城市地域主义的建筑表达

本文以沈阳河畔新城俱乐部的设计为例,探讨了城市地域主义的建筑表达途径,并从城市地域性、场地特征、布局概念、形式逻辑、空间策略、材料表情等几个方面对建筑做出诠释。

SPATIAL-TEMPORAL CHANGES AND TRENDS OF AGEING IN CHINA

This study focuses on the development stages of ageing and its regional differences in China based on examination of official statistics and documents. The development of ageing in China has experienced three major stages. Firstly, in the 1950s, low coefficient of elderly population (over 65 years) paced up to primary adult type. Secondly, there was a deeply drop of the elderly population because of natural disaster and political factors in the 1960s. Thirdly, from the 1970s to the end of 20th century, the constant increasing of elderly coefficient made China close to elderly society. With statistic data of population, Logistic model is used to simulate the future development of ageing, and two characteristics of development of ageing are presented. Firstly, as for ageing from 2005 to 2050, the elderly coefficient will grow up significantly from 8.48% to 16.30%. Secondly, after 2025, the increasing rate of elderly coefficient will slow down gradually. The regional differences of elderly population in China can be summarized as follows: 1) the eastern China possesses higher elderly coefficient and huger elder population than the western China; 2) about 47.4% of municipalities and provinces in the eastern China become elderly especially Shanghai, Zhejiang Province, Jiangsu Province, Beijing, Tianjin and Shandong Province; 3) ageing intensity is higher in rural area than urban area but getting close each other, and there are more elderly people in rural area than in urban area. Therefore, these will arose aged care problems, and it becomes important issue to establish the social security system in rural areas as soon as possible for elderly people.

Analysis on Regional Difference of Development of Elderly Care Real Estate in Gannan Area

The continuous expansion of the scale of the elderly population and the continuous acceleration of elderly population ageing have had a profound impact on China＇s economy, society and family, especially for the development of China＇s pension indusby, in this paper, taking Ganzhou City as an example, the population size, population ageing rate, urbanization rate and residential area were analyzed using Z-Scores standardized data processing model from three aspects： the population development level, the real estate market maturity degree and the service development level. The proportion of the tertiary industry and other indicators were used to explore the suitability of the development of eldedy care real estate, and cluster analysis was used to classify the sample areas according to the suitability. The results show that the 18 counties and cities in Ganzhou City could be divided into three categories, areas with poor suitability, areas with development potential, key development areas. Finally, suggestions were put forward that the target market of the development of old-age real estate could be comprehensively analyzed by combining the population development trend of the region with its thoughts and concepts, social and economic development, the maturity of the real estate market and the development of the service industry to ensure the sustainable operation of the old-age real estate.

Spatial variation of stable isotopes in different waters during melt season in the Laohugou Glacial Catchment, Shule River basin

To evaluate isotopic tracers at natural abundances by providing basic isotope data of the hydrological investigations and assessing the impacts of different factors on the water cycle, a total of 197 water samples were collected from the Laohugou Glacial catchment in the Shule River basin northwestern China during the 2013 ablation seasons and analyzed their H- and O-isotope composition. The results showed that the isotopic composition of precipitation in the Qilianshan Station in the Laohugou Glacial catchment was remarkable variability. Correspondingly, a higher slope of δ180-δD diagram, with an average of 8.74, is obtained based on the precipitation samples collected on the Glacier No.la, mainly attributed to the lower temperature on the glacier surface. Because of percolation and elution, the bottom of the firn the isotopic composition at is nearly steady. The 6180 /altitude gradients for precipitation and melt water were -o.37%o/100 m and -o.34%o/100 m, respectively Exposed to the air and influenced by strong ablation and evaporation, the isotopic values and the 6180 vs 6D diagram of the glacial surface ice show no altitudinal effect, indicating that glacier ice has the similar origins with the firn. The variation of isotopic composition in the melt water, varying from -l0.7‰ to -16.9‰ （8180） and from -61.1%o to -122.1%o （6D） indicates the recharging of snowmelt and glacial ice melt water produced at different altitudes. With a mean value of -13.3‰ for 8180 and -89.7‰ for 8D, the isotopic composition of the stream water is much closer to the melt water, indicating that stream water is mainly recharged by the ablation water. Our results of the stable isotopic compositions in natural water in the Laohugou Glacial catchment indicate the fractionations and the smoothing fluctuations of the stable isotopes during evaporation, infiltration and mixture.

Regional Economic Development in China——Situation,Problems and Policy Recommendations

The growth of regional economy in China was stable with a slight decline in2013.Growths in major economic indicators,namely the industrial added value,the total fixed asset investment,the total retail sales of consumer goods,and the total volume of import and export trade differ across the eastern,central,western and northeastern regions,but the overall difference is small.The regional economic development still faces certain problems,such as unbalanced development among regions,insufficient implementation of development planning,lack of in-depth regional cooperation,irrational competition of development of new zones,and uncoordinated policies on ecological progress from different government authorities.This paper suggests that China should formulate zoning policies and supporting measures to accelerate the development of key economic belts,promote new urbanization,transform the old industrial bases,strengthen joint prevention of regional environmental pollution and promote the opening up of the inland areas to the western regions.

Knockdown of OsHox33, a member of the class III homeodomain-leucine zipper gene family, accelerates leaf senescence in rice

The class III homeodomain-leucine zipper(HD-Zip III)gene family plays important roles in plant growth and development,including regulation of apical embryo patterning,embryonic shoot meristem formation,leaf polarity,vascular development,and meristem function,with a particularly crucial function in leaf development.Although HD-Zip III members are highly conserved in land plants,previous studies,such as genetic analyses based on multiple mutants in Arabidopsis and other plants,suggest that various HD-Zip III family genes have evolved with distinct functions and pleiotropic effects on plant growth and development.In this study,we analyzed a HD-Zip III member,OsHox33,and demonstrated that it plays an important role in age-dependent leaf senescence in rice.We constructed two specific RNAi vectors derived from the 5′-end region and 3′-UTR of OsHox33 to knockdown its expression.Transgenic plants harboring either RNAi construct displayed similar phenotypes of precocious leaf senescence symptoms,suggesting that knockdown of OsHox33 accelerates leaf senescence in rice.pOsHox33::GUS fusion expression and RT-PCR revealed that OsHox33 is highly expressed in young organs,especially in young meristems such as shoot apical meristems,intercalary meristems,and young callus.In addition,real-time PCR indicated that OsHox33 was more highly expressed in young leaves than in old leaves.To further investigate OsHox33 function,we analyzed chloroplast ultrastructure in different-aged leaves of RNAi plants,and found that OsHox33 knockdown accelerated chloroplast degradation,which is consistent with RNAi phenotypes.Finally,real-time PCR studies showed that OsHox33 can regulate the expression of GS1 and GS2,two senescence-associated genes.Taken together,the work presented here provides new insights into the function of HD-Zip III members in plants.