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Long-Term Air Quality Evaluation System Prediction In China Based On Multinomial Logistic Regression Method 基于多项式 Logistic 回归方法的中国空气质量长期评价系统预测
Q2 Agricultural and Biological Sciences Pub Date : 2024-01-12 DOI: 10.24057/2071-9388-2023-2719
Y. He, D. Qi, V. M. Bure
The aim of this article evaluate the long-term air quality in China based on the air quality index (AQI) and the air quality composite index (AQCI) though the multinomial logistic regression method. The two developed models employ different dependent variables, AQI and AQCI, while maintaining the same controlled variables gross domestic product (GDP), and a primary pollutant. Explicitly, the primary impurity is associated with one or more contaminants among six pollutant factors: O3, PM2.5, PM10, NO2, SO2, and CO. Model quality verification is an integral part of our analysis. The results are illustrate d using real air quality data from China. The developed models were applied to predict AQI and ACQI for the 31 capital cities in China from 2013 to 2019 annually. All calculations and tests are conducted using R-studio. In summary, both models are able to predict China’s long-term air quality. A comparison of the AQI and AQCI models using the ROC curve reveals that the AQCI model exhibits greater significance than the AQI model.
本文旨在通过多项式逻辑回归方法,根据空气质量指数(AQI)和空气质量综合指数(AQCI)评估中国的长期空气质量。所建立的两个模型采用了不同的因变量--空气质量指数和空气质量综合指数,同时保留了相同的控制变量--国内生产总值(GDP)和一次污染物。明确地说,首要污染物与六个污染物因子中的一个或多个污染物相关:O3、PM2.5、PM10、NO2、SO2 和 CO。模型质量验证是我们分析的一个组成部分。我们使用中国的真实空气质量数据对结果进行了说明。所开发的模型被用于预测中国 31 个省会城市从 2013 年到 2019 年每年的空气质量指数和 ACQI。所有计算和测试均使用 R-studio 进行。总之,两个模型都能预测中国的长期空气质量。使用 ROC 曲线对 AQI 和 AQCI 模型进行比较后发现,AQCI 模型比 AQI 模型显示出更大的显著性。
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引用次数: 0
Altitudinal Appraisal Of Land Use Land Cover And Surface Temperature Change In The Satluj Basin, India 印度萨特卢杰盆地土地利用、土地覆盖和地表温度变化的高度评价
Q2 Agricultural and Biological Sciences Pub Date : 2024-01-12 DOI: 10.24057/2071-9388-2023-2958
Pankaj Kumar, Swati Thakur, Surajmal Junawa, Subhash Anand
The land use change has affected nearly 32% of the global landscape from 1960 to 2019. Several studies have examined the impacts of land use land cover (LULC) on the surface temperature. Still, the spatiotemporal variation of LULC and LST with altitude is a less researched area. In the current study, we assess the LULC dynamics and its relation to altitudinal LST in the Himalayan Satluj River basin in Himachal Pradesh across the altitudinal range of 332 to 6558 meters. LULC, LST, NDVI, and NDMI were derived from Landsat data for 1980-2020. The spatial pattern was analyzed using Support Vector Machine (SVM) and a mono-window algorithm. The results of LULC denote that snow covered area (SCA) have decreased by nearly 56.19% since 1980 and vegetation cover has increased. However, a decline in vegetation density is pronounced at the same time. The mean surface temperature of the Satluj basin has amplified by 6°C (0.25°C/year) from 1996 to 2020. Mostly Zone 3 and 4 are under high hilly and temperate dry regions in Lahaul Spiti and Kinnaur district of Himachal Pradesh. The most important sign is that the mean surface temperature for Zone 3 (3000m-4500m) and Zone 4 (above 4500m) was the highest increase to 6°C (0.26°C/year) and 8°C (0.31°C/year) from 1996 to 2020. The increase in LST values is attributed to land cover dynamics precisely the decline of snow cover area and the emergence of vegetation zone at higher above the 4500 altitudes. Our study facilitates regional analysis.
