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Temporal-Spatial Dynamic Characteristics and the Determinants of Agricultural Eco-efficiency in Fujian Province, China 中国福建省农业生态效益的时空动态特征及其决定因素
IF 1.8 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Pub Date : 2023-11-23 DOI: 10.15244/pjoes/173441
Xiaoyan Hong, Qingxia Peng, Kai Su
To obtain a scientific understanding of the spatial and temporal patterns of agricultural eco-efficiency (AEE) as well as its influencing factors in Fujian Province, effective recommendations were provided to promote agricultural green development. The Super-SBM model with undesired output was employed to assess AEE, and the GTWR model was used to analyze the main factors influencing AEE based on data from nine prefecture-level cities in Fujian Province spanning from 2000 to 2020. There are three conclusions to be drawn: Firstly, the AEE of Fujian Province has increased from 0.340 in 2000 to 0.971 in 2020
为科学认识福建省农业生态效益(AEE)的时空格局及其影响因素,提出促进农业绿色发展的有效建议。本文采用带非期望输出的超级-SBM 模型评估农业生态效率,并基于福建省 9 个地级市 2000-2020 年的数据,利用 GTWR 模型分析影响农业生态效率的主要因素。得出了三个结论:首先,福建省的 AEE 已从 2000 年的 0.340 增加到 2020 年的 0.971
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引用次数: 0
Decoupling Analysis between Carbon Emissions, Sewage Emissions, and Fishery Production in China 中国碳排放、污水排放和渔业生产之间的解耦分析
IF 1.8 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Pub Date : 2023-11-23 DOI: 10.15244/pjoes/172850
Yudan Wang, Muhan Li
In this study, we applied decoupling theory to explore the link between carbon emissions, sewage discharge, and fishery output growth in China from 2012 to 2021. The research results indicated that during the research period, the relationship between carbon emissions and fishery output was mainly weak decoupling, while the relationship between sewage discharge and fishery output was weak decoupling and expansive negative decoupling. Carbon emissions and sewage emissions were weak decoupling for most of the time. At the same time, the article defined the relationship between the environment and fishery production based on the decoupling state between the three, which are environmentally friendly, conventional, and polluting. It was discovered that China’s fishery production and environment still exhibit a polluting state. This means that there is a need for green and coordinated development of fisheries production and the environment, and corresponding measures must be taken. As a result, we have proposed policy recommendations that include optimizing aquaculture models, strengthening technological innovation and promotion of new technologies, and strengthening government supervision, management, and policy support.
本研究运用解耦理论探讨了 2012-2021 年中国碳排放、污水排放与渔业产量增长之间的关系。研究结果表明,在研究期间,碳排放与渔业产量的关系主要是弱脱钩,而污水排放与渔业产量的关系是弱脱钩和扩张性负脱钩。碳排放与污水排放在大部分时间内呈弱解耦关系。同时,文章根据环境友好型、传统型和污染型三者之间的脱钩状态,界定了环境与渔业生产之间的关系。研究发现,中国的渔业生产和环境仍然呈现出污染状态。这意味着渔业生产与环境需要绿色协调发展,必须采取相应的措施。因此,我们提出了优化水产养殖模式、加强技术创新和新技术推广、加强政府监督管理和政策支持等政策建议。
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引用次数: 0
Contribution of Legume-Derived Biological Nitrogen Fixation in Reducing Greenhouse Gas Emissions Originating from Agriculture in Türkiye 豆科植物生物固氮对减少土耳其农业温室气体排放的贡献
IF 1.8 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Pub Date : 2023-11-23 DOI: 10.15244/pjoes/173162
Abdullah Özköse
Nitrogen fertilizer production and use contribute to the increase in greenhouse gas (GHG) emissions. GHGs due to nitrogen (N) fertilizer use can be reduced to a certain extent with legume agriculture. This study was conducted to estimate the amount of N produced by biological N fixation (BNF) in legumes grown in Türkiye, the amount of synthetic N fertilizer corresponding to this amount of N, and the global GHG emission equivalent of the production, transport, and use of this fertilizer in the field. Firstly, the amount of N fixed by BNF in a year in legume cultivation areas in Türkiye was calculated. Then, the GHG equivalents emitted during the production, transport, and application in the field of synthetic N fertilizers, which is the equivalent of N fixed by BNF, were calculated. The total amount of N fixed with BNF in 2022 in Türkiye is 363,354 tons. The total GHGs emissions during the production, transport, and use of N fertilizer equivalent to 363354 t of N fixed by BNF is 2,631,043 tons CO 2 -eq. In other words, in one year in Türkiye, 2,631,043 tons of CO 2 -eq GHGs will be reduced thanks to legume agriculture. GHG emissions of the Turkish agricultural sector (total 72.1 Mt CO 2 -eq) have been reduced by about 3.65% (2.63 Mt CO 2 -eq). For an economically and environmentally sustainable agriculture, we need to give more importance to the cultivation of pulses.
