bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ameliorative potential and rating of the agrochernozem in the Trans-Ural steppe zone of the Republic of Bashkortostan (Russia)
Authors: Suleymanov R R , Gabbasova I M , Suleymanov A R , Adelmurzina I F , Gizatshina G M , Asylbaev I G 
Published: July 2021

Abstract
Under the conditions of an intensive growth of the Earth’s population, a decrease in the area and quality of productive arable land, the question of reproduction of a sufficient amount and quality of plant agricultural products arises. The arid areas, where amid climate is marked by an increase in soil production moisture shortages and declining crop yields are particularly problematic in this regard. One of the possible ways to solve this problem is to use irrigation reclamation. However, change in the water regime can lead to degradation of the soil cover, in connection with which there is a need for a preliminary assessment of the soil resistance to irrigation. The research was carried out on an agricultural site, which is planned for use in irrigated agriculture. It is shown that the soil cover of the site is represented by agrochernozem (Chernozems Luvic (CHlv), which is characterized by an average level of organic matter and nutrients, a slightly acidic reaction, favorable water-physical properties and, accordingly, it is resistant to irrigation. Assessment of the soil cover based on the soil-agro-climatic index showed that the limiting factor in this area is insufficient moisture. In this connection, carrying out irrigation reclamation will increase the productivity of agricultural crops.
Preserving the fertility of Russian chernozems. Status, trends, forecast
Authors: Trofimov I A , Trofimova L S , Yakovleva E P , Emelyanov A V , Skripnikova E V 
Published: July 2021

Abstract
As a result of our agrolandscape-ecological zoning performed for all natural and economic regions of Russia with the presence of steppe ecosystems with chernozem soils, the following patterns were revealed: unbalanced agriculture, unbalanced agricultural landscapes, unbalanced structure of sown areas and crop rotations (significant predominance of economically attractive crops); obtaining crop yields due to natural fertility of Russian chernozems. The high ploughing of the Russian Chernozem region and the insufficient number of tread elements leads to the creation of foci of erosion, deflation and desiccation. Open, unprotected or poorly protected by vegetation the surface of plowed soil, clean vapors, and row crops is significantly more exposed to the development of erosion and deflation processes. The long-term arable use of the chernozem soils of the steppe ecosystems of Russia without due attention to the reproduction of their fertility contributed to their degradation, erosion, dehumification, destruction of the structure and compaction. At present, they are in urgent need of rational use of natural resources and protection. Based on the analysis of the state and identified trends in nature management in forest-steppe and steppe landscapes, a forecast for the preservation of the fertility of Russian Chernozems is developed.
Geoinformation mapping of modern gully erosion in the steppe region of the Russian Plain
Authors: Yermolaev O P , Medvedeva R A 
Published: July 2021

Abstract
Considering the linear erosion processes in the river basins slopes it can be noticed that the gully erosion is most intensively changing the relief, leading to the complete soil cover destruction, and is making the land not suitable for agricultural use. The latest maps of the gullies’development in Russia were compiled more than 50 years ago and can be seen as very outdated. Since that time no comprehensive gullies network mapping has been carried out. Due to the gullies’ network shape and their large size, the satellite images allow noticing their representation. The study of the modern gully network was carried out in the steppe east of the Russian Plain on an area of more than 38000 km2. The gullies were mapped using high-resolution satellite images (1.65 – 0.4 m). It allowed compiling an electronic map of the modern gullies’ density in river basins. The areal and linear dynamics of morphologically active gullies for the period 2003-2014 were determined using satellite images. The data obtained indicate a very weak territory dissection by the gullies. It can be asserted that for the majority of the gullies their peak of activity has already passed, and currently they are either in a state of dynamic equilibrium or are being transformed into balkas. These results correlate with the data obtained during the earlier study of the forest and forest-steppe zones in the same Russian region.
PHYTOSENOLOGICAL STUDY OF ZOSIMA ABSINTHIFOLIA (VENT.) LINK. IN AZERBAIJAN
Authors: Yusifov Elman 
Published: July 2021