从 1960 年到 2019 年,土地利用变化影响了全球近 32% 的地貌。一些研究探讨了土地利用、土地覆被对地表温度的影响。然而,LULC 和 LST 随海拔高度的时空变化仍是一个研究较少的领域。在本研究中,我们评估了喜马偕尔邦喜马拉雅山 Satluj 河流域海拔 332 米至 6558 米范围内的 LULC 动态及其与海拔 LST 的关系。LULC、LST、NDVI 和 NDMI 均来自 1980-2020 年的 Landsat 数据。使用支持向量机(SVM)和单窗口算法对空间模式进行了分析。土地利用、土地利用变化(LULC)的结果表明,自 1980 年以来,积雪覆盖面积(SCA)减少了近 56.19%,植被覆盖面积有所增加。然而,植被密度同时也明显下降。从 1996 年到 2020 年,萨特卢杰盆地的平均地表温度上升了 6°C(每年 0.25°C)。第 3 区和第 4 区主要位于喜马偕尔邦拉豪尔-斯皮蒂和金瑙尔地区的高山和温带干旱地区。最重要的迹象是,从 1996 年到 2020 年,第 3 区(海拔 3000 米至 4500 米)和第 4 区(海拔 4500 米以上)的平均地表温度增幅最大,分别达到 6°C (0.26°C/年) 和 8°C (0.31°C/年)。LST 值的增加归因于土地覆盖的动态变化,即积雪面积的减少和海拔 4500 米以上植被带的出现。我们的研究有助于进行区域分析。
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引用次数: 0
Analysis Of The Mangrove Structure In The Dong Rui Commune Based On Multispectral Unmanned Aerial Vehicle Image Data 基于多光谱无人机图像数据的东瑞公社红树林结构分析
Q2 Agricultural and Biological Sciences Pub Date : 2024-01-12 DOI: 10.24057/2071-9388-2023-2641
D. Ngo, K. N. Quoc, N. T. Dang, C. H. Dang, L. L. Tran, H. Nguyen
Mangroves are one of the most important types of wetlands in coastal areas and perform many different functions. Assessing the structure and function of mangroves is a premise for the management, monitoring and development of this most diverse and vulnerable ecosystem. In this study, the unmanned aerial vehicle (UAV) Phantom 4 Multispectral was used to analyse the structure of a mangrove forest area of approximately 50 hectares in Dong Rui commune, Tien Yen district, Quang Ninh Province – one of the most diverse wetland ecosystems in northern Vietnam. Based on the visual classification method combined with the results of field taxonomic sampling, a mangrove tree classification map was established for UAV with three species, Bruguiera gymnorrhiza, Rhizophora stylosa, and Kandelia obovata, achieving an overall accuracy = 86.28%, corresponding to a Kappa coefficient =0.84. From the images obtained from the UAV, we estimated and developed maps and assessed the difference in tree height and four vegetation indices, including the normalized difference vegetation index (NDVI), green normalized difference vegetation index (GNDVI), enhanced vegetation index (EVI), and green chlorophyll index (GCI), for three mangrove plant species in the flying area. Bruguiera gymnorrhiza and Rhizophora stylosa reach an average height of 4 to 5 m and are distributed mainly in high tide areas. Meanwhile, Kandelia obovata has a lower height (ranging from 2 to 4 m), distributed in low-tide areas, near frequent flows. This study confirms the superiority of UAV with red edge and near-infrared wave bands in classifying and studying mangrove structures in small-scale areas.
红树林是沿海地区最重要的湿地类型之一,具有多种不同的功能。评估红树林的结构和功能是管理、监测和发展这一最多样化、最脆弱的生态系统的前提。本研究使用无人飞行器(UAV)Phantom 4 多光谱分析了越南北部最多样化的湿地生态系统之一--广宁省天燕县 Dong Rui 乡约 50 公顷红树林的结构。根据视觉分类法结合实地分类采样结果,为无人机建立了红树林分类图,其中包括三个物种:Bruguiera gymnorrhiza、Rhizophora stylosa 和 Kandelia obovata,总体准确率达到 86.28%,对应的 Kappa 系数为 0.84。根据无人机获取的图像,我们估算并绘制了地图,评估了飞行区域内三种红树林植物的树高差异和四种植被指数,包括归一化差异植被指数(NDVI)、绿色归一化差异植被指数(GNDVI)、增强植被指数(EVI)和绿色叶绿素指数(GCI)。Bruguiera gymnorrhiza 和 Rhizophora stylosa 的平均高度为 4 至 5 米,主要分布在高潮区。而 Kandelia obovata 的高度较低(2 至 4 米),分布在低潮区和水流频繁的附近。这项研究证实了无人机的红边波段和近红外波段在对小规模地区的红树林结构进行分类和研究方面的优越性。
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引用次数: 0
Gene Diversity In Seed Crop Of Taurus Cedar (Cedrus Libani A. Rich.) Over An Altitudinal Range 金牛星雪松(Cedrus Libani A. Rich.)
