SPAC

this paper applies the finite element method to water and heat equations in spac system.

应用有限元算法，对SPAC系统中的水分运动方程和温度方程分别进行数值求解。

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research on spac water flowing model in the upland of red soil

南方红壤旱地SPAC水流模型的研究

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simulation of soil moisture content dynamics in spac system of irrigated farmland in inland oasis, northwest china

内陆绿洲灌溉农田SPAC系统土壤水分动态模拟研究

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Sequence of variation intensity for water potential in each part of the SPAC was atmosphere, plant and soil. It is shown that the water potential was influenced and controlled strongly by the process of plant water metabolism and up to meteorological factors.

SPAC各部分水势变化的起伏顺序是大气植物土壤，说明水势变化受植物水分代谢进程直至气象因子的强烈影响和控制。

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energy parameters in spac model for mulched field

覆膜农田SPAC系统模型中能量参数的确定

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we also analyzed water potential and the distribution of water flow resistance in consecutive spac systems.

同时对SPAC连续体系中的水分势能和水流阻力的分布规律进行了分析。

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a series of processes of exchange of water and energy are contained in spac.

土壤-植物-大气连续体（SPAC）中包括一系列的水分与能量交换过程。

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a study on water cycling and water use efficiency of the plantation spac in the southern loess plateau

黄土高原南部人工植被SPAC系统水分循环模式和利用效率研究

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the soil plant system is a very important subsystem of the soil plant atmosphere continuum ( spac).

土壤植物系统是土壤-植物-大气连续体（SPAC）中的一个重要子系统。

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in spac, it is the plant that should be optimum indicator for irrigation control, because the soil factor and air factor, which control the balance of water in crops, can but be integrated by plant.

而在土壤植物大气连续体（简称SPAC）中，植物才应该是是否需要灌溉的最优指示物，因为只有它们才能把控制植物水分平衡的土壤因子和大气因子综合起来。

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studies on the water transport characters in spac system of mu us sandy land in ningxia

宁夏毛乌素沙地SPAC系统中水分运移特征的研究

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water, heat transfer and crop growth simulation in spac with water and nutrient stress

考虑水分和养分胁迫的SPAC水热动态与作物生长模拟研究

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study on evapotranspiration of winter wheat using spac model

利用SPAC模型对冬小麦蒸散发的研究

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evapotranspiration model based on spac theory

基于SPAC理论的田间腾发量计算模式

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effect of phosphate fertilizer application level on spac moisture energy characters

施磷水平对SPAC水分能量特征的影响

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At present, SPAC theory mainly researches the water moving law in soil-plant-atmosphere continuum in northwest arid area, China, but the water mutative law in each part of SPA continuum has not been systemically and exploringly research.

目前SPAC理论在我国西北干旱地区应用的较多，主要侧重土壤植物大气整个连续体水分运移规律的研究。对这连续体的各个组成部分中的水分变化规律没有进行过较为系统的探索性研究。

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study on the soil hydrodynamics model for the soil-plant-atmosphere continuum ( spac) system

基于SPAC系统的土壤水动力学模型研究

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plant root water uptake is an important part of the research on water transforming patterns in spac.

植物根系吸水过程是SPAC系统中水分运移规律研究的重要内容。

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finite element iteration method for water and heat coupling movement equations is spac system

SPAC系统中水热耦合运移方程的有限元迭代算法

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the coupled iteration method in solving the water movement and heat transfer in spac

求解SPAC系统水热输移的耦合迭代计算方法

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the soil-plant system is a very important subsystem of the spac.

土壤&根系系统是SPAC水分连续体中重要的子系统。

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spac theory was the foundation of quantitative study in water transportation and energy transition.

SPAC理论为人们系统地定量研究水分的运输及能量转换奠定了理论基础。

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water conditions and relationship among the components of the spac system of mu us sandy land, china

毛乌素沙地SPAC系统中各部分水分状况及其关系的研究

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nitrogen balance in spac system and the simulative model

SPAC系统中氮平衡及其模拟模型

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study on microclimate changes in the field under sprinkler condition principles of soil water movement in the spac system

喷灌条件下田间小气侯的变化和SPAC系统土壤水分运移规律的研究

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the result revealed the water translocation mechanics of spac system.

揭示了盐渍化地区SPAC系统内的水分迁移机理。

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application of spac in ecological environment oriented water resources management in arid region, nw china

SPAC系统在面向生态的西北干旱区水资源管理中的应用

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preliminary studies on groundwater effects on spac system in shallow groundwater field

浅地下水埋深区潜水对SPAC系统作用初步研究

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spac interface water flux control and its application to water-saving in agriculture

SPAC界面水分通量调控理论及其在农业节水中的应用

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model on water transfer of spac in apple-wheat multiplex system

苹果-小麦复合系统SPAC水分运移模拟模型

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