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The Impact of China’s New EnvironmentalLaw on the Financial Performanceof Heavy Polluting Enterprises 中国新环保法对重污染企业财务绩效的影响
Pub Date : 2024-04-04 DOI: 10.15244/pjoes/178199
Xin Jin, Xue Lei
the ecological civilization system in China and other countries, and achieving high-quality development. Previous research has explored the benefits of ER from the perspectives of ER and corporate decision-making, ER and corporate performance, and the policy outcomes of the NEL. However, there is a lack
中国和其他国家的生态文明制度,实现高质量发展。以往的研究从企业资源与企业决策、企业资源与企业绩效、国家环境影响评价的政策成果等角度探讨了企业资源的效益。然而,缺乏
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引用次数: 0
Characterization and Influencing Factors of TraceElements, Tea Polyphenols, Caffeine, Free AminoAcids and Water Leachate Content in Tea 茶叶中微量元素、茶多酚、咖啡因、游离氨基酸和水浸出物含量的特征及影响因素
Pub Date : 2024-04-04 DOI: 10.15244/pjoes/183087
Yufeng Gong, Wei Ren, Zhenming Zhang, Fupeng Li, Daigang Xu, Yuli Zhang
: In this study, three major tea production areas (Guiding County, Duyun City
:在这项研究中,三个主要的茶叶产区(贵定县、都匀市、黔东南州)都是茶叶的主要产地。
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引用次数: 0
Evaluation of Climatic and Anthropogenic Impactson Phytosociological Aspects and ConservationStatus of Native Flora in One of Protected andUnprotected Habitats of Cholistan Desert, Pakistan 巴基斯坦乔里斯坦沙漠一处受保护和未受保护栖息地的气候和人类活动对植物社会学方面和本地植物保护现状的影响评估
Pub Date : 2024-04-04 DOI: 10.15244/pjoes/178451
Maqbool Ahmed, N. Naz, Muhammad Abdullah, Muhammad Mahmood Ahmed, Muhammad Faisal Maqsood, Usman Zulfiqar, Kamran Ahmad, Mona S. Alwahibi, M. Elshikh
This study aimed to assess the long term effects of anthropogenic, climatic, edaphic, and seasonal variations on present floristic and ecological status of two distinct sites i.e., protected (Biodiversity Park) and unprotected (nearby areas) in the Derawar region of Lesser Cholistan Desert. The study was conducted for four years over a seasonal period of spring 2019 (February-March) to fall 2022 (September to October). For the exploration of maximum diversity at both sites, quadrats of 10 × 10 m were placed randomly. Ten soil, twelve anthropogenic, seven environmental and eight seasonal variables were used to assess their relationship with vegetation of both sites during four years of study. For statistical analysis, data was processed in the SPSS for LSD test and R Studio for Canonical Correspondence Analysis (CCA) and heat map preparation. A total of 84 plant species, belonging to 62 genera and 26 families, were identified in the Derawar region. Herbaceous plants comprised the majority, with 42 species, followed by grasses (22 species), shrubs (12 species), trees (7 species), and one sedge species. The protected site exhibited higher species diversity, with 76 species from 23 families, compared to the unprotected site, which had 49 species from 15 families. Species richness, Simpson index, and Shannon index showed significant declines in diversity from the protected to the unprotected site.