Abstract
Describes the study of the habitats, populations and phytocenology of the Zosima absinthifolia (Vent.) Link. Zosima absinthifolia belongs to the Apiaceae family and the only species of the genus distributed in the Nakhchivan Autonomous Republic and Absheron Peninsula in the steppe landscapes. The results showed that in 6.7,10th senopopulations the coefficient of efficiency was higher (ω = 0.59-0.67). This is due to the fact that, in these populations, the dynamics of the number of plants belonging to the juvenile and immature phases before the generative developmental phases is high, and individuals with aging (s, ss) phases were few. In favorable conditions seed reproduction increases the number of seedling senopopulation (35.48%). In such cases, the post-generation fraction level decreases (25.87%). As the environment deteriorates, the role of vegetative reproduction increases. As a result, sprouts in the age spectrum are minimized (3.97%). The maximum share of j + im + v (47.4%) in the III senopopulation decreased accordingly (7.77-35.38%). Number of individuals in populations VI, VII and X is increasing. In other populations, a decrease in the number of individuals was observed.
Heavy metals in the soil and vegetation cover of agricultural landscapes in the steppe southern European Russia (Rostov region as a case study)
Authors: Zakrutkin V E , Shishkina D Yu , Kohanistaya N V 
Published: July 2021

Abstract
Recently, there has been an active development of all industries, transport, agriculture within the steppe zone of southern Russia. The agro-industrial complex is widely developed within the Rostov region, characterized by highly efficient crop production, grain and sunflower production. The article examines the soil cover and agricultural products of the region. A change in the distribution of trace elements in the upper soil layer with the use of various agricultural technologies was revealed. It was revealed that the most favorable conditions for the accumulation of most of the studied microelements are formed in the soils under rice fields and vineyards. In the course of the research, the differentiation of the main crops for a number of heavy metals was studied. An analysis of the data obtained indicates the existence of a tendency for the average content of trace elements to increase from grain crops to forage grasses, which is associated with soil conditions and specific biological characteristics. According to the content of elements in soils, the coefficient of biological absorption and biogeochemical activity of the studied crops were calculated, which made it possible to rank them according to their ability to accumulate heavy metals.
Phytoremediation-a sustainable remedial method for soil contaminated by vanadium
Authors: Wu Zhen-Zhong , Yang Jin-Yan , Zhang You-Xian 
Published: July 2021

Abstract
Vanadium amassing in the soil increased with its widespread usage in multi-field. Elevated soil vanadium confers adverse effects on living organisms involved in plants, animals, and microorganisms. Moreover, vanadium can enter the human body through the food chain and lead to potential health risks stemming from its toxicity and carcinogenicity. Therefore, the remediation of soil contaminated by vanadium is imperative. Phytoremediation, a clean phytotechnology, is gaining increasing grace in modern society that prefers spirit-enjoy persuing. However, due to the blemishes of the remediation plants per se, the remediation efficiency relying on plants alone is not attractive. Therefore, the strengthened screening of vanadium accumulator and hyperaccumulator plants should step forward. Simultaneously, it is necessary to improve phytoremediation efficiency by some complementary measures, such as inoculating plant growth-promoting bacteria, vanadium reducing bacteria, and the proper application of plant growth regulators. Overall, microbe-assisted and moderate usage of plant growth-promoting factors are promising for the phytoremediation of vanadium-contaminated soil.
Research on the recycling path of cleaner production in agriculture and animal husbandry from the perspective of sustainable development
Authors: Zhang Huaguo 
Published: July 2021

