There exists a multi linearship between the stem sap flow velocity and the soil moisture, soil water potential.
油松树干液流速率与土壤容积含水量和土壤水势呈明显线性相关关系。
Data from experiments carried out in peach field were analyzed and the patterns of soil water potential variation described.
主要从试验观测资料入手，首先讨论了桃树各处理的土水势的情况。
And the transpiration rate, organ water potential, photosynthesis rate, growth rate will decrease with the fall of soil water potential.
数值分析还表明当土壤水势逐步下降时，蒸腾速率、组织水势、光合速率、生长速率都不断下降。
According to the differences of soil water potential in the farmland, variable irrigation can save water as well as raise economic benefit.
依据农田内土壤含水率的差异性，有针对性地进行变量灌溉，既可节约用水又可提高经济效益。
The relationships between soil water potential and leaf water potential, and those between leaf water potential and photosynthesis were studied.
同时也分析了土水势和叶水势的关系，叶水势与光合作用的关系等。
Soil water potential increased with the increase of the soil temperature and this showed that the effect of temperature on water potential of soil was positive.
随土壤温度升高土壤水势增大，显示温度对田间土壤水势的正效应，且高肥力的正效应大于低肥力。温度对小麦叶水势具有显著负效应，即小麦叶水势随气温升高而降低。
The photosynthetic rate of the leaves declined with the decrease of soil water potential, but drought-resistant varieties reduced less than drought-sensitive ones.
叶片光合速率随土水势的下降而减小，抗旱性品种减小的幅度小于抗旱性较差的品种。
The model can predict not only the soil water dynamic profiles and the soil water potential profiles, but the changes of the effective root density with depth and time.
该模型除能预报根系吸水的一些水分动态和水势动态外，还能预报有效根密度的时空变化。
The impacts of climate on potential evapotranspiration and soil water content under 2080's climatic condition were simulated with the model.
还利用建立的模型，模拟了2080年的气候条件变化对潜在蒸散量和土壤水分含量的影响。
The effects of irrigation frequency and soil matric potential on potato growth and water use efficiency(WUE) under drip irrigation in North China were studied.
研究了滴灌灌溉频率和土壤水势对马铃薯生长和水分利用效率的影响。
The strain excess pore water pressure is a response of the residual strain potential coupled with the skeleton of soil.
应变超孔隙水压力是上耦合于骨架剩余应变势的反映。
In control condition of the growth chamber analyzing the influence of inoculum density, soil water matric potential and soil temperature on mortality of pepper caused by p.
在生长箱内控制条件下分析测定了接种体密度、土壤水分基质势和土壤温度对辣椒疫病死苗率的影响。
The rainfall erosivity can suggest the potential effect of rainfall on soil erosion. It is necessary to develop the water erosion model.
降雨侵蚀力反映了降雨对土壤侵蚀影响的潜在能力，它是建立土壤水蚀预报模型的基础。
In addition, plant root can also influence soil structure and water content, so the influence of plant root on the soil potential should not be neglected.
另外由于植物根系影响土壤结构与含水率，所以根系对土壤水势的影响也不可忽略。
Washing fresh produce thoroughly in dilute solution of vinegar or bicarbonate of soda, and then rinsing in clean water will remove most potential contaminants, such as soil and surface residues.
使用稀释过的醋或小苏打水彻底地洗濯蔬菜，然后以清水冲洗，将会除去潜在的污染物，例如泥土和表面残留物。
Sometime the matrix potential of soil water, moisture capacity and the total content of salt capacity in the soil have the same trends of change with depth.
在包气带剖面中，在某时刻水土势、含水量、含盐量随深度变化的趋势相同。
Soil matric potential, leaf water potential and atmosphere water potential is diversity in temporal and spatial variation.
通过相关性分析得出土壤基质势，叶水势，大气水势三者在时间和空间上都有很大的差别。
On the basis of the experimental data in farmland, a function relationship between the potential evapotranspiration and the relative water content of the soil in the root zone was established.
以田间实验资料为基础，建立农田蒸散量和土壤相对含水量与潜在蒸散的函数关系。
A field experiments was conducted to study soil moisture and water potential changes in farmlands with a shallow water table during summer maize and winter wheat seasons.
通过对夏玉米和冬小麦生长季节期间土壤水动态观测试验，探讨了地下水浅埋条件下土壤水动态的变化规律。
The paper probes into the methods of calculating the potential evapouration, and chooses the appropriate method to calculate the soil water content and potential water evapouration.
本文在探讨潜在蒸散量计算方法的基础上，求出孟津县农田潜在蒸散量和土壤含水量；
Water potential reflects energy level of soil water and the gradient of water potential is an impotent factor describing direction and velocity of water flow.
水势反映土壤水的能态，而水势梯度则是决定水流方向和速度的重要因素。
The changing features of the soil water in the lowland around by sand dune are: the frequent changing layer, the potential supplying layer and the relatively stable layer.
丘间低地土壤水分变化特征表现为：水分变化频繁活动层，水分潜在供应层，水分相对稳定层。
The paper probes into the methods of calculating the potential evaporation and gives an appropriate method to calculate soil water content and potential evaporation.
在探讨潜在蒸散量计算方法的基础上，计算出孟津县农田潜在蒸散量和土壤含水量；
The results of simulation showed that: the soil water replenishment and the potential evapotranspiration were different in different slope and aspect conditions.
模拟结果表明：不同坡度、不同坡向条件下的水分分布状况和区域潜在蒸散存在着较大的空间差异性。
Soil moisture curve is elementary curve that shows the relation between potential energy and the content of water soil and analyses retaining and transporting in soil water belt.
土壤水分特征曲线是表征土壤中水的含量与势能之间的关系，是研究包气带土壤水分的保持和运移所用到的基本特性曲线。
Based on the geological background of Guizhou Province, the relationship between the geological conditions and actual soil and water loss and its potential danger was studied.
从地质背景出发，分析贵州省地质条件的区域特征与水土流失现状及潜在危险性的关系。
Also, the optimal temperature range for photosynthesis of Ginkgo leaves was related to the water potential in soil.
银杏光合作用最适温度范围也因土壤水分条件不同而不同。
When soil moisture contents were above 9.5%, there was no apparent change in leaf water potential with a drop in soil moisture contents.
当土壤含水量在9.5％以上时，随土壤含水量的下降叶水势变化不明显。
Relative air humidity is the dominant factor for field pea to affect daily dynamics of leaf water potential, followed by air water potential, soil water suction , air temperature and solar radiation.
影响豌豆叶水势日变化因子中最重要的是大气相对湿度，其次是大气水势、土壤水吸力、大气温度和太阳辐射。
The high yield technique on the rice ridge cultivation were discussed from soil structure, water-thermal regime, oxidation-reduction potential and microorganism activity in paddy soils.
本文从土壤结构、水分、温度、氧化还原电位以及微生物活性等方面分析了水稻半旱栽培技术增产的原因。
应用推荐