氮肥的生产和使用导致温室气体(GHG)排放量增加。豆科植物农业可以在一定程度上减少因使用氮肥而产生的温室气体。本研究旨在估算图尔基耶种植的豆科植物通过生物固氮(BNF)产生的氮量、与该氮量相对应的合成氮肥用量,以及该肥料在田间生产、运输和使用过程中产生的全球温室气体排放当量。首先,计算出土耳其豆科植物种植区一年中由 BNF 固定的氮量。然后,计算合成氮肥在生产、运输和田间施用过程中排放的温室气体当量,即 BNF 固定的氮当量。2022 年,土耳其使用 BNF 固氮的总量为 363,354 吨。在生产、运输和使用氮肥的过程中,相当于 363354 吨 BNF 固氮的温室气体排放总量为 2631043 吨二氧化碳当量。换句话说,由于豆科植物农业的发展,土耳其一年内将减少 2631043 吨二氧化碳当量的温室气体排放。土耳其农业部门的温室气体排放量(总计 7 210 万二氧化碳当量)减少了约 3.65%(263 万二氧化碳当量)。为了实现农业在经济和环境上的可持续发展,我们需要更加重视豆类的种植。
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引用次数: 0
Effect of Chitosan and Gibberellic Acid on Fruit Yield and Production of Peach (Prunus persica L.) 壳聚糖和赤霉素对桃(Prunus persica L.)果实产量和生产的影响
IF 1.8 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Pub Date : 2023-11-23 DOI: 10.15244/pjoes/171982
Muhammad Jiyad Khan, S. Sakhi, Naila Azam, Zakia Ahmad, Naila Hadayat, Bashir Ahmad, Fida Hussain, M. Shuaib, Shahid Khan, Firasat Hussain, Aqsa Qaddus Tahir, Baber Ali, Muhammad Tariq Mahmood, Abdel-Rhman Z. Gaafar
The present study investigated the combined effect of chitosan and gibberellic acid on the fruit yield and production of peach ( Prunus persica L.). The experiment was conducted to explore sustainable and eco-friendly strategies to enhance peach productivity, reduce chemical inputs, and promote overall plant health. The design was Randomized Complete Block (RCBD) with three replications. The experiment exhibited two factors, application of gibberellic acid (Control, 100, 200, 300 ppm) and chitosan (Control, 50, 100, and 150 ppm) abundant were damaged to take its effect on the performance of peach. An early grand variety of peach was used in this research work. Trees treated with gibberellic acid had resulted in lowest Number of fruits (9.93 kg -1 ), highest Single Fruit weight (262.01 g), Fruit volume (108.75 cm 3 ), Fruit yield tree -1 (52.3 kg), Fruit firmness (4.29 kg/cm 2 ), Total soluble solid (TSS) (12.82 o Brix), Ascorbic Acid (6.3 mg/100g -1 ), lowest Fruit Drop (8.63%), Chlorophyll content (48.75SPAD), lowest Fruit Juice pH (4.47), were recorded in plants representative with 200 mg L -1
本研究调查了壳聚糖和赤霉素对桃(Prunus persica L.)果实产量和生产的综合影响。实验旨在探索可持续的生态友好型策略,以提高桃的产量、减少化学投入并促进植物的整体健康。试验设计为随机完全区组(RCBD),三次重复。试验包括两个因素,即赤霉素(对照、100、200 和 300 ppm)和壳聚糖(对照、50、100 和 150 ppm)的施用量。本研究使用的是早熟桃品种。使用赤霉素处理的桃树果实数量最少(9.93 kg -1 ),单果重(262.01 g)、果实体积(108.75 cm 3 )、果实产量(52.3 kg)、果实硬度(4.29 kg/cm 2 )、总可溶性固形物(TSS)(12.82 o Brix)、抗坏血酸(6.3 mg/100g -1 )、最低落果率(8.63%)、叶绿素含量(48.75SPAD)、最低果汁 pH 值(4.47)。
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引用次数: 0
Research on Carbon Allowance Price Non-linear Structure Characteristics and Regime Switching Mechanism in China's Carbon Market 中国碳市场碳配额价格非线性结构特征及制度转换机制研究
IF 1.8 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Pub Date : 2023-11-23 DOI: 10.15244/pjoes/172763
Jia Wei, Jiahe Chen
