水分

The water-saving technologies in field are researched and concerned relatively weak,especially in the water deficit conditions,how to utilize the synthesis effects of water and fertilizer,increase the efficient utilization of soil water in saline soil,which are researched unprofound,the mechanism unclear,cant adapt the time requirements of agricultural water-saving.

田间节水技术的关注与研究相对薄弱，特别是在水分亏缺条件下，如何利用水肥综合效应，提高盐渍化土壤田间水分的高效利用率的研究还不深入，机理不清，不能适应农业节水的时代要求。

The middle and lower parts of woodland and grassland had higher soil water contents during rainy season, which resulted from smaller evapotranspiration and more infiltrated water with a lower gradient. However, upslope runoff infiltration was another reason for hillslope with a lower cover ratio, such as bare land.

雨季林草地坡中下部土壤水分含量较高的原因，可能主要与其蒸散较小且坡度较缓导致入渗水量较多有关；但是对于植被覆盖度较低的坡地，坡中下部土壤水分含量较高还与上方来水有较大的关系。

In the two test sites, the soil water movement numerical models of vertical-one-dimension and cross section two-dimension have been established with the softwarer Vadose/W and self-programming code, of which the advantage is that it can deals with lower boundary and the upper boundary (such as meteorologic, vegetational, etc) conditions in convenience. The fitting between the model and observation data from sites indicates that the models are relatively high precision. So the models can be used to study problems such as soil evaporation, infiltration to recharge groundwater and so on under various conditions.

运用包气带水分运移软件Vadose/W和自编程序，建立了两个试验场垂向一维和剖面二维土壤水运移模型，该模型的优势在于可灵活地处理下边界和上边界条件，试验场观测数据拟合表明模型精度较高，可用于研究各种条件下土壤蒸发、土壤水分下渗补给地下水等问题。

From seeding to florescence phase, water consumptions of potato of Wote15, Wote30, PAM15 and PAM30 were significantly lower than that in CK. From seeding to harvest phase, water consumption of potato of all treatments had no difference with that in CK. In florescence and harvest phase, water use efficiency and water output rate of Wote and PAM treatments were super significantly higher than that in CK.

从播种到花期沃特、PAM穴施用量15和30 kg/hm2处理的耗水量显著低于对照，从播种到收获期不同处理的耗水量与对照无显著差异，但花期、收获期不同处理的水分利用率和水分产出率均极显著高于对照。

Xeromorphic structure reflected tree top leaves with stronger adaptability to water stress,and suggested that they were under water stress condition.

上部叶片趋于旱生型的形态解剖结构特征反映出了其在结构上具有较强的适应水分胁迫的能力，证实其遭受了水分胁迫。

Parviflora in shrub communities had the xeromorphic traits in the aspects of ① their secondary xylem had shorter vessel elements, higher vessel frequency, less single porous percentage, lower rays, higher relative conductivity and lower vulnerability index, and ② their leaf had lower water potential, lower water content and free water content, higher bound water content, high ratio of bound to free water content, and less specific leaf area.

扁担木叶片、次生木质部的解剖和水分生理特征均表现出一定的可塑性，其可塑性指数高低顺序为次生木质部解剖特征（0、24）〉水分生理特征（0.19）〉叶片解剖特征（0.18）、与侧柏林和混交林相比，灌丛中扁担木个体对干旱生境有一定的适应能力，表现在次生木质部导管分子短，导管频率高，单孔率低，木纤维短，射线矮小，具有较大的相对输导率和较小的脆性指数；叶片水势、组织含水量、自由水含量较低，叶面积、比叶面积较小，而束缚水含量、束缚水自由水比值较高。

Responses of Larrea tridentat seed germination to water stres s were studied by means of the artificial simulation method of water stress by using PEG to find out the g ermination characteristic amply and to understand the drought resistance characteristic of L.tridentata roundly.

为了深入了解 Larrea tridentata 的发芽特性，全面掌握 Larrea 的抗旱生理特性，采用PEG溶液人工模拟水分胁迫的方法，研究了 L.tridentata种子萌芽对水分胁迫反应过程。

In order to evaluate the effect of different tillage types on soil moisture,the paper analyses the temporal and spatial variations of soil moisture under plough tillage and no-tillage.

为了揭示农牧交错地区不同农田耕作方式对其水分环境的影响过程及规律，选择翻耕地和免耕地两种土地耕作类型，分析不同耕作方式下土壤水分的时空变化情况。

The rate of wetting front advance and infiltration rate under certain ponded infiltration was significantly reduced by Sodium Polyacrylate , and as a result effectively reduced water in a sandy soil leaking to a deeper layer under the plough layer.

砂土的饱和导水率随着高分子化合物聚丙烯酸钠用量增加而降低，在恒定水头入渗条件下，聚丙烯酸钠降低了水分向深层运移的速度，同时降低了砂土的入渗速率，可以有效降低砂土水分的深层渗漏。

The results showed that The ratio of the compositions of the two extracts are different, and the extract rate of the main chemical substances are high in extract decocted together than in extract decocted single.

结果表明，加醇合煎、水合煎、水分煎的提取物均未发现明显新峰，但三者各共有峰相对积分面积存在差异，加醇合煎和水合煎提取物中主要化学成分的提取率大于水分煎提取物，且共有化学成分的比例也不同。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。