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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >New drainage technologies for salt-affected waterlogged areas of southwest Punjab, India
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New drainage technologies for salt-affected waterlogged areas of southwest Punjab, India

机译：印度旁遮普西南部受盐害的涝灾地区的新排水技术

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摘要

New drainage techniques, viz. multiple well-point system, conjunctive use of canal water (CW) and poor quality groundwater, biodrainage and conventional drainage system, were conceived, developed, demonstrated and adopted by a large number of farmers in the salt-affected waterlogged areas of southwest Punjab. The multiple well-point system constitutes a number of well points installed in a line connected with each other at about 1 m below land surface, pumped or siphoned centrally. Different treatments using CW and tubewell water (TW) were applied in various sequences to irrigate sodic soils. The performance and improvement in soil characteristics and grain yield under irrigation treatment using CW only and cyclic use of two CW (2CW) followed by one TW (1TW) were compared. The biodrainage system consists of raised bunds covered with polythene sheet buried at about 15 cm below soil surface on which eucalyptus plants were planted after applying soil amendments farm yard manure, etc. Presence of polythene sheet prevented capillary salinization. The drainage studies were also carried out for planning, design and installation of subsurface drainage system (SSDS) for the 787 ha area of Muktsar district. The SSDS was laid using a drain laying machine in 160 ha area of Jamuana village in Muktsar district.
机译：新的排水技术，即。在旁遮普西南部受盐害的涝灾地区，大量农民构想，开发，示范和采用了多种井口系统，运河水（CW）和劣质地下水的联合使用，生物排水和常规排水系统。多井点系统由许多井点组成，这些井点安装在地面以下约1 m处相互连接的管线中，在中央抽水或抽水。使用连续水和管井水（TW）的不同处理方法以各种顺序灌溉钠盐土壤。比较了仅使用连续水进行灌溉处理和循环使用两个连续水（2CW）和一个连续水（1TW）后土壤性能和谷物产量的改善情况。生物排水系统由覆盖在土壤表层以下约15厘米处的聚乙烯薄片覆盖的凸起的外滩组成，在施用土壤改良剂后，在其上种植桉树等。聚乙烯薄片的存在可防止毛细管盐渍化。还对Muktsar区787公顷的地下排水系统（SSDS）进行了规划，设计和安装的排水研究。 SSDS是使用排水机在Muktsar区Jamuana村的160公顷土地上铺设的。

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