Rice terraces are a time-honored agricultural feature that overcomes rough terrain and hostile growing conditions. In addition to playing an essential role in agricultural production and land conservation, rice terraces have been recognized as living cultural landscapes, important agricultural heritage, and popular agritourism destinations for their aesthetic, sociocultural, and environmental values. However, there is a lack of understanding of this emerging niche market, especially from outsider perspectives. To fill the gap, this study analyzes Google Maps reviews of seventy representative rice terraces in Japan based on a mixed-method content analysis, aiming to identify visitors’ overall experiences, seasonal perceptions, and the causes of negative experiences. The results indicate that the overall experience of rice terraces in Japan includes seven themes: agricultural landscapes, times and seasons, visual perception, accessibility and infrastructure, sense of place, Genfukei of Japan, and food. Visitors’ perceptions toward the four seasons of the rice terraces have distinctive characteristics and result in different satisfaction levels. The main reasons for negative experiences are farmland abandonment, lack of character, poor accessibility, and bad timing. Leveraging the power of netnography, the study sheds light on the sustainable development of agricultural heritage tourism through the introduction of rice terrace conservation initiatives in Japan and the exploration of rice terrace experience.
{"title":"Rice Terrace Experience in Japan: An Ode to the Beauty of Seasonality and Nostalgia","authors":"Qian Wang, Xiaoqi Yang, Xinyu Liu, Katsunori Furuya","doi":"10.3390/land13010064","DOIUrl":"https://doi.org/10.3390/land13010064","url":null,"abstract":"Rice terraces are a time-honored agricultural feature that overcomes rough terrain and hostile growing conditions. In addition to playing an essential role in agricultural production and land conservation, rice terraces have been recognized as living cultural landscapes, important agricultural heritage, and popular agritourism destinations for their aesthetic, sociocultural, and environmental values. However, there is a lack of understanding of this emerging niche market, especially from outsider perspectives. To fill the gap, this study analyzes Google Maps reviews of seventy representative rice terraces in Japan based on a mixed-method content analysis, aiming to identify visitors’ overall experiences, seasonal perceptions, and the causes of negative experiences. The results indicate that the overall experience of rice terraces in Japan includes seven themes: agricultural landscapes, times and seasons, visual perception, accessibility and infrastructure, sense of place, Genfukei of Japan, and food. Visitors’ perceptions toward the four seasons of the rice terraces have distinctive characteristics and result in different satisfaction levels. The main reasons for negative experiences are farmland abandonment, lack of character, poor accessibility, and bad timing. Leveraging the power of netnography, the study sheds light on the sustainable development of agricultural heritage tourism through the introduction of rice terrace conservation initiatives in Japan and the exploration of rice terrace experience.","PeriodicalId":37702,"journal":{"name":"Land","volume":"55 12","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139381766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The coastal wetlands are among the most vulnerable and threatened environments of the Mediterranean area. Targeted actions for their conservation require in-depth knowledge of current and past natural vegetation. In this paper, we surveyed the vegetation composition and the spatio-temporal changes of a coastal wetland area in southeastern Sicily (“Saline di Priolo” SAC). Based on 128 phytosociological surveys and several plant collections, a total of 304 taxa, 28 plant communities, and 16 habitats have been identified. Furthermore, three new plant associations were described, including two in wetland and one in rocky coast environments. For the classification of plant communities and habitats, a hierarchical clustering was performed by using Euclidean coefficient and beta-flexible algorithm. The life form spectrum of the current flora highlights the dominance of therophytes and hemicryptophytes. The Mediterranean species are largely prevailing with 123 taxa. The cartographic analysis performed with ArcGis 10.3 shows a radical reduction in the wetland habitats in the last 70 years, and a strong alteration of the ecological succession of the psammophilous-hygrophilous vegetation. Moreover, landscape configuration of the coastal vegetation and habitat types was well highlighted by a set of specific landscape metrics. In particular, our outcomes identify three habitats (2110, 2210, and 5220* EU code) with bad conservation status, among which we identified one of priority conservation (Zyziphus arborescent matorral) that requires urgent restoration measures.
