Quantitative measurement of urban comprehensive resilience is a basic step in marking urban resilience level and leading urban eco-civilization construction. This paper, viewing from dissipative structure theory, selects social, economical, ecological and infrastructural resilience and their 21 sub-categories and uses entropy TOPSIS model to quantitatively measure Beijing's 2016 to 2019 urban comprehensive resilience based on urban giant system entropy. Beijing's 2016 to 2019 urban comprehensive resilience has been rising over time with its average showing a trend of “rising-stabilizing-rising”, resilience index between 0.30 to 0.76. Beijing's top 3 in urban comprehensive resilience index are Chaoyang, Haidian and Xicheng districts, at 0.76, 0.74 and 0.55 respectively. Beijing urban comprehensive level can be divided into five levels, low, relatively low, middle, relatively high and high based on the resilience index, of which low and relatively low are 82% of the total districts, suggesting an overall low resilience level and varying spatially, in a distributing pattern of “north-low, southeast-relatively-high, center-high”. Their resilience levels are impacted by governmental investments and natural resources abundance of advantages and disadvantages, of which Chaoyang and Haidian districts are relatively high, and Chaoyang's infrastructural resilience level is much higher than others, while Mentougou, Fangshan and Huairou districts are of more ecological resilience. This paper presents approaches to urban comprehensive resilience on controlling producing system's internal entropy, increasing inputting system's negative entropy, promoting urban reviving, upgrading infrastructures and ecological construction.

This paper uses references and chronological series to review the research history of resources environmental carrying capacity, and summarizes its theoretical methods, covering its connotation, research scale and contents, establishing methods of evaluation index system, quantitative methods of indicators, evaluation methods of comprehensive carrying capacity and research trend. This paper analyzes the limits and evolutional trend of existing evaluation of resources environmental carrying capacity, and presents the research direction shall shift from resource evaluation and environmental protection to land spatial planning and sustainable development of eco-environment, which can be a constraint and reference for ecological civilization construction and development. Research on resources environmental carrying capacity is constrained by resource environment, orientated by spatial optimization. A scientific evaluation index system and appropriate evaluation method are key to evaluating resource environmental carrying capacity.

As China^,s economy goes fast, carrying out the discipline development of land and resources management, and speeding up the relevant personnel training, has become an important means for solution of resource bottlenecks in China^,s national development process. Through the literature review, statistical analysis and other methods, this paper discusses the necessity and feasibility, the main issues and challenges of creating such disciplines, as well as their basic connotations and characteristics, and concludes that land, water, marine, and mineral resources should be targeted, and the natural resources, management, economics, operations research, and IT science should be used as a guide within the development of these disciplines. And it should form a discipline group, as the core set of national laws, economic and administrative system as a whole, which will promote the effective management, the optimization of spatial allocation and sustainable use of land and resources.

Yangyun town is a place where debris flow frequently happens in Gaizhou city and suffers from economic loss. This paper, based on the debris flow happened in July, 1981, studies the debris flow accumulation, terrain and vegetation, analyzes the features and conditions of debris flow. This study indicates that this debris flow is derived from flooding, large, accumulating coarse gravels, poor sorting and roundness. Materials are from the nearby mountain, weathered granite. Debris flow most occurs in the rainstorm seasons in July to August, follows along steep and deep valleys and accumulates in the valley mouth. The rainstorm is an evocator for this debris flow.