Plant life form diversity and its direct gradient analysis on a larger scale climate change gradient were tested, based on the data from Northeast China Transect platform. The results showed that the species numbers, ...Plant life form diversity and its direct gradient analysis on a larger scale climate change gradient were tested, based on the data from Northeast China Transect platform. The results showed that the species numbers, life form richness and life form diversity were relative higher at the eastern forests and the ecotone between typical vegetation, while those on the meadow grasslands and typical steppes were lower. Although plant life forms can reflect the climate variations, life form diversity is not consistent with the major global gradient along the NECT.展开更多
The purpose of this study is to reach a better understanding of how minor psychological problems (MPP) are perceived in China by well-educated Chinese. An exploratory qualitative design is used. The results are based ...The purpose of this study is to reach a better understanding of how minor psychological problems (MPP) are perceived in China by well-educated Chinese. An exploratory qualitative design is used. The results are based on interviews with professionals and students practicing Chinese medicine (TCM) and lay people from three urban sites. Minor psychological problems have traditionally not been labelled as disorders or illnesses but challenges in daily living or as “heart problems” and seemed to have less serious consequences than we are accustomed to think from a modern western outlook. “Problems of life” rather than sickness was the category that best summarized perceptions of such problems among the Chinese. It points to a salutogenetic perspective reflecting perception of mental health and MPP as processes of adaption and interpretation of meaning rather than medical conditions or sickness. Due to the influence from the West these problems are, however, more often comprehended as a health problems or even sickness, and not solely natural problems of life.展开更多
This paper aims to estimate the effects of changing life style and consumption demands driven by income growth and urbanization on increase of energy requirements in China, and es-timate the impacts of improvement in ...This paper aims to estimate the effects of changing life style and consumption demands driven by income growth and urbanization on increase of energy requirements in China, and es-timate the impacts of improvement in household consumption on mitigating energy requirements towards 2020, based on input-out-put analysis and scenarios simulation approach. The result shows that energy requirement per capita has increased by 159% for urban residents and 147% for rural residents from 1995 to 2004. Growth in household consumption driven by income growth and urbanization may induce a successive increase in energy require-ments in future. Per capita energy requirements of urban residents will increase by 240% during 2002-2015 and 330% during 2002-2020. Urbanization might lead to 0.75 billion ton of increment of energy requirements in 2020. About 45%-48% of total energy requirements in China might be a consequence of residents' life styles and the economic activities to support consumption demands in 2020. Under low-carbon life style scenario, per capita energy requirements of urban residents may decline to 97% in 2015 and 92% in 2020 in contrast with baseline scenario. That implies that China needs to pay a great attention to developing green low-carbon life style in order to realize mitigation target towards 2020.展开更多
Climate change is a challenge faced by the whole humanity.As the world's largest developing country, China attaches great importance to climate change and has taken effective measures to address climate change iss...Climate change is a challenge faced by the whole humanity.As the world's largest developing country, China attaches great importance to climate change and has taken effective measures to address climate change issues despite its tremendous task to develop economy, eliminate poverty and improve people's livelihood.展开更多
Aims To explore the pattern of the leaf functional traits of shrub species along a latitudinal gradient in eastern China and determine the driv-ing factors of leaf trait variation at a large scale.Methods We investiga...Aims To explore the pattern of the leaf functional traits of shrub species along a latitudinal gradient in eastern China and determine the driv-ing factors of leaf trait variation at a large scale.Methods We investigated the leaf thickness(LT),leaf area(LA),specific leaf area(SLA)and leaf dry mass content(LDMC)of 185 shrub species from 13 sites across eastern China.The trends of these four-leaf traits were ana-lyzed with respect to latitude,and the differences between different life forms(e.g.,evergreen and deciduous)and habitats(e.g.,understory and typical)were compared.We quantified the effects of the plant life forms and environmental factors on the leaf traits via mixed-model analyses.Important Findings The LT and LA decreased,whilst and the LDMC increased,as the latitude increased,and significant differences in these traits were observed between the different plant life forms.The LT and LA were smaller,whereas the SLA and LDMC were larger in decidu-ous shrubs than in evergreen shrubs.Among the different habitats,the LA and SLA were larger,while the LDMC was smaller in under-story shrubs than in typical shrub species.These results indicate that typical shrub species are better adapted to drier environments,as indicated by a reduced LT and increased LDMC.Furthermore,general linear models showed that variations in the four-leaf traits with respect to latitude were mainly caused by a shift in plant life forms.展开更多
According to the classification system of life\|form provided by Raunkiaer,the life\|forms of 290 vascular plants of 10 Quercus mongolica communities in north\|east China were analyzed.The results showed that the hemi...According to the classification system of life\|form provided by Raunkiaer,the life\|forms of 290 vascular plants of 10 Quercus mongolica communities in north\|east China were analyzed.The results showed that the hemicryptophytes were the dominant life\|forms,accounted for 32.4% of all the forest vascular plants,followed by geocryptophytes,accounted for 23.1%,mesophanerophytes and nanophanerophytes were about 14.6% and 13.9% separately.Altitude and latitude could affect the ratio of geocryptophytes.With the increasing of altitude and latitude,the ratio of geocryptophytes had a trend to develop.The regression analysis among geocryptophytes,hemicryptophytes,altitude and latitude were done.The water content in soil could affect the ratio of therophytes.The ratio of mesophanerophytes,nanophanerophytes,hemicryptophytes and chamaephytes didn’t change significantly with the increasing of altitude and latitude.展开更多
文摘Plant life form diversity and its direct gradient analysis on a larger scale climate change gradient were tested, based on the data from Northeast China Transect platform. The results showed that the species numbers, life form richness and life form diversity were relative higher at the eastern forests and the ecotone between typical vegetation, while those on the meadow grasslands and typical steppes were lower. Although plant life forms can reflect the climate variations, life form diversity is not consistent with the major global gradient along the NECT.