本研究旨在评估人类活动、气候、土壤和季节变化对小乔利斯坦沙漠德拉瓦尔地区两个不同地点(即受保护地点(生物多样性公园)和未受保护地点(附近地区))的植物学和生态学现状的长期影响。研究为期四年,时间跨度为 2019 年春季(2 月至 3 月)至 2022 年秋季(9 月至 10 月)。为了探索这两个地点的最大多样性,随机放置了 10 × 10 米的四分格。在四年的研究中,使用了 10 个土壤变量、12 个人为变量、7 个环境变量和 8 个季节变量来评估它们与两个地点植被的关系。在进行统计分析时,使用 SPSS 对数据进行了 LSD 检验,并使用 R Studio 对数据进行了典型对应分析(CCA)和热图绘制。德拉瓦尔地区共发现 84 种植物,隶属于 62 属 26 科。草本植物占多数,有 42 种,其次是禾本科植物(22 种)、灌木(12 种)、乔木(7 种)和一种莎草。受保护地点的物种多样性较高,有 23 科 76 种,而未受保护地点有 15 科 49 种。物种丰富度、辛普森指数和香农指数显示,从受保护地点到未受保护地点,物种丰富度显著下降。
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引用次数: 0
Urban Slums and Suburban Sprawls:Environmental Challenges of Safe,Resilient and Sustainable Cities 城市贫民窟和郊区扩张:安全、有韧性和可持续城市的环境挑战
Pub Date : 2024-04-04 DOI: 10.15244/pjoes/166592
A. F. Ibimilua, Omoboye Foyeke Ibimilua
This paper presents a review of urban slum and suburban sprawl situations across the world. The article is more descriptive in nature than analytical and has the objective of bringing out the interrelationships among urbanization, urban slums, suburban sprawls, and environmental sustainability. It begins by examining the concepts of urbanization, urban slums, suburban sprawl, safe cities, resilient cities, and sustainable cities. It then goes on to look at the causes and consequences of urban slums and suburban sprawl. Findings from the study revealed that slums and suburban sprawls are cogs in the wheel of safe, resilient, and sustainable cities. Therefore, the study recommends efficient urban management, the implementation of urban master plans, development control, and citizen participation in urban planning and management. Above all, for the achievement of safe, resilient, and sustainable cities, this study places more emphasis on the use of modern techniques of environmental monitoring and management.
本文回顾了世界各地城市贫民窟和郊区无计划扩展的情况。文章的描述性多于分析性,旨在阐明城市化、城市贫民窟、郊区无计划扩展和环境可持续性之间的相互关系。文章首先探讨了城市化、城市贫民窟、郊区无计划扩展、安全城市、弹性城市和可持续城市等概念。接着,研究了城市贫民窟和郊区无计划扩展的原因和后果。研究结果表明,贫民窟和郊区无计划扩展是安全城市、有韧性城市和可持续城市车轮上的齿轮。因此,研究建议进行有效的城市管理,实施城市总体规划、发展控制以及公民参与城市规划和管理。最重要的是,为了实现安全、有韧性和可持续发展的城市,本研究更加强调使用现代环境监测和管理技术。
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引用次数: 0
Retesting the Innovation Motivation Effectof the Low-Carbon City Pilot Policy inChina: Evidence from Supply Chains 重新检验中国低碳城市试点政策的创新动力效应:来自供应链的证据
Pub Date : 2024-04-03 DOI: 10.15244/pjoes/185540
Qianqian Xu, Shuzhen Zhu
Accurately evaluating the innovation motivation effect of the low-carbon city pilot policy is significant for improving and promoting the pilot policy. However, no study has specifically examined the above effect from the point of view of policy spillover effects among customers and suppliers. Based on this, we introduce the perspective of the supply chain spillover effect and collect annual data from Chinese-listed firms between 2008 and 2020. Using the differences-in-differences (DID) model, we have tested the relationship between the low-carbon city pilot policy in the location of the largest customer and affiliated suppliers’ innovation behavior. Our findings indicate that implementing the low-carbon city pilot policy in the location of the largest customer incentivizes suppliers to invest in innovation. Additionally, our research finds that financing constraints and market monopoly power moderate the supply chain innovation spillover. Interestingly, the impact of the policy is more pronounced among suppliers in high-carbon and low-tech sectors as well as those in the eastern region.
准确评估低碳城市试点政策的创新激励效应,对于完善和推广试点政策意义重大。然而,目前还没有研究从政策在客户和供应商中的溢出效应角度对上述效应进行专门研究。基于此,我们引入了供应链溢出效应的视角,并收集了 2008 至 2020 年间中国上市公司的年度数据。利用差分(DID)模型,我们检验了最大客户所在地的低碳城市试点政策与关联供应商创新行为之间的关系。我们的研究结果表明,在最大客户所在地实施低碳城市试点政策会激励供应商进行创新投资。此外,我们的研究还发现,融资约束和市场垄断力会缓和供应链创新溢出效应。有趣的是,该政策对高碳和低技术行业以及东部地区供应商的影响更为明显。
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引用次数: 0
The Impact of the Digital Economy on the CarbonEmissions of the Sports Industry– Based on Panel Data on 30 Provinces in China 数字经济对体育产业碳排放的影响--基于中国 30 个省的面板数据
Pub Date : 2024-04-03 DOI: 10.15244/pjoes/178327
Chunjing Ouyang, Chen Zhong, Yong Tang, Ailiang Xie
The digital economy (DE) is characterized by high efficiency and being green, intelligent and innovative, which means that it can reduce carbon emissions and empower the green development of the sports industry. Therefore, exploring the relationship between digital economy and carbon emissions in the sports industry holds great significance. Based on 2010-2021 panel data covering 30 provinces in China, the digital economy development level (DEL) and carbon emissions of the sports industry (CESI) are measured. Then, a two-way fixed effect model, threshold effect model and spatial Durbin model are used to examine the impact of the digital economy on the carbon emissions of the sports industry. The results show the following: (1) After multiple tests, the development of the digital economy has a significant inhibitory effect on the CESI; in other words, the development of the digital economy can drive the low-carbon development of the sports industry. (2) The influence of the development of the digital economy on the CESI has a nonlinear feature of an increasing marginal effect and a spatial spillover effect. (3) From the perspective of regional heterogeneity, the development dividend of the digital economy in the developed eastern region of China is greater than that in the less developed central and western regions, having a more significant impact on the low-carbon development of the sports industry. Therefore, it is necessary for China to speed up the construction of digital infrastructure, build an integrated layout of digital infrastructure, give full play to the radiating role of the digital economy, and implement differentiated development paths based on regional comparative advantages.
