با سلام خدمت کاربران در صورتی که با خطای سیستم پرداخت بانکی مواجه شدید از طریق کارت به کارت (6037997535328901 بانک ملی ناصر خنجری ) مقاله خود را دریافت کنید (تا مشکل رفع گردد).
ردیف | عنوان | نوع |
---|---|---|
1 |
Urban natural resource accounting based on the system of environmental economic accounting in Northwest China: A case study of Xi’an
حسابداری منابع طبیعی شهری بر اساس سیستم حسابداری اقتصادی محیطی در شمال غربی چین: مطالعه موردی شیان-2021 Drawing lessons from the System of Environmental and Economic Accounting Central Framework (SEEA-CF) and
Experimental Ecosystem Accounting (SEEA-EEA), China is carrying out a pilot project for ecosystem accounting
at the provincial level. Compiling and applying the principles, methods and ecosystem accounts of natural capital
accounting in Northwest cities are new explorations. This study considers the degradation and fragility of the
urban ecosystem in Xi’an and discusses urban natural resource (NR) accounting in terms of the physical quantity
and monetary value. We took Xi’an as a case to demonstrate how to use the SEEA to analyze NR changes and the
effectiveness of local eco-environmental management policies based on the characteristics of cities. The results
show that, compared with using the physical quantity, calculating the monetary value according to NR resto-
ration obligation, NR maintenance obligation better reflects the utilization level of urban NR, measures resource
depletion and degradation, and maximizes the utility of the accounting results. This study focuses on using NR
accounting methods for urban water resources, land resources and mineral resources, and evaluating ecosystem
services for purposes of ecological restoration. It lays a foundation for consolidating urban gross ecosystem
product accounting results in line with the SEEA and provides support for future study. keywords: پایتخت طبیعی | ارزش فیزیکی | ارزش پولی | رادیو | Natural capital | Physical value | Monetary value | SEEA |
مقاله انگلیسی |
2 |
Effect of REDDþ projects on local livelihood assets in Keo Seima and Oddar Meanchey, Cambodia
تأثیر پروژه های REDDþ بر دارایی های معیشت محلی در Keo Seima و Oddar Meanchey ، کامبوج-2020 Climate-change mitigation projects are expected to improve local livelihoods in targeted areas. Several REDDþ
projects aimed at reducing emissions from deforestation and forest degradation, conserving and enhancing forest
carbon stocks, and sustainably managing forests have been implemented in Cambodia but few studies have
examined the effects on local livelihoods before and during project implementation. Our study applies a sustainable
livelihood framework to assess the livelihood assets of local communities in the Oddar Meanchey and
Keo Seima REDDþ project sites in Cambodia before and during project implementation. Five capital assets,
namely natural, physical, human, financial, and social capital, are assessed and scored on a 1-to-5 Likert scale.
Data analysis collected through 252 interviews in Oddar Meanchey and Keo Seima reveals a slight increase in
livelihood assets in both sites from project validation to implementation. Generally, the mean scores for local
livelihood assets increased from 2.81 0.07 (is followed by the standard error) and 2.66 0.06 to 3.07 0.09
and 3.06 0.08 in Oddar Meanchey and Keo Seima, respectively. Nevertheless, natural capital assets sharply
declined from 3.50 and 3.32 to 2.09 and 2.25, respectively. Respondents mainly blamed illegal logging for the
decline, suggesting that strict patrolling and enforcement must be implemented. Furthermore, the scarcity of
carbon-credit buyers and the projects’ inability to generate carbon-based revenues has led to dissatisfaction
among local communities, inducing avoidable illegal activities in pursuit of short-term benefits. A financial
mechanism to ensure sufficient and sustained financial support regardless of carbon-market volatility is urgently
needed. Keywords: Business | Economics | Livelihood improvement | REDDþ | Natural capital | Physical capital | Human capital | Financial capital | Carbon credit | Agricultural policy | Agroforestry | Ecological restoration | Forestry | Human geography | Natural resource management | Sustainable development | Ecosystem services | Biodiversity |
مقاله انگلیسی |
3 |
Identifying the terrestrial carbon benefits from ecosystem restoration in ecologically fragile regions
شناسایی فواید کربن زمینی از ترمیم اکوسیستم در مناطق شکننده محیط زیست-2020 Ecosystem restoration is an urgent and vital measure to restore degraded land in ecologically fragile regions. The
terrestrial carbon sequestration capacity is important to indicate the effectiveness of ecosystem restoration,
which has attracted the interest of many researchers. Ecologically fragile regions cover a large area in China, but
few studies have focused on the carbon benefit of ecological restoration in these regions. In this study, we
investigated the spatial and temporal changes in the carbon benefit, indicated by net primary productivity
(NPP), in ecologically fragile regions in China. We evaluated the contributions of ecological restoration and
climate change to terrestrial ecosystem carbon sink changes. The results showed that the ecological restoration
projects significantly improved the carbon sequestration capacity in most of the ecologically fragile regions.
