Distribution and Multipurpose Utilization of Subsurface Brine in the Circum-Bohai Sea Area
The circum-Bohai Sea area is rich in subsurface brine, and the subsurface brine is distributed mainly in the coastal plain area along the coast of the Laizhou Bay, Bohai Bay and Liaodong Bay and the Yellow River delta area.
In recent years, the subsurface brine has been exploited as a kind of resources, and has widely applied in salt chemical industry and tidal flat aquaculture, which has played an important role in developing the coastal economy.
Root biomass and underground C and N storage of the primitive Korean pine and broad-leaved forest and its different succession s
The underground biomass of these three forests which estimated with others' research were 10.44, 9.42 and 11.48 t/hm2, and the amount of carbon-fixed were 47.94, 45.14 and 37.52 t/hm2, respectively.
In addition, naturalized populations have a great capacity to grow clonally with underground stems.
canadensis in fixed sites for three years, and analyzed the seasonal dynamics of the morphological parameters of the underground parts and the caloric values of different organs of S.
canadensis reproduces asexually via underground rhizomes and nodes on the stem base to recruit new individuals, and in plants that experience mechanical damage, this reproductive strategy is used to produce clonal shoots.
In this paper, a semilinear elliptic-parabolic PDE system which arises in a two dimensional groundwater flow problem is studied.
Operator-splitting galerkin methods for one kind of oin reaction model for the pollution in groundwater
The operator-splitting methods for the mathematic model of one kind of oin reactions for the problem of groundwater are considered.
euphratica showed a proportional decrease with various degrees of elevation of the groundwater table after water release.
The soluble sugars and proline accumulation responded to the changes of groundwater table independently: the former occurred under salt stress, whereas the latter was more significant under drought stress.
We develop methods that give rise to natural monomial bases for such rings over their ground fields and explicitly determine precisely which monomials are zero in the ring of coinvariants.
Direct current magnetic susceptibility measurement in the 2-300 K temperature range supports a high-spin ground state.
Meanwhile, the measurement of water vapor in daytime has been taken, and the profiles of water vapor mixing ratio at ground level have been detected.
Low velocity target detection based on time-frequency image for high frequency ground wave radar
The Doppler spectral broadening resulted from non-stationary movement of target and radio-frequency interference will decrease the veracity of target detection by high frequency ground wave (HFGW) radar.
Characteristics of root growth in a fast-growing and high-yield poplar plantation under subsurface drip-irrigation
'I-214') were studied under two contrasting conditions, subsurface drip-irrigation (SDI) and normal irrigation (CK), on the sandy soil of Chaobai River, Beijing.
With respect to horizontal distribution, roots (d>amp;lt;10 mm) under SDI were distributed mainly near the subsurface emitters and the amount of roots in 3 m in a row under SDI were 50% less than under CK.
The values of damage scalar are higher on the bearing surface and subsurface, and decrease when it approaches the interface of overlay and nickel layer.
Through investigating the diamond-silicon grinding system, the grinding mechanism, including chip removal and subsurface damage, is discussed with the aid of the molecular dynamics (MD) approach and grinding experiments.