The Relationship Between The Growth Of Larix Gmelinii In The Great Khingan And The Climate Change And Its Time Stability

In this paper, we take larch Larix northern and southern areas of the Greater Xing’an Mountains as a research object such as the radial growth and climate change, larch Larix law; then we discuss its response over time of stability. Through this study, we revealed two areas that the north and the south of climate change and variation in their respective regions of the Greater Xing’an Mountains:1.In Great Khingan Mountains area,precipitation in 1967-2008 experienced a significant increase-a significant change in reversing the decline in 1989 as the time node. extreme precipitation events in Da Hinggan Mountains region also experienced a significant rise,then emerge a significant decline trend reversal.where R95 extreme precipitation sustained drought for several days, precipitation diurnal variation between erosion and precipitation and obviously there was a significant positive correlation with our knowledge of the contrary, the region is a growing trend in the context of sustained rainfall drought deeper level, precipitation decreased under the background of the continuing drought.2. The temperature of the Greater Xing’an Mountains in the north and the south in the past 42 years were significantly increased, but the area between the two different months rise, significant differences exist; the growing season temperatures of the two zones were significantly increased.3. Over the past two areas (the north and the south) of larch Larix 42a radial growth of the Greater Xing’an Mountains opposite trend occurs, the northern part of the radial growth of larch Larix significantly increased radial growth in the southern region significantly decreased; then the radial growth of both regions larch Larix and climatic factors in their respective regions, extreme weather-related factors were analyzed, results in lower temperatures in northern larch Larix limiting growth factor, in the southern region to strengthen the role of temperature caused by increased respiration, causing the accumulation of organic matter decreases, appear the temperature rise at the narrow wheel background.4. We carry out a analysis between the climate factor and the tree growth,find that the characteristic of change was strong stability. Exclude the window period after interference,we find that The response of precipitation strong stability but there are differences in the response of temperature stability.