Q2 Agricultural and Biological Sciences Pub Date : 2024-01-12 DOI: 10.24057/2071-9388-2023-2922
N. Yazici, T. P. Novikova, A. I. Novikov, N. Bilir
There could be many environmental and biological impacts such as edaphic, geographic, climatic, age, tree structure and population on morphological, physiological and genetically seed quality in plant species. Gene diversity is an important mirror of genetically seed quality. Gene diversity in seed crops were estimated based on female and male strobili productions of fifty trees (N) randomly chosen from each population sampled over an altitudinal range as low (1200-400 meters ≤ altitude), middle (1400 m < altitude ≤ 1600 m), high (1600 m < altitude ≤ 1800 m), and very high (1800 m < altitude) in Taurus cedar also known as cedar of Lebanon (Cedrus libani A. Rich.) for two consecutive years (2021&2022). The variation in strobilus production was subjected to estimation of female and male fertility variation. The total fertility variation (Ψ) was estimated from the female and male fertility variation. Impacts of some growth characteristics (tree height and diameter at breast height) on strobili productions were also investigated. Strobili productions varied among the populations and individuals within population, and between years. The differences for populations and years were also found for coefficient of variations which were mirror of fertility variation of the strobili productions. Tree height and diameter at breast height seemed more reasonable predictor than age for number of strobili. Fertility variations of female parents were generally higher than that of male in both years. First year showed generally higher parental variations in individual populations. Gene diversity (GD=1-0.5Ψ/N) ranged from 0.967 to 0.974 for the populations and years. The loss of highest gene diversity was 0.004 in low population (0.967 & 0.971) between years. Results of the study indicated that altitudinal gene diversity of seed crop could be used to produce genetically quality seed and their grading. Moreover, data sets can be used to fill the Forest Landscape Restoration library (FLR-Library).
植物物种的形态、生理和种子遗传质量可能会受到许多环境和生物因素的影响,如土壤、地理、气候、树龄、树木结构和种群等。基因多样性是种子遗传质量的一面重要镜子。根据连续两年(2021 年和 2022 年)在低海拔(海拔 1200-400 米)、中海拔(海拔 1400 米≤海拔 1600 米)、高海拔(海拔 1600 米≤海拔 1800 米)和极高海拔(海拔 1800 米≤海拔)范围内采样的金牛雪松(又称黎巴嫩雪松)每个种群中随机抽取的 50 棵树(N)的雌性和雄性匍匐茎产量,估算了种子作物的基因多样性。对雌性和雄性生育力的变化进行了估计。根据雌性和雄性生育力变化估算出总生育力变化(Ψ)。还研究了一些生长特征(树高和胸径)对石蕊产量的影响。不同种群、种群内不同个体以及不同年份的石蕊产量各不相同。不同种群和不同年份的变异系数也存在差异,而变异系数是石蕊产量生育率变化的一面镜子。与树龄相比,树高和胸径似乎更能预测核果数。在这两年中,雌性亲本的生育力变异普遍高于雄性亲本。第一年个别种群的亲本变异普遍较高。不同种群和年份的基因多样性(GD=1-0.5Ψ/N)从 0.967 到 0.974 不等。不同年份之间,低种群最高基因多样性的损失为 0.004(0.967 和 0.971)。研究结果表明,种子作物的高度基因多样性可用于生产优质种子及其分级。此外,数据集还可用于填充森林景观恢复图书馆(FLR-Library)。
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引用次数: 0
Modeling Sediment Production In Urban Environments: Case Of Russian Cities 模拟城市环境中的沉积物产生:俄罗斯城市案例
Q2 Agricultural and Biological Sciences Pub Date : 2024-01-12 DOI: 10.24057/2071-9388-2023-3022
A. V. Shevchenko, A. Seleznev, G. Malinovsky, I. Yarmoshenko
The aim of this study is to provide a tool to assess sediment production in an urban area. The urban environment is affected by a variety of anthropogenic and natural factors that, in particular, lead to the sediment production. The storage of sediments in the urban landscape negatively affects the quality of the urban environment. The model was developed on the basis of landscape studies conducted in residential areas of six Russian cities. The model takes into account (1) the influence of precipitation, spring snowmelt, and vehicles, (2) the influence of erosion factors for two seasons: warm (t>5°C) and cold (t<5°C), and (3) the presence of disturbed surfaces. The application of the developed model to Ekaterinburg city conditions returned sediment production equal to 1.2 kg/m2/y. A comparison of seasonal values shows that sediment production in cold season is 2.5 times higher than in the warm season. In the absence of the disturbed surfaces, sediment production decreases to 0.44 kg/m2/y. Modeling showed a correlation between sediment production in Russian cities and duration of the cold season. The efficiency of various urban area maintenance practices and cleaning measures were evaluated in terms of sediment production and storage. The developed model presented in this paper is based on research in Russian cities, but can be applied to assess the formation of sediment and measures to reduce the value of its accumulation in the urban environment in different regions of the world.
