Research On Agroforestry System Environment Effect In Hilly Area Of Western Liaoning Province

In the research, apricot-peanut, apricot-corn, southland pear-peanuts and southland pear-corn of four typical agroforestry ecosystem are taken as the objects of study in hilly region of western Liaoning Province, also picking peanut and corn monoculture as a contrasting study object, through the microclimate inside the compound system of fixed point and fixed observation, study on the composite system of forest environmental factors in different height, different phenological phase change rule, study on the composite system of forest soil temperature in different depth, the change rule of different months and the complex system of forest crops, fruit trees yield and efficiency of land use. The results showed that:Composite patterns of forest in average wind speed were significantly lower than monoculture model, apricot-peanut composite pattern wind energy is better than that of southland pear composite pattern, along with the high ascension, in various systems the wind speed also gradually strengthens. The composite system air temperature are lower than in control mode, low average temperature of 1.5℃ to 2.0℃, With the increase of altitude, the air temperature are gradually reduced in the configuration mode. Similar air humidity and air temperature, with the increase of altitude, air humidity were gradually reduced. With the increase of height, light intensity also gradually enhanced, monoculture model in light intensity are greater than the composite pattern of forest, southland pear composite system within the light intensity is greater than the apricot-peanut composite system, forest light intensity between light intensity were significantly lower than crops.Within the complex system of forest soil temperature were lower than monoculture model, variance analysis showed that, peanut in composite model test time and soil depth of soil temperature had a remarkable effect,9:00、13:00 has differences with other observation time measuring on soil temperature,0-5 cm,5-10 cm soil depth significant differences with other soil layer soil temperature. Corn in composite pattern observation time there were no significant differences on soil temperature, Soil depth of soil temperature had a remarkable effect and occur in the 0-5 cm,5-10 cm depth.Principal component analysis shows that, temperature and moisture are the two dominant factors that affects the system environment factor, in the system the accumulation of temperature and light intensity, air temperature and soil temperature, the three to develop system in air temperature. The accumulation of water system in related to air humidity, the air humidity is external manifestation of water from the system, humidity of the air in the system, the greater the accumulation of moisture.