Based on analysis of micropaleontology on the cuttings and core samples from Jianshi Well 1 in Jianshishan area of middle Qaidam basin,a few ostracoda fossils dominated by Eucypris obtus and some others like Eucypris stenoformi,Cyprideis and Cyprinotus(Heterocypris) have been found in the Upper and Lower Youshashan formations.
According to water saturation of rock and the porosity in thin section combined with core, debris, and routine well logging data, the generalized permeability prediction model for quantitative calculation of the permeability of reservoir in the high-resolution isochronic sequence framework has been established, and by use of the model the permeability of the reservoir interval in well Puguang 2 has been quantitatively calculated;
At the same time, dosing well research on the basic property of rock debris, the measures of rock debris and the distributing of particle size which provide theories for choosing screen and choosing the way for separate.
Based on the growth, wood property of the ortets, and rooting abilities of cuttings, 32 Pinus massoniana clones for pulp use were selected from forests of superior provenance, mixed families, and progeny test of seed orchard by two-step selection.
A cutting orchard of 0.33 hm2 on the hillside was constructed to intensively produce cuttings according to the tests on construction methods, pruning, and fertilization.
A total of 50,000 grade I, 37,500 grade II, and 62,500 grade III cuttings were collected per hectare of this cutting orchard each time, and were cut three times each year.
These compounds promoted rooting of leaf and stem bean cuttings, increased rhizogenic activity, and stimulated the development of root systems in barley and tomato seeds.
In forest phytocenosis that were formed with species replacement (after cuttings with understory clearing), the annual moss production (net primary production) ranged from 2.8 to 20.6 g/(m2 y).
In this note we prove that the corner cutting procedure preserves continuity properties, i.e., a sequence of polygons obtained in this way belongs to the Lipschitz class of the same constant and exponent.
A branch-and-price algorithm for solving the cutting strips problem
After giving a suitable model for the cutting strips problem, we present a branch-and-price algorithm for it by combining the column generation technique and the branch-and-bound method with LP relaxations.
Effects of Cutting Density on Growth, Yield and Quality of Poplar Clone Seedlings
In order to identify the optimum cutting density for producing the highest number of plantable seedlings of poplar clones, a split-plot randomized block design was used to establish four cutting densities in plots.
Concept and Classification of Coarse Woody Debris in Forest Ecosystems
Coarse woody debris (CWD) is generally considered as dead woody materials in various stages of decomposition, including sound and rotting logs, snags, and large branches.
Experimental data are analyzed that concern the effect of zoogenic debris on the properties of soddy deep podzolic soils and raw-humus brown soils characteristic of southern taiga forests in the Yenisei region of Siberia.
Zoogenic plant debris falling on the ground surface during tree stand defoliation is a short-acting but powerful stimulant of biological activity in the litter; hence, it has a considerable effect on soil properties.
The results of experimental studies on the contribution of zoogenic debris to transformation of soil properties in the southern taiga subzone of Central Siberia are analyzed.
The reduction in the catchment area resulted from the eruption and spread of the basalt flows of Jabal Arab-Druz (JAD), which together with the resulting deposition of thick rock debris and gravels occupied the drainage system.
The thermal imagery, done in August, 1973, did not locate any suspect thermal areas on the northwest face of Little Tahoma Peak, the site of the large 1963 rock debris avalanche.
Indirect effect that may accompany such explosions include wind-borne ash, pyroclastic flows formed by the remobilization of rock debris thrown onto sloping ground, and lahars.
The displaced water caused the failure of a similar reservoir downstream, and the combined water flowed very rapidly via a series of canyons, collecting rock debris as it travelled for over 4 kilometres horizontally and 600 meters vertically.
Dynamic simulation shows that the runout can be explained as a flow of dry granular material with a normal coefficient of friction, if the presence of an isotropic dispersive stress within the moving rock debris throughout the runout is assumed.