Rosemary(Rosmarius officinalis L.), an endemic plant species in south region of China, is traditionally used as a spice. In this research, the anti-inflammatory activities of essential oil and the antibacterial activi...Rosemary(Rosmarius officinalis L.), an endemic plant species in south region of China, is traditionally used as a spice. In this research, the anti-inflammatory activities of essential oil and the antibacterial activities of ethanol extraction were determined, respectively. Results showed that based on the GC-MS analysis there were 35 kinds of active ingredients in the essential oil in totally, mainly including D-limonene(24.158 ml/L), α-Pinene(23.325 ml/L), Camphor(9.855 ml/L),Camphene(7.076 ml/L), Verbenone(6.685 ml/L), Borneol(5.580 ml/L), etc. The LCUV determination indicated that the main components in the ethanol extractionwere rosmarinic acid(3 910 mg/kg) and carnosic acid(2 970 mg/kg). By mice peritoneal macrophage phagocytosis of chicken erythrocytes experiment, the essential oil of rosemary was shown having a significant role in anti-inflammation. And the ethanol extraction had broad-spectrum antibacterial effects, but had no effect on mold by the agar diffusion method of 8 bacteria. As a result, both rosemary essential oil and ethanol extraction had good potential medicinal values.展开更多
The construction of nature reserves plays an essential role in protecting natural resources and the ecological environment,especially the conservation of rare and endangered species,which also has a vital function in ...The construction of nature reserves plays an essential role in protecting natural resources and the ecological environment,especially the conservation of rare and endangered species,which also has a vital function in maintaining the ecological security of the national territory.China has built up a comprehensive network of nature reserves after waves of development,but there are still many problems with the management of nature reserves,such as the definition of boundaries,zoning theory,zoning methods,and legal protection.The definition of boundaries is a tool for effective management of nature reserves,but achieving scientific and effective boundary definition is a difficult problem for the construction and management of reserves.It is also a problem that must be solved to achieve sustainable development.This paper compared three fundamental theories of the conservation of species in nature reserves,namely island biogeography,metapopulation,and landscape ecology,from connotations,applications and advantages,and disadvantages,and discussed the progress of theoretical research to provide valuable references for the definition and planning of effective boundaries of nature reserves.展开更多
Idesia polycarpa Maxim.var.vestita Diels is an important oil plant with high economic value.In order to improve seed germination and to cultivate high quality seedlings,we set out to identify an optimal medium for its...Idesia polycarpa Maxim.var.vestita Diels is an important oil plant with high economic value.In order to improve seed germination and to cultivate high quality seedlings,we set out to identify an optimal medium for its seedling growth in a plastic cave tray(plug seedling).In this study,four different media including M_(1)(soil),M_(2)(peat∶perlite=2∶1),M_3(peat),and M_4(peat∶perlite∶vermiculite=2∶1∶1)were tested in industrialized plug seedlings.The seedling growth of Idesia polycarpa var.vestita including plant height,crown diameter,leaf number,ground diameter,the relative chlorophyll contents of leaves,etc.was measured.The results indicated that the medium M_(2) was the best for increasing seedling height,crown diameter,leaf counts,ground diameter,and the relative chlorophyll contents of leaves.Therefore,medium M_(2) is recommended in the industrialized nursery process for the seedling growth of Idesia polycarpa var.vestita.展开更多
This paper aims to evaluate the cost of environmental degradation by adopting the conventional environmental economic methodology in China from 2004 to 2017 and summarize the change in both the causes and costs of Ch...This paper aims to evaluate the cost of environmental degradation by adopting the conventional environmental economic methodology in China from 2004 to 2017 and summarize the change in both the causes and costs of China’s environmental degradation.Results from this study revealed the following:i.The environmental degradation cost in China increased from 511 billion yuan to 1,892 billion yuan from 2004 to 2017,and its share in the GDP decreased from 3.05% to 2.23%;ii.The environmental degradation cost growth rate was lower than the GDP growth rate.The environmental degradation cost growth rate decreased sharply,by dropping from 10% in 2014 to 2% in 2017.The environmental benefits of industrial transformation have emerged;iii.The provinces of Shandong,Hebei,Jiangsu,Henan,and Guangdong had the highest environmental degradation costs.The annual average growth rate of the environmental degradation costs in Jiangsu,Guangdong,and Zhejiang were lower than their growth rate of the GDP respectively;iv.Consideration of environmental degradation cost in decision-making could contribute to the high-quality development of China.展开更多
