Mapping Arable Lands in Agricultural Landscapes of Volgograd Region According to Remote Sensing Data

IF 0.9 4区 地球科学 Q4 METEOROLOGY & ATMOSPHERIC SCIENCES Izvestiya Atmospheric and Oceanic Physics Pub Date : 2024-02-20 DOI:10.1134/s0001433823120228
K. P. Sinelnikova, A. N. Berdengalieva, Sh. Matveev, V. V. Balynova, A. V. Melikhova
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Abstract

Currently, more and more attention is being paid to the development of technologies for the satellite monitoring of land use and the state of agricultural landscapes. The lack of up-to-date information about the boundaries of individual agricultural fields does not allow us to fully assess the state of arable land and take them into account. The available statistical sources have discrepancies and do not have information about the spatial distribution of used and unused agricultural fields. The purpose of this work is to establish the spatial distribution of cultivated and uncultivated arable lands of the Volgograd region according to remote sensing data. This paper presents the results of mapping the actual boundaries of arable lands of the Volgograd region as of 2021. High-resolution Sentinel-2 and Google Earth PRO data in the geographic information program are used to decrypt arable land. As a result, 6.05 million ha of arable land are mapped. The data are compared with official statistics for 2021, and an excess of 12% is noted in comparison with the results of decryption. It is noted that, over the past 20 years, according to statistical data, the areas of arable land and deposits have practically not changed. When comparing the decryption results with the data on arable lands of the Vega service, a difference of 4% was noted, which is quite high accuracy. According to the All-Russian Agricultural Census of 2016, the area of arable land used was exceeded by 8%. According to the SRTM digital terrain model, morphometric parameters of arable land were calculated throughout the region. It is determined that agricultural fields are located mainly on the slopes of the western exposure (37%), which is due to the predominance of the general slope of the relief to the west. Most (78%) of the field areas are on slopes with a steepness of up to 1°, and about 2% occupy areas of more than 3°. Water erosion is noted on steep slopes. The smoothest relief in the Volga region is on the territory of the Caspian lowland. Using remote methods, the assessment of the areas of fallow lands was carried out: about 960 000 ha. According to various sources, from 4800 to 891 000 ha of unused arable land are noted. The resulting geoinformation basis will make it possible to fully account for and assess the condition of cultivated and uncultivated arable lands, as well as develop projects for the rational use of land resources to increase yields and prevent the degradation of agricultural landscapes.

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根据遥感数据绘制伏尔加格勒地区农业景观中的耕地图
摘要目前,人们越来越重视开发卫星监测土地利用和农业景观状况的技术。由于缺乏有关单个农田边界的最新信息,我们无法全面评估耕地状况并将其考虑在内。现有的统计资料存在差异,没有关于已使用和未使用农田空间分布的信息。这项工作的目的是根据遥感数据确定伏尔加格勒地区已开垦和未开垦耕地的空间分布情况。本文介绍了截至 2021 年伏尔加格勒地区耕地实际边界的测绘结果。地理信息程序中的高分辨率哨兵-2 和谷歌地球 PRO 数据被用于解密耕地。因此,绘制了 605 万公顷耕地的地图。这些数据与 2021 年的官方统计数据进行了比较,发现与解密结果相比,多出了 12%。我们注意到,根据统计数据,在过去 20 年中,耕地和矿藏的面积几乎没有变化。在将解密结果与 Vega 服务机构的耕地数据进行比较时,发现两者的差异为 4%,准确度相当高。根据 2016 年全俄农业普查,耕地使用面积超出了 8%。根据 SRTM 数字地形模型,计算了整个地区耕地的形态参数。结果表明,农田主要位于西面的斜坡上(37%),这是由于地势总体向西倾斜的缘故。大部分(78%)的农田位于陡度不超过 1° 的斜坡上,约 2% 的农田位于陡度超过 3° 的斜坡上。陡峭的山坡上有水蚀现象。伏尔加河地区最平缓的地形位于里海低地。利用远程方法对休耕地面积进行了评估:约为 960 000 公顷。根据各种资料,未使用的耕地面积从 4800 公顷到 891 000 公顷不等。由此形成的地理信息基础将有可能全面说明和评估已开垦和未开垦耕地的状况,并制定合理利用土地资源的项目,以提高产量和防止农业景观退化。
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来源期刊
CiteScore
1.40
自引率
28.60%
发文量
56
审稿时长
6-12 weeks
期刊介绍: Izvestiya, Atmospheric and Oceanic Physics is a journal that publishes original scientific research and review articles on vital issues in the physics of the Earth’s atmosphere and hydrosphere and climate theory. The journal presents results of recent studies of physical processes in the atmosphere and ocean that control climate, weather, and their changes. These studies have possible practical applications. The journal also gives room to the discussion of results obtained in theoretical and experimental studies in various fields of oceanic and atmospheric physics, such as the dynamics of gas and water media, interaction of the atmosphere with the ocean and land surfaces, turbulence theory, heat balance and radiation processes, remote sensing and optics of both media, natural and man-induced climate changes, and the state of the atmosphere and ocean. The journal publishes papers on research techniques used in both media, current scientific information on domestic and foreign events in the physics of the atmosphere and ocean.
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