{"title":"The Role of Vegetation Monitoring in the Conservation of Coastal Habitats N2000: A Case Study of a Wetland Area in Southeast Sicily (Italy)","authors":"S. Sciandrello, Veronica Ranno, V. Tomaselli","doi":"10.3390/land13010062","DOIUrl":"https://doi.org/10.3390/land13010062","url":null,"abstract":"The coastal wetlands are among the most vulnerable and threatened environments of the Mediterranean area. Targeted actions for their conservation require in-depth knowledge of current and past natural vegetation. In this paper, we surveyed the vegetation composition and the spatio-temporal changes of a coastal wetland area in southeastern Sicily (“Saline di Priolo” SAC). Based on 128 phytosociological surveys and several plant collections, a total of 304 taxa, 28 plant communities, and 16 habitats have been identified. Furthermore, three new plant associations were described, including two in wetland and one in rocky coast environments. For the classification of plant communities and habitats, a hierarchical clustering was performed by using Euclidean coefficient and beta-flexible algorithm. The life form spectrum of the current flora highlights the dominance of therophytes and hemicryptophytes. The Mediterranean species are largely prevailing with 123 taxa. The cartographic analysis performed with ArcGis 10.3 shows a radical reduction in the wetland habitats in the last 70 years, and a strong alteration of the ecological succession of the psammophilous-hygrophilous vegetation. Moreover, landscape configuration of the coastal vegetation and habitat types was well highlighted by a set of specific landscape metrics. In particular, our outcomes identify three habitats (2110, 2210, and 5220* EU code) with bad conservation status, among which we identified one of priority conservation (Zyziphus arborescent matorral) that requires urgent restoration measures.","PeriodicalId":37702,"journal":{"name":"Land","volume":"43 5","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139385708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Karapetsas, A. Gobin, G. Bilas, Thomas M. Koutsos, V. Pavlidis, Eleni Katragkou, T. Alexandridis
Land Suitability Analysis (LSA), under the impact of climate change, is a fundamental approach to the design of appropriate land management strategies for sustainable crop production and food security. In this study, the FAO framework was used to assess the impact of climate change on land suitability for maize in Flanders, Belgium. The current LSA revealed the marginal suitability for maize cultivation, characterizing most of the agricultural land in Flanders and identifying precipitation as the most limiting factor for maize suitability. The LSA, under two climate change scenarios, was based on climate projections from several CMIP5 Global Circulation Models, transformed into future land suitability projections and assembled into a multi-model ensemble (MME) of projected suitability changes. The results indicate an average reduction in projected suitability of approximately 7% by 2099 under the high-emission scenario. The potential of the Soil-Improving Cropping System (SICS) to mitigate the impacts of climate change on land suitability was statistically significant under both low- and high-emission scenarios. This research provides valuable insights into the MME modeling of climate change impacts on land suitability and its associated uncertainty, with the application of SICS as a potential long-term mitigation measure to promote sustainable agricultural practices.
{"title":"Analysis of Land Suitability for Maize Production under Climate Change and Its Mitigation Potential through Crop Residue Management","authors":"N. Karapetsas, A. Gobin, G. Bilas, Thomas M. Koutsos, V. Pavlidis, Eleni Katragkou, T. Alexandridis","doi":"10.3390/land13010063","DOIUrl":"https://doi.org/10.3390/land13010063","url":null,"abstract":"Land Suitability Analysis (LSA), under the impact of climate change, is a fundamental approach to the design of appropriate land management strategies for sustainable crop production and food security. In this study, the FAO framework was used to assess the impact of climate change on land suitability for maize in Flanders, Belgium. The current LSA revealed the marginal suitability for maize cultivation, characterizing most of the agricultural land in Flanders and identifying precipitation as the most limiting factor for maize suitability. The LSA, under two climate change scenarios, was based on climate projections from several CMIP5 Global Circulation Models, transformed into future land suitability projections and assembled into a multi-model ensemble (MME) of projected suitability changes. The results indicate an average reduction in projected suitability of approximately 7% by 2099 under the high-emission scenario. The potential of the Soil-Improving Cropping System (SICS) to mitigate the impacts of climate change on land suitability was statistically significant under both low- and high-emission scenarios. This research provides valuable insights into the MME modeling of climate change impacts on land suitability and its associated uncertainty, with the application of SICS as a potential long-term mitigation measure to promote sustainable agricultural practices.","PeriodicalId":37702,"journal":{"name":"Land","volume":"56 11","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139386011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
B. Perosa, Ramon Felipe Bicudo da Silva, Mateus Batistella
Market access has a deep impact on farmers’ decisions, influencing their choice of crops and technology adoption. Crop diversification depends on the availability of markets to trade the agricultural portfolio. This study explored how market access impacted the level of diversification in 5565 Brazilian municipalities from 2013 to 2021. We developed a regression model considering how variables related to market access and commercialization (storage, roads, distribution centers, commercialization credit, among others) affected a local (municipality level) diversification index. After environmental variables were controlled, the results indicated that most of the market access variables have a significant impact on diversification. We also used map analysis to analyze the regional patterns of specialization in Brazilian agriculture, concluding that logistics and commercialization infrastructure have strong influence on the level of diversification in Brazil, a major agricultural powerhouse in the world. The results indicate that market access variables affect diversification and should be considered by policy makers aiming to increase sustainability in agriculture and livestock.
