• 中国中文核心期刊
  • 中国科学引文数据库(CSCD)核心库来源期刊
  • 中国科技论文统计源期刊(CJCR)
  • 第二届国家期刊奖提名奖

1989 Vol. 2, No. 5

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PROVENANCE TRIALS AND PREDICTION OF SUITABLE PLANTING AREA BASED ON BIOCLIMATIC ANALYSIS FOR EUCALYPTUS GRANDIS IN CHINA
Wang Huoran, Yan Hong, Zhou Wenlong
1989, 2(5): 411-419.
Abstract:
Two trials of species/provenance of eucalypts have been carried out by the collaborated research between Chinese Academy of Forestry and Australian Centre for International Agriculture Research in the tropical and subtropical regions of China.The trial sites were chosen in Changtai County with 24°40'N, 117°50'E and in Qionghai County with 19°14'N, 110°28'E,in Fujian and Hainan Provinces respectively.Of the species tested on the both sites, Eucalyptus grandis was examined for the growth rates of height and diameter over 15 provenances.It was found that there were not any significant differences in the growth of height and diameter among provenances on Changtai site with mean height of 4.51 m and mean diameter of 4.2cm:and there were significant differences on Qionghai site with average values of 4.45m for height and 3.6cm for diameter.The 8 provenances with values of height higher than the trial mean on Changtai site were 14860 and 14861, both from EMBRAPA, Brazil, 14509 (Urbenville, Qld), 14431 (Belthorpe, Qld) and 13019 (Coffs Harbour, NSW) from the main range of the species, the rest three, 14393 (Mareeba), 14210 (Ravenshoe) and 14431 (Belthorpe) all from higher county in Queensland.The top 6 provenances in ranking on Qionghai site were 14420 (Ravenshoe), 13431 (Mt.Lewis), 14849 (Atherton), 14210 (Ravenshoe), 14838 (Cardwell) and 14861 (EMBRAPA, Brazil) were all from the tropical part of Queensland except the Brazilian.Two seedlots of South Africa, 13965 and 13365 performed the poorest on both sites.It was found that the results of both trials gave very different rank in height and diameter for provenances so that a marked genotype x environment interaction existed.The reason for this could be due to the two sites under different climate zones and soil types.Using GENSTAT programme, bioclimate analysis outlined a geographic area into which E.grandis could be introduced successfuly.This area would cross over 10 provinces from Wenzhou in Zhejiang Province down to south along the estern coast and to the regions in the south of Nanling Range, Hainan Id.and some seperate parts in Sichuan and Yunnan included.The climatic factors used for multivariate analysis were annual mean temperature (14℃), minimum temperature on record (-8℃), mean of minimum temperature of the coldest month (4℃),mean of maximum temperature of the hottest month (28-35℃), annual mean rainfall (1000 mm), the number of rain days per year and the number of month with precipitation less than 25 mm.
THE EFFECT OF INBREEDING ON SEED GERMINATION AND SEEDLING HEIGHT GROWTH OF CHINESE FIR
Chen Yitai, He Guiping, Li Gongxue
1989, 2(5): 420-426.
Abstract:
Six unrelated clones of Chinese fir in a seed orchard were mated using full dialel mating pattern with selfing and open-pollination.Seeds were collected from each parent, testings were also established.And then, in this progeny test plantation, the 4-6 flowered trees in one full-sib family and one open-pollinated family were chosen to be mated in involving self-, back-, within sib-and outcrossing.Three groups of experiments indicated that inbreeding resulted in much reduction both in seed germination and seedling height growth.The inbreeding depression has increased with the increase of inbreeding coefficients, Comparing with outcrossing, the percentages of seed germination of selfing, backcrossing and full-sib-mating, half-sib-mating have been reduced by about 88%, 42% and 20%, and those of seedling height growth reduced by about 27%, 17% and 13% respectively.There were significant differences in inbreeding depression between the families or mating parents.
STUDIES ON THE NUCLEAR POLYHEDROSIS VIRUS OF THE POPLAR LOOPER APOCHEIMA CINERARIUS Ⅵ. STORAGE EFFECT TEST ON THE VIRULENCE OF ACINPV
Wang Guicheng, Yu Zailin, Tong Shouyuan
1989, 2(5): 427-432.
Abstract:
Polyhedral inclusion bodies of nuclear polyhedrosis virus (NPV) of poplar looper Apocheima cinerarius, were stored as dried powder and formulations under various conditions and for various lengths of time.The dry polyhedral powder made by the viral precipitation with acetone from lactose suspensions and its preparing formulations were stored at room temperatures, or in refrigerator (4℃) or in freezing (-20℃).The results indicated that the viral activity of the dry polyhedral powder (AciNPV) and the formulations could be retained for two years in refrigerator (4℃) or in freezing (-20℃).Dry powder stored at room temperature could only retain its viral activity for one year.The formulation of AciNPV stored at room temperature showed a better result that it was fairly stable for nearly two years.
THE INVESTIGATION OF MANGROVES AND ITS HABITAT IN BOTH HARBOURS OF DONGZHAI AND QINGLAND IN HAINAN ISLAND
Zheng Dezhang, Liao Baowen
1989, 2(5): 432-441.
