| 1. | Effect of water deficiency on growth and metabolization of some matter of cucumber in solar greenhouse
水分亏缺逆境对温室黄瓜生长及有关物质代谢的影响 |
| 2. | It was well known that water deficiency had become a critical ecological problem , and it was worse in china
水资源短缺已经成为一个严重的生态问题，我国的水危害尤为严重。 |
| 3. | A minor water deficiency can lead to headaches , sleepiness , and moodiness , while prolonged dehydration can cause high blood pressure and other serious problems
轻微的水分不足会导致头痛、嗜睡和情绪低落；而长期脱水则会造成高血压和其它严重问题。 |
| 4. | The maximum influence of drought stage upon rice yield is the jointing - booting stage ; the second influence stage is earing stage and the suitable water deficiency in tillering and filling stage can ' t bring tremendous effects on yield of rice
不同阶段的不同程度受旱对水稻生长发育的影响不尽相同，相同程度受旱对产量影响最大的阶段为拔节孕穗期；抽穗开花期次之，在分蘖期和灌浆期实施一定程度的水分亏缺不会对产量构成较大影响。 |
| 5. | According to " forestland steady moisture capacity " , water deficiency in the former is only in surface and recovers timely after rain season . but in artificial forestland , there is an apparent shortage especially in deep layer , so it affects growth and development of vegetation
以“林地稳定持水量”为依据，天然林地水分亏缺不严重，只在浅层形成了轻度亏缺，并在雨季后能得到及时的恢复；同时这种亏缺并没有影响到了天然植被的发育与演替。 |
| 6. | 2 the comparisons between soil water deficiency in natural and artificial forest land show that : ( 1 ) the concept of " forestland steady moisture capacity " is presented and defined as the lowest soil water content that can not affect the forest regular growth primarily and cause inverse succession in community
2天然林地和人工林地土壤水分亏缺状况对比： ( 1 )提出了“林地土壤稳定持水量”的概念，初步定义为“不会影响到林分正常生长、发育，不会导致群落产生逆向演替所需的最低土壤含水量” 。 |
| 7. | Grains adopt traditional technology which utilization efficiency is low , wheres economical crops adopt modern technology which utilization efficiency is high commonly . the level of water deficiency will impact survey farmers " choice of water - saving irrigation technology . the factors of water price and government support will affect economical crops " technology choice remarkably , wheres these fators have no effect on grains " technology choice nearly
( 3 )村经济发展水平对村节水灌溉技术采用有直接的影响；在水资源供给量和节水灌溉技术资金投入有限的条件下，应优先考虑对经济作物采用先进的节水灌溉技术；粮食作物一般采用水利用率较低的传统技术，而经济作物一般采用水利用率较高的现代技术；水资源短缺程度会影响农户灌溉技术的选择；水价和是否有政府扶持对经济作物灌溉技术选择有显著的影响，而这两个因素对粮食作物灌溉技术选择几乎没有影响。 |
| 8. | Based on the above studies . the different programs on how to use the rainwater resources efficiently is developed . which is decided by the water deficiency amount for agricultural production . a series of measures have been put forword . first , different geological regio should take different methods . second . the rainwater utilization through collection and storage projects or through reduction in evaportranspiration and increasion in infiltration should be combinated organically . third , the high efficiency of rainwater ' s utilization should be attained . therefore , water resources crisis can be alleivated efficiently and the agriculture sustainable development can be improved in baoding area
通过对典型年实测资料的分析，较深入研究了不同作物对雨水资源的利用效率及其影响因素。本文提出了根据缺水量等级决定的雨水资源利用方案的技术思路，因地制宜的提出了平原区以覆盖抑制蒸发利用和雨水富集叠加利用为主的雨水资源高效利用措施，保定山区以就地拦蓄入渗利用利雨水富集叠加利用为主的雨水资源高效利用措施。 |
| 9. | From the point of view of risk , a index system of risk assessment of winter wheat losses caused by drought was established , including the meanings , token models and estimate methods of risk index of natural water deficiency rate , risk index of yield reduction rate and trending vector coefficient of disaster resistance capability , then on the base of these indices , the comprehensive risk index model of losses caused by drought was established and regionalized . the results indicated : the high risk region included the middle north of shanxi , some of middle of shaanxi and some of hebei in east ; the higher risk region included some of middle of shaanxi , the tangshan region and some of west of hebei ; the moderate risk region included the middle of s
从风险的角度，建立了冬小麦干旱灾损风险评估的指标体系，包括自然水分亏缺率风险指数、减产率风险指数和抗灾性能趋势向量系数的意义、表征模式和估算技术方法，在此基础上构建了灾损综合风险模型，并对模型参数区域化，结果表明：冬小麦干旱灾损高风险区在陕西中北部、山西中部的部分地区和河北沧州的部分地区；较高风险区在山西中部的部分地区、河北的唐山地区和西部的部分地区；中风险区在陕西中部、山西南部、河北沧州的大部分地区；低风险区在陕西中南部、河南中北部、北京市、天津市、河北中南部和山东省。 |
| 10. | The changes of leaf water potential , water deficiency , water - holding ability under drought stress conditions were measured . the water parameters were calculated by using pressure - volume technique , also the abilities of maintaining turgor and adjusting osmotic potential of the four species were comprehensively evaluated . the effects of drought stress on photosynthesis , transpiration and water use efficiency were studied
研究干旱胁迫下叶水势、叶水分饱和亏缺及叶保水力的变化；应用压力室和pv技术测定四个树种多项水分参数，并对四树种渗透调节和维持膨压能力进行综合评定；研究干旱胁迫对光合作用、蒸腾作用及水分利用效率的影响；测定生长指标及水分胁迫下苗木的生物量分配。 |
