渍害低产农田的研究，长期以来是人们十分关注的问题。
It has long been concerned much to study the low yielding swamped farmlands.
湿害(渍害和涝害)是旱作物生产中时常发生的自然灾害。
Waterlogging can be a frequent natural calamity for drought crop productions.
界定了涝渍地的概念，指出了涝渍地与渍害田、湿地的联系与区别。
A definition of waterlogged land was given, and the connection and distinction between waterlogged land and cropland vulnerable to waterlogging, and wetland were pointed out.
因此开展洪涝预报和渍害治理至为重要，而降雨径流计算是其首要解决的问题。
In view of the above mentioned facts, it is very important to develop flood forecasting and waterlogging harnessing. while rainfall-runoff calculation is the kernel to solve these problems.
在各种自然灾害中，洪、涝、渍害是主要灾害之一，受害面积广，出现频率高。
Among various natural disasters, the flood and water-logging is the primary disaster, because its great regions were suffered and occurred frequently.
低洼涝渍田和粘闭滞渍田是渍害土壤的主要类型，约占全市低产田总面积的80％。
The waterlogged lowland and clay salinized land accounted for 80% of the area′s low yield farmland.
河水位对堤内地下水有重要的影响，且河水向二岸的侧渗常导致堤内排水困难，使农作物遭受渍害。
The groundwater is influenced severely by the river level and the river infiltration often causes in difficulties of drains and makes the crops along the riverside suffer from subwaterlogging.
河水位对堤内地下水有重要的影响，且河水向二岸的侧渗常导致堤内排水困难，使农作物遭受渍害。
The groundwater is influenced severely by the river level and the river infiltration often causes in difficulties of drains and makes the crops along the riverside suffer from subwaterlogging.
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