本研究旨在提供一种评估城市地区沉积物产生情况的工具。城市环境受到各种人为和自然因素的影响,这些因素尤其会导致沉积物的产生。沉积物在城市景观中的储存会对城市环境质量产生负面影响。该模型是在对俄罗斯六个城市的居住区进行景观研究的基础上开发的。该模型考虑了以下因素:(1) 降水、春季融雪和车辆的影响;(2) 温暖(t>5°C)和寒冷(t<5°C)两个季节的侵蚀因素的影响;(3) 受干扰表面的存在。将所开发的模型应用于叶卡捷琳堡市的条件下,得出的沉积物产生量为 1.2 千克/平方米/年。季节性数值比较显示,寒冷季节的泥沙产生量是温暖季节的 2.5 倍。在没有扰动表面的情况下,沉积物产生量减少到 0.44 千克/平方米/年。模型显示,俄罗斯城市的沉积物产生量与寒冷季节的持续时间有关。根据沉积物的产生和储存情况,对各种城市区域维护措施和清洁措施的效率进行了评估。本文中介绍的开发模型是基于俄罗斯城市的研究,但也可用于评估沉积物的形成,以及减少其在世界不同地区城市环境中积累值的措施。
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引用次数: 0
Impact Of Meteorological Parameters On The Daily Variability Of The Ground-Level PM2.5 Concentrations According To Measurements In The Middle Urals 根据乌拉尔中部的测量结果,气象参数对地面 PM2.5 浓度日变化的影响
Q2 Agricultural and Biological Sciences Pub Date : 2024-01-12 DOI: 10.24057/2071-9388-2023-2824
A. Luzhetskaya, E. Nagovitsyna, V. Poddubny
The results of a comparison of the PM2.5 aerosol concentration daily variability for the summer and winter seasons at the urban and background monitoring sites in the Middle Urals for 2016–2019 are presented. The cluster analysis method revealed a statistically significant difference between the two groups corresponding to higher and lower concentrations of fine aerosol during the day. Studies of the daily variation of the PM2.5 particle concentration in the Middle Urals indicate the leading role of meteorological characteristics (in particular, air temperature, pressure and wind speed) in changing the level of aerosol suspension in the air surface layer. Distinctive typical average daily concentrations of PM2.5 for the Middle Urals region, corresponding to the cluster of lower values, are observed in the summer and are on average ~ 5.2 µg/m3 for the urban area and ~ 3.4 μg/m3 for the background site. In winter, these parameters are 12.8 μg/m3 for urban conditions and 10.5 μg/m3 for background site. The higher content of PM2.5 particles, corresponding to the cluster of higher values, are identified in winter and are on average ~32.2 µg/m3 in urban conditions and ~ 30.3 µg/m3 in the background area. In summer, these parameters are 13.6 μg/m3 for urban site and 9.6 μg/m3 for background area. Simultaneous analysis of the fine aerosol concentrations and the meteorological parameters in the surface atmospheric layer allowed to define of weather conditions, at which the occurrence of higher PM2.5 values is possible.