Abstract
The sustainable development of population, resources and environment is an important research direction and hot topic in academic circles. Based on the perspective of sustainable development how to improve the use efficiency of materials, resources and energy, develop low-carbon economy through green production methods and ways and realize the dual effects of economic growth and ecological cycle coordinated development. Based on the clean production and recycling of agricultural and animal husbandry waste resources in the plateau, this paper discusses how to tap the production potential of agricultural and animal husbandry waste resources, reduce environmental pollution, change energy flow and realize value-added from the perspective of resource utilization, industrial innovation, environmental evaluation and value-added. Finally, it provides the way method and direction for the future clean production and recycling of plateau animal husbandry waste resources, and provides innovative theoretical basis and ideas for actively promoting and accelerating the sustainable development of clean production and construction of plateau animal husbandry waste resources. The relevant research results provide strategic guidance and scientific and technological support for the future high-quality development of plateau agriculture and animal husbandry, It is only for social and academic discussion and exchange.
Factors affecting the hydrological response of substrate material for green roofs and bioretention
Authors: Qin Yifeng , Chen Mingsheng , Li Xudong , Qiu Jiangping 
Published: July 2021

Abstract
Green roof and bioretention have been frequently used as stormwater management practices to address urban hydrology issues, and researches regarding these technologies are increasing lately. However, a knowledge gap remains in characterizing the hydraulic properties of these practices. The hydrological process of green roof and bioretention is mainly determined by the substrate media of the practices. Based on current studies, this paper discussed factors affecting the hydrological response of substrate material for green roofs and bioretention. Most researches provide qualitative information on water movement within substrate, but few have further investigated the theoretical explanations on the hydrological process of substrate and give quantitative data. This study proposed that following factors affecting water flow dynamics of substrate media: type of materials and composition of the materials; depth of the substrate media; pore structure/network of the substrate materials. Many investigations focus on the effect of a single factor and generalizing the other, but the hydrological process of the substrate material is mostly under the effect of multiple factors simultaneously. And under different study conditions and different designs of green roof or bioretention, the importance of these factors to the hydrological performance of substrate media is different. In addition, interrelationships exist among the factors, changes in one factor could influence other factors. Current research on the factors influencing the hydrological process of the substrate material needs to be related. Future study needs to consider the effect of multiple factors and their interrelations, to create integrated approaches for a better understanding of the hydrological process of the substrate material, and for modeling the hydrological performance of the green roof and bioretention more accurately and designing the practices more efficient.
Research on the Preparation and Performances of a New Type of Hollow Glass Microspheres
Authors: Wang Han , Wang Zhi , Li Jing , Sun Jian , Wang Tingting , Li Wenfeng 
Published: July 2021

Abstract
Hollow glass microsphere is a cross-functional frontier material that can be added to a variety of substrate materials to improve their performances and environmental benefits. In this paper, the characteristics, application fields and development status of hollow glass microspheres were summarized, and the basic formula, preparation process, performance testing equipments and methods of a new type of hollow glass microspheres were expounded. By testing and analyzing the main performances such as micro morphology, chemical composition, particle size, floating rate, bulk density, true density, compressive strength and other indicators of the microsphere samples, the properties and application potential of the hollow glass microspheres that we prepared are comprehensively characterized. The experimental results show that the microspheres have regular morphology and uniform particle size, the floating rate of them is higher than 97%, the bulk density is 0.1∼0.4g/cm3, the true density is 0.20∼0.65g/cm3 and fluctuates in a reasonable range; besides, the compressive strength is so good that microspheres are barely broken. What’s more, the development prospect of glass microsphere industry is prospected at the end.
Stakeholder Behavior Analysis of Low-carbon Housing Promotion
Authors: Yang Lei , Du Peng , Liao Haiyan , Zhang Haixia 
Published: July 2021