From 2001–2017, the annual NPP of the entire study region was 460.1±5.4 Tg C yr−1, and more than 70 % of
the ecologically fragile region experiencing a significant (p<0.05) increase. The effect of ecological restoration
projects significantly intensified and was the main driver of the NPP growth in 87 % of the study region. The land
use and land cover (LULC) change pattern indicates that the restoration project-induced conversion of agricultural
land contributed to nearly 10 % of the total carbon sequestration after 2010. However, some extreme
climatic conditions weakened the effectiveness of ecological restoration projects, highlighting the need for
stricter management. Finally, this study identified the key area for effective ecological restoration in ecologically
fragile regions in China. Keywords: Carbon sequestration | Ecological restoration project | Ecologically fragile region |
مقاله انگلیسی |
4 |
Effect of REDDþ projects on local livelihood assets in Keo Seima and Oddar Meanchey, Cambodia
تأثیر پروژه های REDDþ بر دارایی های معیشتی محلی در Keo Seima و Oddar Meanchey ، کامبوج-2020 þClimate-change mitigation projects are expected to improve local livelihoods in targeted areas. Several REDDþ projects aimed at reducing emissions from deforestation and forest degradation, conserving and enhancing forest carbon stocks, and sustainably managing forests have been implemented in Cambodia but few studies have examined the effects on local livelihoods before and during project implementation. Our study applies a sus- tainable livelihood framework to assess the livelihood assets of local communities in the Oddar Meanchey and Keo Seima REDD project sites in Cambodia before and during project implementation. Five capital assets, namely natural, physical, human, financial, and social capital, are assessed and scored on a 1-to-5 Likert scale. Data analysis collected through 252 interviews in Oddar Meanchey and Keo Seima reveals a slight increase in livelihood assets in both sites from project validation to implementation. Generally, the mean scores for local livelihood assets increased from 2.81 T 0.07 (Tis followed by the standard error) and 2.66 T 0.06 to 3.07 T 0.09 and 3.06 T 0.08 in Oddar Meanchey and Keo Seima, respectively. Nevertheless, natural capital assets sharply declined from 3.50 and 3.32 to 2.09 and 2.25, respectively. Respondents mainly blamed illegal logging for the decline, suggesting that strict patrolling and enforcement must be implemented. Furthermore, the scarcity of carbon-credit buyers and the projects’ inability to generate carbon-based revenues has led to dissatisfaction among local communities, inducing avoidable illegal activities in pursuit of short-term benefits. A financial mechanism to ensure sufficient and sustained financial support regardless of carbon-market volatility is urgently needed. Keywords: Business | Economics | Livelihood improvement | REDDþ | Natural capital | Physical capital | Human capital | Financial capital | Carbon credit | Agricultural policy | Agroforestry | Ecological restoration | Forestry | Human geography | Natural resource management | Sustainable development | Ecosystem services | Biodiversity |
مقاله انگلیسی |
5 |
Soil and water conservation effects driven by the implementation of ecological restoration projects: Evidence from the red soil hilly region of China in the last three decades
اثرات حفاظت از خاک و آب ناشی از اجرای پروژه های مرمت زیست محیطی: شواهدی از منطقه تپه ای خاک سرخ چین در سه دهه گذشته-2020 China’s soil and water conservation (SWC) has gradually developed into a national key ecological construction
project, and its scale and coverage have been expanding. However, the distribution characteristics
of soil and water conservation measures (SWCMs) under ecological restoration projects and the
water storage and soil conservation benefits from a macro perspective are not yet clear. To solve this
problem, first of all, the red soil hilly region (RSHR) of China has been chosen to analyze the 30-year
process and spatial trends of SWCMs in ecological restoration projects. The spatial distribution of SWCMs
is analyzed from the three-dimensional plane of level and elevation. In addition, four benefit characteristics
of SWCMs have been obtained by comparing the amount of water and soil protected and the
intensity of soil erosion. Finally, the paper explores methods that improve the efficiency of SWC in key
areas. The research results show that the paradigm of SWC changes from comprehensive management to
ecological rules and the goal of SWCMs has shifted from initial farmland maintenance to natural forest
restoration, and the average soil erosion has not only decreased by 291 t/(km2a) as a whole but has also
reflected the transformation from agriculture to ecology in the national ecological restoration project
strategy. The distribution model of SWCMs on the horizontal plane is a convex second-order function. In
the vertical direction, the proportion of measures distributed in hilly areas was 38%, higher than that in
