By using quadrat sampling method, the community structure and diversity of ground cover plants in the flight area in Tianjin Binhai International Airport were investigated from spring to autumn in 2015. The results sh...By using quadrat sampling method, the community structure and diversity of ground cover plants in the flight area in Tianjin Binhai International Airport were investigated from spring to autumn in 2015. The results showed that 58 plant species were recorded at the airport, belonging to 18 families and 48 genera. Dominant plant species showed seasonal characteristics. Specifically, lxeri chinensis （ Thunb. ） Nakai and Lagopsis supina （ Steph. ） Ik. -Gal. ex Knorr. were the dominant species in spring; Lagopsis supina, Cirsium setosum （Willd.） MB, Plantago asiatica L. , Cynanchum chinense R. Br. and Humulus scandens （I_our.） Merr. were the dominant species in summer; Chloris virgata Sw. and Eleusine indica （L.） Gaertn. were the dominant species in autumn. Quantitative characteris- tics of the dominant species, including the density, frequency, coverage and height, varied in different seasons. In different seasons, changes in the diversity of plant communities in three sampling points were analyzed. The results indicated that plant communities in summer exhibited the highest diversity and the most uni- form distribution. This study provided a theoretical basis for avoidance of bird strike in Tianjin Binhai International Airport.展开更多
This study was conducted to explore the effects of medium regulation on insect community. Sludge compost,waste crumb rubber and fly ash were added in soil at the Tianjin Binhai International Airport. By sampling metho...This study was conducted to explore the effects of medium regulation on insect community. Sludge compost,waste crumb rubber and fly ash were added in soil at the Tianjin Binhai International Airport. By sampling method,insect community and diversity were surveyed in Tianjin Binhai International Airport. The results showed that a total of 1 288 insects were collected,belonging to 8 orders,17 families and 21 species,with Orthoptera,Coleoptera and Diptera as the dominant groups. The species and individual numbers of insects showed the same trend with the order of sludge control fly ash crumb rubber. Compared with the control area,the individual number and species of insects in the crumb rubber area decreased by 41. 3% and 38. 9%,respectively. Moreover,the species richness and diversity of insects in the crumb rubber area were the lowest,1. 39 and 0. 46 lower than that of the control area,respectively,indicating that crumb rubber can effectively reduce the number and the diversity of insects at the airport.展开更多
The Fuzhou Changle International Airport, the largest international airport in China, was given approval to open to air traffic on June 23 by the Civil Aviation Administration of China (CAAC).
Shanghai Pudong International Airport(PDIA),with its east side built along the coast with weak geological conditions,is prone to uneven foundation settlement due to the consolidation and compression of soil and erosio...Shanghai Pudong International Airport(PDIA),with its east side built along the coast with weak geological conditions,is prone to uneven foundation settlement due to the consolidation and compression of soil and erosion of coastal tides,affecting the safe operation of the airport.Therefore,it is crucial to conduct dynamic subsidence monitoring within the airport,especially in the runway area.29 scenes of ascending track Sentinel-1A radar images from August 2016 to June 2018 are selected to perform surface deformation inversion based on PS-InSAR and improved SBAS-InSAR for PDIA and its around coastal area.Through cross-validation,the reliability of the time-series InSAR technique for dynamic monitoring of surface deformation of coastal zone infrastructures is confirmed.The results show severely uneven settlement.By combining the monitoring results with the local geological and hydrological dataset,the driving factors of differential deformation of the infrastructures are analyzed,including stratigraphic geological conditions,ground loadings,foundation treatment methods,water erosion,and groundwater level changes.Finally,the time-series deformation characteristics and the causes of PDIA’s runway are emphasized based on the PS deformation results.This case provides a reference for the safety management of critical infrastructure in coastal areas using advanced InSAR technique.展开更多
Beijing Daxing International Airport,a major landmark project in China and a new driver for national development,will represent the direction for the development of civil aviation airports in China.The airport,situate...Beijing Daxing International Airport,a major landmark project in China and a new driver for national development,will represent the direction for the development of civil aviation airports in China.The airport,situated in the junction of Nangezhuang,Daxing District,Beijing City and Gu’an County,Hebei Province,has seen its north terminal area and north terminal built in the first phase,covering a total construction area of about 1.4 million m2.The north terminal area is designed to have an annual throughput of 45 million passengers.展开更多
