Investigation And Grading Of Soil Fertility Of Cultivated Land In Jishan County

Our country there is a serious problem of lack of arable land resources, the contradiction between the vaarious regions very prominent people and land, it is because the quantity and quality of cultivated land determines many areas of agricultural production and the level of rural life, for many areas, the land resources also determines the sustainable development of local society and economy, and therefore, for research and analysis and evaluation of cultivated land resources is very important.In this paper, Jishan County, Shanxi Province as the main research areas of arable land on the basis of an extensive collection of local data on the basis of soil fertility and soil type distribution of the situation carried out a detailed investigation and analysis, while the main soil types Jishan County and the area carried out a detailed analysis, the main results are as follows:From the survey results, including cinnamon Jishan County Soil and Chao Soil two categories, Datu classes at two total leached cinnamon, cinnamon soil, calcareous, from soil, Chao soil five sub-categories. According to the survey results, the Jishan County farmland is divided into nine levels, level ground mainly in the Fen River floodplains and terraces level,3.71% of the total area; two distributed in South Fen Hirakawa second terrace area and the Fen edge of the first terrace area,8.45% of the total area; three distributed caicun, sun, zhaidian, millet peak, 15.71% of the total area; four distributed in the north and south wall II terraces,5.18% of the total area; five distributed on Qinghe town, Cai Village secondary terraces and west, the town, the town of the valley alluvial fan,6% central, the total area; six places distribution level terrace with two terraces junction gully area,9.43% of the total area; distributed in the seven towns of the valley alluvial fan, central and parts of two terraces and inclined plains south Fen, accounting 21.32% of the total area; eight place mainly in the hilly and mountainous areas low in most areas, and 28.73% portion of the ditch, the total area; distributed in nine hills and in mountainous area in the edge region, the total area of 1.46%.