本文介绍了 2016-2019 年乌拉尔中部城市和背景监测点夏季和冬季 PM2.5 气溶胶浓度日变化的比较结果。聚类分析方法显示,白天细气溶胶浓度较高和较低的两组之间存在显著的统计学差异。对乌拉尔中部地区 PM2.5 粒子浓度日变化的研究表明,气象特征(尤其是气温、气压和风速)在改变空气表层气溶胶悬浮水平方面起着主导作用。乌拉尔中部地区 PM2.5 的典型日平均浓度与较低值群相对应,在夏季观察到,城市地区平均约为 5.2 微克/立方米,背景地点约为 3.4 微克/立方米。在冬季,这些参数在城市条件下为 12.8 微克/立方米,在背景地点为 10.5 微克/立方米。在冬季,PM2.5 颗粒的含量较高,与数值较高的群组相对应,在城市条件下平均约为 32.2 微克/立方米,在背景区域约为 30.3 微克/立方米。在夏季,这些参数在城市地区为 13.6 微克/立方米,在背景地区为 9.6 微克/立方米。同时分析大气表层的微细气溶胶浓度和气象参数,可以确定可能出现较高 PM2.5 值的天气条件。
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引用次数: 0
Landscape Cartography In The Maranhense Amazon: The Case Of The Lower Course Of The Pindaré River Basin 马拉内斯亚马逊的景观制图:平达雷河流域下游河道案例
Q2 Agricultural and Biological Sciences Pub Date : 2024-01-12 DOI: 10.24057/2071-9388-2023-2706
R. B. Medeiros, L. C. A. Dos Santos, J. F. R. Bezerra, A. R. Marques, G. I. F. A. Dos Santos
The landscape cartography assesses the functional, dynamic, structural and morphological aspects of landscapes, regardless of their taxonomic scale. It seeks to use these units to support environmental and territorial planning and management. Thus, the present study sought to apply this line of analysis to the Pindaré River Basin, precisely in its lower course, located in the Brazilian state of Maranhão. The objective was to identify, classify, map and analyze the landscapes of the lower course through the correlation of variables related to geology, relief, soils, land use and land cover providing data to support and promote preservationist and conservationist public policies and actions in the area. The methodology identified four levels of landscape analysis, from morphometric aspects, geoforms and upper units to reaching the final landscape map, using field output, digital elevation models and satellite images to validate information. The procedures allowed to identify the landscape heterogeneity in a unique environment of saturated and periodically flooded soils contrasting with extensive pastures and little native vegetation. As a result, seven first-level landscape units were identified, coming up to fifty-eight sub-units in the final map. The work aims to apply the methodology in an area of the Maranhão State where few studies on landscape cartography have occurred. The target is to comprehend possible relationships between the functional and structural potential of landscapes and their relationship with the current intensity of land use, contributing to physical- territorial planning permeating geoecological sustainability.
景观制图评估景观的功能、动态、结构和形态方面,不论其分类尺度如何。其目的是利用这些单位来支持环境和领土规划与管理。因此,本研究试图将这一分析方法应用到位于巴西马拉尼昂州的 Pindaré 河流域,确切地说,是其下游河道。其目的是通过与地质、地形、土壤、土地利用和土地覆盖相关的变量的相互关系,对下游河道的景观进行识别、分类、绘图和分析,为支持和促进该地区的保护主义和养护主义公共政策和行动提供数据。该方法确定了四个层次的景观分析,从形态测量、地貌和上部单元到最终的景观图,利用实地产出、数字高程模型和卫星图像来验证信息。在饱和土壤和周期性洪水土壤与广阔牧场和少量本地植被形成鲜明对比的独特环境中,这些程序有助于确定景观的异质性。因此,确定了七个一级景观单元,最终地图上共有 58 个子单元。这项工作旨在将该方法应用于马拉尼昂州的一个地区,该地区很少进行景观制图研究。目标是理解景观的功能和结构潜力之间可能存在的关系,以及它们与当前土地使用强度之间的关系,从而为渗透到地理生态可持续性中的自然--领土规划做出贡献。
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引用次数: 0
Trends In Extreme Weather Events With Socio-Economic Damage Over The Period 1991-2019 In Russia And Its Regions 1991-2019 年期间俄罗斯及其各地区造成社会经济损失的极端天气事件趋势
Q2 Agricultural and Biological Sciences Pub Date : 2024-01-12 DOI: 10.24057/2071-9388-2023-2703
A. A. Romanovskaya
