[Objective] The aim was to study on resource utilization of indigenous plants in roads in order to solve resource shortage of indigenous plant in bioengi- neering. [Method] Based on northwestern loess plateau area, we...[Objective] The aim was to study on resource utilization of indigenous plants in roads in order to solve resource shortage of indigenous plant in bioengi- neering. [Method] Based on northwestern loess plateau area, we conducted research on selection of indigenous plants and survey on the species which could live in adverse condition, mainly by surveying, with frequent tests as a supplement, to make a comprehensive observation and evaluation on plant combinations which are to be extensively applied. [Result] The research indicated that in central dividing strips, four arbors, including Platycladus orientalis （Linn.）Franco, Sabina chinensis, Sabinachinen- sis（Linn.）Ant., and Ulmus purnila L., and nine frutices, including Lycium chinense, Tamarix austromongolica, Rosa xanthina Lindl., Forsythia suspense, Atriplex canescens, Amygdalus triloba, Hippophae rharnnoides Linn., Arnorpha fruticosa L., and Syzygium aromaticum could be planted. In addition, Gleditsia sinensis Lain, Robinia pseudoacacia L, Elaeagnus angustifolia L., Rhus typhina, Salix babylonica, Salixmatsudana and Fraxinus chinensis, tall and strong, are suitable to be planted as border trees, presenting a good vision. Frutices, limited by height, are usually with more branches, which will provide a good landscape if grown with tall plants. Prunus dacidiana and Ulmus pumila L., prone to be damaged by insects, should be planted with other species to stop the infestation in space. [Conclusion] The research laid foundation for selection of indigenous plants in roads, providing references for resource shortage of indigenous plant for bioengineedng.展开更多
The Yellow Wallpaper examines the role of women in 19th-century American society, including the relationship between husbands and wives, the economic and social dependence of women on men, and the repression of female...The Yellow Wallpaper examines the role of women in 19th-century American society, including the relationship between husbands and wives, the economic and social dependence of women on men, and the repression of female individuality and sexuality. The Victorian era had a profound impact on social values in the United States, stressing that women were to behave gracefully and remain within the domestic sphere. The novel takes place in a country house located about three miles from the nearest village. The Setting has the appearance of tranquility, but is actually a place of confinement--There are bars on the windows of the nursery, and the bed is secured to the floor The isolated location of the house, its somewhat neglected condition, and her further isolation in the fortress-like nursery, symbolize the narrator＇s mental condition. Several symbols are employed in the story to reveal the oppression of women by men and the struggle against that male dominated society. The yellow wallpaper is symbolic of the Cult of True Womanhood, which binds women to the home and family. Like Charlotte Gilman, women were constricted to the set parameters that men determined. Getting beyond the yellow wallpaper, women defied the corrupted power that men wielded over women, escaped their confinement, and created for themselves a new ideological role, one that included entry into the public sphere展开更多
文摘[Objective] The aim was to study on resource utilization of indigenous plants in roads in order to solve resource shortage of indigenous plant in bioengi- neering. [Method] Based on northwestern loess plateau area, we conducted research on selection of indigenous plants and survey on the species which could live in adverse condition, mainly by surveying, with frequent tests as a supplement, to make a comprehensive observation and evaluation on plant combinations which are to be extensively applied. [Result] The research indicated that in central dividing strips, four arbors, including Platycladus orientalis （Linn.）Franco, Sabina chinensis, Sabinachinen- sis（Linn.）Ant., and Ulmus purnila L., and nine frutices, including Lycium chinense, Tamarix austromongolica, Rosa xanthina Lindl., Forsythia suspense, Atriplex canescens, Amygdalus triloba, Hippophae rharnnoides Linn., Arnorpha fruticosa L., and Syzygium aromaticum could be planted. In addition, Gleditsia sinensis Lain, Robinia pseudoacacia L, Elaeagnus angustifolia L., Rhus typhina, Salix babylonica, Salixmatsudana and Fraxinus chinensis, tall and strong, are suitable to be planted as border trees, presenting a good vision. Frutices, limited by height, are usually with more branches, which will provide a good landscape if grown with tall plants. Prunus dacidiana and Ulmus pumila L., prone to be damaged by insects, should be planted with other species to stop the infestation in space. [Conclusion] The research laid foundation for selection of indigenous plants in roads, providing references for resource shortage of indigenous plant for bioengineedng.
文摘The Yellow Wallpaper examines the role of women in 19th-century American society, including the relationship between husbands and wives, the economic and social dependence of women on men, and the repression of female individuality and sexuality. The Victorian era had a profound impact on social values in the United States, stressing that women were to behave gracefully and remain within the domestic sphere. The novel takes place in a country house located about three miles from the nearest village. The Setting has the appearance of tranquility, but is actually a place of confinement--There are bars on the windows of the nursery, and the bed is secured to the floor The isolated location of the house, its somewhat neglected condition, and her further isolation in the fortress-like nursery, symbolize the narrator＇s mental condition. Several symbols are employed in the story to reveal the oppression of women by men and the struggle against that male dominated society. The yellow wallpaper is symbolic of the Cult of True Womanhood, which binds women to the home and family. Like Charlotte Gilman, women were constricted to the set parameters that men determined. Getting beyond the yellow wallpaper, women defied the corrupted power that men wielded over women, escaped their confinement, and created for themselves a new ideological role, one that included entry into the public sphere