文摘The purpose of this study is to reach a better understanding of how minor psychological problems (MPP) are perceived in China by well-educated Chinese. An exploratory qualitative design is used. The results are based on interviews with professionals and students practicing Chinese medicine (TCM) and lay people from three urban sites. Minor psychological problems have traditionally not been labelled as disorders or illnesses but challenges in daily living or as “heart problems” and seemed to have less serious consequences than we are accustomed to think from a modern western outlook. “Problems of life” rather than sickness was the category that best summarized perceptions of such problems among the Chinese. It points to a salutogenetic perspective reflecting perception of mental health and MPP as processes of adaption and interpretation of meaning rather than medical conditions or sickness. Due to the influence from the West these problems are, however, more often comprehended as a health problems or even sickness, and not solely natural problems of life.
基金supported by Young Science Foundation of Communications University of China (Grant No. XNL1107)
文摘This paper aims to estimate the effects of changing life style and consumption demands driven by income growth and urbanization on increase of energy requirements in China, and es-timate the impacts of improvement in household consumption on mitigating energy requirements towards 2020, based on input-out-put analysis and scenarios simulation approach. The result shows that energy requirement per capita has increased by 159% for urban residents and 147% for rural residents from 1995 to 2004. Growth in household consumption driven by income growth and urbanization may induce a successive increase in energy require-ments in future. Per capita energy requirements of urban residents will increase by 240% during 2002-2015 and 330% during 2002-2020. Urbanization might lead to 0.75 billion ton of increment of energy requirements in 2020. About 45%-48% of total energy requirements in China might be a consequence of residents' life styles and the economic activities to support consumption demands in 2020. Under low-carbon life style scenario, per capita energy requirements of urban residents may decline to 97% in 2015 and 92% in 2020 in contrast with baseline scenario. That implies that China needs to pay a great attention to developing green low-carbon life style in order to realize mitigation target towards 2020.
文摘Climate change is a challenge faced by the whole humanity.As the world's largest developing country, China attaches great importance to climate change and has taken effective measures to address climate change issues despite its tremendous task to develop economy, eliminate poverty and improve people's livelihood.
基金Grants were received from the National Natural Science Foundation of China(31470498 and 31330012)the Chinese National Basic Research Program(2015CB954201 and 2014CB954303)the Strategic Priority Research Program of the Chinese Academy of Sciences(XDA05050701).
文摘Aims To explore the pattern of the leaf functional traits of shrub species along a latitudinal gradient in eastern China and determine the driv-ing factors of leaf trait variation at a large scale.Methods We investigated the leaf thickness(LT),leaf area(LA),specific leaf area(SLA)and leaf dry mass content(LDMC)of 185 shrub species from 13 sites across eastern China.The trends of these four-leaf traits were ana-lyzed with respect to latitude,and the differences between different life forms(e.g.,evergreen and deciduous)and habitats(e.g.,understory and typical)were compared.We quantified the effects of the plant life forms and environmental factors on the leaf traits via mixed-model analyses.Important Findings The LT and LA decreased,whilst and the LDMC increased,as the latitude increased,and significant differences in these traits were observed between the different plant life forms.The LT and LA were smaller,whereas the SLA and LDMC were larger in decidu-ous shrubs than in evergreen shrubs.Among the different habitats,the LA and SLA were larger,while the LDMC was smaller in under-story shrubs than in typical shrub species.These results indicate that typical shrub species are better adapted to drier environments,as indicated by a reduced LT and increased LDMC.Furthermore,general linear models showed that variations in the four-leaf traits with respect to latitude were mainly caused by a shift in plant life forms.
文摘According to the classification system of life\|form provided by Raunkiaer,the life\|forms of 290 vascular plants of 10 Quercus mongolica communities in north\|east China were analyzed.The results showed that the hemicryptophytes were the dominant life\|forms,accounted for 32.4% of all the forest vascular plants,followed by geocryptophytes,accounted for 23.1%,mesophanerophytes and nanophanerophytes were about 14.6% and 13.9% separately.Altitude and latitude could affect the ratio of geocryptophytes.With the increasing of altitude and latitude,the ratio of geocryptophytes had a trend to develop.The regression analysis among geocryptophytes,hemicryptophytes,altitude and latitude were done.The water content in soil could affect the ratio of therophytes.The ratio of mesophanerophytes,nanophanerophytes,hemicryptophytes and chamaephytes didn’t change significantly with the increasing of altitude and latitude.
