Ecosystem Health and Sustainability最新文献

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Dynamic Analysis of Risk to Water Quality in the Baimei Reservoir Conservation Area, Fujian Province, China 福建白眉水库保护区水质风险动态分析
IF 4.9 2区 环境科学与生态学
Ecosystem Health and Sustainability Pub Date : 2023-01-01 DOI: 10.34133/ehs.0003
Yunzhu Tao, Angshuo Zhan, Zhifang Wang, W. Fan, Yanjuan Yao, Siqi Yang, Tongjian Kang
{"title":"Dynamic Analysis of Risk to Water Quality in the Baimei Reservoir Conservation Area, Fujian Province, China","authors":"Yunzhu Tao, Angshuo Zhan, Zhifang Wang, W. Fan, Yanjuan Yao, Siqi Yang, Tongjian Kang","doi":"10.34133/ehs.0003","DOIUrl":"https://doi.org/10.34133/ehs.0003","url":null,"abstract":"The security of drinking water resources is an important concern for human survival. The extensive use of geographic information system and remote sensing data in risk assessments of water quality from a spatiotemporal perspective can complement water resource management. In this study, we investigated Baimei reservoir conservation area, Fujian Province, China. The quantitatively inversed leaf area index was used to represent the vegetation growth condition in simulations of the hydrological process using soil and water assessment tool. According to the simulation results, the spatial distribution of the risk to water quality was mainly related to the land-use condition, and the temporal distribution of the risk to water quality was mainly related to the precipitation dynamics. Single factor analysis of various scenarios showed that uncontrolled expansion of agricultural land (scenario A) would lead to an overall average increase of 231.9% in the total nitrogen (TN) load in the basin. By contrast, if agricultural lands are all transformed into forests (scenario B), then the overall TN load in the basin would decrease by an average of 20.8%. In practical terms, conversion of sloping agricultural lands to forests (scenario C) could reduce the overall TN load by 17.0%. Thus, moderate conversion of agricultural lands to forests can reduce the pollution load effectively. The simulation results obtained for scenarios with adjustments to the fertilization time and amount showed that applying fertilizer on rainy days would increase the risk to water quality compared with days without rain. The method developed in this study can be applied for dynamic analysis in water quality risk assessments of water conservation areas and can provide a scientific reference for promoting ecological management strategies and sustainable development at the regional scale.","PeriodicalId":54216,"journal":{"name":"Ecosystem Health and Sustainability","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42948839","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}
引用次数: 1
Influence of Vegetation Dynamics on Soil Organic Carbon and Its Fractions in a Coastal Wetland 海岸带湿地植被动态对土壤有机碳及其组分的影响
IF 4.9 2区 环境科学与生态学
Ecosystem Health and Sustainability Pub Date : 2023-01-01 DOI: 10.34133/ehs.0016
Shuying Qiu, Zhenyu Wang, Jiali Xu, Erqian Cui, Liming Yan
{"title":"Influence of Vegetation Dynamics on Soil Organic Carbon and Its Fractions in a Coastal Wetland","authors":"Shuying Qiu, Zhenyu Wang, Jiali Xu, Erqian Cui, Liming Yan","doi":"10.34133/ehs.0016","DOIUrl":"https://doi.org/10.34133/ehs.0016","url":null,"abstract":"\u0000 Coastal wetland ecosystems are highly efficient in sequestering carbon (C) to mitigate climate change. However, it is still unclear how vegetation dynamics affect soil organic carbon (SOC) and its fractions (labile and recalcitrant C (LC and RC)) in coastal wetlands. Here, we quantified the effects of saltmarsh vegetation dynamics on the SOC and its fractions using the invasive\u0000 Spartina alterniflora\u0000 and co-occurring native\u0000 Phragmites australis\u0000 communities as a model. SOC contents in these 2 communities showed similar spatial patterns with an inverted U-shaped curve from tidal mudflats to vegetated marshes. Our results suggested that plant ecophysiological traits play a primary role in regulating the spatial distribution of SOC. In addition, the lower ratio of leaf to shoot in\u0000 P. australis\u0000 community facilitates the accumulation of RC, while the lower soil pH in\u0000 S. alterniflora\u0000 may accelerate the decomposition of RC. The findings indicated that\u0000 S. alterniflora\u0000 could accumulate more C in the soil owing to its greater plant biomass and photosynthesis rate. However, the reduced soil pH by\u0000 S. alterniflora\u0000 invasion might restrain SOC accumulation. Our findings shed light on the impacts of long-term species invasion on SOC and its fractions in coastal wetlands under global changes.