空气负离子(Negative air ion,NAI)是综合反映空气质量的重要指标,对人类的生活环境具有重大意义。该研究选定广东车八岭国家级自然保护区内10个典型观测点,在5月份(夏季)和10月份(秋季)进行NAI观测。结果表明:保护区内NAI浓度较高,均高...空气负离子(Negative air ion,NAI)是综合反映空气质量的重要指标,对人类的生活环境具有重大意义。该研究选定广东车八岭国家级自然保护区内10个典型观测点,在5月份(夏季)和10月份(秋季)进行NAI观测。结果表明:保护区内NAI浓度较高,均高于700个·cm^(-3);各观测点的NAI浓度基本呈现水体>森林>草坪>楼内的规律;秋季10个观测点的NAI浓度从高到低依次为博物馆旁河中央、漂流起点、小瀑布口、小瀑布支柱、针阔混交林、针叶林、博物馆前草坪、单竹坑、吊桥、办公楼内;观测点漂流起点、小瀑布口、小瀑布支柱、博物馆旁河中央的NAI水平与单竹坑、吊桥、博物馆前草坪、办公楼内、针阔混交林、针叶林均有显著差异。夏季各观测点的NAI浓度从高到低依次为小瀑布口、博物馆旁河中央、小瀑布支柱、漂流起点、针阔混交林、针叶林、单竹坑、博物馆前草坪、吊桥、办公楼内,其中观测点漂流起点、小瀑布口、小瀑布支柱、博物馆旁河中央显著高于其它地点,观测点针阔混交林、针叶林显著高于单竹坑、吊桥、博物馆前草坪、办公楼内,观测点办公楼内显著低于其他点。区内NAI浓度受到季节、水体、植被类型等因子的影响。展开更多
The construction of a comprehensive observation platform for natural-resource elements would provide data support for studies of dynamic changes in various natural resources,and could serve the needs of natural-resour...The construction of a comprehensive observation platform for natural-resource elements would provide data support for studies of dynamic changes in various natural resources,and could serve the needs of natural-resource management and the construction of ecological civilization during a period of global change.As the second-largest inland river basin in NW China,the Heihe River Basin(HRB)lies in the central part of the Silk Road Economic Belt,consequently,pilot studies of resource management in the basin are urgently needed.This paper describes the construction of a comprehensive natural-resource elements observation network in the HRB to meet requirements for natural-resource management,based on natural-resource and Earth-system science.Based on current observations and research,thirteen observation stations were established in different river basins through integration with existing stations,reconstruction and upgrading,and new construction.The main types of land-surface resources in the HRB(grassland,forests,rivers,lakes,deserts,wetlands,and farmland)were included in the observation network constructed for the monitoring of natural-resource elements.Long-term,continuous,and stable observation can yield key data concerning coupling processes,trends of change,and rates of change in natural resources.This is of great significance in improving cognitive ability,scientific management,and strategic decision-making regarding natural resources in the HRB,and can provide a reference paradigm for the observation of and research into natural resources in other basins.展开更多
文摘空气负离子(Negative air ion,NAI)是综合反映空气质量的重要指标,对人类的生活环境具有重大意义。该研究选定广东车八岭国家级自然保护区内10个典型观测点,在5月份(夏季)和10月份(秋季)进行NAI观测。结果表明:保护区内NAI浓度较高,均高于700个·cm^(-3);各观测点的NAI浓度基本呈现水体>森林>草坪>楼内的规律;秋季10个观测点的NAI浓度从高到低依次为博物馆旁河中央、漂流起点、小瀑布口、小瀑布支柱、针阔混交林、针叶林、博物馆前草坪、单竹坑、吊桥、办公楼内;观测点漂流起点、小瀑布口、小瀑布支柱、博物馆旁河中央的NAI水平与单竹坑、吊桥、博物馆前草坪、办公楼内、针阔混交林、针叶林均有显著差异。夏季各观测点的NAI浓度从高到低依次为小瀑布口、博物馆旁河中央、小瀑布支柱、漂流起点、针阔混交林、针叶林、单竹坑、博物馆前草坪、吊桥、办公楼内,其中观测点漂流起点、小瀑布口、小瀑布支柱、博物馆旁河中央显著高于其它地点,观测点针阔混交林、针叶林显著高于单竹坑、吊桥、博物馆前草坪、办公楼内,观测点办公楼内显著低于其他点。区内NAI浓度受到季节、水体、植被类型等因子的影响。
基金The National Key Research and Development Program of China(2018YFA0606500)The Special Project for Comprehensive Monitoring of The Natural Resources(Xining Center)(DD20211627)+1 种基金The Comprehensive Observation of Natural-resource Elements in Heihe River Basin(DD20208065)The Investigation of Groundwater Flow Field in Key Areas(Xi’an Center)(DD20211563)。
文摘The construction of a comprehensive observation platform for natural-resource elements would provide data support for studies of dynamic changes in various natural resources,and could serve the needs of natural-resource management and the construction of ecological civilization during a period of global change.As the second-largest inland river basin in NW China,the Heihe River Basin(HRB)lies in the central part of the Silk Road Economic Belt,consequently,pilot studies of resource management in the basin are urgently needed.This paper describes the construction of a comprehensive natural-resource elements observation network in the HRB to meet requirements for natural-resource management,based on natural-resource and Earth-system science.Based on current observations and research,thirteen observation stations were established in different river basins through integration with existing stations,reconstruction and upgrading,and new construction.The main types of land-surface resources in the HRB(grassland,forests,rivers,lakes,deserts,wetlands,and farmland)were included in the observation network constructed for the monitoring of natural-resource elements.Long-term,continuous,and stable observation can yield key data concerning coupling processes,trends of change,and rates of change in natural resources.This is of great significance in improving cognitive ability,scientific management,and strategic decision-making regarding natural resources in the HRB,and can provide a reference paradigm for the observation of and research into natural resources in other basins.