Wetlands in the Jianghan Plain are important components of wetland types in lake area in the middle and lower reaches the Changjiang (Yangtze) River and they fulfill many uses and functions related to hydrology, waste...Wetlands in the Jianghan Plain are important components of wetland types in lake area in the middle and lower reaches the Changjiang (Yangtze) River and they fulfill many uses and functions related to hydrology, waste assimilation, ecosystem productivity and biodiversity. Owing to natural factors and human activities, especially excessive reclamation from lakes, the shrinking process of the lakes has been accelerated. Wetland ecosystem has shown the characteristics of vulnerability. According to the analysis of wetland ecological function in the Jianghan Plain, this paper presented an index system related to productivity, stability and environmental capacity. By using the method of Analytic Hierarchy Process, we computed the values of the relative weights of the indexes, and evaluated the vulnerability level of the wetland ecosystem by the method of multi-indexes. The case study showed that the fragile extent of wetland ecosystem in the Jianghan Plain is 5.6. This means that the wetland ecosystem in the Jianghan Plain is laid to the state of middle vulnerability. Therefore, the wetland conservation and eco-rehabilitation in the Jianghan Plain should be paid attention to.展开更多
In order to study the characteristics of crustal deformation around the epicenter before the 2016 M_S6. 4 Menyuan earthquake,the GPS continuous stations of the period from 2010 to 2016 were selected according to the o...In order to study the characteristics of crustal deformation around the epicenter before the 2016 M_S6. 4 Menyuan earthquake,the GPS continuous stations of the period from 2010 to 2016 were selected according to the observation data of the tectonic environment monitoring network in Chinese Mainland. The deformation characteristics of the crust before the earthquake were discussed through inter-station baseline time series analysis and the strain time series analysis in the epicentral region. The results show that a trend turn of the baseline movement state around the epicenter region occurred after 2014,and the movement after 2014 reflects an obvious decreasing trend of compressional deformation.During this period,the stress field energy was in a certain accumulation state. Since the beginning of 2014,the EW-component linear strain and surface strain rate weakened gradually before the earthquake. It shows that there was an obvious deformation deficit at the epicentral area in the past two years,which indicates that the region accumulated a high degree of strain energy before the earthquake. Therefore,there was a significant background change in the area before the earthquake. The results of the study can provide basic research data for understanding the seismogenic process and mechanism of this earthquake.展开更多
Nowadays, the number of products and also of architectural projects, qualified as ＂sustainable＂, is ever more growing. Following this trend, architectural design may exploit the use of （eco） materials and componen...Nowadays, the number of products and also of architectural projects, qualified as ＂sustainable＂, is ever more growing. Following this trend, architectural design may exploit the use of （eco） materials and components to promote a project as sustainable even without considering its impact on the environment; This can be defined as architectural greenwash. This paper considers the case of green envelopes with the aim to evaluate if these can be defined as sustainable design practice. Green envelopes provide environmental advantages together with the suggestion to a green aesthetics par excellence. In fact, the integration of vegetation in urban fabric plays an important role in improving ecological and environmental conditions of （and in） cities, although systems can have a high environmental burden. This paper aims to answer the question： Is greening the building envelope a sustainable design practice？ To do so, the paper provides a literature review which includes the main research developed regarding environmental burden, benefits and LCA （life cycle assessment） calculations of green envelopes.展开更多
Strategic environmental assessment (SEA) in China has developed rapidly since it was introduced into China in the 1990s. Chinese government promulgated the Environmental Impact Assessment Law of China (hereinafter ref...Strategic environmental assessment (SEA) in China has developed rapidly since it was introduced into China in the 1990s. Chinese government promulgated the Environmental Impact Assessment Law of China (hereinafter referred to as the EIA Law) in 2002. In this law, it is stipulated clearly that regional and sector plans should be assessed. Through investigating materials and analyzing literatures, this article analyses the practical and academic study achievements of SEA in China that have been achieved since the EIA Law was implemented, probes into the current situation of the main level of SEA in China-plan EIA, then summarizes the development characteristics, and eventually, puts forward the development trends of SEA in China. The research conclusions can offer the foundations for comprehending systematically the progress of SEA in China.展开更多