{"title":"Market Access and Agricultural Diversification: An Analysis of Brazilian Municipalities","authors":"B. Perosa, Ramon Felipe Bicudo da Silva, Mateus Batistella","doi":"10.3390/land13010061","DOIUrl":"https://doi.org/10.3390/land13010061","url":null,"abstract":"Market access has a deep impact on farmers’ decisions, influencing their choice of crops and technology adoption. Crop diversification depends on the availability of markets to trade the agricultural portfolio. This study explored how market access impacted the level of diversification in 5565 Brazilian municipalities from 2013 to 2021. We developed a regression model considering how variables related to market access and commercialization (storage, roads, distribution centers, commercialization credit, among others) affected a local (municipality level) diversification index. After environmental variables were controlled, the results indicated that most of the market access variables have a significant impact on diversification. We also used map analysis to analyze the regional patterns of specialization in Brazilian agriculture, concluding that logistics and commercialization infrastructure have strong influence on the level of diversification in Brazil, a major agricultural powerhouse in the world. The results indicate that market access variables affect diversification and should be considered by policy makers aiming to increase sustainability in agriculture and livestock.","PeriodicalId":37702,"journal":{"name":"Land","volume":"64 9","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139385536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Brownfields have been receiving significant attention all over the world because of their potential threats to the environment and public health. However, a funding shortage constitutes the main obstacle to the brownfield remediation (BR). In China, to ease financial dilemmas, the governments seek collaborations with private-sector companies, i.e., the Public Private Partnership (PPP) mode. Despite all the benefits, BR and PPP contain high risks, making stakeholders extremely cautious about investing in such projects. To support the decision-making process of the public and private parties, this paper designs a comprehensive approach to evaluate the risks of BR PPP projects in China. In more detail, several commonly used risk methods, such as TOPSIS, GRE, and FSE, are employed to construct a combined risk evaluation process, which applies multiple combined evaluation techniques to iteratively integrate individual results from those methods until a valid common result is achieved. To show the practical implementation procedure of the proposed combined approach, a hypothetical case study is performed to assess the risks of seven BR PPP projects. The analytical process also verifies that the consistency and reliability of the risk evaluation result can be achieved effectively and efficiently by jointly deploying multiple risk methods through combined techniques. The proposed decision framework facilitates a novel research idea in evaluating complicated risk situations, and can be applied to other similar scenarios where uncertainties and inconsistencies are inevitable.
