Place memories(traditions),transmitted through art and the stories of a community,are key elements for the construction of individual and collective identity,connected to specific places.In this regard the authors exa...Place memories(traditions),transmitted through art and the stories of a community,are key elements for the construction of individual and collective identity,connected to specific places.In this regard the authors examined how the representation of traditions affects place identity and in what ways the cultural heritage of the town might influence environmental forms of behaviour such as plans and projects.To this end the authors investigated the small town of Pagani in southern Italy,which has many ancient cultural traditions linked to specific locations and their rituals such as the festival of Our Lady of the Hens.Our contribution favours a qualitative approach in examining the data gathered and a participative methodology.The statistical analysis of the vocabulary distribution within 83 texts concerning town and its traditions,written by local citizens(52%male and 48%female)of different ages(range:18-78)revealed a strong place identity.Narrative interviews(14)with key people were then analysed by means of grounded theory.In the perspective of conservation psychology the authors finally focussed on how feelings of impotence and social distrust influence relations between citizens and their local environment.展开更多
This study aimed at gaining an understanding of the formation of residents' Environmental Conservation Behaviour(ECB) to promote sustainable tourism development in Chinese mountain areas. In particular, a theoreti...This study aimed at gaining an understanding of the formation of residents' Environmental Conservation Behaviour(ECB) to promote sustainable tourism development in Chinese mountain areas. In particular, a theoretical framework was constructed by merging residents' mountain attachment and their environmental values,and awareness of environmental consequences based on the Cognition Behaviour Theory. This research sampled 642 residents with convenience sampling method in Jiuzhaigou and Mount Qingcheng, and structural equation modelling analysis was conducted to identify the relationships among the above variables. Results verified that mountain attachment affected people's awareness of environmental consequences, which then affected their ECB.Environmental values and mountain attachment directly and positively influenced ECB. Moreover,awareness of environmental consequences played the most prominent role in predicting ECB among all the predictors in this study. In all, this study derived several significant implications which can not only contribute to environmental management policies in tourism field but also help to improve the levels of the antecedents of residents' ECB and promote sustainable tourism development in Chinese mountain areas.展开更多
Iron-based nanoparticles(Fe-NPs)have wide environmental applications in various areas due to their excellent physicochemical properties,and these processes also increase their release into the water environment.Howeve...Iron-based nanoparticles(Fe-NPs)have wide environmental applications in various areas due to their excellent physicochemical properties,and these processes also increase their release into the water environment.However,the existing literature on environmental behavior fate(e.g.,sorption and transformation)and potential ecotoxicity of Fe-NPs remains limited,which is vital for understanding the Fe-NPs environmental behavior and application as a multifunctional product.In this review,the green synthesis,characterization,and environmental application of Fe-NPs are summarized.We systematically examined the impacts of Fe-NPs physicochemical properties on its adsorption,transformation(e.g.,aggregation dispersion,dissolution,oxidation),and biodegradation behavior in aqueous ecosystems.Moreover,we highlight the potential ecological toxicity of Fe-NPs to aquatic organisms.Upon exposure in water environments,Fe-NPs have potential ecological toxicity on aquatic organisms(e.g.,microorganisms,plants,zooplankton,and fish).The common mechanisms of Fe-NPs ecotoxicity(e.g.,bioaccumulation,oxidation stress,and DNA damage)at the cellular level are presented and the remaining unclear points on nano-toxic mechanisms(e.g.,metabolic disturbance,genotoxicity)are discussed.Given the unresolved issues,the substantial gaps and the environmental risk assessment of Fe-NPs require further attention in the future.This paper will provide useful information for assessing the fate and potential ecological risks associated with Fe-NPs in aquatic environments.展开更多
The effects of dissolved organic matter(DOM),water soluble organic matter derived from sewage sludge,on the sorption of atrazine(2-chloro-4-ethylamino-6-isopropylamino-1,3,5-trazine)by soils were studied using a batch...The effects of dissolved organic matter(DOM),water soluble organic matter derived from sewage sludge,on the sorption of atrazine(2-chloro-4-ethylamino-6-isopropylamino-1,3,5-trazine)by soils were studied using a batch equilibrium technique.Six paddy soils,chosen so as to have different organic carbon contents,were experimented in this investigation.Atrazine sorption isotherms on soils were described by the linear equation,and the distribution coefficients without DOM(Kd)or with DOM(Kd*)were obtained.Generally,the values of Kd*/Kd initially increased and decreased thereafter with increasing DOM concentrations of 0-60 mg DOC·L-1 in soil-solution system form.Critical concentrations of DOM(DOMnp)were obtained where the value of Kd*was equal to Kd.The presence of DOM with concentrations lower than DOMnp promoted atrazine sorption on soils(Kd*>Kd),whereas the presence of DOM with concentrations higher than DOMnp tended to inhibit atrazine sorption(Kd*<Kd).Interestingly,DOMnp for tested soils was negatively correlated to the soil organic carbon content*and the maximum of Kd*/Kd(i.e.Kmax)correlated positively with the maximum of DOM sorption on soil(Xmax).Further investigations showed that the presence of hydrophobic fraction of DOM evidently promoted the atrazine sorption on soils,whereas the presence of hydrophilic DOM fraction obviously tended to inhibit the atrazine sorption.Interactions of soil surfaces with DOM and its fractions were suggested to be the major processes determining atrazine sorption on soils.The results of this work provide a reference to the agricultural use of organic amendment such as sewage sludge for improving the availability of atrazine in soils.展开更多
文摘Place memories(traditions),transmitted through art and the stories of a community,are key elements for the construction of individual and collective identity,connected to specific places.In this regard the authors examined how the representation of traditions affects place identity and in what ways the cultural heritage of the town might influence environmental forms of behaviour such as plans and projects.To this end the authors investigated the small town of Pagani in southern Italy,which has many ancient cultural traditions linked to specific locations and their rituals such as the festival of Our Lady of the Hens.Our contribution favours a qualitative approach in examining the data gathered and a participative methodology.The statistical analysis of the vocabulary distribution within 83 texts concerning town and its traditions,written by local citizens(52%male and 48%female)of different ages(range:18-78)revealed a strong place identity.Narrative interviews(14)with key people were then analysed by means of grounded theory.In the perspective of conservation psychology the authors finally focussed on how feelings of impotence and social distrust influence relations between citizens and their local environment.
