60a South To Hail Damage In Recent Spatial And Temporal Variations And Their Impact On Agricultural Production

Hail damage is severe weather in our region one of the main. Complex terrain in southern Xinjiang region, sparse vegetation land surface temperature differences, and easy to form a strong updraft. In this paper, the five southern states for nearly 60 years in 1950-2008 hail data, the formation of hail in South spatial and temporal characteristics, occurrence, hail intensity, hail damage all over the state of agricultural production are analyzed, and These characteristics and the relationship between social and economic development were discussed. The main results are as follows:(1) in the last 60 years, the five southern states showed spatial variation of hail damage: more than northwest southeast, the mountains than the leeward side of the windward slope of the mountain valley basin areas than open areas east of the flared opening multi-valley, the basin center less. Aksu Prefecture, the highest number of hail disasters, the most severely affected, the number of large hail in Kashi Prefecture, g states and hail damage in Bavaria, number and affected area of at least Hotan small hail the impact of disasters. Occurrence in the study area more than 50% of the total number of occurrences for the Aksu Prefecture, Hotan Prefecture but less than 1% of total number of hail.(2) nearly 60 years, the five southern states showed hail damage time: Aksu and Kashgar in the 20th Century before and after the 90's hail damage occurs most frequently affected area is the most serious state of Bavaria and the grams of hail occurred each decade, hail Wada happen a few times 90. Hail 3 to 11 month period, 12 to next February for the period without hail. See a few areas in early March hail, hail started in April in most areas. Kashi, Hotan Prefecture, grams of hail is over the state in September, Bavaria and the termination of Aksu Prefecture in October. Region from May to August for the year mainly hail season, June is the month of greatest frequency of hail. Hail damage in South for the summer season showed up on the next in spring and autumn, less in winter no hail characteristics.(3) the extent of hail damage and hail the size, density and hail duration. Hail intensity in the study area, hail damage resulting hail of 30 minutes, especially 10-20 minutes based; Aksu Prefecture, Kashi Prefecture, g-state area, Bavaria the four regions, hail average diameter of 5 - 20mm accounted for the largest number between, and generally less than the diameter hail Wada 5mm.(4) the five hail damage to the southern state of agricultural production are significant differences, throughout the state between the number of the affected area and the occurrence of a significant positive correlation. Increase in the number of the more hail hail the degree of influence by the stronger. Occurrence of hail and the affected area of the five southern states with primary industry, secondary industry and tertiary industry, GDP per capita arable land area, crop acreage, grain production, cotton production and the livestock at the end of the first few, etc. correlation analysis, found that hail the impact of a great social and economic development, especially hail occurrence and around the affected area of the state of the primary industry, crop acreage, grain production, cotton production, number of head of livestock at the end of the more prominent. Food production from the hail and the mutual relations, in the year of severe hail, food production was declining dramatically, we can see hail a great impact on agricultural production.With the rapid economic development, and hail damage caused by disasters have also increased to varying degrees, the trend to increase the level of industrial and agricultural production losses, and even endanger people's lives and property. This paper analyzes the five southern states hail damage occurrence, use of scientific preventive measures, prevention and mitigation of agro-meteorological disasters, industrial and agricultural production so as to avoid or reduce the loss of the local agricultural economy and the promotion of sustainable development positive.