\u0000","PeriodicalId":54216,"journal":{"name":"Ecosystem Health and Sustainability","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49110912","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}
引用次数: 0
Elevated Ozone Negatively Affects the Community Characteristics and Productivity of Subtropical Grassland in India 臭氧浓度升高对印度亚热带草地群落特征和生产力有负面影响
IF 4.9 2区 环境科学与生态学
Ecosystem Health and Sustainability Pub Date : 2023-01-01 DOI: 10.34133/ehs.0006
Tsetan Dolker, S. B. Agrawal, M. Agrawal
{"title":"Elevated Ozone Negatively Affects the Community Characteristics and Productivity of Subtropical Grassland in India","authors":"Tsetan Dolker, S. B. Agrawal, M. Agrawal","doi":"10.34133/ehs.0006","DOIUrl":"https://doi.org/10.34133/ehs.0006","url":null,"abstract":"\u0000 Tropospheric ozone (O\u0000 3\u0000 ) is found to be a severe threat to agriculture and natural vegetation. The present study was conducted to investigate the structural and functional changes in an intact seminatural grassland community when exposed to elevated O\u0000 3\u0000 (EO\u0000 3\u0000 ; ambient + 20 parts per billion) compared to ambient O\u0000 3\u0000 (AO\u0000 3\u0000 ) for 3 years using open-top chambers. Parameters such as species richness (SR), evenness (\u0000 E\u0000 ), Shannon index (\u0000 H\u0000 ′), β-diversity (BD), concentration of dominance (Cd), similarity index (SI), biomass in canopy layers, and community productivity were evaluated. Species like\u0000 Cynodon dactylon\u0000 ,\u0000 Dichanthium annulatum\u0000 ,\u0000 Parthenium hysterophorus\u0000 ,\u0000 Digitaria sanguinalis\u0000 ,\u0000 Cyperus killinga\u0000 ,\u0000 Oplismenus burmannii\u0000 , and\u0000 Commelina benghalensis\u0000 showed higher importance value index (IVI), whereas\u0000 Trifolium resupinatum\u0000 ,\u0000 Desmodium triflorum\u0000 ,\u0000 Melilotus officinalis\u0000 ,\u0000 Oxalis corniculata\u0000 ,\u0000 Eleusine indica\u0000 ,\u0000 Cyperus rotundus\u0000 ,\u0000 Malvestrum coromandelianum\u0000 , and\u0000 Lindernia anagallis\u0000 showed lower IVI under EO\u0000 3\u0000 treatment compared to AO\u0000 3\u0000 . EO\u0000 3\u0000 enhanced BD and Cd, whereas SR,\u0000 E\u0000 , and\u0000 H\u0000 ′ in the community reduced. Biomass accumulation reduced maximally in top layer compared to bottom and middle canopy layers in both forbs and grasses fraction under EO\u0000 3\u0000 treatment. Higher reduction in total biomass compared to aboveground biomass indicates less carbon allocation toward root system. The results of the present study clearly indicates that 3 years of exposure at EO\u0000 3\u0000 level caused deleterious impact on grassland community by increasing O\u0000 3\u0000 -tolerant and decreasing sensitive species, thus resulting in a shift in species composition and community productivity.\u0000","PeriodicalId":54216,"journal":{"name":"Ecosystem Health and Sustainability","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46243251","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}
引用次数: 1
Terrestrial net ecosystem productivity in China during 1900–2100 1900-2100年中国陆地生态系统净生产力
2区 环境科学与生态学
Ecosystem Health and Sustainability Pub Date : 2023-01-01 DOI: 10.34133/ehs.0139
Jianzhao Liu, Fenghui Yuan, Ning Chen, Nannan Wang, Yunjiang Zuo, Kexin Li, Ziyu Guo, Xinhao Zhu, Ying Sun, Lihua Zhang, Yuedong Guo, Xiaofeng Xu, Changchun Song