{"title":"Public Private Partnership to Brownfield Remediation Projects in China: A Combined Risk Evaluation Approach","authors":"Qingye Han, Yan Qin, Heng Zhang, Ginger Y. Ke","doi":"10.3390/land13010056","DOIUrl":"https://doi.org/10.3390/land13010056","url":null,"abstract":"Brownfields have been receiving significant attention all over the world because of their potential threats to the environment and public health. However, a funding shortage constitutes the main obstacle to the brownfield remediation (BR). In China, to ease financial dilemmas, the governments seek collaborations with private-sector companies, i.e., the Public Private Partnership (PPP) mode. Despite all the benefits, BR and PPP contain high risks, making stakeholders extremely cautious about investing in such projects. To support the decision-making process of the public and private parties, this paper designs a comprehensive approach to evaluate the risks of BR PPP projects in China. In more detail, several commonly used risk methods, such as TOPSIS, GRE, and FSE, are employed to construct a combined risk evaluation process, which applies multiple combined evaluation techniques to iteratively integrate individual results from those methods until a valid common result is achieved. To show the practical implementation procedure of the proposed combined approach, a hypothetical case study is performed to assess the risks of seven BR PPP projects. The analytical process also verifies that the consistency and reliability of the risk evaluation result can be achieved effectively and efficiently by jointly deploying multiple risk methods through combined techniques. The proposed decision framework facilitates a novel research idea in evaluating complicated risk situations, and can be applied to other similar scenarios where uncertainties and inconsistencies are inevitable.","PeriodicalId":37702,"journal":{"name":"Land","volume":"139 4","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139387428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dehua Li, Linghua Duo, Chenhao Bao, Xiaoping Zhang, Zili Zou
The spatial-temporal distribution pattern of China’s cultivated land has changed dramatically from 1990 to 2020, and the problem of cultivated land fragmentation has become more prominent. However, the existing research lacks a focus on the two specific land use types, paddy fields and dryland. In this study, the spatiotemporal distribution pattern and the fragmentation driving mechanism of paddy field and dryland during the years 1990 to 2020 were identified by using the center of gravity center migration model, standard deviation ellipse, and land-use dynamic model for the urban agglomeration in the middle reaches of the Yangtze River as an example. The results show that there are significant differences in the spatiotemporal distribution characteristics of paddy field and dryland in the MRYRUA. Among the provinces and cities, Hubei province and its Xiangyang city showed the most obvious trend of change. The loss and gain of paddy fields and dryland is related to economic and policy contexts in each period. The main driving factor of paddy field and dryland fragmentation is natural condition, whereas a relatively important factor is the per capita disposable income of rural residents. The effects of each factor on paddy field and dryland fragmentation were not independent; any two factor interactions had a stronger effect on paddy field and dryland fragmentation than a single factor. In general, this study provides guidance and references for the main grain-producing areas undergoing rapid urbanization relating to cultivated land conservation, food security, and sustainable agricultural utilization.
{"title":"Spatiotemporal Distribution and Fragmentation Driving Mechanism in Paddy Fields and Dryland of Urban Agglomeration in the Middle Reaches of the Yangtze River","authors":"Dehua Li, Linghua Duo, Chenhao Bao, Xiaoping Zhang, Zili Zou","doi":"10.3390/land13010058","DOIUrl":"https://doi.org/10.3390/land13010058","url":null,"abstract":"The spatial-temporal distribution pattern of China’s cultivated land has changed dramatically from 1990 to 2020, and the problem of cultivated land fragmentation has become more prominent. However, the existing research lacks a focus on the two specific land use types, paddy fields and dryland. In this study, the spatiotemporal distribution pattern and the fragmentation driving mechanism of paddy field and dryland during the years 1990 to 2020 were identified by using the center of gravity center migration model, standard deviation ellipse, and land-use dynamic model for the urban agglomeration in the middle reaches of the Yangtze River as an example. The results show that there are significant differences in the spatiotemporal distribution characteristics of paddy field and dryland in the MRYRUA. Among the provinces and cities, Hubei province and its Xiangyang city showed the most obvious trend of change. The loss and gain of paddy fields and dryland is related to economic and policy contexts in each period. The main driving factor of paddy field and dryland fragmentation is natural condition, whereas a relatively important factor is the per capita disposable income of rural residents. The effects of each factor on paddy field and dryland fragmentation were not independent; any two factor interactions had a stronger effect on paddy field and dryland fragmentation than a single factor. In general, this study provides guidance and references for the main grain-producing areas undergoing rapid urbanization relating to cultivated land conservation, food security, and sustainable agricultural utilization.","PeriodicalId":37702,"journal":{"name":"Land","volume":"45 18","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139389064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Under the robust impetus of China’s rural revitalization strategy, agro-tourism integration and tourism-driven poverty reduction have profoundly impacted various aspects of China’s economy, society, and ecology. This has propelled coordinated urban–rural development and the sustainable development of the tourism industry. This study introduces an analytical framework encompassing tourism-driven poverty reduction, agro-tourism integration, and rural revitalization. Through PVAR and threshold models, it empirically examines the interactive effects, dynamic relationships, and threshold effects between agro-tourism integration, tourism-driven poverty reduction, and rural revitalization. The conclusions are as follows: Firstly, the indices of rural revitalization and the level of agro-tourism integration show an increasing trend across Chinese provinces, with varying trends in tourism-driven poverty reduction efficiency. Secondly, there is a significant dynamic relationship among these factors, with the explanatory power of tourism-driven poverty reduction and agro-tourism integration gradually strengthening. Agro-tourism integration is identified as the most effective means of driving rural revitalization, while tourism-driven poverty reduction has a relatively weaker direct impact. Thirdly, tourism-driven poverty reduction exhibits a positive impulse response to agro-tourism integration. The improvement in tourism-driven poverty reduction efficiency propels further development in agro-tourism integration, thereby fostering rural revitalization. The efficiency of tourism-driven poverty reduction presents a single threshold effect in the process of agro-tourism integration promoting rural revitalization. Fourthly, the development of China’s tourism industry has become an indispensable means of promoting rural revitalization and poverty reduction. However, rural revitalization is a comprehensive project influenced by various factors, requiring improvements and development across multiple aspects.
