Since the 20th century, deterioration of ecological environment around world has challenged urban space construction. With development urbanization, consumption resources and energy increased, level biodiversity decreased, environmental pollution is approaching critical level, contradiction between human habitat activity become increasingly prominent. The sustainable along with its economic social benefits, taking into account quality life environment, a new important subject that needs to...

In the field of quantitative remote sensing forest biomass, a prominent phenomenon is increasing number explanatory variables. Then how to effectively select variables has become an important issue. Linear regression model one commonly used models. process establishing linear model, vital step Focusing on variable selection and stability, this paper conducts comparative study performance eight parameter estimation methods (Stepwise Regression Method (SR), Criterions Based The Bayes (BIC),...

Since the 20th century, world is facing two major problems: serious deterioration of ecological environment and accelerated decline living quality people residing in urban environment. Urban development policies, patterns, production consumption modes have an important impact on global environmental changes that threaten future mankind. The focus space construction has also turned to fields security, energy development, resource management virtuous circulation. Investigating spatial...

Despite the importance of landscape resources in ecotourism villages, there is no scientific and complete index system for evaluation rural landscape.This paper attempts to construct an villages Xi'an section northern piedmont Qinling Mountain.Firstly, preliminary indices relevant data were collected through field surveys expert consultation.Next, weight each was determined using AHP.The conclusion that: criteria layer, weights elements can be ranked as natural (A1) > humanistic material...

Forest site quality assessment refers to the judgment and prediction of appropriate forestry or potential productivity site. It is an extremely important basic work in forest management. Taking Zhejiang province as a research area, based on four consecutive National Inventory (NFI) data from 1994 2009, maximum DBH growth rate evaluation indicator Chinese fir plantation proposed. The quantification theory model I was used establish regression relationship between factors. results show that...

City wall is an important symbol of ancient Chinese cities with unique geographical and cultural characteristics. Thus, the preservation this historic landmark considered significantly important. However, numerous residential construction activities changes in ecological environment have destructed a great portion city walls recent years. This study looks into from systematic perspective line actual characteristics Longdong Region to provide guideline measures for protection restoration such...

The "urban planning methodology" course for postgraduates focuses on analyzing and solving problems from the system level of research methods. Taking constructivism as basis epistemology, "collaborative" teaching absorbs ideas participative teaching, it's a new mode to improve promote postgraduate teaching. Through construction "cooperative" strategy model, implementation four links: topics, organization, framework, collective writing is adopted establish subjective concept, participation...

With the proliferation of green and low-carbon development, China has made cyclical (GC) development key strategy for transition model.This paper firstly analyses connotations circular economy, summarizes basic features concept GC development.Based on Qingba Mountain Area (QMA), authors set up a four-level (enterpriseindustry-region-society) support system in this ecological area, then constructed model consisting three sub-models: crossindustry sub-model, urban-rural cross-regional...