Increased number of extreme weather events is one of the most serious hazards of climate change over the territory of Russia. However, there is a lack of comprehensive analysis of the number of extreme weather events that caused social and economic damage in the country and its regions. This paper analyzes changes in the total number of events with damage (meteorological for the period 1991-2019 and agrometeorological – for 2004-2019), disaggregated by their types and by regions. The Mann-Kendall test is applied to detect statistical significance (0.05 level of significance, normal distribution). The results show an increase in the number of meteorological extreme events with damage for 1990-2019 in Russia from 130 to 257 events per year on average for the 1990s and 2010s, respectively, while the proportion of events with damage in relation to the total number of extreme events decreased over this period. We found statistically significant trends only for a few types of extreme events: hot and cold temperature, strong wind, heavy rain and droughts (increase by 0.9, 9.4, 11.4, 25.9 and 13.3 events/10 years, respectively). Number of heavy rain precipitation events is the only unidirectional stable growth trend. Unusual increasing trend in cold extreme events with damage in Russia can be attributed to the greater damage to the economy and population from cold extremes than hot ones. The regional distribution of trends across the territory of the Russian Federation is heterogeneous. However, significant changes in the number of extreme events of strong winds, heavy rains and soil drought by regions are statistically positive and observed mostly in some southern and central regions of European part and the Western Siberia. The development of adaptation plans to the negative effects of climate change is a first priority for these regions. A system for monitoring economic and non-economic damage from extreme events must be developed in Russia.
极端天气事件增多是气候变化对俄罗斯领土造成的最严重危害之一。然而,目前还缺乏对在俄罗斯及其地区造成社会和经济损失的极端天气事件数量的全面分析。本文分析了造成损失的事件总数的变化(1991-2019 年为气象事件,2004-2019 年为农业气象事件),并按事件类型和地区进行了分类。采用 Mann-Kendall 检验来检测统计显著性(显著性水平为 0.05,正态分布)。结果显示,1990-2019 年期间,俄罗斯造成损失的气象极端事件数量有所增加,1990 年代和 2010 年代平均每年分别为 130 起和 257 起,而在此期间,造成损失的事件占极端事件总数的比例有所下降。我们发现,只有几类极端事件有明显的统计趋势:高温和低温、强风、暴雨和干旱(分别增加了 0.9、9.4、11.4、25.9 和 13.3 次/10 年)。暴雨降水事件数是唯一单向稳定增长的趋势。在俄罗斯,造成损失的低温极端事件呈不寻常的增长趋势,这是因为低温极端事件对经济和人口造成的损失比高温极端事件更大。在俄罗斯联邦境内,各地区的趋势分布不尽相同。然而,各地区强风、暴雨和土壤干旱极端事件数量的重大变化在统计上是积极的,并且主要出现在欧洲部分和西西伯利亚西部的一些南部和中部地区。制定适应气候变化负面影响的计划是这些地区的首要任务。俄罗斯必须建立一个监测极端事件造成的经济和非经济损失的系统。
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引用次数: 0
Multiyear variations of soil moisture availability in the East European Plain 东欧平原土壤水分供应的多年变化
Q2 Agricultural and Biological Sciences Pub Date : 2024-01-12 DOI: 10.24057/2071-9388-2023-2811
V. Gornyy, O. V. Balun, A. V. Kiselev, S. G. Kritsuk, I. Latypov, A. Tronin
This study aims to examine the impact of climate change on the water storage across the East European Plain, utilizing archived digital materials from several remote sensing satellites, including the Terra/Aqua (MODIS), the Global Precipitation Climatology Project, GRACE, and GRACE FO satellites, as well as data from digital maps of Selyaninov hydrothermal coefficients. The spatial resolution of the analyzed data ranged from 1x1 km to 250x250 km. Aiming to enhance the spatial resolution of Selyaninov coefficient maps, a new version of the Selyaninov hydrothermal coefficient was suggested, leveraging satellite remote sensing data. Both visual and computer analyses of these materials reveal a consistent reduction in water storage in the southern regions of the East European Plain, accompanied by a slight increase in the Novgorod Oblast. This information suggests that the non-chernozem region of the East European Plain will play a crucial role in supplying agricultural products to the population in the next decades. The observed stable water storage in the northern part of the East European Plain, encompassing the Komi Republic and the Novgorod Oblast, hints at the potential of increased agricultural production in these areas. However, achieving sustainable growth in agricultural production in these regions necessitates a focused investment policy.