THE extension of the terminal at the Beijing Capital International Airport, one of the key construction projects of the Ninth National Five Year Plan, was completed successfully in September 1999. The Hshaped new term...THE extension of the terminal at the Beijing Capital International Airport, one of the key construction projects of the Ninth National Five Year Plan, was completed successfully in September 1999. The Hshaped new terminal building covers a total area of 336 thousand square meters -- four times that of the old one. It stands three floors above ground (part of it four floors) and one floor underground. Its opening upgrades peak time展开更多
基金Supported by Civil Aviation ProjectEntrusted Project of Tianjin Binhai International Airport
文摘By using quadrat sampling method, the community structure and diversity of ground cover plants in the flight area in Tianjin Binhai International Airport were investigated from spring to autumn in 2015. The results showed that 58 plant species were recorded at the airport, belonging to 18 families and 48 genera. Dominant plant species showed seasonal characteristics. Specifically, lxeri chinensis （ Thunb. ） Nakai and Lagopsis supina （ Steph. ） Ik. -Gal. ex Knorr. were the dominant species in spring; Lagopsis supina, Cirsium setosum （Willd.） MB, Plantago asiatica L. , Cynanchum chinense R. Br. and Humulus scandens （I_our.） Merr. were the dominant species in summer; Chloris virgata Sw. and Eleusine indica （L.） Gaertn. were the dominant species in autumn. Quantitative characteris- tics of the dominant species, including the density, frequency, coverage and height, varied in different seasons. In different seasons, changes in the diversity of plant communities in three sampling points were analyzed. The results indicated that plant communities in summer exhibited the highest diversity and the most uni- form distribution. This study provided a theoretical basis for avoidance of bird strike in Tianjin Binhai International Airport.
基金Supported by Special Fund of Civil Aviation ProgramProject Entrusted by Tianjin Binhai International Airport
文摘This study was conducted to explore the effects of medium regulation on insect community. Sludge compost,waste crumb rubber and fly ash were added in soil at the Tianjin Binhai International Airport. By sampling method,insect community and diversity were surveyed in Tianjin Binhai International Airport. The results showed that a total of 1 288 insects were collected,belonging to 8 orders,17 families and 21 species,with Orthoptera,Coleoptera and Diptera as the dominant groups. The species and individual numbers of insects showed the same trend with the order of sludge control fly ash crumb rubber. Compared with the control area,the individual number and species of insects in the crumb rubber area decreased by 41. 3% and 38. 9%,respectively. Moreover,the species richness and diversity of insects in the crumb rubber area were the lowest,1. 39 and 0. 46 lower than that of the control area,respectively,indicating that crumb rubber can effectively reduce the number and the diversity of insects at the airport.
文摘The Fuzhou Changle International Airport, the largest international airport in China, was given approval to open to air traffic on June 23 by the Civil Aviation Administration of China (CAAC).
基金supported by the National Natural Science Foundation of China[grant no 41790445]the Key Research and Development Program of Sichuan Province[grant no 2023YFS0439].
文摘Shanghai Pudong International Airport(PDIA),with its east side built along the coast with weak geological conditions,is prone to uneven foundation settlement due to the consolidation and compression of soil and erosion of coastal tides,affecting the safe operation of the airport.Therefore,it is crucial to conduct dynamic subsidence monitoring within the airport,especially in the runway area.29 scenes of ascending track Sentinel-1A radar images from August 2016 to June 2018 are selected to perform surface deformation inversion based on PS-InSAR and improved SBAS-InSAR for PDIA and its around coastal area.Through cross-validation,the reliability of the time-series InSAR technique for dynamic monitoring of surface deformation of coastal zone infrastructures is confirmed.The results show severely uneven settlement.By combining the monitoring results with the local geological and hydrological dataset,the driving factors of differential deformation of the infrastructures are analyzed,including stratigraphic geological conditions,ground loadings,foundation treatment methods,water erosion,and groundwater level changes.Finally,the time-series deformation characteristics and the causes of PDIA’s runway are emphasized based on the PS deformation results.This case provides a reference for the safety management of critical infrastructure in coastal areas using advanced InSAR technique.
文摘Beijing Daxing International Airport,a major landmark project in China and a new driver for national development,will represent the direction for the development of civil aviation airports in China.The airport,situated in the junction of Nangezhuang,Daxing District,Beijing City and Gu’an County,Hebei Province,has seen its north terminal area and north terminal built in the first phase,covering a total construction area of about 1.4 million m2.The north terminal area is designed to have an annual throughput of 45 million passengers.
文摘THE extension of the terminal at the Beijing Capital International Airport, one of the key construction projects of the Ninth National Five Year Plan, was completed successfully in September 1999. The Hshaped new terminal building covers a total area of 336 thousand square meters -- four times that of the old one. It stands three floors above ground (part of it four floors) and one floor underground. Its opening upgrades peak time
