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The absorbance and transmittance spectra of fresh leaves were increased with the decreasing mesophyll water content.

新鲜甘薯叶片中的水分含量减少,使吸收光谱增加,但经脱色处理后,吸收光谱因水分含量增加而上升。

Because of the regional difference of soil and climatic conditions, the division of 4 stages of soil moisture circulation is not all the same between different areas; the soil moisture dynamics between different dry farming areas in the Yellow River Basin is contrasted in this report. The results indicate that soil moisture increases gradually from dry semi-arid area to semi-arid area, dry semi-humid area and semi-humid area, and the high value district generally appears during soil moisture resuming period in rainy season or soil melting period. While the low value district appears at the stage of fast evaporation in spring or slow evaporation in autumn; in views of vertical changes of soil moisture, it is showed that the variation range of upper lays is larger than that of lower among the different dry farming areas in the Yellow River Basin.

由于各区域之间土壤、气候条件的差异,各地土壤水分循环4个阶段的划分也不尽相同;黄河流域不同旱作类型区土壤水分动态变化比较结果表明:就季节变化而言(来源:A70b0B0bC论文网www.abclunwen.com),由半干旱偏旱区→半干旱区→半湿润偏旱区→半湿润区土壤水分含量呈逐渐增加的变化趋势,而且高值区一般出现在雨季恢复阶段或春季土壤融冻返浆时期;而低值区均出现在春季大量蒸发阶段或秋季缓慢蒸发阶段;就垂直变化而言,黄河流域不同旱作类型区土壤水分垂直变化的趋势均表现为上层变化幅度较下层大。

Based on field experiment and measure data, ecological characteristics of soil water in different fencing sandy land in arid desert area and vegetation restoration effect of soil water variation in fencing sandy land were analyzed. In representation of Artemisa arenaria DC population, observing and researching vegetable restoration effect of soil water variation in fencing sandy land. The results indicate as follow:(1)With the vegetation development constantly in fencing sandy land, soil water utilization of vegetation increased. It made soil water content and soil water storage reduced with the increase of fencing time in sandy land.

本文通过野外实验测定数据,分析研究了干旱荒漠区不同类型封育沙地土壤水分生态特征,以及封育沙地土壤水分变化对植被恢复的影响,并以当地沙蒿种群为代表,观测研究封育沙地土壤水分变化对植被恢复的影响,结果表明:(1)封育沙地随着植被的不断生长,植被对土壤水分的利用也有所增加,从而使沙地土壤含水量和储水量随封育时间的加长而表现为一定的降低趋势。

The main function of sucrose is to maintain normal respiration, so it can only be used to join the preservative, and make a good effect in maintaining the water balance of Dianthus Caryophyllus when dealing with 0.01% Phytic Acid +2% S +200 mg/L8-HQC solution; Finally, in the mensuration of Dianthus Caryophyllus fresh weight change, no matter using which the vase planting solution, the fresh weight of Dianthus Caryophyllus increases in the initial phase and then gradually decreases.

结果表明:在花径变化的测定中,经0.01%植酸+2%S+200mg/L8-HQC溶液处理的香石竹在保鲜期间得到最好的保鲜效果,切花的生长状况达到最佳状态;在水分平衡的测定中,结果表明蔗糖溶液对香石竹的水分平衡的保持有负作用,蔗糖的作用主要作用是维持正常的呼吸作用,因此它只能用来加入到保鲜剂中,处理0.01%植酸+2%S+200mg/L8-HQC在保持切花的水分平衡上起到较好的效果;最后在香石竹的鲜重变化测定中,无论什么瓶插液,香石竹切花的鲜重在初期阶段增加,然后逐渐减少,水分的吸收与丧失会有波动,但总趋势是失水量大于吸水量。

In this experiment, we found the water of wheat leaves increase 0.6%~3.06 % for wet weigh and 17%~99.73 % for dry weigh,The oppositely containing the water increase 0.24%~3.42 %, The water saturation decrease 0.24%~3.39 %.The resulte of the leaves of corn is similar with wheat. it indicates that treat with extracts of peganum harmala could enhance the drought resist ability of wheat and corn.

试验结果表明,凡种子经过处理后,小麦叶片水分占鲜重的量增加了0.6%~3.06 %,占干重的量增加了17%~99.73 %,相对含水量增加了0.24%~3.42 %,而水分饱和度降低了0.24%~3.39 %;玉米处理结果与其一致,表明浸种处理具有增强作物抗旱性的生理效应。

Soil moisture increased with soil depth in Udic ferrosol profile, providing possibility of synergistic utilization of soil water in agro-forest cropping system.

红壤水分含量随土壤深度而增加为农林间作的水分协同利用提供了可能。但土壤水分动态结果表明农林间作不会改善表层土壤水分状况。

So that the osmotic stresses were decreased and it provided the basis on water purveying in plants.(2) Under the condition of salt stress, inoculating Gl. versiforme could improve the photosynthetic physiological characters of winegrape.

在水分生理效应方面,接种植株根系活性增强、水势降低,叶片维持了相对较高的水分蒸腾代谢水平,增加了酿酒葡萄植株根系水分吸收动力,最终表现出植体内水分含量的相对升高。

In 0-100cm soil depth, the soil moisture in 50-100 cm depth under subsoiling were higher compared with no-tillage, which increased when it was dry and scarce in rain and decreased when it was rainy with soil depth increasing.

在0~100cm的土层剖面上,50~100cm土壤水分含量深松显著高于对照,干旱少雨时,土壤水分含量随土层深度增加而增加;降雨集中时,随土层深度增加而减少。

The results show that the pressure of SF6 gas, the tank of circuit breakers has no apparent influence on the relationship between the environmental temperature and moisture in SF6 gas but the moisture measured in 20℃ and solid materials in circuit breakers, especially F-3 adsorbent do influence the relationship greatly.

结果表明,SF6气体压力、断路器罐体大小对环境温度与SF6气体中水分含量间关系无显著影响。20℃时SF6气体中起始水分含量对环境温度与SF6气体中水分含量间关系影响较大,起始水分含量越高,SF6气体水分含量随环境温度升高而增加越快。

3In four water conditions, three turfgrass water use efficiency with the increase of soil moisture gradient became smaller. Kentucky bluegrass, the highest water use efficiency.

3在4种水分条件下,三种草坪草的水分利用率随着水分梯度的增加逐渐变小,草地早熟禾的水分利用率最高。

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