基金supported by the National Natural Science Foundation of China(Grant Nos.41501147,41661034,41671130)The Scientific Platform and Innovation Capability Construction Program of GDAS(Grant No.2016GDASPT-0210)+1 种基金GDAS'Special Project of Science and Technology Development under Grant(Grant No.2017GDAs CX-080)the Guangdong Provincial Natural Science Foundation(Grant No.2017A030310475)
文摘This study aimed at gaining an understanding of the formation of residents' Environmental Conservation Behaviour(ECB) to promote sustainable tourism development in Chinese mountain areas. In particular, a theoretical framework was constructed by merging residents' mountain attachment and their environmental values,and awareness of environmental consequences based on the Cognition Behaviour Theory. This research sampled 642 residents with convenience sampling method in Jiuzhaigou and Mount Qingcheng, and structural equation modelling analysis was conducted to identify the relationships among the above variables. Results verified that mountain attachment affected people's awareness of environmental consequences, which then affected their ECB.Environmental values and mountain attachment directly and positively influenced ECB. Moreover,awareness of environmental consequences played the most prominent role in predicting ECB among all the predictors in this study. In all, this study derived several significant implications which can not only contribute to environmental management policies in tourism field but also help to improve the levels of the antecedents of residents' ECB and promote sustainable tourism development in Chinese mountain areas.
基金Financial supports from National Key Research and Development Program of China(No.2023YFC3709000)National Natural Science Foundation of China(Nos.42207337,52200185,42107306 and 52300191)+2 种基金Natural Science Foundation of Hunan Province(No.2024JJ5013)Natural Science Foundation of Tianjin Province(No.24JCYBJC01980)Shanghai Tongji Gao Tingyao Environmental Science&Technology Development Foundation(STGEF)。
文摘Iron-based nanoparticles(Fe-NPs)have wide environmental applications in various areas due to their excellent physicochemical properties,and these processes also increase their release into the water environment.However,the existing literature on environmental behavior fate(e.g.,sorption and transformation)and potential ecotoxicity of Fe-NPs remains limited,which is vital for understanding the Fe-NPs environmental behavior and application as a multifunctional product.In this review,the green synthesis,characterization,and environmental application of Fe-NPs are summarized.We systematically examined the impacts of Fe-NPs physicochemical properties on its adsorption,transformation(e.g.,aggregation dispersion,dissolution,oxidation),and biodegradation behavior in aqueous ecosystems.Moreover,we highlight the potential ecological toxicity of Fe-NPs to aquatic organisms.Upon exposure in water environments,Fe-NPs have potential ecological toxicity on aquatic organisms(e.g.,microorganisms,plants,zooplankton,and fish).The common mechanisms of Fe-NPs ecotoxicity(e.g.,bioaccumulation,oxidation stress,and DNA damage)at the cellular level are presented and the remaining unclear points on nano-toxic mechanisms(e.g.,metabolic disturbance,genotoxicity)are discussed.Given the unresolved issues,the substantial gaps and the environmental risk assessment of Fe-NPs require further attention in the future.This paper will provide useful information for assessing the fate and potential ecological risks associated with Fe-NPs in aquatic environments.
基金the National Natural Science Foundation of China(Grant Nos.40171051,40425007).
文摘The effects of dissolved organic matter(DOM),water soluble organic matter derived from sewage sludge,on the sorption of atrazine(2-chloro-4-ethylamino-6-isopropylamino-1,3,5-trazine)by soils were studied using a batch equilibrium technique.Six paddy soils,chosen so as to have different organic carbon contents,were experimented in this investigation.Atrazine sorption isotherms on soils were described by the linear equation,and the distribution coefficients without DOM(Kd)or with DOM(Kd*)were obtained.Generally,the values of Kd*/Kd initially increased and decreased thereafter with increasing DOM concentrations of 0-60 mg DOC·L-1 in soil-solution system form.Critical concentrations of DOM(DOMnp)were obtained where the value of Kd*was equal to Kd.The presence of DOM with concentrations lower than DOMnp promoted atrazine sorption on soils(Kd*>Kd),whereas the presence of DOM with concentrations higher than DOMnp tended to inhibit atrazine sorption(Kd*<Kd).Interestingly,DOMnp for tested soils was negatively correlated to the soil organic carbon content*and the maximum of Kd*/Kd(i.e.Kmax)correlated positively with the maximum of DOM sorption on soil(Xmax).Further investigations showed that the presence of hydrophobic fraction of DOM evidently promoted the atrazine sorption on soils,whereas the presence of hydrophilic DOM fraction obviously tended to inhibit the atrazine sorption.Interactions of soil surfaces with DOM and its fractions were suggested to be the major processes determining atrazine sorption on soils.The results of this work provide a reference to the agricultural use of organic amendment such as sewage sludge for improving the availability of atrazine in soils.