数字经济(DE)具有高效、绿色、智能、创新的特点,这意味着数字经济可以减少碳排放,为体育产业的绿色发展赋能。因此,探讨数字经济与体育产业碳排放的关系具有重要意义。本文基于 2010-2021 年中国 30 个省份的面板数据,对数字经济发展水平(DEL)和体育产业碳排放(CESI)进行了测算。然后,运用双向固定效应模型、门槛效应模型和空间 Durbin 模型检验数字经济对体育产业碳排放的影响。结果显示如下:(1)经过多重检验,数字经济的发展对 CESI 有显著的抑制作用;换言之,数字经济的发展可以带动体育产业的低碳发展。(2)数字经济发展对 CESI 的影响具有边际效应递增和空间溢出效应的非线性特征。(3)从区域异质性角度看,我国东部发达地区的数字经济发展红利大于中西部欠发达地区,对体育产业低碳发展的影响更为显著。因此,我国有必要加快数字基础设施建设,构建数字基础设施一体化布局,充分发挥数字经济的辐射作用,根据区域比较优势,实施差异化发展路径。
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引用次数: 0
Searching for the Most Suited Distributionand Estimation Method for At-Site Flood FrequencyAnalysis: A Case of the Chenab River 为现场洪水频率分析寻找最合适的分布和估算方法:切纳布河案例
Pub Date : 2024-04-03 DOI: 10.15244/pjoes/185970
S. H. Bhatti, Muhammad Umar, S. Shongwe, Muhammad Irfan, Mahmood Ul Hassan
The article deals with at-site flood frequency analysis for different gauging stations of the Chenab River in Pakistan. The study aimed at recommending the most suitable probability distribution and efficient method of parameter estimation for each gauging site. Generalized extreme value, generalized logistic, Gumbel, generalized Pareto, and reverse Gumbel probability models are fitted to the annual peak flow/discharge. For each gauging site, the parameters of these distributions are estimated through L-moments, maximum likelihood, least squares, weighted least squares, and relative least squares methods. For each site, the probability models with a particular estimation method are ranked on the basis of goodness-of-tests and accuracy measures, and then the most suitable pair of model and estimation method is identified through a total rank. The results indicate that the generalized Pareto distribution is the best fit for Marala, Khanki, Qadirabad, and Punjnad, while the generalized extreme value distribution is the most suited for the Trimmu gauging site. As far as the estimation method is concerned, least squares and weighted least squares methods are more accurate for most of the gauging sites. Finally, for each gauging site, the best-suited probability model is used to estimate the annual peak flow and to construct associated confidence intervals for different return years.
