Jinan Municipal Environmental Protection Bureau

The quality of tea is closely related to the environment of tea growing area, soil nutrient quality, altitude and climate factors. The use of geographic information system (GIS) can provide guidance for tea garden environment quality and planting area optimization from macroscopic and microcosmic aspects. Based on measured data of soil nutrients, using Geostatistical Analysis and the Kriging interpolation method, it generated the study area with the spatial distribution information of total soil nitrogen, soil organic matter, soil potassium, soil P, K, P, which the tea leaves closely related to. On this basis, it combined with 1:100000 DEM information of Shucheng, established an integrated eco-tea zoning weighted optimal model, and achieved GIS visualization. The results showed that Shucheng eco-tea optimal areas were the hills and mountainous areas in central and western regions along the lake, the western mountain areas were appropriate areas, the eastern plain areas were the general areas.

The wheat precision seeding technology provided an advanced agricultural support for the high yield of wheat. But the lack of effective agricultural machine made this technique difficult to apply widely. In this paper a wheel mobile robot to achieve the wheat precision seeding technology was designed. The kinematic model of the robot was built and simulated. And experimental study was taken under different operating conditions. Because of multiple effort factors, a quadratic orthogonal rotation combination design method was applied in the experiments, identifying the main factors by analysis. Then the field test was carried out according to the main factors. The experiment results showed that the qualified rates of seeding exceed 93% in different sowing speed. That reached the agronomic requirements of wheat precision seeding.

With oil-generating formations in the Dongying basin as the objective of study, this paper deals with the relations among petroporphyrins, lithology, oxidation-reduction conditions, maturation and conversion of organic matter, and burial depth. It is considered that the content of petroporphyrins in the oil-generating formations depends on the quantity and nature of organic matter, sediment ary environment and burial depth. There is a porphyrin-rich interval at 2,200–2,700 m with the corresponding geothermal temperature ranging from 93° to 119°C. It is also an oil-accumulating zone. Nickel in the crude or in the nucleus of petroporphyrin is accumulated during the process of oil generation. Nickel-porphyrin abundance in the oil-generating formations has a negative correlation with the content of nickel. Evaluation of the oil-generating formations has been made on the bosis of petroporphyrin data.