Carbon allowance prices (CAP) directly reflect the overall movement of the carbon market, which is the core of the carbon market operation and an important perspective for studying the carbon market. Based on the threshold model and regime switching model, through studying the performance of CAP in China’s carbon market, the paper has the following conclusions. First, CAP show significant non-linear structure and three operating intervals of high, medium, and low, with most of the time being active in the medium and low intervals. Second, there is a stabilization mechanism in the current operation of CAP, which can adequately regulate the trend of CAP fluctuations and eventually converge back to the normal state. Finally, it is found that moderate increases are the main form of CAP volatility in China’s carbon market, but other possible states and the risk of abnormal CAP volatility due to state transformation still exist. Furthermore, for investors, China’s carbon market may be an ideal place to make long-term investments and hedge risks in the future. This paper provides theoretical support for investors and regulators in the carbon market to make scientific decisions based on the carbon market.
碳配额价格(CAP)直接反映了碳市场的整体走势,是碳市场运行的核心,也是研究碳市场的重要视角。基于门槛模型和制度转换模型,通过研究 CAP 在中国碳市场中的表现,本文得出以下结论。第一,CAP 表现出明显的非线性结构,存在高、中、低三个运行区间,大部分时间活跃在中低区间。其次,当前 CAP 运行中存在稳定机制,可以充分调节 CAP 的波动趋势,并最终收敛回正常状态。最后,研究发现,适度增长是中国碳市场 CAP 波动的主要形式,但其他可能的状态和状态转换导致的 CAP 异常波动风险依然存在。此外,对于投资者而言,中国碳市场可能是未来进行长期投资和规避风险的理想场所。本文为碳市场的投资者和监管者基于碳市场做出科学决策提供了理论支持。
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引用次数: 0
‘Our Planet, Our Health’ - Impact of Health Consciousness and Environmental Concern on Green Purchase Behavior: Role of Reference Groups 我们的地球,我们的健康"--健康意识和环境关注对绿色购买行为的影响:参照群体的作用
IF 1.8 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Pub Date : 2023-11-21 DOI: 10.15244/pjoes/172037
Balween Kaur, Veer P. Gangwar, Ganesh Dash, Nusrat Khan, Abdullah Abdulaziz Alkhoraif
The present study attempts to ascertain the impact of health consciousness and environmental concern on millennials’ buying behavior (through attitude and intentions) towards green personal care products. It also assesses reference group influence’s impact on the association between green buying intentions and behaviors. This study collects first-hand data from 402 millennials who use green personal care products to meet their routine needs. A purposive-cum-simple random sampling method was adopted. The partial least squares (PLS) structural equation modeling (SEM) method was used for the analysis. Findings show that health consciousness and environmental concerns impact consumers’ attitudes in predicting green purchase behavior. The formed attitude strongly influences green buying intentions and behavior. In addition, reference group influence dampens the linkages between green purchase intentions and the behavior of Indian millennial consumers. The findings can be used to create new organizational strategies and policies for emerging economies and better understand green consumer behavior.
