Shiwei Liu

Southwest University in Chongqing | SWU · School of Geographical Sciences

Land surface temperature (LST) is a key parameter in the study of surface energy balance and climate change from local through to global scales. Vegetation has inevitably influenced the LST by changing the surface properties. However, the thermal environment pattern in the Yangtze River Basin (YRB) still remains unclear after the implementation of...

A series of complex organic fractions with different physical and chemical properties make up soil organic carbon (SOC), which plays a vital role in climate change and the global carbon cycle. Different SOC fractions have different stability and respond differently to vegetation succession. This research was carried out to assess the impacts of veg...

Understanding the influence of vegetation conversion induced by land degradation on soil organic carbon (SOC) dynamics provides a basis for the sustainable use of grasslands. While labile carbon fractions often vary with the type of vegetation, little is known about whether and how vegetation degradation affects the recalcitrant carbon fraction tha...

Variations in soil organic carbon (SOC) and its fractions within soil aggregates in response to land-use change are important to understand the carbon cycles in terrestrial ecosystem. However, responses of total SOC, SOC fractions, and SOC stability in different soil aggregates to land-use change are less addressed, especially in karst regions with...

College students are the engine of the sustainability of the future, and their awareness of environmental protection and waste classification is very important for the sustainable implementation of urban solid waste separation projects. Chongqing is one of the first 46 waste separation pilot cities in China. The primary objective of this study was...

Soil available nutrients (available nitrogen (AN), available phosphorus (AP) and available potassium (AK)) and stoichiometry are two important fertility indicators for soil ecosystems, which play an essential role in maintaining ecosystem function and protecting land from degradation. However, the changes in content and stoichiometry of soil availa...

The depth distribution of soil organic carbon (SOC) in a soil profile is important to examine the effects of different treatments on SOC sequestration. This study was conducted to determine the effects of different vegetation types on the concentration, storage, and stratification ratio (SR) of SOC in northeastern China. Five vegetation types, Leym...

Farmers are the main land managers, and their production decisions crucially affect crop outputs and farmland preservation. Understanding the motivations and factors underlying farmers’ decision making is a fundamental to implementation polices of government. This study analyzed factors that influence farmers’ choice of corn reduction under the Chi...

Soil organic carbon (SOC), nitrogen (N), phosphorus (P) and potassium (K) are essential soil nutrients needed for plant growth and their stoichiometric ratios are important indicators of the elemental balance in soil ecosystem. However, changes in contents and stoichiometric ratios of SOC, N, P and K under different land uses in salt-affected regio...

Soil organic carbon (SOC), nitrogen (N), phosphorus (P) and potassium (K) are essential soil nutrients needed for plant growth and their stoichiometric ratios are important indicators of the elemental balance in soil ecosystem. However, changes in contents and stoichiometric ratios of SOC, N, P and K under different land uses in saltaffected region r...

The subjective quality of life (QOL) can reflect differences in perceptions of residents and their true state of life. Taking Dehui City of northeast China as a case, based on 482 questionnaires from urban and rural residents, this paper evaluated the subjective QOL from three views, i.e. the attitude of residents to the objective material conditio...

Understanding the influences of land use conversions on soil quality (SQ) and function are essential to adopt proper agricultural management practices for a specific region. The primary objective of this study was to develop soil quality indices (SQIs) to assess the short-term influences of different land uses on SQ in semiarid alkaline grassland i...

Soil labile carbon (C) and enzyme activities are valuable indicators of changes in soil quality and health. Understanding the changes in soil labile C and enzyme activities under different land uses is important to maintain soil quality and health and for sustainable land use. The primary objective of this study was to investigate the short-term in...

This paper develops a conceptual model and an indicator system for measuring economic resilience of resource-based cities based on the theory of evolutionary resilience and the related concepts of persistence, adaptation, and transformation. Nineteen resource- based cities in Northeast China were analyzed using the indicator system. The results sho...

Resource-based cities face unique challenges when undergoing urban transitions because their non-renewable resources will eventually be exhausted. In this article, we introduce a new method of evaluating the urban transition performance of resource-based cities from economic, social and eco-environmental perspectives. A total of 19 resource-based c...

Sustainable urbanization is not only an important research topic in the field of urbanization, but also the development direction of new-type urbanization. In this paper, we construct an index system to evaluate sustainable urbanization potential with the entropy method. Results show that potential values of sustainable urbanization in most cities...

A panel dataset covering 23 Chinese provinces over 11 years is used to analyze the productivity and efficiency change in China’s rice production during the new farm subsidies years. We find that all the major producing regions are relatively efficient and majority of years have witnessed high average efficiency scores range from 0.918 to 1.000. Dec...

A non-parametric Data Envelopment Analysis (DEA) technique was applied to investigate the degree of efficiency and efficiency change of prefecture-level cities in the North-East China from 2000 to 2012. Mean pure technical efficiency in a DEA model with the number of agriculture was 0.79, indicating that there is a big potential for a more efficien...

Based on the urbanized connotation, this paper constructs the comprehensive index system of the level of regional urbanization embarking population urbanization, economy urbanization, and society urbanization. The evolution of urbanization level of Northeast old industrial base from 1994 to 2008 are evaluated by entropy method. Results showed that...

During the past 20 years, great landscape changes took place in the northwest of China. Landscape change resulted in soil type transformations. This paper discusses the changes and fractal of soil types in oasis. In order to do it, the soil type maps of Manasi River Basin in 1987 and 2006 were used. 13 types of soil and 2 types of land-use were cla...

The global urbanization process poses a serious challenge to achieving sustainable development. The significance of sustainable urbanization has been increasingly appreciated, yet, very little empirical evidence has been provided for this prospect. In this paper, we use the Human Development Index and the ecological footprint to measure the sustain...

Populus euphratica have serious degeneration under the long-term stress in the lower reaches of Tarim River and many trees began to wither from upper canopy to lower canopy. In this paper, differences in physiological indexes of Populus euphratica leaves between upper canopy, middle canopy and lower canopy, which response to the external stress wer...

Soil distribution pattern play a significant role in the stability conservation and economic development of oasis in arid regions. Hence, ecologists and agrology scientists have a central interest in understanding the spatial distribution changes of soil types. The aim of this study was to analyze the main processes of soil distribution pattern cha...

Because of long-term drying of the lower reaches of the Tarim River, oasis ecosystems are facing serious threats and have started to degenerate. An ecological water conveyance project has been started in the lower reaches of the Tarim River to save the degenerated ecosystem. The effects of ecological water conveyance on the ring width increments of...