{"title":"Managing Human-Wildlife Conflict on the Tibetan Plateau","authors":"Tao Lu","doi":"10.34133/ehs.0023","DOIUrl":"https://doi.org/10.34133/ehs.0023","url":null,"abstract":"","PeriodicalId":54216,"journal":{"name":"Ecosystem Health and Sustainability","volume":" ","pages":""},"PeriodicalIF":4.9,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42448358","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}
{"title":"Assessment of waste management efficiency using subjective and objective indicators in 26 major Chinese cities","authors":"Lishan Xiao","doi":"10.34133/ehs.0024","DOIUrl":"https://doi.org/10.34133/ehs.0024","url":null,"abstract":"","PeriodicalId":54216,"journal":{"name":"Ecosystem Health and Sustainability","volume":" ","pages":""},"PeriodicalIF":4.9,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43951343","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}
{"title":"Recovery of mangrove ecosystem carbon stocks through reforestation at abandoned shrimp pond in Southeast Thailand","authors":"Y. Sakai","doi":"10.34133/ehs.0018","DOIUrl":"https://doi.org/10.34133/ehs.0018","url":null,"abstract":"","PeriodicalId":54216,"journal":{"name":"Ecosystem Health and Sustainability","volume":" ","pages":""},"PeriodicalIF":4.9,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45293919","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}
{"title":"Does the Regional Ecological Security Pattern Benefit Eco-environmental Protection? A Case Study of Yangtze River Delta","authors":"Pingxing Lia","doi":"10.34133/ehs.0017","DOIUrl":"https://doi.org/10.34133/ehs.0017","url":null,"abstract":"","PeriodicalId":54216,"journal":{"name":"Ecosystem Health and Sustainability","volume":" ","pages":""},"PeriodicalIF":4.9,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47897632","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}
{"title":"An evaluation of the priority mitigation technology needs of Belt and Road Initiative developing countries","authors":"Fei Teng","doi":"10.34133/ehs.0026","DOIUrl":"https://doi.org/10.34133/ehs.0026","url":null,"abstract":"","PeriodicalId":54216,"journal":{"name":"Ecosystem Health and Sustainability","volume":" ","pages":""},"PeriodicalIF":4.9,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42184442","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}
Recent research has shown that jellyfish blooms occur more frequently near nuclear power plants (NPPs), and a relationship between thermal discharges from the NPPs and the blooms has been hypothesized. There is, however, no direct evidence that links the thermal discharges with jellyfish blooms. In this study, we conducted 3 cruises (pre-bloom, bloom, and post-bloom) during July to September 2017 in the area surrounding the largest NPP in northern China. The water temperature near the cooling water outfall rose by 2 °C. Although we found no significant impact on phytoplankton abundance or community composition near the outfall, a broader analysis of monitoring data revealed significant correlations between temperature and the abundance of Nemopilema nomurai , cyanobacteria, and haptophytes. Temperature increases may have a stimulatory effect on key stages in the life history of jellyfish, and the abundance of jellyfish prey may be the factor that triggers jellyfish blooms. Blooms of jellyfish were accompanied by a decline of diatom dominance and an increase of the concentrations of small phytoplankton such as cyanobacteria and haptophytes. This study revealed for the first time a significant positive correlation ( R 2 = 0.39, P < 0.001) between jellyfish abundance and concentrations of dissolved organic nutrients. This correlation suggested that the blooms of jellyfish resulted in the release of large amounts of organic nutrients. The results provided a comprehensive perspective and suggested a need for further study of the dynamics of planktonic ecosystems to link thermal discharges and jellyfish blooms.
