Research On Correlation Between High-quality Nanguo Pear And Econological-geological Field Of Origin

Nanguo pear is famous fruit in Liaoning Province and was awarded a national famous special varieties by the Ministry of Agriculture in1988. High-quality pear are mainly produced in Anshan, Haicheng, Liaoyang and other places and has been the national certification of origin. Its growing region has some limitations, like climate, geology, soil properties and topography (ie ecological geology field) and basic conditions are closely related. This fruit is also cultivated in western Liaoning, Inner Mongolia, Jilin, Heilongjiang and other places, but the quality and flavor of Anshan in the southern region are better than others. However, there not been relevant departments such features famous fruit-Nanguo pear geological field commenced production of ecological systems and complete research.Nanguo pear large scale planting areas, such as Tangjiafang, Moyunshan and other places were selected in this paper as a key research area in the study area on the basis of existing research results, the use of eco-geological and geochemical background background information on the Nanguo pear ecological geological field data analysis. Designed for high-quality Nanguo pear planting bases provide a scientific basis, in order to optimize the agricultural structure, rational use of land resources. Through systematic study main results obtained are as follows:1. Using a combination of subjective and objective methods, the impact of Nanguo pear quality an important factor,including:Mg, Fe, Ca, V, Co, Mn element content, fruit titratable acidity, pectinase activity and volatile oil content, as well as the total South pear fruit sugar fructose ratio were determined.2. By further study on basic geological conditions, soil and bed rock and comparing with, the primary target elements(Mg, Fe, Mn) and bedrock type affecting Nanguo pear-quality were confirmed,and the quality planting zone target element content rule for Nanguo pear agricultural unit to provide the basis of geological suitability was also determined.3. Through the study of Nanguo pear growing Eeo-geo-environment initially, the best temperature, topography and soil types of Nangou pear growth were identified.4. On the basic of summarizing and processing the data of econological-geological field of origin, the eco-geological field model of high-quality Nanguo pear Suitable growth was established.