1995 Vol. 12, No. 4
1995, 12(4): 337-342.
Abstract:
Many years studies showed that the main factors not being scale pecan production in the southern areas of the Changjiang River were later bearing age, low and unstable fruit yield. In 13 variatives of seedling progenies, about 0.3% of trees had high ...
Many years studies showed that the main factors not being scale pecan production in the southern areas of the Changjiang River were later bearing age, low and unstable fruit yield. In 13 variatives of seedling progenies, about 0.3% of trees had high ...
1995, 12(4): 343-346.
Abstract:
An analysis of wood chemical composition was carried out for eight poplars, of which four (Populus adenopoda, P.eura cv. `I-214, P.deltoides cv.`Lux and P.deltoides cv. `Havard) sampled from south of China and four (P.deltoides ev. `Zs-5, p. popu-eur...
An analysis of wood chemical composition was carried out for eight poplars, of which four (Populus adenopoda, P.eura cv. `I-214, P.deltoides cv.`Lux and P.deltoides cv. `Havard) sampled from south of China and four (P.deltoides ev. `Zs-5, p. popu-eur...
1995, 12(4): 347-352.
Abstract:
This paper analyses the number of soil microoganisms and biochemical properties in mixed forests of Chinese fir with Liriodendron chinense, Alniphyllum forluner, Schima Superba, Sassafras tsumu and Cinnamomum camphora. The soil microoganisms in mixed...
This paper analyses the number of soil microoganisms and biochemical properties in mixed forests of Chinese fir with Liriodendron chinense, Alniphyllum forluner, Schima Superba, Sassafras tsumu and Cinnamomum camphora. The soil microoganisms in mixed...
1995, 12(4): 353-359.
Abstract:
A general model was sought to estimate the shoot biomass of short rotation coppice crops in the UK. Different aged shoots of willow and poplar clones were sampled from different sites to produce 19 data sets. Models were created for each clone, separ...
A general model was sought to estimate the shoot biomass of short rotation coppice crops in the UK. Different aged shoots of willow and poplar clones were sampled from different sites to produce 19 data sets. Models were created for each clone, separ...
1995, 12(4): 360-366.
Abstract:
This paper deals with the principles of the influences of thinning methods on the growth and ylelds of thinned stands. The stands are divided into three growth layers by relative diameter. The structure, the growth rates of basal area and the competi...
This paper deals with the principles of the influences of thinning methods on the growth and ylelds of thinned stands. The stands are divided into three growth layers by relative diameter. The structure, the growth rates of basal area and the competi...
1995, 12(4): 367-373.
Abstract:
Three years continuous study indicated that anuual growth process of southern type poplars in coastal plain, Ningbo, Zhejiang, could be divided into four stages: early growing stage, fast growing stage Ⅰ, fastgrowing stageⅡand late growing stage, and...
Three years continuous study indicated that anuual growth process of southern type poplars in coastal plain, Ningbo, Zhejiang, could be divided into four stages: early growing stage, fast growing stage Ⅰ, fastgrowing stageⅡand late growing stage, and...
1995, 12(4): 374-379.
Abstract:
Four species of Sageretia got from Zhejiang were propagated by seeds, one-or two-year old shoots and three-or five-year old shoots in Linan of Zhejiang. The results showed that for S. thea, the germination percentage of seeds was 95%, and the rooting...
Four species of Sageretia got from Zhejiang were propagated by seeds, one-or two-year old shoots and three-or five-year old shoots in Linan of Zhejiang. The results showed that for S. thea, the germination percentage of seeds was 95%, and the rooting...
1995, 12(4): 380-387.
Abstract:
Climatic puzzle about the superior growth of bamboo in mountain areas was revealed by analysing the best growth period (daily average temperature 15 to 25℃), the vertical distribution of light, heat and water and the limiting factors of growth at the...
Climatic puzzle about the superior growth of bamboo in mountain areas was revealed by analysing the best growth period (daily average temperature 15 to 25℃), the vertical distribution of light, heat and water and the limiting factors of growth at the...
1995, 12(4): 388-398.
Abstract:
The sand vegetation found on the sandy coast of some islands in Zhejiang, having a simple floristic composition, is composed of 271 species of wild vascular plants, either psamomphytes or plants with sandy tolerance, which belong to 191 genera of 67 ...
The sand vegetation found on the sandy coast of some islands in Zhejiang, having a simple floristic composition, is composed of 271 species of wild vascular plants, either psamomphytes or plants with sandy tolerance, which belong to 191 genera of 67 ...