最近的研究表明，水母华更频繁地发生在核电站(NPPs)附近，并且已经假设了核电站的热排放与水母华之间的关系。然而，没有直接的证据表明热排放与水母繁殖有关。在这项研究中，我们于2017年7月至9月在中国北方最大的核电站周围地区进行了3次巡航(花期前、花期和花期后)。冷却水出水口附近水温上升2℃。虽然我们没有发现对排水口附近浮游植物丰度或群落组成的显著影响，但对监测数据的更广泛分析显示，温度与野线虫、蓝藻和触生菌的丰度之间存在显著相关性。温度升高可能对水母生活史的关键阶段产生刺激作用，水母猎物的丰富可能是触发水母繁殖的因素。水母的大量繁殖伴随着硅藻优势度的下降和蓝藻、共生藻等小型浮游植物浓度的增加。本研究首次揭示了水母丰度与溶解有机营养物浓度呈显著正相关(r2 = 0.39, P < 0.001)。这种相关性表明，水母的大量繁殖导致了大量有机营养物质的释放。研究结果提供了一个全面的视角，并表明需要进一步研究浮游生态系统的动态，以联系热排放和水母华。
{"title":"The Link Between Marine Thermal Discharges and\u0000 Nemopilema Nomurai\u0000 Blooms Around Nuclear Power Plants","authors":"Jiawei Wu, Jie Kong, E. Laws, Xin Liu, Changyun Wang, Jixin Chen, Mianrun Chen, Qingzhen Yao, Yantao Wang, Yunce Zhen, Chaolun Li, Bangqin Huang","doi":"10.34133/ehs.0009","DOIUrl":"https://doi.org/10.34133/ehs.0009","url":null,"abstract":"\u0000 Recent research has shown that jellyfish blooms occur more frequently near nuclear power plants (NPPs), and a relationship between thermal discharges from the NPPs and the blooms has been hypothesized. There is, however, no direct evidence that links the thermal discharges with jellyfish blooms. In this study, we conducted 3 cruises (pre-bloom, bloom, and post-bloom) during July to September 2017 in the area surrounding the largest NPP in northern China. The water temperature near the cooling water outfall rose by 2 °C. Although we found no significant impact on phytoplankton abundance or community composition near the outfall, a broader analysis of monitoring data revealed significant correlations between temperature and the abundance of\u0000 Nemopilema nomurai\u0000 , cyanobacteria, and haptophytes. Temperature increases may have a stimulatory effect on key stages in the life history of jellyfish, and the abundance of jellyfish prey may be the factor that triggers jellyfish blooms. Blooms of jellyfish were accompanied by a decline of diatom dominance and an increase of the concentrations of small phytoplankton such as cyanobacteria and haptophytes. This study revealed for the first time a significant positive correlation (\u0000 R\u0000 2\u0000 = 0.39,\u0000 P <\u0000 0.001) between jellyfish abundance and concentrations of dissolved organic nutrients. This correlation suggested that the blooms of jellyfish resulted in the release of large amounts of organic nutrients. The results provided a comprehensive perspective and suggested a need for further study of the dynamics of planktonic ecosystems to link thermal discharges and jellyfish blooms.\u0000","PeriodicalId":54216,"journal":{"name":"Ecosystem Health and Sustainability","volume":" ","pages":""},"PeriodicalIF":4.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47407191","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}
{"title":"Dynamic changes in habitat quality and the driving mechanism in the Luoxiao Mountains area from 1995 to 2020","authors":"Xiang-jie Niu","doi":"10.34133/ehs.0039","DOIUrl":"https://doi.org/10.34133/ehs.0039","url":null,"abstract":"","PeriodicalId":54216,"journal":{"name":"Ecosystem Health and Sustainability","volume":" ","pages":""},"PeriodicalIF":4.9,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42755527","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}
Yunzhu Tao, Angshuo Zhan, Zhifang Wang, W. Fan, Yanjuan Yao, Siqi Yang, Tongjian Kang
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.
{"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":" ","pages":""},"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}
Tropospheric ozone (O 3 ) 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 3 (EO 3 ; ambient + 20 parts per billion) compared to ambient O 3 (AO 3 ) for 3 years using open-top chambers. Parameters such as species richness (SR), evenness ( E ), Shannon index ( H ′), β-diversity (BD), concentration of dominance (Cd), similarity index (SI), biomass in canopy layers, and community productivity were evaluated. Species like Cynodon dactylon , Dichanthium annulatum , Parthenium hysterophorus , Digitaria sanguinalis , Cyperus killinga , Oplismenus burmannii , and Commelina benghalensis showed higher importance value index (IVI), whereas Trifolium resupinatum , Desmodium triflorum , Melilotus officinalis , Oxalis corniculata , Eleusine indica , Cyperus rotundus , Malvestrum coromandelianum , and Lindernia anagallis showed lower IVI under EO 3 treatment compared to AO 3 . EO 3 enhanced BD and Cd, whereas SR, E , and H ′ 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 3 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 3 level caused deleterious impact on grassland community by increasing O 3 -tolerant and decreasing sensitive species, thus resulting in a shift in species composition and community productivity.
{"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":" ","pages":""},"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}
Shuying Qiu, Zhenyu Wang, Jiali Xu, Erqian Cui, Liming Yan
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 Spartina alterniflora and co-occurring native Phragmites australis 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 P. australis community facilitates the accumulation of RC, while the lower soil pH in S. alterniflora may accelerate the decomposition of RC. The findings indicated that S. alterniflora could accumulate more C in the soil owing to its greater plant biomass and photosynthesis rate. However, the reduced soil pH by S. alterniflora 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.
{"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":" ","pages":""},"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}
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