Thus the condition of Land-Use and Land-Cover shows an apparent grads difference. 2. The human activities have a great influence on the Land-Use change. According to the human impact index formula, all the human impact indexes occuring during six periods including the years of 1961, 1973,1981, 1993,2000 and 2003,and in the eightmain districts, are increasing gradually.
According to SUAWR contribution of the 7 principal components retrieved from indicators system by factor analysis,the key of entire improvement of SUAWR of the whole evaluating area depends on adjustment of anthropogenic activities to lessen bad human impact on SUAWR.
This distance can be used to divide the whole study area into natural landscape and human impact landscape suitably. Human landscape distribution to land form resulted that the area with elevation from 2? 400 to 4?
Historically Chinese Alligator widely distributed in Yangtze River valley and Yellow River valley. With the changing of climate and human influence its wild population declined dramatically. Till 1983, only about 500 individuals survived in some isolated sites of middle and lower reaches of Yangtze River (South Anhui Province and Northwest area of Zhejiang Province).
The data of remote sensing with the characteristics of wide cover, fast update, are effective to investigate landscape pattern and dynamic process by designing and comparing the remote sensing of landscape in different periods. Therefore researching the landscape pattern and its changing trend is the foundation for how to reasonably mix the nature or human influence, how to construct the landscape distribution in safe ecosphere, how to issue the effective decision about ecosphere protection and administration.
In view of the high artificial influence factor and the low test accuracy of the traditional universal testing machine system,a WE300A universal testing machine system is deveolped by using virtual instrument . The software is based on PCI bus and runs on the LabWindows/ CVI platform.
The diversity index of the birds in the area is 1.61,and evenness index is 0.87. In this essay, explanation of the cause of the formation is given according to the weather, geography, vegetation, and the artificial influence. The essay ends with some concrete protective measures.
The environment ecology, plant species composition, character of community quanity, dominant degree and productivity of rotation land, waste land and waste man-made grassland at different evolution stages and under different artificial influence in southwest mountainous region of Sichuan are discussed in this article.
This paper analyzes some different methods for measuring and computing aggregate density and air voids of asphalt mixture, which influence on determining air voids of asphalt mixture based on the study of some different fine aggregate asphalt mixtures, discusses similarities, differences and correlations of different methods, suggests that we should avoid artificial influence on determining air voids of asphalt mixture and looks forward to standardization of measuring and computing methods
It has great significance to carry out the research on environmental change, regional response and man-made influence of the region, especially to desertification control of agriculture and animal husbandry interlaced area in northern China, to ecological environmental construction of China and to regional development striding across provinces or districts.
On the basis of research theories and methods of environmental vulnerability, by using the software such as Excel, Maplnfo, Photoshop and mathematical statistics, the characteristics of environmental vulnerability change of Mu Us Desert is analyzed, vulnerable degree assessment model is established, environmental vulnerable degree is evaluated and man-made influence in the process of environmental vulnerable change is discussed.
Microorganisms of Lake Baikal and Lake Nyasa as Indicators of Anthropogenic Influence: Prospects for Use in Biotechnology
The influence of moisture and hydration is 2-3 times less significant; mesorelief is 4-5 times less significant; and productivity (feeding capacity) and anthropogenic influence are 7-9 times less significant.
Common features of the distribution of products of hydrogen sulfide in sediments of the river and water reservoir and the specificity of anthropogenic influence in each basin are established.
The status of amphibians in populations subjected to anthropogenic influence of various natures has been evaluated.
The process of attaining stationary state and reorganization of the genetic structure of the system under anthropogenic influence were simulated.
The baseline concentrations of heavy metals in soil and the geochemical norms have been established to distinguish natural or artificial influence on the environment.
The Project Skyfire is an attempt to learn more about the atmospheric conditions leading to thunderstorms in this area and to investigate the possibilities of an artificial influence on their development by cloud seeding.
The main difference from previous attacks is that the artificial influence is done periodically in order to destabilize the infrastructure.