An evaluation system for suitability of urban public rental housing construction in Chongqing

A social problem that low-income people are unable to purchase houses in urban areas has been focused in recent years and the housing security system has also become an important part of the social security system. In recent years, public rental houses appeared as a new type of affordable houses. The national government took the construction of public rental houses to the national strategic level. Currently, there are many problems in the public rental house construction. For example, policy mechanisms are inadequate, the use of funding is not in an efficient way, the location of public rental houses is far away from the downtown, the plot ratio is too high, and facilities are incomplete. There are no appropriate indicators to comprehensively evaluate the public rental house construction. Based on the livable evaluation system in Chongqing, we selected four aspects of relevant indicators as the economic suitability, environmental suitability, social suitability, and life suitability to establish the public rental house construction suitability evaluation system.

Natural environment suitability for human settlements in China based on GIS

With the degeneration of environment and acceleration of urbanization,human environment has attracted great attention worldwide.This paper sets up the Human Settlements Environment Index(HEI) model and evaluates the natural environment suitability for Human Settlements in China based on GIS technology.The results show that the HEI of China decreases from southeast to northwest in general,HEI is significantly correlated with population density at grid size and the correlation coefficient(r) between them reaches 0.93,which indicates that natural environment suitability for Human Settlements has a significant influence on population distribution.Most people in China mainly concentrate in areas with high natural environment suitability.The total suitable area is 430.47×104 km2,which accounts for nearly 45% of the total land area in China,while the proportion of people living in the area reaches 96.56%.With a population density of 18 people per square kilometer,the critical area is the transitional region for people to live in China.The critical area covers 225.11×104 km2 with a population of 41.12 million.The non-suitable area covers 304.42×104 km2 with a population of only 2.49 million.

Evaluation of suitability of university ladder classroom environment on humans

Evaluation of the suitability of university ladder classroom environment on humans is an effective approach to improve the quality of the indoor environment and protect human health.However,there are unresolved issues regarding the suitability of university ladder classroom environment for humans.For example,the design of en-closure structure and heating ventilation and air conditioning(HVAC)system is unreasonable,and the indoor air quality does not meet the required standard.In this study,the suitability of university ladder classroom environ-ment on humans was considered the research object.The evaluation indices of indoor environment were selected from indoor air quality,indoor thermal and humid environments,light environment,and sound environment.And the health and comfort of users were taken as the evaluation indices of users.According to the results of expert investigations and case measurements,the index weight was determined by the expert-entropy weight method,and a complete evaluation system of indices was built.There were two first-level,six second-level,and fourteen third-level indices in the evaluation system.The evaluation indices of each level with the largest weight were indoor environment(0.5940),user health(0.2530),and indoor temperature(0.1175)respectively.By comparing the actual learning effect to the evaluation results,the applicability of the evaluation system was determined.The evaluation system of the suitability of university ladder classroom environment on humans is convenient for operators to identify the weak points between humans and the environment.The evaluation system is endowed with important theoretical and practical significance to realize the green development of colleges and universities and build an environment-friendly campus.

Taking a Path of Human Rights Development Suitable to the Economic Basis and Humanistic Environment of China, Realizing“Chinese Dream”

The Sixth Beijing Forum on Human Rights is opened today, which is co-spon- sored by the China Society for Human Rights Studies and the China Foundation for Human Rights Development. First, on behalf of the China Foundation for Human Rights Development, I would like to express warm congratulations to the opening of the Forum, and heartfelt thanks tothe friends who have always cared for and supported for the development and progress of human rights cause of China.

Evaluation on the human settlements environment suitability in the Three Gorges Reservoir Area of Chongqing based on RS and GIS

To explore geographical differences in quantitative characteristics and spatial pattern of human settlements environmental suitability （HSES） in the Three Gorges Reservoir Area （TGRA）, terrain, climate, hydrology, vegetation and other natural factors were selected to build the livable environmental evaluation, and the quantitative analysis was conducted through Remote Sensing（RS） and Geographic Informational System （GIS） to reveal geo- graphical characteristics and spatial patterns of HSES. The results are obtained as follows： （1） inhabitants of the TGRA of Chongqing are concentrated in the area with moderate h.igh HSES, which is 78% of the total population distributed in 48% of the study area; （2） the HSES is closely related to the terrain, and it forms an arc-banded spatial succession pattern： relatively low in the northeast and the southeast while comparatively high in the west and the south; （3） large numbers of people are distributed in the area with low suitability （with higher population density than the average of the western China）, but economic development level in these areas is quite low. Moreover, these areas are ecological sensitive and fragile, many kinds of eco-environmental problems have been caused by human activities. Therefore, population migration and layout are reasonable options for the development of these areas.

A study of the temporal and spatial variations in the suitability of the environment in Chinese cities for tourism and in strategies for optimizing the environment

With the aim of guaranteeing the interests and health of tourists,this study comprehensively evaluates the suitability of the environment in different cities in China for tourism by considering the impacts of climate,vegetation and environmental factors on health.The Universal Thermal Climate Index(UTCI),total precipitation(PREC),Vegetation Leaf Area Index(LAI),concentration of particulate matter with a diameter of less than 2.5μm(PM2.5),and the downward UV radiation at the surface(UVB)are used as indices.In addition,the Delphi–AHP–TOPSIS algorithm is introduced and is used for the comprehensive evaluation of the environmental suitability of 684 cities in China for tourism in 2019.It is found that Chinese cities vary greatly in terms of the suitability of their environments for tourism.Among the factors that affect the environmental suitability,the LAI is important,with an increase in the LAI generally being advantageous.In contrast,an increase in the PM2.5 concentration is a key factor that limits the environmental suitability of an area.Thus,urban landscaping and control of the atmospheric quality are essential and effective ways of improving the suitability of the environment of cities in China for tourists.

A GIS-based Study on Sustainable Human Settlements Functional Division in China

在中国1km×1km栅格尺度人居环境自然适宜性分类评价和分县尺度人口空间集聚程度分级评价的基础上,结合中国分县资源环境承载力和区域经济发展水平和发展潜力,确立了中国可持续的人居功能分区评价模型,提出了中国可持续发展的人居功能分区方案。研究表明:中国可持续的人居功能分区空间分布呈现东南半壁优于西北半壁的格局;人居功能强可持续地区面积约139.75×104km2,占国土面积的14.66%,相应人口4.3亿,接近总人口的1/3,主要分布在东南沿海、长江中下游地区、四川盆地、黄淮海平原以及东北平原的部分地区;人居功能较强可持续地区面积约193.61×104km2,占国土面积的1/5,相应人口3.2亿,接近总人口的1/4,主要分布在三江平原、辽河平原、山东半岛等地;可持续地区面积210.19×104km2,约占国土面积的22%,相应人口3.7亿,占总人口的28.24%,主要分布在呼伦贝尔高原、黄土高原和云贵高原等地,零星见于藏东南谷地和柴达木盆地等地区;较弱可持续地区,面积约145.85×104km2,占国土面积的15.30%,人口1.4亿,约占总人口的11%,零散分布于黄土高原、川滇高原和云贵高原的部分地区;弱可持续地区面积约263.86×104km2,约占国土面积的27.68%,相应人口0.4亿,接近总人口的3%,主要分布在青藏高原、西北荒漠以及川滇高原北部地区。