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The results showed that it adapted to saltmorphic circumstances through the following characters: A lot of aerenchyma existed in the vegetative organs;Phellem highly expanded in roots;thick cuticula;more mucilage cells and aleurone grains in parenchyma of roots and stems;A lot of water storing...

结果表明,不同生态环境中生长的马齿苋解剖结构显著不同,盐生马齿苋具有适应盐渍环境的结构特征,这些特征表现为:营养器官通气组织发达;根的次生结构中木栓发达;根、茎的薄壁组织中含有大量的黏液细胞和糊粉粒;叶片表皮的角质膜厚;叶肉中含晶细胞、叶绿体及贮水组织丰富;而这些特征是黑土地上生长的马齿苋所不具备的。

In order to research deeply the physiological mechanism of Lycium barbarum L. adapting to salinized land, distribution of three kinds of salty ions in its different vegetative organs and the effect of tree age on salt content were studied.

为了探明盐地枸杞适应盐渍生境的生理机制,以盐碱地种植的枸杞为试材,研究了不同营养器官中3种盐离子的分布特征以及树龄对盐离子含量的影响。

Analyzed the salt content and degree of mineralization of ground water of plough level in the irrigated area where in the east of Hebei, according to different standard to divide the rice belt into suitable district, halophytic vegetation district, salt-tolerant crop district and dry crop district, then it proposed relevant planting technique and assorted technical measure.

分析了冀东滦下灌区四县稻田土壤耕层的全盐含量和地下水矿化度,并依据我国盐渍土壤划分标准和不同作物的耐盐能力,将该稻区划分为宜稻区、盐生植物种植区、耐盐作物种植区和大田旱作物种植区,并提出了各个区域的种植技术方案及配套的工程技术措施。

Correlation analysis showed that: medicago sativa various physiological indicators and the application of gypsum both have a good correlation, so gypsum on the coastal saline soil in the development and use of a very important role and significance.

相关性分析表明:苜蓿各项生理指标与脱硫石膏的施入量均有很好的相关性,因此脱硫石膏对滨海盐渍土的开发和利用有很重要的作用和意义。

Though the comparison between the experimental group and the control group, it was proved that planting Tamarix chinensis on the saline soil not only could increase the number of the soil micro-organisms, but also could increase the volume of air, the content of organic matter, and lower the pH value, increase in ornamental.

通过将实验组与对照组的比较,分析得出在滨海盐渍土上栽植柽柳不但可增加土壤中微生物的含量,而且可增加土壤中的空气和有机质的含量,提高土壤颗粒的贮水能力,还可降低土壤的pH值,增加观赏性。

Once the characteristics for surviving salty soil are known, Flowers and Yeo will try to breed the appropriate genes into all manners of crops and plants.

一旦特点,为幸存的盐渍土是众所周知的,鲜花和杨荣文将努力培育合适的基因都礼貌的庄稼和植物。

For example, it can be easily stated that this result will play a key role for distinction of saline soil and sandy soil on the satellite images due to the absorption in long spectral bands for lower soil layers of CSS.

例如,它可以很容易地指出,这一结果将起到关键作用的区别盐渍土和沙质土壤上的卫星图像,由于在长期的吸收谱带较低土层的CSS 。

Dead Sea, A salt lake, about 397 m (1,300 ft) below sea level, between alestine and Jordan. It is one of the saltiest bodies of water known and is the lowest point on the earth.

死海:位于巴勒斯坦和约旦之间的一个盐渍湖,约低于海平线397米,它是目前所知的最咸的水体和地球上的最低点

It is suggested that policy should be on the basis of minimum irrigation, soil mulching and straw and manure utilization, and the leading one of its measures should be to use high-salined groundwater as an accompaniment of river water, by the integration of the power-pumped-Yellow-River irrigation system and well-water irrigation system, to lower the watertable and reduce the irrigation cost. Thus the dynamic balance of salts, as well as the prevention and reclamation of salinization, will have been kept through the management of water and soil organic matter.

在此基础上结合国内外盐渍化防治及盐渍土改良利用方面的发展趋势,笔者提出应该以水盐平衡理论为指导,以节水灌溉为前提,以地面覆盖和土壤培肥为基础,以井排系统与引黄灌水系统并网,井渠混灌,降低地下水位为突破口,通过对水分和肥力的调控和管理达到对盐分的调控和管理,使盐分在土体或灌区实现动态平衡,从而达到土壤盐渍化的预防和治理。

There are thinks the double features of saline and alkaline for the formation and evolutionprocess of the salinization soils in this region,the generation intensity and scale are related withgeomorphological types,shallow water geochemical types,shallow water table and soil structureetc.,presents the quantity relationship between the salinization degree of the soils,shallow watertable and mineralization,expounds the four stage and seasonal succession features of slattransference and inversion,discuss the interaction between ions in shallow water and soils and thethe regularity of the salt transference and accumulation under freeze-thaw action.

本文在野外调查、监测及实验研究的基础上提出松嫩平原盐渍土的形成过程存在盐化与碱化双重作用,其发生强度和规模与地貌、潜水类型、径流条件、潜水水位、土壤结构有关,提取出潜水埋深、矿化度与土壤盐渍化程度关系的定量指标,以及土壤盐分迁移转化季节性变化的四个阶段及其特征。同时重点研究了潜水与土壤之间元素交互作用及冻融作用下盐分迁移和聚积规律,为土壤次生盐渍化的防治提供了理伦依据和技术支撑。

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