现有的根系吸水模型大致可以分为微观模型和宏观模型。
The current root water uptake models can be divided into the microscopic model and the macroscopic model.
研究树木根系吸水机制有助于了解树木对地基沉陷的影响。
Understanding water uptake by tree roots will help to know the influence of tree on the ground settlement.
同时建立了基于BP神经网络的油料向日葵根系吸水模型。
And established the root uptake water model based on BP Neural Network in saline soil.
综述了作物根系吸水模型的研究现状、存在问题和研究展望。
The study status, the existing problems and the research in the future for the crop root water uptake models were summarized in this paper.
建立了由田间实测土壤水分动态资料反求的冬小麦根系吸水模型；
Set up the wheat root water uptake model with the field experiment data of soil moisture;
由理论分析和计算，得到了较为切合实际的二维根系吸水率模型。
Through theoretical analysis and numerical computation, a two dimensional root water uptake model then was developed. Results of case st...
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。
Plant root water uptake is an important part of the research on water transforming patterns in SPAC.
树木根系吸水引起土壤含水率显著降低，从而导致胀缩性地基沉陷。
Soil water extracted by tree roots can cause significant decrease of the soil water content and eventually lead to ground settlement.
结果表明：紫花苜蓿根系吸水速率与土壤剖面含水量和根重密度密切相关。
The results of this analysis showed a significant correlation of water uptake rate with soil profile water content and root weight density.
结果表明：第二种方法建立的苹果树根系吸水模型的模拟精度略高于第一种方法。
The results showed: the simulation accuracy of the apple tree root water uptake model established by the second method is slightly higher than the model established by the first method.
根系部分皮层细胞死亡可能影响根系吸水和植株水分运输，导致植株含水率降低。
Cortical cell death in root system might also have a negative effect on root water absorption and transportation, causing plant water content decreased.
根系吸水模型的准确性在一定程度上依赖于根系吸水速率与根长密度关系的研究。
The accuracy of root-uptake-water model depends on the relationship of root-water-uptake rate and root length density to a certain extent.
模拟结果表明，两模型基本能够正确反映冬小麦根系吸水的实际状况，满足生产要求。
The simulation results showed that both the two models could reflect the actual situation of root-water-uptake of winter wheat, and could meet then…
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 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.
在土壤-作物系统中，根系吸水模型是连接土壤和作物的桥梁，然而又是最难处理的一个环节。
In soil-plant system, linear root water uptake model is a linkage between soil and plant.
宏观根系吸水模型的边界条件容易确定和控制，但该类模型忽略了根系微域的水势梯度和其他类似现象。
The boundary conditions were easily determined and controlled by the macroscopic models, while the gradient of water stress in the micro-zones of roots was ignored.
该文根据达西定律和裘布衣假定，把树木根系近似看作为倒圆锥体，建立了树木根系吸水模型，并以油松为例对模型进行了验证。
According to Darcy-theory and Dupuit-hypothesis, the roots of tree were approximately considered as an upside-down circular cone, and then plant root water uptake model was established.
将几个影响根系吸水的因素综合起来考虑，用线性方程进行描述，建立根系吸水模型，是近些年来出现的一个较为简捷的新途径。
One of the most research methods used in recent years is to use linear equation to describe several factors comprehensively and set up root water uptake model.
PROBE系统还可用于快速、准确地分析作物的根系深度和吸水模式、土壤质地，减少无效排水、养分淋溶等。
By using the PROBE system, the root depths and water absorption modes of crops and soil qualities can be quickly analyzed exactly, the useless drainage and nutrient leaching etc. will be decreased.
通过使用生化制剂借以改善植物根系周围土壤水分状况和林木本身的吸水能力。
The use of chemical preparation can improve the soil water condition of root environments and the seedlings' bibulous capacity.
旱稻根系发达，吸水吸肥和抗旱能力强，特别适宜丘陵地区种植。
Experimental results also indicated that upland rice, with strong root system and high water uptake ability, is rather suitable to the hilly red earth area.
所以，对樟子松幼苗的根系用吸水剂进行适当的保水处理，无疑是会提高造林成活率的。
Therefore, using water-absorbing powder will increase the survival rate of seedlings in planting Pinus silvestris var. mongolica.
所以，对樟子松幼苗的根系用吸水剂进行适当的保水处理，无疑是会提高造林成活率的。
Therefore, using water-absorbing powder will increase the survival rate of seedlings in planting Pinus silvestris var. mongolica.
应用推荐