农田土壤理化参数快速获取技术研究进展与展望OACSTPCD

[Significance]Soil stands as the fundamental pillar of agricultural production,with its quality being intrinsically linked to the efficien-cy and sustainability of farming practices.Historically,the intensive cultivation and soil erosion have led to a marked deterioration in some arable lands,characterized by a sharp decrease in soil organic matter,diminished fertility,and a decline in soil's structural integ-rity and ecological functions.In the strategic framework of safeguarding national food security and advancing the frontiers of smart and precision agriculture,the march towards agricultural modernization continues apace,intensifying the imperative for meticulous soil quality management.Consequently,there is an urgent need for the rrapid acquisition of soil's physical and chemical parameters.Interdisciplinary scholars have delved into soil monitoring research,achieving notable advancements that promise to revolutionize the way we understand and manage soil resource. [Progress]Utilizing the the Web of Science platform,a comprehensive literature search was conducted on the topic of"soil,"further refined with supplementary keywords such as"electrochemistry","spectroscopy","electromagnetic","ground-penetrating radar",and"satellite".The resulting literature was screened,synthesized,and imported into the CiteSpace visualization tool.A keyword emer-gence map was yielded,which delineates the trajectory of research in soil physical and chemical parameter detection technology.Anal-ysis of the keyword emergence map reveals a paradigm shift in the acquisition of soil physical and chemical parameters,transitioning from conventional indoor chemical and spectrometry analyses to outdoor,real-time detection methods.Notably,soil sensors integrated into drones and satellites have garnered considerable interest.Additionally,emerging monitoring technologies,including biosensing and terahertz spectroscopy,have made their mark in recent years.Drawing from this analysis,the prevailing technologies for soil physical and chemical parameter information acquisition in agricultural fields have been categorized and summarized.These include:1.Rapid Laboratory Testing Techniques:Primarily hinged on electrochemical and spectrometry analysis,these methods offer the dual benefits of time and resource efficiency alongside high precision;2.Rapid Near-Ground Sensing Techniques:Leveraging electromag-netic induction,ground-penetrating radar,and various spectral sensors(multispectral,hyperspectral,and thermal infrared),these tech-niques are characterized by their high detection accuracy and swift operation.3.Satellite Remote Sensing Techniques:Employing di-rect inversion,indirect inversion,and combined analysis methods,these approaches are prized for their efficiency and extensive cover-age.4.Innovative Rapid Acquisition Technologies:Stemming from interdisciplinary research,these include biosensing,environmen-tal magnetism,terahertz spectroscopy,and gamma spectroscopy,each offering novel avenues for soil parameter detection.An in-depth examination and synthesis of the principles,applications,merits,and limitations of each technology have been provided.Moreover,a forward-looking perspective on the future trajectory of soil physical and chemical parameter acquisition technology has been offered,taking into account current research trends and hotspots. [Conclusions and Prospects]Current advancements in the technology for rapaid acquiring soil physical and chemical parameters in agricultural fields have been commendable,yet certain challenges persist.The development of near-ground monitoring sensors is con-strained by cost,and their reliability,adaptability,and specialization require enhancement to effectively contend with the intricate and varied conditions of farmland environments.Additionally,remote sensing inversion techniques are confronted with existing limita-tions in data acquisition,processing,and application.To further develop the soil physical and chemical parameter acquisition technolo-gy and foster the evolution of smart agriculture,future research could beneficially delve into the following four areas:Designing porta-ble,intelligent,and cost-effective near-ground soil information acquisition systems and equipment to facilitate rapid on-site soil infor-mation detection;Enhancing the performance of low-altitude soil information acquisition platforms and refine the methods for data in-terpretation to ensure more accurate insights;Integrating multifactorial considerations to construct robust satellite remote sensing in-version models,leveraging diverse and open cloud computing platforms for in-depth data analysis and mining;Engaging in thorough research on the fusion of multi-source data in the acquisition of soil physical and chemical parameter information,developing soil in-formation sensing algorithms and models with strong generalizability and high reliability to achieve rapaid,precise,and intelligent ac-quisition of soil parameters.