Abstract
The construction field is one of the key fields of energy conservation in the whole society. China has become the world’s second largest energy consumer and the largest CO2 emitter. China’s total energy consumption from building operation reached 22% of the total national energy consumption, of which residential buildings accounted for about 45.7%. The proportion may further increase with the progress of urbanization and growth of population. Therefore, It is believed that the development of low-carbon housing market is important for energy conservation and emission reduction. Due to different positions and interests, low-carbon housing has not been effectively promoted by various stakeholders involved in the development of low-carbon housing in China. This paper discussd how to encourage stakeholders to accept, participate and promote the development of low-carbon housing on the base of analyzing the behavior and interest demands of all stakeholders. The paper take Guangzhou city as the case, the reaserch shows the Guangzhou goverment has issued relevant policies to encourage that real estate projects implement green building two-star or above standards, both commercial housing and affordable housing have provided low-carbon housing products nowadays, but there are only a few projects and few real estate enterprises involved. Most consumers hold a supportive attitude towards the supply of low-carbon housing products, but it is hoped that low-carbon housing can improve the living comfort without too high a price. The paper suggested that the government should improve policy design and incentive mechanism, build a quality assurance system for the whole life cycle of low-carbon housing. cooperate with real estate developers and strengthen publicity to improve the recognition of low-carbon housing in the whole society.
Projection of energy mix in China using carbon emission pinch analysis
Authors: Cao Jinkang , Jia Xiaoping , Wang Fang 
Published: July 2021

Abstract
This work uses carbon emission pinch analysis (CEPA) method to analyze the energy mix of power generation in the Chinese power sector. It proposes to explore the optimal energy mix to achieve effective control of carbon emissions while meeting electricity demand. Under the constraint of global carbon neutrality, China’s power industry is reducing carbon emissions by transforming the energy mix. The energy mix of China’s power industry in 2030 and 2050 is analyzed according to the policy requirements and the emission reduction effect of the optimal combination. The study shows that vigorously reducing coal power, developing wind power and solar power as the main renewable energy sources, and vigorously developing the renovation and new construction of carbon capture and storage (CCS) technology for coal power are more conducive to reducing carbon emissions. The goals are up to achieve 4073.13 Mt CO2-e in 2030 and 3948.54 Mt CO2-e in 2050.
Review on unmanned aerial vehicle remote sensing and its application in coastal ecological environment monitoring
Authors: Hu Yiqiang , Yang Chuanxun , Yang Ji , Li Yanyan , Jing Wenlong , Shu Sijing 
Published: July 2021

Abstract
Unmanned aerial vehicles (UAV) and UAV-based remote sensors are becoming more technologically advanced and widely used in the ecological environment monitoring. The analyses of UAV remote sensing data can help to improve the input efficiency in ecological environment assessment, which can greatly improve the monitoring efficiency and reduce the impact on environmental pollution. This review introduces the common types of UAV, types of UAV-based remote sensors as well as UAV communication, and their practical application in different coastal ecological environment monitoring scenes: terrestrial pollution source, marine debris, algae disaster, which can provide fresh perspective and thought for producer and researcher to develop the UVA remote sensing application in this field.
The Study of Healthy Benefits and Design Strategy of Urban Residential Green Space
Authors: Wang Zhipeng , Lv Songyuan , Shao Mengmeng , Liu Xinmeng 
Published: July 2021

Abstract
The outbreak of COVID-19 in 2020 has made the health of urban populations as a key research issue in various disciplines. Residential green space as one of the most basic units of urban ecological environment has potential benefits to people’s health. Based on the analysis of affecting factors of urban residents’ heath, this paper discusses the benefits of residential green space on people’s health and its working mechanism through literature research, and at last, proposes the design strategy of residential green space based on improving residents’ health. In conclusion, to activate the healthy benefits of residential green space, it should be planned reasonably, and the greening rate and amenity facility of residential green space need to be improved too.
Hierarchical management scheme of urban waterlogging risk based on critical rainfall level: a case study of Xining City
Authors: Chu Junying , Tian Ziyang , Zhou Zuhao , Jiang Yunzhong 
Published: July 2021

