral techniques is of great significance for understanding the spatial distribution of solutes and soil salinization Although spectral transformation has been widely used in data pre processing the performance of different pre processing techniques or combination methods on different
()。5( The Least Absolute Shrinkage and Selection Operator LASSO; Multiple Adaptive Regression
·Soil salinization is a global problem that damages soil ecology and affects agricultural development Timely management and monitoring of soil salinity are essential to achieve the most
Soil salinization one of the most severe global land degradation problems leads to the loss of arable land and declines in crop yields Monitoring the distribution of salinized soil and degree of salinization is critical for management remediation and utilization of salinized soil; however there is a lack of thorough assessment of various data sources including remote sensing and
·Optimal drip irrigation management in shallow groundwater areas needs to clarify the effects of flow rate and layout designs on the soil moisture salt distribution cotton root length density plant height leaf area and yield In this study a one year field experiment was conducted from April to October 2018 in the fifth company of the 16th Regiment in Alar City
The problem of soil salinization has always been a global problem involving resource environmental and ecological issues and is closely related to the sustainable development of the social economy Remote sensing provides an effective technical means for soil salinity identification and quantification research This study focused on the estimation of the soil salt
·Excess salt accumulation in the root zone causes soil salinization influencing soil health biodiversity and food security Authors used machine learning algorithms to predict global scale soil
Excessive soil salt content SSC leads to soil salinization which negatively impacts soil structures as well as plant growth Jia et al [26] accurately predicted soil electrical conductivity using machine learning methods such as LightGBM Extreme Randomized Trees ERT and Random Forest RF J Clean Prod 451 2024 /j
·Vol 66 No 1 / 2022 INMATEH Agricultural Engineering 229 DESIGN ANALYSIS AND TEST OF CLEANING MACHINE FOR GRAPEVINE COLD PROOF SOIL / 、 JiaXi ZHANG JinMing LI YiChao WANG MaoBo WANG Peng ZHANG ZhaoSen DONG YunLong MA 1