{"title":"Exploring the Rural Revitalization Effect under the Interaction of Agro-Tourism Integration and Tourism-Driven Poverty Reduction: Empirical Evidence for China","authors":"Debin Ma, Dongqi Sun, Ziyi Wang","doi":"10.3390/land13010060","DOIUrl":"https://doi.org/10.3390/land13010060","url":null,"abstract":"Under the robust impetus of China’s rural revitalization strategy, agro-tourism integration and tourism-driven poverty reduction have profoundly impacted various aspects of China’s economy, society, and ecology. This has propelled coordinated urban–rural development and the sustainable development of the tourism industry. This study introduces an analytical framework encompassing tourism-driven poverty reduction, agro-tourism integration, and rural revitalization. Through PVAR and threshold models, it empirically examines the interactive effects, dynamic relationships, and threshold effects between agro-tourism integration, tourism-driven poverty reduction, and rural revitalization. The conclusions are as follows: Firstly, the indices of rural revitalization and the level of agro-tourism integration show an increasing trend across Chinese provinces, with varying trends in tourism-driven poverty reduction efficiency. Secondly, there is a significant dynamic relationship among these factors, with the explanatory power of tourism-driven poverty reduction and agro-tourism integration gradually strengthening. Agro-tourism integration is identified as the most effective means of driving rural revitalization, while tourism-driven poverty reduction has a relatively weaker direct impact. Thirdly, tourism-driven poverty reduction exhibits a positive impulse response to agro-tourism integration. The improvement in tourism-driven poverty reduction efficiency propels further development in agro-tourism integration, thereby fostering rural revitalization. The efficiency of tourism-driven poverty reduction presents a single threshold effect in the process of agro-tourism integration promoting rural revitalization. Fourthly, the development of China’s tourism industry has become an indispensable means of promoting rural revitalization and poverty reduction. However, rural revitalization is a comprehensive project influenced by various factors, requiring improvements and development across multiple aspects.","PeriodicalId":37702,"journal":{"name":"Land","volume":"127 4","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139387626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Greening the unused or inefficient land surface is of vital importance to increase the carbon pool in environmentally fragile but depopulated rural areas. A proactive land-use strategy, rural residential land decrement (RRLD), is triggered by rural land abandonment and can contribute to greening the land surface. A RRLD can be designed and implemented according to the specific regulations and rules and linked to regional environmental change. However, the carbon consequences of implementing multi-scenario RRLDs remain unknown. Thus, this study exemplifies a rural county of China, proposes a framework that illustrates how spatial zoning, decision model, and prediction techniques jointly determine the RRLD, and accounts for the associated carbon emissions under three scenarios. The results demonstrate that half of the 2012.23 hectares of RRLs were recommended for conversion to farming or gardening use. Under the scenarios of agricultural priority, compact ecological priority, and complete ecological priority, the change of carbon emission capacity in one township could be up to 77.41 tCO2 yr−1, −172.32 tCO2 yr−1, and −209.07 tCO2 yr−1. The total change of Fang’s carbon budget ranged from −1179.91 tCO2 yr−1 (sequestration) to 461.53 tCO2 yr−1 (emission). The findings provide a practical paradigm for utilizing land-use strategies to improve the carbon-related environment.
