Xi 'an Suburb Contrast Analysis And The Fitness Evaluation Of Climate Change

The backdrop of global climate change continues to accelerate with the urbanization process in Xi’an city, with its size gradually expands, non-farm population continues to increase, economic growth and industrial structure adjustment gradually accompanied by the Xi’an ecological environment and economic development of the conflict have become increasingly prominent, and has seriously hampered the sustainable development of Xi’an, in economic development, focus on ecological construction, fully adapt to climate change trends, to guide climate change toward have our direction of development has become to achieve adaptability of the key elements of sustainable development, global change is an urgent need to solve the socio-economic problems, the smart choice for human response to climate change is the human response to environmental change, promoting economic development to take an active effective behavior. For urban and suburban, we study the urban heat island effect and the rapid development of what its fitness how positive or negative impact of this on how we can better improve fitness provided a favorable basis for Xi’an to achieve sustainable development has an important practical significance and practical significance.In the comprehensive analysis of climate change in the status at home and abroad and to take countermeasures on the basis of the actual situation, the collection of weather statistics from1961to2010and from1997to2010socio-economic data, use Excel2007Software, the Morlet wavelet procedure analysis in recent years, Xi’an, characteristics and trends of climate change, established on this basis for the evaluation of climate fitness index factor, the use of statistical analysis of the relevant principles, the use of the fitness evaluation model SPSS16.0software and comprehensive analysis in recent years fitness inter-annual changes in Xi’an and suburban, and urban heat island impact on the adaptation degree and propose to improve fitness Some study measures to achieve sustainable development, Xi’an social, ecological, economic harmonious development of scientific references. Analysis, such as the conclusion to be drawn in the following areas:(1) Nearly50years of Xi’an, the temperature was rising trends, its upward trend rate of0.308℃/10a, higher than the global average rate of increase and China, due to the impact of the urban heat island, resulting in the Xi’an area average temperature higher than surrounding counties. Fen season, Xi’an, spring and winter temperatures increased significantly, warm spring, warm winter phenomenon is significant, and this characteristic is particularly evident in urban performance. Xi’an precipitation is shown a downward trend, the trend rate of13.675mm/10a cities and suburban counties, compared to the performance of the downward trend of the city than the suburbs more obvious. From the seasonal point of view, spring and autumn precipitation reductions, resulting in Xi’an, spring drought, severe autumn drought, which the city is the most obvious.(2) Using the Morlet wavelet function analysis cycle obtained nearly50years, the periodic oscillations of air temperature and precipitation changes in Xi’an, tends to be unstable and periodic oscillations of the time, warm the extent of increasing, for example, in the9-11a the scale, the temperature there are obviously well-being of alternating periodic oscillation, the oscillation period of time to stabilize, and basically experienced a cold-warm-cold-warm-cold-warm-cold-warm-cold-warm5cycle oscillation, is currently in the warm period on the time scale.20a larger time scale precipitation cycle oscillation is very obvious, and reduced rainfall trend in the increase, the cycle has gone through more than-less-and more-less-more than the alternate, is currently in the scale precipitation relatively large amount of period. From the overall climate characteristics, Xi’an, nearly50years in general have experienced a cold and wet-cold and dry-cold and wet-warm and dry step change in the warming and drying stages of development.(3) Use of the SPSS16.0Software and climate fitness model calculated the Xi’an area and suburban counties for nearly14years of fitness value and fuzzy comprehensive evaluation method on fitness reviews classification obtained nearly14years to four regional adaptation to climate change trends were shown a degree of overall volatility increases, and adaptability in a constantly enhanced, this is mainly because the climate gradually stabilized in recent years, as well as a reasonable adjustment of the regional economic structure and changing people’s attitudes, which in different years due to differences in natural conditions and the implementation of the policy led to its adaptation to changes in volatility trends. For urban and suburban comparison, the Xi’an area, raise the level of urbanization, but the city quality is poor compared with other major cities, leading to urban pressure, relative to the surrounding suburban counties in terms of fitness is small, lower level of adaptation. In summary, the adaptation is to adapt to regional environmental integrity of the global environmental system, integrated adaptation, rather than isolated, one-sided, sustainable development should also be so. We should be the whole community as a whole system, a systematic, holistic adaptation, to improve overall system adaptability, vulnerability reduction, sustainable development to start on a solid platform to better and more effective to promote regional economic development and ecological environment construction.