| 1. | Prevent secondary salinization in songnen plain 松嫩平原稻区防止次生盐渍化的研究 |
| 2. | Secondary salinization of soil is an important factor limiting the greenhouse cropping system 设施土壤次生盐渍化是我国设施农业生产中的一个重要限制因子。 |
| 3. | Secondary salinization of soil is an important factor limiting the greenhouse cropping system 摘要设施土壤次生盐渍化是我国设施农业生产中的一个重要限制因子。 |
| 4. | Prevention of soil secondary salinization by turning upland cropland into paddy fields in depressions of the songneng plain 松嫩平原低平易涝地旱改水种稻治涝防止土壤次生盐渍化技术的研究 |
| 5. | The prevention and suggestion is brought up , it is important for a good drain system for preventing soil secondary salinization , it can lowerer the underground water lever and ejecter the soil salt in order to adapt to douche and drain 为了防止土壤次生盐渍化,良好的排水系统是非常重要的,它可以降低地下水位和排出土壤盐分,做到灌排配套。 |
| 6. | 7 topography and land use are main factors affecting the change of groundwater table , then influencing the redistribution of soil moisture and salinity . soil secondary salinization can be considered as the main factors that influence the stability of new oasis in alluvial plain 7 、地形和土地利用是影响阜康荒漠绿洲地下水位变化的关键因素,而地下水位的连续变化又影响了土壤水盐在空间上的分布。 |
| 7. | In recent years , such problems as the extension and application of on - film irrigation , reclamation of salinized soils , and prevention of secondary salinization have made it important to study coupled movement of soil water , salt and heat transfer under plastic mulch in arid and semi - arid areas 近年来覆膜灌溉的推广应用、盐碱地开发和改良以及土壤次生盐碱化防治等问题使得研究西北干旱-半干旱地区覆膜条件下土壤水、盐、热耦合迁移规律成为重要课题。 |