在环境脆弱但人口减少的农村地区，绿化未利用或低效的地表对于增加碳库至关重要。农村住宅用地减少（RRLD）是一项积极的土地利用战略，由农村土地撂荒引发，有助于绿化地表。农村住宅用地减少可以根据具体的规章制度进行设计和实施，并与区域环境变化挂钩。然而，实施多情景 RRLD 的碳排放后果仍是未知数。因此，本研究以中国的一个农村县为例，提出了一个框架，说明空间分区、决策模型和预测技术如何共同决定 RRLD，并核算了三种情景下的相关碳排放。结果表明，在 2012.23 公顷的 RRL 中，有一半被建议转为农业或园艺用途。在农业优先、紧凑生态优先和完全生态优先三种情景下，一个乡镇的碳排放能力变化分别为 77.41 吨 CO2 yr-1、-172.32 吨 CO2 yr-1、-209.07 吨 CO2 yr-1。方氏碳预算的总变化范围为-1179.91 吨 CO2 yr-1（封存）至 461.53 吨 CO2 yr-1（排放）。研究结果为利用土地利用战略改善碳相关环境提供了一个实用范例。
{"title":"Scenario Analysis of Carbon Emission Changes Resulting from a Rural Residential Land Decrement Strategy: A Case Study in China","authors":"Feng Xu, Guangqing Chi, Huan Wang","doi":"10.3390/land13010051","DOIUrl":"https://doi.org/10.3390/land13010051","url":null,"abstract":"Greening the unused or inefficient land surface is of vital importance to increase the carbon pool in environmentally fragile but depopulated rural areas. A proactive land-use strategy, rural residential land decrement (RRLD), is triggered by rural land abandonment and can contribute to greening the land surface. A RRLD can be designed and implemented according to the specific regulations and rules and linked to regional environmental change. However, the carbon consequences of implementing multi-scenario RRLDs remain unknown. Thus, this study exemplifies a rural county of China, proposes a framework that illustrates how spatial zoning, decision model, and prediction techniques jointly determine the RRLD, and accounts for the associated carbon emissions under three scenarios. The results demonstrate that half of the 2012.23 hectares of RRLs were recommended for conversion to farming or gardening use. Under the scenarios of agricultural priority, compact ecological priority, and complete ecological priority, the change of carbon emission capacity in one township could be up to 77.41 tCO2 yr−1, −172.32 tCO2 yr−1, and −209.07 tCO2 yr−1. The total change of Fang’s carbon budget ranged from −1179.91 tCO2 yr−1 (sequestration) to 461.53 tCO2 yr−1 (emission). The findings provide a practical paradigm for utilizing land-use strategies to improve the carbon-related environment.","PeriodicalId":37702,"journal":{"name":"Land","volume":"54 2","pages":""},"PeriodicalIF":3.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139126949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Environmental justice research largely focuses on the allocation of public resources in terms of quantified distribution and accessibility. This study suggests that the quality of landscape equity, an important urban resource, should be evaluated as it typically appears as a combination of elements. This brings another perspective to the attention of landscape equity in addition to the provision equity: the equity in the quality and level of provision. From this perspective, this study explores the equitable role of streetscape qualities in promoting human physical, mental, and social health. Using street view images, questionnaires, artificial intelligence-based image analysis, geographic information system-based cluster analysis, and correlational analysis, the spatial distribution of health promotion streetscapes and health-influential streetscape elements were presented and compared within the scope of the Shanghai Outer Ring Road. The results disclosed an uneven distribution of streetscapes that can promote human health within research sites. Streets with poor health ratings are concentrated in the Huangpu, Hongkou, and Yangpu districts, primarily in the western part of Shanghai around Shanghai Railway Station, People’s Square, and Yuyuan Garden, where the old city centre is located. Compared with the distribution of health-influential elements, less healthy streets are more likely to be accompanied by low visibility of ‘vegetation’ and a high proportion of ‘buildings’. Streetscape design implications were then discussed in terms of providing people with equal health opportunities. Research outcomes inspired an essential quality perspective in health equity research, and it can be especially helpful when the provision and accessibility can hardly be moderated in high-density cities.
