Relations between Microtopography and Soil N
and P Observed by an Unmanned Aerial Vehicle
and Satellite Remote Sensing (GF-2)

Lou, Hezhen; Ren, Xiaodan; Yang, Shengtian; Hao, Fang; Cai, Ming; Wang, Yue

doi:10.15244/pjoes/116608

Cited by 3 publications

(1 citation statement)

References 41 publications

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“…UA was used in topographic works to obtain microtopographic data, which allowed to obtain high spatial resolution images from a sensor height of 100 m and a swath width of 171 × 128 m, from which were calculated the height differences in the study area (Lou, et al, 2021).…”

Section: Uas Historical Experiencementioning

confidence: 99%

Possibilities and Restrictions on the Use of Unmanned Aircraft Systems in Security Work in Latvia

Veinbergs

Kisnica

2021

EIS

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Unmanned aircraft systems (UAS) have become available not only in the military environment, but to every member of society. They can be effectively used in security work, although, if used unprofessionally, UA can pose a threat to the public or the protected object. The aim of the article is to find evidence that the use of UA for the protection of a security object can be of a technical nature. With the introduction of UA as a part of technical equipment for security work, it would be possible to immediately inspect the guarded object and track and/ or detain persons with criminal intent, or transfer the data obtained by the video camera recording system to the State Police. The primary data of the research was collected using the survey method, where the general set of research was compiled by security companies that have received the required license for the provision of Technical Security by the State Police. The experience of using UAV in Latvia and in the international environment has been analysed using the case study method; secondary data has been obtained from statistical databases and scientific literature, as well as from publicly available sources. The results of the research theoretically reflect the effectiveness of the use of UA and UAS in security work, which will provide an opportunity to reasonably conduct practical research in the security industry environment.

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Section: Uas Historical Experiencementioning

confidence: 99%

Possibilities and Restrictions on the Use of Unmanned Aircraft Systems in Security Work in Latvia

Veinbergs

Kisnica

2021

EIS

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Soil Phosphorus Transport in Response to Climate Change at Mid‐High Latitudes Under Intensive Agriculture

Lou,

Zhou,

Ren

et al. 2024

Land Degrad Dev

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Phosphorus (P) is an important soil element for sustaining plant growth and the integrity of terrestrial ecosystems, and the soil P cycle is strongly influenced by climate change and agricultural activities. However, little is known about how soil P has evolved with climate change and intensive agriculture at mid‐high latitudes, where the soil P cycle is sensitive to climate change. To answer this question, an ecohydrological model (EcoHAT‐P) driven by remote sensing data was used in this study to calculate soil P concentration and loss and was calibrated and validated using 272 soil samples collected in the Sanjiang Plain, a typical mid‐high latitude region with a long history of strong agricultural activity. Soil P concentration and loss, and plant uptake of soil P, were analyzed for the years 2000–2019 and 2020–2040. The results showed that soil total P, soil P loss, and plant P uptake all increased under intensive agriculture. The soil P cycle at mid‐high latitudes was more sensitive to temperature than to precipitation. Increased temperature would increase soil P loss and plant P uptake by 93.94% and 8.16%, respectively, and soil legacy P from intensive agriculture would become the main source even if external P inputs were eliminated. The results highlight the evolution of soil P transport at mid‐high latitudes and clarify the response of soil P cycle to climate change under intensive agriculture.

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Impact of remote sensing data fusion on agriculture applications: A review

Allu,

Mesapam

2025

European Journal of Agronomy

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Relations between Microtopography and Soil N and P Observed by an Unmanned Aerial Vehicle and Satellite Remote Sensing (GF-2)

Cited by 3 publications

References 41 publications

Possibilities and Restrictions on the Use of Unmanned Aircraft Systems in Security Work in Latvia

Possibilities and Restrictions on the Use of Unmanned Aircraft Systems in Security Work in Latvia

Soil Phosphorus Transport in Response to Climate Change at Mid‐High Latitudes Under Intensive Agriculture

Impact of remote sensing data fusion on agriculture applications: A review

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