{"title":"Terrestrial net ecosystem productivity in China during 1900–2100","authors":"Jianzhao Liu, Fenghui Yuan, Ning Chen, Nannan Wang, Yunjiang Zuo, Kexin Li, Ziyu Guo, Xinhao Zhu, Ying Sun, Lihua Zhang, Yuedong Guo, Xiaofeng Xu, Changchun Song","doi":"10.34133/ehs.0139","DOIUrl":"https://doi.org/10.34133/ehs.0139","url":null,"abstract":"Terrestrial ecosystems are a critical carbon dioxide (CO 2 ) sink for achieving carbon (C) neutrality before 2060 in China. Here, we used the Coupled Model Intercomparison Project phase 6 (CMIP6) model outputs to quantify the spatiotemporal patterns of net ecosystem productivity (NEP) and its major environmental controls, as well as the dominant C pools for NEP during 1900–2100. We found that (a) according to CMIP6 NEP spatiotemporal characteristics, terrestrial ecosystems in China sequestered 0.310 ± 0.058 Pg C·year –1 during 1980–2014 and will act as a strong C sink [from 0.515 ± 0.075 Pg C·year –1 under Shared Socioeconomic Pathway 126 (SSP126) to 0.631 ± 0.089 Pg C·year –1 under SSP585] in the future (2015–2100). Pronounced turning points were found for the temporal trends of NEP during the historical (1984) and under 4 future emissions scenarios (2057 for SSP126, 2053 for SSP245, 2038 for SSP370, and 2044 for SSP585). (b) The positive effect of temperature on NEP appears to weaken after each turning point of future scenarios. (c) The enlarged vegetation C pool size dominates the growing terrestrial ecosystem C storage. The CMIP6 projection shows that the total C storage in Chinese terrestrial ecosystems increases continuously and peaks in the 2040s to 2050s under each scenario. Future afforestation in the northeast, southeast, and southwestern regions, as well as soil C pool management in the northwest and middle north regions, will greatly contribute to achieving C neutrality in China, particularly under low emission scenario (SSP126).","PeriodicalId":54216,"journal":{"name":"Ecosystem Health and Sustainability","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135845954","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}
引用次数: 0
Adaptability of Common Coastal Wetland Plant Populations to Future Sea Level Rise 常见滨海湿地植物种群对未来海平面上升的适应性
IF 4.9 2区 环境科学与生态学
Ecosystem Health and Sustainability Pub Date : 2023-01-01 DOI: 10.34133/ehs.0005
Bo Pang, T. Xie, B. Cui, Qing Wang, Z. Ning, Zezheng Liu, Cong Chen, Yuming Lu, Xiaohu Zhao
{"title":"Adaptability of Common Coastal Wetland Plant Populations to Future Sea Level Rise","authors":"Bo Pang, T. Xie, B. Cui, Qing Wang, Z. Ning, Zezheng Liu, Cong Chen, Yuming Lu, Xiaohu Zhao","doi":"10.34133/ehs.0005","DOIUrl":"https://doi.org/10.34133/ehs.0005","url":null,"abstract":"An accelerating rate of sea level rise (SLR) is causing huge inundation pressure on coastal wetlands worldwide. Vegetation of coastal wetlands plays a key role in stabilizing the coast and accreting sediment in order to mitigate the negative impact of SLR. The ability to accrete sediment is influenced by individual species traits; however, there are insufficient information and indicators to identify differences in the adaptability of various coastal vegetations to SLR at a regional or global scale. Here, the potential adaptation of 27 plant populations in coastal wetlands subject to SLR was evaluated using a compiled global dataset and a marsh equilibrium model. Sediment accretion efficiency differed among plant populations, but most coastal marsh populations and a few mangrove populations had relatively high accretion rates; habitats with high accretion rates will have a better potential to deal with the threat of SLR. These results showed that latitude and efficiency shared a nonlinear relationship, and plant stem density and root structure were among the important factors that influenced the efficiency. Fibrous root plant populations had a greater sediment accretion efficiency than tap root plant populations, and perennial populations had a greater sediment accretion efficiency than annual plant populations. These findings can provide key parameters relating to the sediment accretion efficiency of hydrological and geomorphic models on a global scale. This study offers some novel insights into the dynamic changes in coastal wetlands following SLR that will be particularly useful in devising appropriate strategies for the protection and management of coastal wetlands.","PeriodicalId":54216,"journal":{"name":"Ecosystem Health and Sustainability","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47792863","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}
引用次数: 1
From Geospatial to Temporal Separation: A Review on Carbon Accounting Endogenizing Fixed Capital 从地理空间到时间分离——固定资本碳核算研究综述
IF 4.9 2区 环境科学与生态学
