Abstract: Based on the landforms in the hilly area of suburbs,the landscape of eco-agricultural tourism should be designed according to the degrees of slope and contour line of hills in order to develop a water-conserving forest on the tops,a peach tree covering on the upper slope section,a loquats tree covering in the middle slope section,a covering of special fruit trees and melons and vegetables on the lower slope section,and a special water area at the bottom.The model of vertical eco-landscape could bring in efficiency of landscape and ecology.In the experimental area,the vegetation coverage was increased and the biodiversity was restored.The landscape forests helped to lower the air and soil temperature,and the daily temperature changes decreased while the relative humidity increased.The good effects increased in the order of crops field,water-conserving forest and fruit tree forest.Wildly growing-grass and man-planted herbage in orchards could improve the relative humidity in the air,reduce air and soil temperature,lower the daily changes of temperature and conserve water and soil.

Key words: Pest, Natural enemy, Jujube orchard, Community succession, Interaction