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Study on the Cost-benefit of Soil Reconstruction in Land Consolidation

Author: LiBing
Tutor: LiXinJu
School: Shandong Agricultural University
Course: Management of land resources
Keywords: Land Consolidation Topsoil stripping and backfilling Costing Benefit Analysis
CLC: F301.2
Type: Master's thesis
Year: 2011
Downloads: 113
Quote: 0
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Abstract


The conventional land consolidation and protection of topsoil and soil reconstruction aspects, mostly push up pads low land formation. Topsoil is the maturation by farming topsoil. The average thickness of 20cm ~ 50cm, nutrient content rich, the most intensive crop roots into a granular form of pellets, or chunky structure. The topsoil is a the cropping layer formed after long years of tillage and fertilization management, topsoil plays a vital role in the growth of the crop. Topsoil protection and utilization of land consolidation process in the core areas related to the comprehensive benefits of soil in land consolidation. No the topsoil stripping backfill the land consolidation project, after finishing the land has to go through several years of recovery in order to achieve the level of quality before finishing. Xintai City fruit are selected, the provincial key land consolidation project in West Zhangzhuang Area topsoil utilization and protection of research in the study of land consolidation project. The study results show that: (1) conventional land consolidation land formation process, push up pad the low construction technology leveling the land, the surface maturation soil is turned to the bottom, the underlying adobe is turned to the surface. The surface mellow soil and the underlying adobe mixed, resulting in the surface soil bulk density increases in land consolidation, reduced organic matter content, soil microbial activity decreased, decline in soil quality. Decline in the first year of wheat yield per mu land consolidation 46.72kg, corn yield per mu decline 59.69kg, the second year of decline in wheat yield per mu 28.02kg and 36.98kg decline in corn yield per mu. (2) The combination of rugged plain areas the small plots rules, large area. Select sub plots-topsoil stripping backfill, The Land Consolidation construction technology piling of topsoil middle remodeling construction process of the soil in the plain areas of land consolidation. The undulating hilly region plots, plots irregular and the small size of features. Select the strip down topsoil stripping backfill push, the topsoil by Taiwan down the the topsoil the progressive replacement construction process for reconfigurable construction process of the soil in the hilly area of ??land consolidation. (3) in the study area, select A, B two plots. The sub-plots were strip down push the topsoil stripping backfill construction technology, calculate the the topsoil stripping backfill the cost. Plots A, sub-plots the topsoil stripping backfill construction technology, the average per acre the topsoil stripping backfill costs 129.79 yuan; the plots B bands push down the topsoil stripping backfill construction process, the average per acre land topsoil stripping The cost of 135.98 yuan. (4) 2009-2010 the test plots A 1 , A 2 A 3 , the B 11 , B 21 , B 31 on according to the test area of ??agricultural cultivation habits mainly selected two crops of wheat and corn planting trials. Namely wheat and maize cropping patterns. And select the C 1 C 2 C 3 ; W 1 the W 2 < / sub>, W 3 ; D 1 , D 2 , D 3 ; W 4 < / sub>, W 5 , W 6 four types of plots annual crop yield per mu crop control. The following conclusions: finishing sorted increase effective than conventional land plots of land in 2009 and 2010 points, respectively, for an annual average of 128.88 yuan per mu, 47.42; Slitting with inverted push land consolidation finishing than conventional land increase, respectively, effective 112.76 yuan, 41.49 yuan per mu. Average per acre cost of the sub-plots topsoil stripping backfill cost 129.79 yuan, strip down push the topsoil stripping backfill costs the average per acre cost of 135.98 yuan, shows that the cost of the topsoil stripping backfill increase within two years after finishing can recovered.

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CLC: > Economic > Agricultural economy > Agricultural economic theory > Land Economics > Land management, planning and
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