Ecosystem Health and Sustainability Pub Date : 2023-01-01 DOI: 10.34133/ehs.0002
Dongxiao Xu, Yan Zhang, Zhifeng Yang
{"title":"From Geospatial to Temporal Separation: A Review on Carbon Accounting Endogenizing Fixed Capital","authors":"Dongxiao Xu, Yan Zhang, Zhifeng Yang","doi":"10.34133/ehs.0002","DOIUrl":"https://doi.org/10.34133/ehs.0002","url":null,"abstract":"A scientific and systematic approach that provides accurate carbon accounting is a fundamental prerequisite for responding to the climate crisis. The carbon accounting system has evolved from production-based accounting measuring territorial emissions to consumption-based accounting, gradually covering spatial and temporal separation. Its scientificity is thus enhanced. The temporal separation (between past production and current consumption) from fixed capital has become of recent interest, but a panoramic overview still rarely exists because of longstanding neglect. Combining quantitative analysis with a literature review, this study systematically analyzed the historical development and current state of carbon accounting, especially on studies endogenizing fixed capital, to locate hotspots and predict future trends. The current studies with fixed capital endogenization mainly use a flow matrix and augmented method to analyze the total and structure and the difference with traditional results, which are still in the initial rise stage; however, the process analysis and influence factor identification are insufficient. Therefore, this study proposes future avenues for analyzing the entire process of spatial and temporal carbon transfer based on a metabolic perspective and considering the initial input factors to identify the key drivers, which will provide new ideas and perspectives for policy formulation.","PeriodicalId":54216,"journal":{"name":"Ecosystem Health and Sustainability","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44668078","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}
引用次数: 1
Uneven Progress Toward Sustainable Development Goals Reveals Urgency and Potential for Green Belt and Road Initiative 可持续发展目标进展不平衡揭示绿色“一带一路”倡议的紧迫性和潜力
IF 4.9 2区 环境科学与生态学
Ecosystem Health and Sustainability Pub Date : 2023-01-01 DOI: 10.34133/ehs.0092
Yali Liu, Yao Ning, Jianqing Du, Yu Chen, Liwen Shan, Yaqian Yang, B. Ji, Yanfen Wang
{"title":"Uneven Progress Toward Sustainable Development Goals Reveals Urgency and Potential for Green Belt and Road Initiative","authors":"Yali Liu, Yao Ning, Jianqing Du, Yu Chen, Liwen Shan, Yaqian Yang, B. Ji, Yanfen Wang","doi":"10.34133/ehs.0092","DOIUrl":"https://doi.org/10.34133/ehs.0092","url":null,"abstract":"The “Green Belt and Road Initiative” (GBRI) is China’s international cooperation strategy aimed at expanding international collaborations between China, Asia, and Europe through regional trade, policy dialogue, and cultural exchange in order to promote the achievement of sustainable development goals (SDGs). Identifying the development characteristics and deficiencies of Belt and Road countries is critical to investment and policymaking decisions. Here, we incorporated progress evenness across SDGs based on biodiversity measurements to establish a comprehensive assessment system and evaluated the sustainable development status and trajectory of Belt and Road countries from 2017 to 2021. Our results suggest that, although most countries have experienced progress toward SDGs, disregarding evenness among goals tended to result in the overestimation of the current achievements and ignore regional gaps. Economically developed member countries in the Organization for Economic Co-operation and Development (OECD) were more successful in achieving SDGs, but they also faced development bottlenecks owing to uneven development among the 17 goals, with particular shortcomings in goals related to climate actions. However, many countries with relatively poor economies, mostly in Central and Southeast Asia, performed well on eco-environment-related SDGs. Therefore, complementary collaboration among countries may provide a green development pathway to rapidly promote the achievement of SDGs in the Belt and Road region, which emphasizes the urgency and potential for the GBRI. In essence, while uneven development is a tremendous challenge for Belt and Road countries, it presents an opportunity to enhance regional cooperation in support of the GBRI.","PeriodicalId":54216,"journal":{"name":"Ecosystem Health and Sustainability","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47452695","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}