本研究旨在利用几颗遥感卫星(包括 Terra/Aqua(MODIS)、全球降水气候学项目、GRACE 和 GRACE FO 卫星)的存档数字资料,以及来自 Selyaninov 热液系数数字地图的数据,研究气候变化对整个东欧平原蓄水量的影响。分析数据的空间分辨率从 1x1 千米到 250x250 千米不等。为了提高 Selyaninov 系数图的空间分辨率,利用卫星遥感数据提出了新版 Selyaninov 热液系数。对这些资料进行的视觉和计算机分析表明,东欧平原南部地区的蓄水量持续减少,而诺夫哥罗德州的蓄水量则略有增加。这些信息表明,在未来几十年中,东欧平原的非切尔诺泽姆地区将在为居民提供农产品方面发挥至关重要的作用。在包括科米共和国和诺夫哥罗德州在内的东欧平原北部地区观察到的稳定蓄水量,暗示了这些地区农业生产增长的潜力。然而,要实现这些地区农业生产的可持续增长,就必须采取重点突出的投资政策。
{"title":"Multiyear variations of soil moisture availability in the East European Plain","authors":"V. Gornyy, O. V. Balun, A. V. Kiselev, S. G. Kritsuk, I. Latypov, A. Tronin","doi":"10.24057/2071-9388-2023-2811","DOIUrl":"https://doi.org/10.24057/2071-9388-2023-2811","url":null,"abstract":"This study aims to examine the impact of climate change on the water storage across the East European Plain, utilizing archived digital materials from several remote sensing satellites, including the Terra/Aqua (MODIS), the Global Precipitation Climatology Project, GRACE, and GRACE FO satellites, as well as data from digital maps of Selyaninov hydrothermal coefficients. The spatial resolution of the analyzed data ranged from 1x1 km to 250x250 km. Aiming to enhance the spatial resolution of Selyaninov coefficient maps, a new version of the Selyaninov hydrothermal coefficient was suggested, leveraging satellite remote sensing data. Both visual and computer analyses of these materials reveal a consistent reduction in water storage in the southern regions of the East European Plain, accompanied by a slight increase in the Novgorod Oblast. This information suggests that the non-chernozem region of the East European Plain will play a crucial role in supplying agricultural products to the population in the next decades. The observed stable water storage in the northern part of the East European Plain, encompassing the Komi Republic and the Novgorod Oblast, hints at the potential of increased agricultural production in these areas. However, achieving sustainable growth in agricultural production in these regions necessitates a focused investment policy.","PeriodicalId":37517,"journal":{"name":"Geography, Environment, Sustainability","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139623909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Crop Residues Stimulate Yield-Scaled Greenhouse Gas Emissions In Maize-Wheat Cropping Rotation In A Semi-Arid Climate 半干旱气候条件下玉米-小麦轮作中的作物残茬刺激产量标度温室气体排放
Q2 Agricultural and Biological Sciences Pub Date : 2024-01-12 DOI: 10.24057/2071-9388-2023-2629
M. Mirzaei, M. G. Anari, M. R. Cherubin, N. Saronjic, S. M. N. Mousavi, A. Rooien, M. Zaman, A. Caballero-Calvo
Mitigating yield-scaled greenhouse gas emissions (YSE) is beneficial for enhancing crop yield, reducing greenhouse gas (GHG) emissions, and advancing climate-smart agronomic management practices. This study aims to evaluate the impact of different crop residue rates– 100% (R100), 50% (R50), and residue removal (R0) – on the YSE indicator within a maize-wheat cropping rotation under both conventional tillage (CT) and no-tillage (NT) systems in a semi-arid region. In the NT system, crop residues had a notable effect on the YSE indicator for wheat. Specifically, R0 exhibited a 39% and 20% decrease in YSE for wheat compared to R100 and R50, respectively. Interestingly, crop residue did not significantly influence YSE for maize under the NT system. On the other hand, in the CT system, YSE for maize in R0 was 33% and 25% lower than that in R100 and R50, respectively. Additionally, compared to R0, there were observed increases of 28% and 20% in YSE for wheat in R100 and R50 under the CT system, respectively. Our findings show that crop residue removal decreases YSE under both CT and NT systems. However, given that this practice degrades soil quality and results in lower yields, it is not considered a sustainable management practice compared to residue retention options. This research highlights the importance of evaluating GHG mitigation strategies by concurrently considering both emissions and crop production. Nevertheless, it is essential to conduct off-site assessments of GHG emissions from crop residue application and also engage in long-term studies to comprehend the full potential of crop residue management on YSE.
