| Our country is a nation with many persons with little land. The farmland spare resources are in short, and the person and ground's antinomy is outstanding.Land consolidation is an important content of the agricultural infrastructure construction. It is a valid measure to raise land quality, increase valid farmland and make the dynamic equilibrium of the farmland's total amount. It is also one of the important measures to enhance the level of intensified utilization of use of land and land resources' optimum disposition.The Yellow River delta is the new land which is produced during the hundred years of deposition of the Yellow River. Its groundwater buries shallow and the mineral degree is high. The underground salt rises to the earth's surface easily, causing soil salinized and the salt alkali wasteland distributes extensively. The area's ecosystem is weak, the land is vast, and it is always the important latent and spare resources area of our country. It is also an important region of land consolidation. But technique and measure of development and consolidation aren't appropriate, causing the further degeneration of the quality of the land. Because the whole land sorting business of our country starts late, the research of development and consolidation of the salinized soil in the Yellow River delta is little, and the concretely carried out projects are still not mature, it is still in the stage of groping now.This paper takes the land consolidation of the salinized soil in the Yellow River delta as a research object. It analyzes the key problems of land consolidation of the salinized soil on the basis of the analysis of land consolidation's domestic state and basic theories .It comes up the essential contents and main orient of land consolidation of the salinized soil in the Yellow River delta. This paper makes the land consolidation planning and design under the guide of the theories above and combining the land consolidation project in Yongan town of Kenli city of Shandong. And it evaluates the social, economic and ecology benefits after the project carried out. It concludes the problems which should be paid attention to during the land consolidation in salinized soil area and puts up measures of land consolidation. This research riches the theories of land consolidation of the salinized soil in the Yellow River delta. And it has guiding and realistic meaning to the practice of land consolidation.The conclusion of the full paper mainly studies as follows:1. Carrying on part neat according to the sandy and salty characteristics alongside the Yellow River delta and thinking of the needs of Washing out salt and decreasing alkali and combining the habit of the farmers in this area.2. According to the farm crop's expecting consuming amount of water during it's growing and this area is belong to seashore plain where the underground water level is high, the mineral degree is high and the salinity degree is also high. The proper adoption is to decrease number of times of infusing water, increase the washing projects .Pressing alkali with the flood, reducing the harmness causing by saline and improving the quality of soil. According to various farm crop water of infuse water rate to carry on correction, after taking to revise of biggest infuse water rate as design infuse water rate, taking 0.45 sign a square rice/second·100 hectares.3.The groundwater salinity of the Yellow River delta changes from 5 g/L to 15 g/L, belonging to a high mineralized degree brine, it can't used for agriculture irrigation and person or livestock to drink, it also can't develop well irrigation. Washing salt to press alkali should be considered while carrying on infusing water.4. The saltinized soil in the Yellow River delta adopts trapezoid cross section, the branch are made of prefab boards. The cross section form of ditch adopts a trapezoid cross section physically according to the local situation, the first advantage is convent to build up, and the other is useful for irrigating salt and drain the water. |
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