Through the attempt to clarify justifiable economic circumstances where a policy of globalization and/or a policy of national isolation is proven valid, the author revealed in this thesis that there are two such econo...Through the attempt to clarify justifiable economic circumstances where a policy of globalization and/or a policy of national isolation is proven valid, the author revealed in this thesis that there are two such economic phases： An economy where the theory of comparative advantage, proposed by David Ricardo, is applicable, and an economy where the theory is not applicable. The author applied his original approach to prove the validity of Ricardo＇s comparative advantage theory, and found that the theory can be justified only when a macro economy is in the primal problem phase, where a policy of globalization is effective. It is a necessary and sufficient condition for the theory to be valid. In other words, Ricardo＇s theory of comparative advantage is not applicable when a macro economy is in the dual problem phase, where a policy of national isolation, instead of that of globalization, is valid. The primal problem phase and the dual problem phase of a macro economy, called in this thesis by the author, are a version of an expression quite common in OR （operations research）.展开更多
Facility management has been widely used in corporations during the last decade and has undergone major changes. Some companies have decided to no longer outsource such services, managing more closely and assertively ...Facility management has been widely used in corporations during the last decade and has undergone major changes. Some companies have decided to no longer outsource such services, managing more closely and assertively with a focus on cost reduction and delivery quality. At this point, there are many difficulties in the implementation of a structured maintenance, which results in generating effort, costs and delay in servicing internal customers. Currently, there are very few specialized courses in facility management in Brazil. The search for skills has become increasingly important taking into account increasingly competitive markets. The main objective of this article is to show the importance and the challenges of a good facility management, the impact on the Core business of the company and the risks of an implementation without well-defined processes.展开更多
In this paper, we conduct research on the ecological tourism planning and the tourism development trend under the background of the sustainable development. Research on ecotourism definition, mostly will study ecologi...In this paper, we conduct research on the ecological tourism planning and the tourism development trend under the background of the sustainable development. Research on ecotourism definition, mostly will study ecological tourism, as a concept, its connotation cannot suitable for our the country＇ s current national conditions, only the environment as the research object of ecological tourism, the environmental resources as the main content of the ecological tourism development, embarks from the tourism motivation, tourism, tourist market, to implement ecological tourism. To change this situation, we propose the novel approach to enhance the traditional ecological tourism planning which will optimize the overall performance.展开更多
文摘Wetlands in the Jianghan Plain are important components of wetland types in lake area in the middle and lower reaches the Changjiang (Yangtze) River and they fulfill many uses and functions related to hydrology, waste assimilation, ecosystem productivity and biodiversity. Owing to natural factors and human activities, especially excessive reclamation from lakes, the shrinking process of the lakes has been accelerated. Wetland ecosystem has shown the characteristics of vulnerability. According to the analysis of wetland ecological function in the Jianghan Plain, this paper presented an index system related to productivity, stability and environmental capacity. By using the method of Analytic Hierarchy Process, we computed the values of the relative weights of the indexes, and evaluated the vulnerability level of the wetland ecosystem by the method of multi-indexes. The case study showed that the fragile extent of wetland ecosystem in the Jianghan Plain is 5.6. This means that the wetland ecosystem in the Jianghan Plain is laid to the state of middle vulnerability. Therefore, the wetland conservation and eco-rehabilitation in the Jianghan Plain should be paid attention to.
基金funded by the Earthquake Science and Technology Development Fund of GEA(Grant No.2016M02,2016Y02)the Earthquake Tracking Task of CEA(2017010221)+1 种基金the Fund of Science for Earthquake Resilience,CEA,(XH16038Y,XH14049)Grant of National Natural Science Foundation of China(51408567,41304048)
文摘In order to study the characteristics of crustal deformation around the epicenter before the 2016 M_S6. 4 Menyuan earthquake,the GPS continuous stations of the period from 2010 to 2016 were selected according to the observation data of the tectonic environment monitoring network in Chinese Mainland. The deformation characteristics of the crust before the earthquake were discussed through inter-station baseline time series analysis and the strain time series analysis in the epicentral region. The results show that a trend turn of the baseline movement state around the epicenter region occurred after 2014,and the movement after 2014 reflects an obvious decreasing trend of compressional deformation.During this period,the stress field energy was in a certain accumulation state. Since the beginning of 2014,the EW-component linear strain and surface strain rate weakened gradually before the earthquake. It shows that there was an obvious deformation deficit at the epicentral area in the past two years,which indicates that the region accumulated a high degree of strain energy before the earthquake. Therefore,there was a significant background change in the area before the earthquake. The results of the study can provide basic research data for understanding the seismogenic process and mechanism of this earthquake.