Abstract
With the global climate change and the intensification of human activities, urban waterlogging caused by rainstorm is becoming more prominent, and the problem of urban waterlogging needs to be solved. According to different return periods and drainage standards, a new hierarchical management scheme of urban waterlogging risk is proposed, which is composed of micro source runoff control system, minor drainage transmission system, major waterlogging prevention system and resilience improvment system. Based on long series short duration precipitation data, different critical rainfall levels are calculated considering the relevant drainage and waterlogging prevention standards. The calculation results show that the rainfal level for micro source runoff control system is 15.8mm (i.e. point A). For minor drainage control system, the rainfal level are 20.6 mm and 26.9 mm respectively (i.e. point B and B’). For major waterlogging prevention system, the rainfall level is 53.5mm (i.e. point C). According to these segmentation points, four interconnected urban waterlogging risk management strategies are proposed, i.e. stategy 1.0 focuses on micro scale and aims to promote source runoff control by ‘green infrastructure’, 2.0 focuses on minor scale aims to conduct drainage optimization of ‘grey infrastructure’, 3.0 focuses on major scale aims to improve waterlogging prevention by ‘blue infrastructure’ and 4.0 aims to deal with disaster mitigation by ‘red infrastructure’. Furthermore, the rainfall characteristics, the influence degree of rainfall, and objectives and measures for each stragy are given in detail.
RETRACTED: Design and Research of Smart Hydrological Monitoring Network Based on Internet of Things
Authors: Zhang Yimeng , Li Tongji , Guan Yi 
Published: July 2021

Abstract
Aiming at the low monitoring efficiency of the current hydrological monitoring network and low accuracy of monitoring data, this paper studies and designs a smart hydrological monitoring network based on the Internet of Things with satellites, drones, radars, and mobile broadband Internet as the core. This article describes the hardware structure and functional structure of the smart hydrological monitoring network, and describes the process of the system how to analyze the big data obtained through the Internet of Things to improve the accuracy and efficiency of monitoring data.
Constructing driver Hamiltonians for optimization problems with linear constraints
Authors: Leipold Hannes , Spedalieri Federico M 
Published: July 2021

Abstract
Recent advances in the field of adiabatic quantum computing and the closely related field of quantum annealing have centered around using more advanced and novel Hamiltonian representations to solve optimization problems. One of these advances has centered around the development of driver Hamiltonians that commute with the constraints of an optimization problem—allowing for another avenue to satisfying those constraints instead of imposing penalty terms for each of them. In particular, the approach is able to use sparser connectivity to embed several practical problems on quantum devices in comparison to the standard approach of using penalty terms. However, designing the driver Hamiltonians that successfully commute with several constraints has largely been based on strong intuition for specific problems and with no simple general algorithm for generating them for arbitrary constraints. In this work, we develop a simple and intuitive algebraic framework for reasoning about the commutation of Hamiltonians with linear constraints—one that allows us to classify the complexity of finding a driver Hamiltonian for an arbitrary set of linear constraints as NP-complete. Because unitary operators are exponentials of Hermitian operators, these results can also be applied to the construction of mixers in the quantum alternating operator ansatz framework.
Inferring the drivers of language change using spatial models
Authors: Burridge James , Blaxter Tamsin 
Published: July 2021

Abstract
Discovering and quantifying the drivers of language change is a major challenge. Hypotheses about causal factors proliferate, but are difficult to rigorously test. Here we ask a simple question: can 20th century changes in English be explained as a consequence of spatial diffusion, or have other processes created bias in favour of certain linguistic forms? Using two of the most comprehensive spatial datasets available, which measure the state of English at the beginning and end of the 20th century, we calibrate a simple spatial model so that, initialised with the early state, it evolves into the later. Our calibrations reveal that while some changes can be explained by diffusion alone, others are clearly the result of substantial asymmetries between variants. We discuss the origins of these asymmetries and, as a by-product, we generate a full spatio–temporal prediction for the spatial evolution of English features over the 20th century, and a prediction of the future.