文章论述了对巴基斯坦切纳布河不同测站的现场洪水频率分析。研究旨在为每个测站推荐最合适的概率分布和有效的参数估计方法。对年峰值流量/排水量拟合了广义极值、广义对数、Gumbel、广义帕累托和反向 Gumbel 概率模型。对于每个测站,这些分布的参数通过 L-矩、最大似然法、最小二乘法、加权最小二乘法和相对最小二乘法进行估算。对于每个测站,采用特定估算方法的概率模型将根据检验结果和精度指标进行排序,然后通过总排序确定最合适的模型和估算方法。结果表明,广义帕累托分布最适合马拉拉、汉基、卡迪拉巴德和蓬杰纳德,而广义极值分布最适合特里姆测站。就估算方法而言,最小二乘法和加权最小二乘法对大多数测站都更为准确。最后,对于每个测站,采用最合适的概率模型估算年峰值流量,并构建不同回归年的相关置信区间。
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引用次数: 0
Land Use Decision-Making and EcosystemService Trade-Offs: A Case Study of AnhuiShengjin Lake National Nature Reserve, China 土地利用决策与生态系统服务权衡:中国安徽升金湖国家级自然保护区案例研究
Pub Date : 2024-04-03 DOI: 10.15244/pjoes/178315
Li Wang, Jialong Xu, Yuhang Jiang, Ying Jin, Yuan Wang
The transformative period of reshaping China’s Protected Area System (CPAs) requires nature reserves (NRs) to pay greater attention to policy-driven changes in land use as well as ecosystem. We take Anhui Shengjin Lake National Nature Reserve (SJLNNR) as a case study to examine policy-driven changes in ecosystem services and their trade-offs. We find that (1) policy implementation significantly increased the area of wetlands and forests while decreasing the area of cropland and impervious land. Ideally, the area of wetlands and forests could be increased by ~10200 hm 2 . (2) Habitat quality (HQ) and water conservation (WC) are enhanced, with the highest enhancement of 13.09% and 28.18%, respectively. Carbon storage (CS) and food production (FP) showed opposite trends across scenarios. (3) CS demonstrates trade-offs with other ESs, while the remaining ESs displayed varying degrees of synergistic relationships. Nonetheless, it should be noted that transforming extensive farmland and impervious land into diverse land-use types might not improve the synergies relationship of ESs. Additionally, the full protection scenario (FPS) demonstrated greater advantages in terms of HQ, WC, and CS.
中国保护区体系(CPAs)的转型期要求自然保护区(NRs)更加关注政策驱动的土地利用和生态系统变化。我们以安徽升金湖国家级自然保护区(SJLNNR)为案例,研究政策驱动的生态系统服务变化及其权衡。我们发现:(1) 政策实施显著增加了湿地和森林面积,同时减少了耕地和不透水土地面积。理想情况下,湿地和森林面积可增加约 10200 hm 2。 (2) 生境质量(HQ)和水源保护(WC)得到提高,最高分别提高了 13.09% 和 28.18%。碳储存(CS)和粮食生产(FP)在不同情景下呈现相反趋势。(3) 碳储存与其他生态系统服务之间存在权衡关系,而其余生态系统服务之间存在不同程度的协同关系。然而,需要注意的是,将广阔的农田和不透水的土地转变为多样化的土地利用类型可能并不会改善生态系统服务的协同关系。此外,全面保护方案(FPS)在 HQ、WC 和 CS 方面表现出更大的优势。
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引用次数: 0
Optimizing Seed Rate and Herbicide DosesWith or Without Adjuvant for Weed Controland Its Influence on Yield of Winter Wheat 优化种子用量和除草剂剂量(含或不含佐剂)以控制杂草及其对冬小麦产量的影响
Pub Date : 2024-04-02 DOI: 10.15244/pjoes/185987
Mujahid Hussain, Nadia Rafique, Rehana Kaousar, Syed Ijaz Ul Haq, C. Shan, Guobin Wang, Shizhou Wang, Yubin Lan
A field trial was conducted to evaluate the interactive effect of seed rates and herbicides in combination with adjuvants on weed dynamics and wheat yield. This study was comprised of 3 seed rates; 100 kg h -1 (S1), 130 kg h -1 (S2), 160 kg h -1 (S3), and 3 herbicide dosages (100% recommended dose of Mesosulfuron-methyl + Iodosulfuron-methyl-sodium (H1), 75% of the dose (H2), and 75% dose + adjuvant (H3). The results revealed that average weed density, fresh weight, and dry weight were lower in seed rate 160 kg h -1 by 33.37%, 31.52%, and 28.78% compared to 100 kg h -1 before herbicide application, respectively. After 30 days of herbicide application, weed density, fresh weight, and dry weight were 42.16%, 34.74%, and 40.91% less in treatment with the combination of S3H3 compared with S1H2. Yield and yield parameters were significantly affected by the different seed rates and herbicide dosages. 1000-grain weight, spikelets, and grains/spike were greater in the lower seed rate (100 kg h -1 ) with H3, while the grain yield, biological yield, and harvest index were 26.05%, 21.81%, and 5.39% higher in the treatment S3H3 as compared with S1H2. To achieve optimal grain yield, a seed rate of 160 kg h -1 is recommended, along with 75% of the recommended herbicide dose with adjuvant.