减少产量规模的温室气体排放(YSE)有利于提高作物产量、减少温室气体(GHG)排放和推进气候智能农艺管理实践。本研究旨在评估在半干旱地区传统耕作(CT)和免耕(NT)系统下,不同作物残留率(100%(R100)、50%(R50)和去除残留物(R0))对玉米-小麦轮作中 YSE 指标的影响。在 NT 系统中,作物残茬对小麦的 YSE 指标有显著影响。具体而言,与 R100 和 R50 相比,R0 的小麦 YSE 分别下降了 39% 和 20%。有趣的是,作物残留物对 NT 系统下玉米的 YSE 没有显著影响。另一方面,在 CT 系统中,R0 的玉米 YSE 分别比 R100 和 R50 低 33% 和 25%。此外,与 R0 相比,小麦在 CT 系统下 R100 和 R50 的 YSE 分别增加了 28% 和 20%。我们的研究结果表明,在 CT 和 NT 系统下,清除作物残茬会降低 YSE。然而,由于这种做法会降低土壤质量并导致产量下降,因此与保留残留物的方案相比,它不被认为是一种可持续的管理方法。这项研究强调了通过同时考虑排放和作物产量来评估温室气体减排策略的重要性。不过,必须对施用作物秸秆产生的温室气体排放进行场外评估,并开展长期研究,以了解作物秸秆管理对 YSE 的全部潜力。
{"title":"Crop Residues Stimulate Yield-Scaled Greenhouse Gas Emissions In Maize-Wheat Cropping Rotation In A Semi-Arid Climate","authors":"M. Mirzaei, M. G. Anari, M. R. Cherubin, N. Saronjic, S. M. N. Mousavi, A. Rooien, M. Zaman, A. Caballero-Calvo","doi":"10.24057/2071-9388-2023-2629","DOIUrl":"https://doi.org/10.24057/2071-9388-2023-2629","url":null,"abstract":"Mitigating yield-scaled greenhouse gas emissions (YSE) is beneficial for enhancing crop yield, reducing greenhouse gas (GHG) emissions, and advancing climate-smart agronomic management practices. This study aims to evaluate the impact of different crop residue rates– 100% (R100), 50% (R50), and residue removal (R0) – on the YSE indicator within a maize-wheat cropping rotation under both conventional tillage (CT) and no-tillage (NT) systems in a semi-arid region. In the NT system, crop residues had a notable effect on the YSE indicator for wheat. Specifically, R0 exhibited a 39% and 20% decrease in YSE for wheat compared to R100 and R50, respectively. Interestingly, crop residue did not significantly influence YSE for maize under the NT system. On the other hand, in the CT system, YSE for maize in R0 was 33% and 25% lower than that in R100 and R50, respectively. Additionally, compared to R0, there were observed increases of 28% and 20% in YSE for wheat in R100 and R50 under the CT system, respectively. Our findings show that crop residue removal decreases YSE under both CT and NT systems. However, given that this practice degrades soil quality and results in lower yields, it is not considered a sustainable management practice compared to residue retention options. This research highlights the importance of evaluating GHG mitigation strategies by concurrently considering both emissions and crop production. Nevertheless, it is essential to conduct off-site assessments of GHG emissions from crop residue application and also engage in long-term studies to comprehend the full potential of crop residue management on YSE.","PeriodicalId":37517,"journal":{"name":"Geography, Environment, Sustainability","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139624039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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Geography, Environment, Sustainability
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