本研究试图确定健康意识和环保意识对千禧一代购买绿色个人护理产品行为(通过态度和意向)的影响。本研究还评估了参照群体的影响对绿色购买意向和行为之间关联的影响。本研究收集了 402 位使用绿色个人护理产品来满足日常需求的千禧一代的第一手数据。研究采用了目的性暨简单随机抽样方法。采用偏最小二乘法(PLS)结构方程建模法(SEM)进行分析。研究结果表明,健康意识和环保意识会影响消费者预测绿色购买行为的态度。已形成的态度对绿色购买意愿和行为有很大影响。此外,参照群体的影响抑制了印度千禧一代消费者的绿色购买意愿和行为之间的联系。研究结果可用于为新兴经济体制定新的组织战略和政策,并更好地理解绿色消费行为。
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引用次数: 0
Influence of Cambium Mechanism in Plants in Relation to Different Environmental Stresses 不同环境压力对植物寒带机制的影响
IF 1.8 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Pub Date : 2023-11-21 DOI: 10.15244/pjoes/171578
M. Rashid, Yachao Li, T. H. Farooq, Irfan Ahmad, Muhammad Farrakh Nawaz, Muhammad Sohail, Pengfei Wu
The cambial response of most plants varies with exposure to different environmental stresses, affecting their morphological and physiological features. The timing of cambial reactivation contributes to the quality of wood produced and the ability of plants to adapt to environmental conditions. Cambial structure and function provide insights into the genetic components or mechanisms underlying the secondary growth of plants. This study aimed to investigate how environmental stresses such as temperature, water
大多数植物的韧皮部反应会随着暴露于不同的环境压力而变化,从而影响其形态和生理特征。骨架重新激活的时间有助于提高木材质量和植物适应环境条件的能力。逆生叶的结构和功能有助于深入了解植物二次生长的遗传成分或机制。本研究旨在探究环境压力(如温度、水
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引用次数: 0
Characteristics of Bed Profiles Due to Sediment Transport in a Debris River 泥石流中沉积物迁移造成的河床剖面特征
IF 1.8 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Pub Date : 2023-11-21 DOI: 10.15244/pjoes/170763
Gede Tunas, Muh. Galib Ishak, Saparuddin Saparuddin, Rudi Herman
Sediment transport in debris rivers is a unique phenomenon of sediment transport in general. This is related to the complexity of the characteristics of the material transported and the nature of the flow that transports sediment. This work aims to predict potential bed profile changes in one of the debris rivers in Indonesia: the Sombe-Lewara River in Central Sulawesi Province. The control of debris flow in this river has been carried out simultaneously by the relevant government agencies by building sediment control structures along the river section. The study was carried out by hydraulic simulation at the intersection of the Sombe River and Lewara River using the HEC-RAS Model with two input data: average discharge and bed load gradations at both upstream boundaries. The average discharge was obtained by rainfall-runoff transformation using the HEC-HMS Model due to the limited discharge data in the study area, while the sediment gradation data was obtained from laboratory test results based on bed load sample data. Due to the limitations of the observation data, the parameter optimization is only applied to the HEC-RAS model, especially the Manning roughness coefficient by comparing the observed water level elevation with the simulated water level elevation. The results of the study indicate that the bed profile elevation in the upstream confluence of the river tends to increase and the bed profile downstream of the confluence tends to decrease. This is closely related to the transport intensity and bed slope upstream and downstream of the river confluence. The results of this study can be used as a reference for handling sedimentation in debris rivers.
泥石流中的泥沙输运是一般泥沙输运的独特现象。这与泥沙输运物质特性的复杂性和泥沙输运流的性质有关。这项工作旨在预测印度尼西亚泥石流河流之一:中苏拉威西省的 Sombe-Lewara 河的潜在河床剖面变化。相关政府机构通过在河段沿岸修建沉积物控制结构,同时对该河流的泥石流进行控制。研究采用 HEC-RAS 模型对 Sombe 河与 Lewara 河交汇处进行了水力模拟,该模型有两个输入数据:上游边界的平均排水量和河床负荷等级。由于研究区域的排水数据有限,平均排水量是通过 HEC-HMS 模型的降雨-径流转换获得的,而泥沙分级数据则是根据床面负荷样本数据的实验室测试结果获得的。由于观测数据的限制,参数优化仅应用于 HEC-RAS 模型,特别是通过比较观测水位高程和模拟水位高程来优化曼宁粗糙度系数。研究结果表明,河流上游汇合处的河床剖面高程呈上升趋势,而汇合处下游的河床剖面高程呈下降趋势。这与河流汇合处上下游的运输强度和河床坡度密切相关。这项研究的结果可作为处理泥石流河道泥沙淤积的参考。
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引用次数: 0
Second Life Multimedia Online Platform in Landscape Design: How do Multiverse Technologies Help Designers in Creating Environmentally Safe Projects? 景观设计中的第二人生多媒体在线平台:多元宇宙技术如何帮助设计师创建环境安全项目?