进行了一项田间试验,以评估种子率和除草剂与佐剂结合对杂草动态和小麦产量的交互影响。这项研究包括 3 种播种率:100 千克/小时-1(S1)、130 千克/小时-1(S2)、160 千克/小时-1(S3)和 3 种除草剂剂量(100% 中磺隆+碘磺隆-甲基钠推荐剂量(H1)、75% 剂量(H2)和 75% 剂量+佐剂(H3))。结果表明,与施用除草剂前的 100 kg h -1 相比,160 kg h -1 种子率的平均杂草密度、鲜重和干重分别降低了 33.37%、31.52% 和 28.78%。施用除草剂 30 天后,与 S1H2 相比,S3H3 组合处理的杂草密度、鲜重和干重分别减少了 42.16%、34.74% 和 40.91%。不同播种量和除草剂用量对产量和产量参数有明显影响。与 S1H2 相比,S3H3 处理的千粒重、穗粒数和粒/穗数在较低播种率(100 kg h -1 )的 H3 处理中更高,而谷物产量、生物产量和收获指数则分别高出 26.05%、21.81% 和 5.39%。为获得最佳谷物产量,建议使用 160 kg h -1 的播种量,以及 75% 的建议除草剂剂量和佐剂。
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引用次数: 0
Community-Centric Carbon ReductionInitiatives and Their Impact on Grid EmissionFactors: A Case Study in Kazakhstan 以社区为中心的碳减排倡议及其对电网排放因素的影响:哈萨克斯坦案例研究
Pub Date : 2024-04-02 DOI: 10.15244/pjoes/178314
Marat Kozhikov, Paata Janelidze, Akbilek Seitmukhanbet, Yessekina Aiman, Almas Karymsakov, T. Mkilima
This study investigated how local communities in Kazakhstan perceive, engage with, and potentially influence the adoption of carbon dioxide utilization technologies in their regions. Assess the impact of community-led initiatives on grid emission factors. In this study, qualitative interviews were conducted with community members residing in regions characterized by substantial carbon emissions or high energy consumption. These interviews delved into their levels of awareness, attitudes, and willingness to engage in local carbon reduction initiatives through the utilization of carbon dioxide. Furthermore, community workshops and focus group discussions were organized to facilitate community participation, foster dialogue about potential carbon utilization projects and enabling the collection of their ideas and concerns. Additionally, in-depth case studies were undertaken by selecting specific communities (Astana and Almaty), allowing for a comprehensive examination of ongoing local initiatives related to carbon utilization. These initiatives encompassed a wide array of community-led projects, collaborations with local industries, and grassroots innovations, providing valuable insights into community-driven solutions for carbon reduction. The survey results revealed that respondents strongly agree that communities face significant challenges in implementing carbon reduction initiatives, with concerns about funding and pessimism about the opportunities for success. However, there was optimism about the role of technological advancements in enhancing carbon reduction efforts. Also the survey showed that there is a strong consensus on the importance of community engagement
本研究调查了哈萨克斯坦当地社区如何看待、参与并潜在影响二氧化碳利用技术在其所在地区的采用。评估社区主导的倡议对电网排放因素的影响。本研究对居住在碳排放量大或能源消耗高地区的社区成员进行了定性访谈。这些访谈深入探讨了他们的认识水平、态度以及通过利用二氧化碳参与当地碳减排行动的意愿。此外,还组织了社区研讨会和焦点小组讨论,以促进社区参与,推动关于潜在碳利用项目的对话,并收集他们的想法和关切。此外,还通过选择特定社区(阿斯塔纳和阿拉木图)进行了深入的案例研究,以便对当地正在开展的与碳利用有关的活动进行全面考察。这些举措包括一系列由社区主导的项目、与当地产业的合作以及基层创新,为社区驱动的碳减排解决方案提供了宝贵的见解。调查结果显示,受访者非常认同社区在实施碳减排倡议时面临重大挑战,对资金问题感到担忧,对成功的机会感到悲观。不过,人们对技术进步在加强碳减排工作中的作用持乐观态度。调查还显示,受访者对社区参与的重要性达成了强烈共识
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引用次数: 0
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Polish Journal of Environmental Studies
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