Surface albedo is widely used in energy balance of the earth surface, weather forecast, global change research and water
circulation. The different land surface features and land cover conditions can cause the anisotropy of surface albedo
distribution. It is a powerful tool to derive large area of regional surface albedo using remote sensing technique. Based on
a topographic and atmospheric correction, different band integration approaches form ETM were attempted to obtain the
surface albedo over the upper reaches of Tarim River. The relationship between land surface albedo and land use type is
researched by taking account of the particularity of the basin's geography character.
The ecosystem risk assessment is an essential decision making system for predicting the reconstruction and recovery of a
damaged ecosystem after intensive mankind activities. The sustainability of environment and resources of the lake
ecosystem in arid districts have been paid close attention to by international communities as well as numerous experts
and scholars. The ecological risk assessment offered a scientific foundation for making the decision and execution of
ecological risk management. Bosten Lake, the largest inland freshwater lake in China, is the main water source of the
industrial and agricultural production as well as the local residence in Yanqi basin, Kuara city and Yuri County in the
southern Xinjiang. Bosten Lake also provides a direct water source for emergency transportation in the Lower Reaches
of Tarim River. However, with the intensive utilizations of water and soil resources, the environmental condition in the
Bosten Lake has become more and more serious. In this study, the theory and method of landscape ecological risk
assessment has been practiced using 3S technologies combined with the frontier theory of landscape ecology. Defining
the mainly risk resource including flood, drought, water pollution and rich nutrition of water has been evaluated based on
the ecosystem risk assessment system. The main process includes five stages: regional natural resources analysis, risk
receptor selection, risk sources evaluation, exposure and hazard analysis, and integrated risk assessment. Based on the
risk assessment results, the environmental risk management countermeasure has been determined.
Based on research on the oasis-desert ecosystem, changes in land use of the Akesu-Awati oasis from 1990 to 2000 are analyzed through using the methods of 3S and statistics. A classification system of land use is created and 3S-integration is realized. Using the table of equivalent weight factors of the economic value of China's ecosystem services, the loss of ecological value resulting from land use changes are estimated. This research shows that changes of land use are notable. Areas of land use such as cropland, residential site and saline land amount increase rapidly in contrast to various degrees of reduction in grassland, forest land, water area and wetland. The ecological value has become negative, decreasing by 1.055×109 yuan. Given such great losses in the estimated economic value of ecosystem services, it is clear that the best development of society and economy in the research area will be achieved only through comprehensive, planned sustainable development.
The new concept about the resource efficiency in Xinjiang has been discussed in this study based on the advanced technology theory in policy making perspective. The analysis is focused on the resources advantage in the development, resource pressure, resource efficiency and technical approach to resource efficiency. The idea of industrialized development centered on resource efficiency, its control factors and basic technical framework for realization of resource efficiency factors, which include technique in application of recycled materials; water-saving technique oriented for efficiency in applying water resource; bio-technology for high yield and better quality of farm crops; comprehensive technique involved in farm-produce further process and agricultural industrialization; information technology around information support and information-oriented society; technique in transforming resources including oil and natural gas, mineral products and wind power; technique in control of desertification and biological security.
Oasis stability is a concept under certain scaled conditions. It is different that the mechanism of the oasis stability, main driving forces of stability and diagnostic results from the different scales. The particular scales that are chosen and the varying combinations of those scales are the main contributing factors to oasis stability study. This paper reviews the research history of oasis stability, discusses the basic academic standpoints on the stability of the oasis ecosystem, and puts forward the relationship between the oasis stability conception and its related scales. It suggests that: 1) The scales are related to certain preconditions; 2) The stability scales should be classified as: spatial-temporal changes, system organization, society target, and landscape; 3) The mechanisms of the oasis stability and its resulting assessment methods are consequently based on the variation of scales.