IF 1.8 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Pub Date : 2023-11-21 DOI: 10.15244/pjoes/172760
Lei Jin, Yanli Song, Xun Liu
The research is focused on finding ways to develop safe environment design using virtual worlds like Second Life and Metavers and identifying the best opportunities for this. The novelty of the study lies in a wide representative survey of experienced participants in the process of designing a secure environment using virtual tools and obtaining their generalized Delphi assessment of the prospects and optimal capabilities of this process. The survey involved 228 participants from 31 countries. The participants formulated a set of possibilities and patterns of possible development and then gave them an assessment. The results of the study showed that designers and planners tend to distrust the possibilities of modeling and predicting the state of the urban safe environment in virtual spaces and tend to perceive it as a means of creating projects, revealing the imagination and talent of the designer and a space for communication and co-design with the expert community and communities. It was revealed that they see the use of augmented reality for the presentation of real objects in the virtual world and information about objects in the real world as the most promising direction of development.
研究的重点是找到利用第二人生和 Metavers 等虚拟世界开发安全环境设计的方法,并确定这方面的最佳机会。这项研究的新颖之处在于,在利用虚拟工具设计安全环境的过程中,对经验丰富的参与者进行了一次具有广泛代表性的调查,并获得了他们对这一过程的前景和最佳能力的综合德尔菲评估。来自 31 个国家的 228 人参加了调查。参与者提出了一系列可能的发展可能性和模式,然后对其进行了评估。研究结果表明,设计师和规划师倾向于不信任在虚拟空间中模拟和预测城市安全环境状况的可能性,而倾向于将其视为一种创造项目的手段,揭示设计师的想象力和才能,以及与专家团体和社区进行交流和共同设计的空间。据透露,他们认为利用增强现实技术在虚拟世界中展示真实物体和真实世界中的物体信息是最有前途的发展方向。
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引用次数: 0
Nexus of Globalization and Environmental Quality: Investigating Heterogeneous Effects through Quantile Regression Analysis 全球化与环境质量的联系:通过量值回归分析探究异质性效应
IF 1.8 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES Pub Date : 2023-11-21 DOI: 10.15244/pjoes/172042
Tran Thai Ha Nguyen, Thi Anh Le, Thang Le-Dinh, Thi Hanh Pham, Gia Quyen Phan, Tu My Vuu, Ha Manh Bui
This study examines the effects of globalization on environmental quality, explicitly focusing on the scale, technique, and composition aspects proposed by KOF Swiss Economic Institute. A large sample of 115 developed and developing countries is analyzed to understand how different dimensions of globalization impact environmental degradation at various levels, using the quantile regression method. The results indicate that globalization has a positive effect on emissions at lower and middle quantiles, but at the upper quantiles, the effect becomes negative, based on the distribution of CO 2 per capita (CO2PC). Additionally, each dimension of globalization has its influence on emissions: (i) Renewable energy consumption significantly negatively impacts environmental quality across most percentiles, except for the 90 th percentile. (ii) Foreign direct investment inflows positively affect environmental quality at lower quantiles but negatively at higher quantiles. (iii) Urbanization initially correlates negatively with environmental degradation at the 50 th percentile, but this relationship turns positive at the 75 th percentile. Overall, globalization benefits countries facing environmental degradation seriously, while countries maintaining a high quality environment have not benefited much from globalization. These findings offer valuable insights for policymakers in developing effective environmental policies considering diverse economic and environmental conditions across countries.
本研究探讨了全球化对环境质量的影响,明确侧重于 KOF 瑞士经济研究所提出的规模、技术和构成方面。通过对 115 个发达国家和发展中国家的大量样本进行分析,使用量子回归法了解全球化的不同层面如何影响不同层次的环境退化。结果表明,根据人均二氧化碳排放量(CO2PC)的分布情况,全球化对中低层量值国家的排放量有积极影响,但对高层量值国家的影响则变为消极。此外,全球化的每个维度对排放都有影响:(i) 除第 90 个百分位数外,可再生能源消费对大多数百分位数的环境质量都有显著的负面影响。(ii) 外国直接投资流入对较低百分位数的环境质量有积极影响,但对较高百分位数的环境质量有消极影响。(iii) 城市化最初在第 50 个百分位数与环境退化呈负相关,但在第 75 个百分位数则转为正相关。总体而言,全球化使面临严重环境退化的国家受益,而保持高质量环境的国家从全球化中受益不大。这些发现为政策制定者在考虑各国不同的经济和环境条件时制定有效的环境政策提供了宝贵的启示。
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引用次数: 0
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Polish Journal of Environmental Studies
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