基金Department of Fermentation Research of Institute of Bio-engineering from Henan University of Technology for providing strains and Key Scientific Research Project of Henan province in China (No.102102310027) for financial support
文摘Rosemary(Rosmarius officinalis L.), an endemic plant species in south region of China, is traditionally used as a spice. In this research, the anti-inflammatory activities of essential oil and the antibacterial activities of ethanol extraction were determined, respectively. Results showed that based on the GC-MS analysis there were 35 kinds of active ingredients in the essential oil in totally, mainly including D-limonene(24.158 ml/L), α-Pinene(23.325 ml/L), Camphor(9.855 ml/L),Camphene(7.076 ml/L), Verbenone(6.685 ml/L), Borneol(5.580 ml/L), etc. The LCUV determination indicated that the main components in the ethanol extractionwere rosmarinic acid(3 910 mg/kg) and carnosic acid(2 970 mg/kg). By mice peritoneal macrophage phagocytosis of chicken erythrocytes experiment, the essential oil of rosemary was shown having a significant role in anti-inflammation. And the ethanol extraction had broad-spectrum antibacterial effects, but had no effect on mold by the agar diffusion method of 8 bacteria. As a result, both rosemary essential oil and ethanol extraction had good potential medicinal values.
基金Supported by the Central Universities Basic Research Operations Project(JS2019HGXJ0027).
文摘The construction of nature reserves plays an essential role in protecting natural resources and the ecological environment,especially the conservation of rare and endangered species,which also has a vital function in maintaining the ecological security of the national territory.China has built up a comprehensive network of nature reserves after waves of development,but there are still many problems with the management of nature reserves,such as the definition of boundaries,zoning theory,zoning methods,and legal protection.The definition of boundaries is a tool for effective management of nature reserves,but achieving scientific and effective boundary definition is a difficult problem for the construction and management of reserves.It is also a problem that must be solved to achieve sustainable development.This paper compared three fundamental theories of the conservation of species in nature reserves,namely island biogeography,metapopulation,and landscape ecology,from connotations,applications and advantages,and disadvantages,and discussed the progress of theoretical research to provide valuable references for the definition and planning of effective boundaries of nature reserves.
基金Supported by the grant from forestry science and technology innovation research project of Anhui province,China(AHLYCX-2021-07)。
文摘Idesia polycarpa Maxim.var.vestita Diels is an important oil plant with high economic value.In order to improve seed germination and to cultivate high quality seedlings,we set out to identify an optimal medium for its seedling growth in a plastic cave tray(plug seedling).In this study,four different media including M_(1)(soil),M_(2)(peat∶perlite=2∶1),M_3(peat),and M_4(peat∶perlite∶vermiculite=2∶1∶1)were tested in industrialized plug seedlings.The seedling growth of Idesia polycarpa var.vestita including plant height,crown diameter,leaf number,ground diameter,the relative chlorophyll contents of leaves,etc.was measured.The results indicated that the medium M_(2) was the best for increasing seedling height,crown diameter,leaf counts,ground diameter,and the relative chlorophyll contents of leaves.Therefore,medium M_(2) is recommended in the industrialized nursery process for the seedling growth of Idesia polycarpa var.vestita.
基金Supported by National Key Research and Development Program of China(No.2016YFC0207605)Ministry of Ecology and Environment Financial Program of China(No.2110105).
文摘This paper aims to evaluate the cost of environmental degradation by adopting the conventional environmental economic methodology in China from 2004 to 2017 and summarize the change in both the causes and costs of China’s environmental degradation.Results from this study revealed the following:i.The environmental degradation cost in China increased from 511 billion yuan to 1,892 billion yuan from 2004 to 2017,and its share in the GDP decreased from 3.05% to 2.23%;ii.The environmental degradation cost growth rate was lower than the GDP growth rate.The environmental degradation cost growth rate decreased sharply,by dropping from 10% in 2014 to 2% in 2017.The environmental benefits of industrial transformation have emerged;iii.The provinces of Shandong,Hebei,Jiangsu,Henan,and Guangdong had the highest environmental degradation costs.The annual average growth rate of the environmental degradation costs in Jiangsu,Guangdong,and Zhejiang were lower than their growth rate of the GDP respectively;iv.Consideration of environmental degradation cost in decision-making could contribute to the high-quality development of China.