引用次数: 0
Development of a Water Quality Management Model for Dry Rivers in Arid Regions: Application on Wadi Rumah, Saudi Arabia 干旱地区干旱河流水质管理模型的开发——在沙特阿拉伯Wadi Rumah的应用
IF 4.9 2区 环境科学与生态学
Ecosystem Health and Sustainability Pub Date : 2023-01-01 DOI: 10.34133/ehs.0001
Mohammed Al-Hetari, Husnain Haider, A. Ghumman, I. Al-Salamah, H. Thabit, M. Shafiquzzaman
{"title":"Development of a Water Quality Management Model for Dry Rivers in Arid Regions: Application on Wadi Rumah, Saudi Arabia","authors":"Mohammed Al-Hetari, Husnain Haider, A. Ghumman, I. Al-Salamah, H. Thabit, M. Shafiquzzaman","doi":"10.34133/ehs.0001","DOIUrl":"https://doi.org/10.34133/ehs.0001","url":null,"abstract":"\u0000 In dry rivers, urban wastewater discharge forms a pond in the dry period, and surface runoff shapes a longer pond in the wet period. A water quality management model developed for dry rivers is applied on Wadi Rumah in Saudi Arabia. The sub-basin was delineated from 30-m × 30-m spatial resolution digital elevation model. Hydrologic loss, runoff rates, and time of concentration were determined using the soil conservation service curve number, soil conservation service unit hydrograph methods, and Kirpich formula. Hydrologic Engineering Center Hydrologic Modeling System estimated the wet weather flows for 10 low-to-medium rainfall events. A steady-state hydrodynamic model including river flows, effluent discharge, and evaporation and infiltration losses estimated the hydraulic retention time for the explicit case of ponding conditions of dry rivers. Mass balance and first-order kinetics modeled the physical (total dissolved solid and total suspended solid), chemical (biochemical oxygen demand, dissolved oxygen, chemical oxygen demand, NH\u0000 3\u0000 , PO\u0000 4\u0000 , and Cl\u0000 2\u0000 ), and microbiological (total coliform and fecal coliform) parameters. The hydrodynamic model and biokinetic rate coefficients were calibrated with satellite images, reported literature, and field measurements. A water quality index compared the aggregated water quality against the standards for 4 intended uses. The study yields “very good” water quality for restricted and unrestricted irrigation for the dry period, “fair” for livestock drinking, and “marginal” for fishery and recreation for the dry period, while water quality remained “marginal” for all the uses in the wet period. Water quality management implies regular water quality monitoring, continuous improvement of treatment facilities, and flood plain management initiatives for the long-term sustainability of dry rivers in arid regions.\u0000","PeriodicalId":54216,"journal":{"name":"Ecosystem Health and Sustainability","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46814153","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}
引用次数: 3
Posted Sentiments toward Experiences in Degraded Forests Are Shaped Jointly by Landscape Structure and Microclimate 景观结构和小气候共同塑造了人们对退化森林体验的情感
IF 4.9 2区 环境科学与生态学
Ecosystem Health and Sustainability Pub Date : 2023-01-01 DOI: 10.34133/ehs.0004
Qian He, Yue Wang, Q. Qiu, Yan Su, Hongxu Wei, Ji-yue Li
{"title":"Posted Sentiments toward Experiences in Degraded Forests Are Shaped Jointly by Landscape Structure and Microclimate","authors":"Qian He, Yue Wang, Q. Qiu, Yan Su, Hongxu Wei, Ji-yue Li","doi":"10.34133/ehs.0004","DOIUrl":"https://doi.org/10.34133/ehs.0004","url":null,"abstract":"Degraded forests still retain a high dose of nature that may evoke positive sentiments of visitors. This function reminds policy makers to reevaluate the development of degraded forests by using their nonmaterial services. Forest visitors have a general habit of taking facial photos and share with internet friends. This results in the formation of a dataset that comprises scores of posted sentiments toward visitors’ experiences in degraded forests. People post facial photos with emotions exposed to a subjective extent that can be impacted