文摘Nowadays, the number of products and also of architectural projects, qualified as ＂sustainable＂, is ever more growing. Following this trend, architectural design may exploit the use of （eco） materials and components to promote a project as sustainable even without considering its impact on the environment; This can be defined as architectural greenwash. This paper considers the case of green envelopes with the aim to evaluate if these can be defined as sustainable design practice. Green envelopes provide environmental advantages together with the suggestion to a green aesthetics par excellence. In fact, the integration of vegetation in urban fabric plays an important role in improving ecological and environmental conditions of （and in） cities, although systems can have a high environmental burden. This paper aims to answer the question： Is greening the building envelope a sustainable design practice？ To do so, the paper provides a literature review which includes the main research developed regarding environmental burden, benefits and LCA （life cycle assessment） calculations of green envelopes.
基金the support of Youth Foundation of Study on Discipline Development,Harbin University (Grant No.HXKQ200812)
文摘Strategic environmental assessment (SEA) in China has developed rapidly since it was introduced into China in the 1990s. Chinese government promulgated the Environmental Impact Assessment Law of China (hereinafter referred to as the EIA Law) in 2002. In this law, it is stipulated clearly that regional and sector plans should be assessed. Through investigating materials and analyzing literatures, this article analyses the practical and academic study achievements of SEA in China that have been achieved since the EIA Law was implemented, probes into the current situation of the main level of SEA in China-plan EIA, then summarizes the development characteristics, and eventually, puts forward the development trends of SEA in China. The research conclusions can offer the foundations for comprehending systematically the progress of SEA in China.
文摘Through the attempt to clarify justifiable economic circumstances where a policy of globalization and/or a policy of national isolation is proven valid, the author revealed in this thesis that there are two such economic phases： An economy where the theory of comparative advantage, proposed by David Ricardo, is applicable, and an economy where the theory is not applicable. The author applied his original approach to prove the validity of Ricardo＇s comparative advantage theory, and found that the theory can be justified only when a macro economy is in the primal problem phase, where a policy of globalization is effective. It is a necessary and sufficient condition for the theory to be valid. In other words, Ricardo＇s theory of comparative advantage is not applicable when a macro economy is in the dual problem phase, where a policy of national isolation, instead of that of globalization, is valid. The primal problem phase and the dual problem phase of a macro economy, called in this thesis by the author, are a version of an expression quite common in OR （operations research）.
文摘Facility management has been widely used in corporations during the last decade and has undergone major changes. Some companies have decided to no longer outsource such services, managing more closely and assertively with a focus on cost reduction and delivery quality. At this point, there are many difficulties in the implementation of a structured maintenance, which results in generating effort, costs and delay in servicing internal customers. Currently, there are very few specialized courses in facility management in Brazil. The search for skills has become increasingly important taking into account increasingly competitive markets. The main objective of this article is to show the importance and the challenges of a good facility management, the impact on the Core business of the company and the risks of an implementation without well-defined processes.
文摘In this paper, we conduct research on the ecological tourism planning and the tourism development trend under the background of the sustainable development. Research on ecotourism definition, mostly will study ecological tourism, as a concept, its connotation cannot suitable for our the country＇ s current national conditions, only the environment as the research object of ecological tourism, the environmental resources as the main content of the ecological tourism development, embarks from the tourism motivation, tourism, tourist market, to implement ecological tourism. To change this situation, we propose the novel approach to enhance the traditional ecological tourism planning which will optimize the overall performance.