{"title":"Evaluating the Equity of Urban Streetscapes in Promoting Human Health—Taking Shanghai Inner City as an Example","authors":"Y. Shao, Yuting Yin, Dongbo Ma","doi":"10.3390/land13010048","DOIUrl":"https://doi.org/10.3390/land13010048","url":null,"abstract":"Environmental justice research largely focuses on the allocation of public resources in terms of quantified distribution and accessibility. This study suggests that the quality of landscape equity, an important urban resource, should be evaluated as it typically appears as a combination of elements. This brings another perspective to the attention of landscape equity in addition to the provision equity: the equity in the quality and level of provision. From this perspective, this study explores the equitable role of streetscape qualities in promoting human physical, mental, and social health. Using street view images, questionnaires, artificial intelligence-based image analysis, geographic information system-based cluster analysis, and correlational analysis, the spatial distribution of health promotion streetscapes and health-influential streetscape elements were presented and compared within the scope of the Shanghai Outer Ring Road. The results disclosed an uneven distribution of streetscapes that can promote human health within research sites. Streets with poor health ratings are concentrated in the Huangpu, Hongkou, and Yangpu districts, primarily in the western part of Shanghai around Shanghai Railway Station, People’s Square, and Yuyuan Garden, where the old city centre is located. Compared with the distribution of health-influential elements, less healthy streets are more likely to be accompanied by low visibility of ‘vegetation’ and a high proportion of ‘buildings’. Streetscape design implications were then discussed in terms of providing people with equal health opportunities. Research outcomes inspired an essential quality perspective in health equity research, and it can be especially helpful when the provision and accessibility can hardly be moderated in high-density cities.","PeriodicalId":37702,"journal":{"name":"Land","volume":"67 17","pages":""},"PeriodicalIF":3.9,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139130833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
I. Bagdasarov, M. Tseits, Iuliia Kryukova, K. Taskina, Anna Bobrik, I. Ilichev, Junxiang Cheng, Ligang Xu, Pavel Krasilnikov
“Blue carbon”, apart from marine humus, includes the carbon (C) stock of coastal ecosystems such as mangroves, saltmarshes, and seagrass meadows, which have been overlooked until recently. Information about the role of coastal wetlands in C sequestration and providing other ecosystem services is still insufficient. In the present study, we assessed the C reserves of soils and vegetation biomass in two complex coastal landscapes (tombolos) located on the coasts of the White and Baltic seas. The soil and plant C stocks were slightly higher at the plot on the Baltic Sea (93.4 ± 46.7 Mg C·ha−1 and 5.22 ± 2.51 Mg C·ha−1, respectively) than at the plot on the White Sea (71.4 ± 38.2 Mg C·ha−1 and 3.95 ± 2.42 Mg C·ha−1, respectively). We attributed the higher values of the C reserved to a warmer climate and less saline water at the plot on the Baltic Sea. Both soil and plant C showed high heterogeneity due to geomorphological complexity and differences in vegetative communities. The Phragmites australis community showed the highest plant biomass and, in some places, high soil C reserves. Allochthonous C contributed to the soil C stock at the site on the White Sea. Though P. australis sequestered more C than other communities, its effect on ecosystem services was mostly negative because the invasion of reeds reduced the biological diversity of the marshes.
{"title":"Carbon Stock in Coastal Ecosystems of Tombolos of the White and Baltic Seas","authors":"I. Bagdasarov, M. Tseits, Iuliia Kryukova, K. Taskina, Anna Bobrik, I. Ilichev, Junxiang Cheng, Ligang Xu, Pavel Krasilnikov","doi":"10.3390/land13010049","DOIUrl":"https://doi.org/10.3390/land13010049","url":null,"abstract":"“Blue carbon”, apart from marine humus, includes the carbon (C) stock of coastal ecosystems such as mangroves, saltmarshes, and seagrass meadows, which have been overlooked until recently. Information about the role of coastal wetlands in C sequestration and providing other ecosystem services is still insufficient. In the present study, we assessed the C reserves of soils and vegetation biomass in two complex coastal landscapes (tombolos) located on the coasts of the White and Baltic seas. The soil and plant C stocks were slightly higher at the plot on the Baltic Sea (93.4 ± 46.7 Mg C·ha−1 and 5.22 ± 2.51 Mg C·ha−1, respectively) than at the plot on the White Sea (71.4 ± 38.2 Mg C·ha−1 and 3.95 ± 2.42 Mg C·ha−1, respectively). We attributed the higher values of the C reserved to a warmer climate and less saline water at the plot on the Baltic Sea. Both soil and plant C showed high heterogeneity due to geomorphological complexity and differences in vegetative communities. The Phragmites australis community showed the highest plant biomass and, in some places, high soil C reserves. Allochthonous C contributed to the soil C stock at the site on the White Sea. Though P. australis sequestered more C than other communities, its effect on ecosystem services was mostly negative because the invasion of reeds reduced the biological diversity of the marshes.","PeriodicalId":37702,"journal":{"name":"Land","volume":"87 7","pages":""},"PeriodicalIF":3.9,"publicationDate":"2023-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139132247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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