by perceived experiences with joint landscape and microclimate, but their combined effects have not been well demonstrated on a large geographical scale. In this study, a total of 30 degraded forests were selected from suburban areas of 22 cities in Southeast China. There were 2,751 facial photos of forest visitors that were collected and screened from a database of social network platform of China, namely, Sina Weibo. Happy and sad expressional scores were rated by the FireFACE software, and their spatiotemporal distributions were mapped. Both horizontal and vertical planes of objective forest landscapes were remotely evaluated by projected area and vegetation height, respectively. Microclimatic conditions were characterized by meteorological records on the same days when photos were posted. Exposed happiness was distributed as a geographical gradient from lower scores in the northeast region of study area to higher scores in the southwest. Wind velocity (WV), tree height, and elevation generated positive contributions to regressed happy score. However, combined low WV and high sunshine duration hour benefitted the regression of higher sad scores. Our results revealed that people would like to pose more smiles in degraded forests with unhindered wind flows under tall and dense canopies located on highlands. Furthermore, policy makers could consider developing degraded forests as a type of infrastructure that can trigger the promotion of users’ mental well-being, instead of focusing only on negative consequences following ecological degradation.","PeriodicalId":54216,"journal":{"name":"Ecosystem Health and Sustainability","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42231088","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}
引用次数: 2
Finite Element-Based Simulation Analysis of Wetland Plant Mechanics 基于有限元的湿地植物力学模拟分析
IF 4.9 2区 环境科学与生态学
Ecosystem Health and Sustainability Pub Date : 2023-01-01 DOI: 10.34133/ehs.0007
Yanqi Wang, Guoxin Yan, Jiakai Liu, Zhenming Zhang
{"title":"Finite Element-Based Simulation Analysis of Wetland Plant Mechanics","authors":"Yanqi Wang, Guoxin Yan, Jiakai Liu, Zhenming Zhang","doi":"10.34133/ehs.0007","DOIUrl":"https://doi.org/10.34133/ehs.0007","url":null,"abstract":"\u0000 Despite tidal action, which is influenced by sea level rise, having a substantial impact on plant communities, salt marsh plant communities in coastal wetlands also act as a coastal zone barrier.\u0000 Phragmites australis\u0000 and\u0000 Spartina alterniflora\u0000 were selected for the experiment in the Yellow River Delta wetland. The mechanical characteristics of the plants in the Yellow River Delta were investigated by field sampling, and the mechanical experimental data were used to simulate plant stresses under natural conditions using the ANSYS model based on finite element theory. The results are as follows: Assuming that the 2 plants have the same stem diameter, the deformation of\u0000 S. alterniflora\u0000 is greater than that of\u0000 P. australis\u0000 under both static tension and pressure conditions, confirming the phenomenon that the\u0000 P. australis\u0000 material has stronger strength resistance properties. When this model was applied to the force analysis in the natural state, it was discovered that the material strength attribute of\u0000 P. australis\u0000 is higher than that of\u0000 S. alterniflora\u0000 . From the perspective of morphology and structure, the stout stem of\u0000 S. alterniflora\u0000 can greatly alleviate the stress of itself under external force and greatly reduce the invasion effect of external force because field conditions are limited and do not reflect immediate mechanical feedback. The model simulation provides a way to accurately and efficiently obtain the mechanical action of plant body when discussing the mechanical action similar to wave action on plant stem and to explain some ecological phenomena from the perspective of mechanics.\u0000","PeriodicalId":54216,"journal":{"name":"Ecosystem Health and Sustainability","volume":null,"pages":null},"PeriodicalIF":4.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45913181","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}
引用次数: 0
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