1995, 12(4): 399-403.
Abstract:
Three kinds of chemical methods, chlorinated lime, phenoxyacetic acid+ammonium bicarbonate, and ethrel+pine needle juice, were used in resin tapping of Pinus elliottii at 40% face load and below 25cm cut, resulting that annual single-plant oleoresin ...
Three kinds of chemical methods, chlorinated lime, phenoxyacetic acid+ammonium bicarbonate, and ethrel+pine needle juice, were used in resin tapping of Pinus elliottii at 40% face load and below 25cm cut, resulting that annual single-plant oleoresin ...
1995, 12(4): 404-411.
Abstract:
The single-beam and simple strut oblique bridge was used to analyse the character of bearing force, and the formula for internal force in oblique beam was conducted. According to analysis and research, moment of turn on oblique beam of oblique bridge...
The single-beam and simple strut oblique bridge was used to analyse the character of bearing force, and the formula for internal force in oblique beam was conducted. According to analysis and research, moment of turn on oblique beam of oblique bridge...
1995, 12(4): 412-417.
Abstract:
Based on the chemical compositions, physical properties and activity of amargosite waste residue, it was applied to production of ordinary portlands cements in a suitable prescription. Compared test indicated that the residue was a new batch of cemen...
Based on the chemical compositions, physical properties and activity of amargosite waste residue, it was applied to production of ordinary portlands cements in a suitable prescription. Compared test indicated that the residue was a new batch of cemen...
1995, 12(4): 418-422.
Abstract:
In recent years, village forest farms in Zhejiang Province have been developing rapidly, but there has been serious stagnation and deficiency in property system construction. The authors think that reconstruction of property system is the objective d...
In recent years, village forest farms in Zhejiang Province have been developing rapidly, but there has been serious stagnation and deficiency in property system construction. The authors think that reconstruction of property system is the objective d...
1995, 12(4): 423-428.
Abstract:
The village and town forest farm is an important strength to develop forestry. On the base of a good deal of investigations, this paper thoroughly analyses the present problems and their reasons of village and town forest farms of Kaihua County. Futh...
The village and town forest farm is an important strength to develop forestry. On the base of a good deal of investigations, this paper thoroughly analyses the present problems and their reasons of village and town forest farms of Kaihua County. Futh...
1995, 12(4): 429-433.
Abstract:
In analysing the basic characteristic and state of mind of college students, it is suggested that education of ethics should be emphasized in all aspects of college life. We should prepare the students to fit into socialist construction.
In analysing the basic characteristic and state of mind of college students, it is suggested that education of ethics should be emphasized in all aspects of college life. We should prepare the students to fit into socialist construction.
1995, 12(4): 434-439.
Abstract:
When the concentration of phenols accumulated in the soil under Chinese fir forest from time to time, it can decrease the growth of trees, even to death. The degradation of phenols in the soil mainly relies on the growth and development of many micro...
When the concentration of phenols accumulated in the soil under Chinese fir forest from time to time, it can decrease the growth of trees, even to death. The degradation of phenols in the soil mainly relies on the growth and development of many micro...
1995, 12(4): 440-443.
Abstract:
Two methods and four insecticides of various concentrations were used in the test. The results showed that spraying insecticides could produce better results than injecting them, with solution of 2.5EC deltamethrin as the best. It is testified that s...
Two methods and four insecticides of various concentrations were used in the test. The results showed that spraying insecticides could produce better results than injecting them, with solution of 2.5EC deltamethrin as the best. It is testified that s...
1995, 12(4): 444-445.
Abstract:
Four techniques on street green designing are made in the right of practical experience, with some discussions in terms of theory.
Four techniques on street green designing are made in the right of practical experience, with some discussions in terms of theory.
1995, 12(4): 446-448.
Abstract:
At first, the related expression (EI) between water boiling point and pressure is derived by using the Clapayrons equation (E2). And then E2 is proved from experimental data based on E1 for indirectly proving the correctness of second law of thermody...
At first, the related expression (EI) between water boiling point and pressure is derived by using the Clapayrons equation (E2). And then E2 is proved from experimental data based on E1 for indirectly proving the correctness of second law of thermody...
1995, 12(4): 449-451.
Abstract:
The medical staffs of colleges and universities should fit themselves for the rapid development of science and society. They should guide young student's view of health from traditional and biomedical pattern to biological, psychical and sociomedical...
The medical staffs of colleges and universities should fit themselves for the rapid development of science and society. They should guide young student's view of health from traditional and biomedical pattern to biological, psychical and sociomedical...