plain and mountain areas. Moreover, SWCMs are concentrated in cultivated land and forest land, among
which the proportion of terraces, SWC forests and grass planting measures is as high as 35% in areas with
high erosion. For the RSHR in the four SWC benefits of group characteristics and the distribution ratio,
respectively: SWC ability and soil erosion intensity are lower (group 1, 9%). There is a lower amount of
soil and water storage and higher intensity of soil erosion (group 2, 19%). The amount of soil and water
storage is large, and the intensity of soil erosion is low (group 3, 27%). Soil and water storage and soil
erosion intensity are both high (group 4, 13%). In a word, it is necessary to improve the proportion of SWC
forest construction in river basins and intensive agricultural cultivation areas in national key SWC areas
to enhance ecosystem service functions. This paper analyzes the pattern changes and benefit characteristics
of SWCMs from a macro perspective, which provides a new perspective for the large-scale study
of SWC in the future. This result in preventing soil erosion aims to make China’s ecological civilization
construction and ecological management more sustainable. Keywords: Soil and water Conservation measures | Red soil hilly region | Soil erosion | Ecological restoration program | Soil and water Conservation |
مقاله انگلیسی |
6 |
Determinants of public satisfaction with an Urban Water environment treatment PPP project in Xuchang, China
عوامل تعیین کننده رضایت عمومی از یک پروژه PPP تصفیه آب محیط شهری در زوچانگ ، چین-2020 City dwellers are critical stakeholders in the case of urban water environment treatment Public-Private
Partnership projects (UWETP-PPP). This type of partnership is increasingly popular in China.
Accordingly, public satisfaction should be considered in any performance evaluation of such a
partnership. However, little attention has been paid to identify factors that affect public satisfaction with UWETP-PPP in scholarly studies. To address this gap, this case study aims to apply structural equation modeling (SEM) to explain and identify the determinants of public satisfaction with
UWETP-PPP in Xuchang, China. Furthermore, the findings from this case study are intended to
inform the development of more effective management strategies for a special-purpose vehicle (SPV)
using importance-performance analysis (IPA). A total of 240 questionnaires on public satisfaction
were collected through the case of the water environment treatment and ecological restoration project
in Xuchang, China. This paper firstly employs exploratory factor analysis to extract 6 primary factors
from 33 preliminary indicators that affect the public satisfaction with an UWETP-PPP to determine
the factor structure of the model. Then, confirmatory factor analysis was used to verify the goodness
of fit between the model and original data. Finally, IPA was applied to assist SPV in diagnosing
potential management defects and determine the priority of water environment treatment for the
sample of respondents based on SEM analysis. These findings provide a reference for the evaluation
of public satisfaction in eco-environmental PPP projects. Moreover, the findings can inform strategic
analysis to improve the allocation of limited resources more effectively. Keywords: Public Satisfaction | Urban Water Environment Treatment | Public-Private Partnership | Structural Equation Modeling | Importance–Performance Analysis |
مقاله انگلیسی |
7 |
Past forward: Recommendations from historical ecology for ecosystem management
گذشته رو به جلو: توصیه هایی از اکولوژی تاریخی برای مدیریت اکوسیستم-2020 In the context of accelerating environmental change, there is an urgent need to identify
ecosystem conservation, restoration, and management strategies likely to support biodiverse
and adaptive ecosystems into the future. The field of historical ecology has
generated a substantial body of recommendations for ecosystem management, yet these
insights have never been synthesized. We reviewed >200 historical ecology studies and
analyzed recommendations for ecosystem management emerging from the field. The
majority of studies (~90%) derived from North American and Europe, with forests being the
focus of nearly half (48%) of all papers. Papers emphasized the need to protect and restore
both habitat remnants and modified ecosystems in management, the value of ecosystems
as cultural landscapes, and the importance of adopting a landscape-scale perspective for
ecosystem management. Nearly one-quarter contained a recommendation that challenged
status quo management, underscoring the value of a historical perspective in setting
management goals, strategies, and targets. Fewer than 12% of papers contained recommendations
that explicitly addressed ongoing or projected climate change, suggesting
opportunities to integrate findings from historical ecology with other perspectives to
create forward-looking management strategies that are rooted in place and past. Keywords: Historical ecology | Ecological restoration | Ecosystem management | Landscape history | Climate change adaptation |
مقاله انگلیسی |