discusses the new realm of the physical geographical integrative research, such as the synthetical physical geography classification of China, the heat equilibrium and water equilibrium in the ground, the natural potentiality in agricultural production, the use and amelioration of sloping fields, land system science, etc;
It suggested that we should use the rainwater collecting superiority on hillside fields to construct agroforest ecosystems on hillside fields suitable to water cycling equilibrium in unit ecosystem and to maintain water equilibrium in ecosystems by ecological construction of water equilibrium.
It describes performance and working principle and characteristic and use of the correlometer. To unit with the practical instance of oilfield,describes application in the testing of water equilibrium.
It suggested that we should use the rainwater collecting superiority on hillside fields to construct agroforest ecosystems on hillside fields suitable to water cycling equilibrium in unit ecosystem and to maintain water equilibrium in ecosystems by ecological construction of water equilibrium.
The law of water requirement of some crops and different planting mode in Linze's oasis on the Heihe River middle valley was studied by water equilibrium method through preventing seepage sump, that was built with soil engineering plastic film, and its volume was 2 m×2 m×2 m.
They are of practical significance to the studyof water movements in soil and of consumption in evapouration, to the calculation of water equilibrium of soil, and analysis of intake supply.
The water consumption of cotton on Linze County in the Hexi Corridor Region was studied by water equilibrium method. The water consumption is 675. 5mm. 5 or 6 times of irrigation should be applied for promoting water use efficiency.
By dividing the slope into slices, finite difference equations of one-dimensional transient unconfined groundwater flow in a slope are proposed on the basis of water equilibrium principle.
It is briefly introduced that three-dimensional finite difference numerical equation is built according to Darcy's law and water equilibrium principle.
Mining exploitation activities have imposed increasingly grave harm on social and ecological environment,including occupation of plowland,initiating geologic hazards,destroying water equilibrium,physiognomy and sights.
The groundwater drainage system with water drainage boreholes and galleries at Huanglashi landslide is first tested in China This paper discusses the effects of the test and provides the scientific evidence for the groundwater peak value control engineering design based on the further understanding of the landslide deformation,water equilibrium and groundwater characteristics
Correlations of organism - water equilibrium ratios with body size were not significant for QCB, HCB and OCS (P>amp;gt;0.1), but were found to be significant for DDE and PCB (P>amp;lt;0.01).
Organism - water equilibrium ratios were calculated for all species sampled to quantify the importance of food web processes in regulating contaminant exposure dynamics.
A new method has been described in this paper for simplifying the anlysis of the liquid phase in salt-water equilibrium systems. According to this method,in a three component system of two salts and water, when the liquid phase is in equilibrium with a solid phase of definite composition such as a salt, or a salt hydrate,etc,only one component has to be determined by analysis,the other two can then be calculated. This is accomplished by first making a solution of water and one ...
Water requirements were measured by making use of water equilibrium, in the whole growing period and each growing stage to study the relations between millet yield and water requirement. The results showed that water consumption of millet was different in each growing stage; soil moisture content was different in the same growing stage, so that the characters and yield of millet had the different reactions. Water consumotion of millet was not great in the seedling stage. ...
A rather systematic discussion on the methods of zero flux section and surface flux were made in this paper. A locate flux method was put out as well and its experimental example was given. They are of practical significance to the studyof water movements in soil and of consumption in evapouration, to the calculation of water equilibrium of soil, and analysis of intake supply.