Abstract:
According to the data of investigation, the species and community types of mangroves in Dongzhai and Qingland harbours of Hainan Island and their distributions are expounded.It will be pricise to reflect natural distribution in the estuary region if the distribution of species in mangroves is described in the way of two dimensional space, i.e.the direction of tideflow as vertical, the direction perpendicular to it as horizontal.By the analysis of climatic difference and introduced species, it is concluded that the narrow-distributed and hot-like tropic species can be introduced to the north of tropical seabeach.Besides those mantioned above, it is summed up that what kind of land is suitable for some mangrove afforestation and point out that diking mangroves for breeding pond and clearing planting crops is harmful.
COLD ACCLIMATION OF SUSPENSION CULTURES OF ACACIA MEARNSII WILD
Wang Jingwen, Jiang jing
1989, 2(5): 442-446.
Abstract:
Suspension cultures of Acacia mearnsii Wild were prepared from callus.Six different experiments were made:(a) The suspension were placed at 25℃ in a LD of 16h for 14d:(b) The suspension were placed at 25℃ in a SD of 8h for 14d:(c) The suspension were placed at 2℃ in a LD of 16h for 14d:(d) The suspension were placed at 2℃ in a SD of 8h for 14d;(e) The suspension were placed at 25℃ in a LD of 16h for 7d followed by placing it at 2℃ in a SD of 8h for 7d:(F) The suspension were placed at 2℃ in a SD of 8h for 7d followed by placing it at 25℃ in a LD of 16h for 7d.The survival percentage of suspension cultures exposed to different conditions were measured by plasmolysis of cell.These results indicated that nonacclimated suspension cultures (i.e.with a LD of 16h and 25℃ treatment) showed a survival temperature of -2.5℃ and a SD of 8h for 14d or a LD of 16h at 2℃ for 14d also gave a survival temperature of-2.5℃ However, when the suspension cultures were exposed to a SD of 8h at 2℃ for 7d or 14d, the survival temperature went from-2.5℃ to -5.5℃ for 7d of acclimation, and to-7.5℃ for 14d.The suspension cultures responsed only to the combined SD and 2℃treatment.An increased freezing survival by individual stimuli (light or temperature alone) was not possible.It was necessary that both SD and temperature of 2℃ were at the same time to increase freezing survival.
A STANDARD VOLUME YIELDING MODEL OF CHINESE FIR USED FOR SITE QUALITY EVALUATION
Luo Qibang, Wu Zhide, Jiang Jusheng, Chen Dingguo, Xiao Yonglin, Ge Hongli
1989, 2(5): 447-453.
Abstract:
A standard volume yielding model was established on the basis of an analysis of the data of growth process of 25 Chinese Fir stands in 5 forest farms in Nanling Mountain Area, Hunan and Guangdong Provinces. The model was used to prove that the rule of stem number changing with the mean diameter of the stand in original growth process table is reliable. Based on this, through adopting the method of standardizing the stem numbers, all the volume data of different plots in the growth process table, after eliminating the influence brought by thinning, were changed into standard level (canopy density=1.0). Then, analyzed by an improved 8 parameters Richards function and Marquardt iteration, a polymorphic standard yielding model, which took site index and age as the interpreting variables, was established. All the related properties of the model were discussed and the result was satisfactory. It supplies a foundation for site quality evaluation using index of volume
THE INVESTIGATION AND ANALYSIS ON SITE CONDITION AND GROWTH OF GMELINA ARBOREA
Tan Tianyong, Huang Jinguang
1989, 2(5): 454-460.
Abstract:
The result of investigation and analysis showed that, the tropical and the south-subtropical below 23.5°N in China, the annual mean temperature is 20.5-24.5℃ the extreme minimum temperature-1.5℃, the mean annual rainfall 1200-2200mm, is the most suitable region for growth of Gmelina arborea.It demands the habitat with topography wide, sunshine abundance, gentle breeze (the ten days average wind speed2 m/second), loose soil structure, humus content2%, total nitrogen0.l%, available phosphate0.25mg/100g soil, pH 4.5-6.9, moisture content 10-24% of the surface layer soil.The growth effect of young plantation is significantly different in different kinds of vegetation types and slop position.The results of correlation analysis showed, in a certain range, that the growth of Gmelina arborea has respectively extremely significant positive correlation of linearity, power function, exponential function and S curve with pH value, moisture content, nutrient(N,P), but the available phosphate is a more important factor for the tree growth than the others.
STUDIES ON EGG PARASITOIDS OF DENDROLIMUS PUNCTATUS WALKER
Chai Ximin, He Zhihua, Wu Zhengdong
1989, 2(5): 461-468.
Abstract:
Telenomus dendrolimusi Chu, Trichogramma dendrolimi Matsumura and Trichogramma dendrolimi Ashmead are major egg parasitoids of Dendrolimus punctatus Walker in Zhejiang province.T.dendrolimusi is a better control agent in regulating the population of D.punctatus.Parasitizm by T.dendrolimi can be increased by artificial releasing of T.dendrolimi.Control of D.punctatus by using egg parasitoids should bring the role of egg parasitoids into full play, especially the role of T.dendrolimusi.Mixed stands of Masson pine (Pinus massoniana Lamb.) and Slash pine (Pinus elliottii Eng.) or Loblolly pine (Pinus taeda L.) are better than pure pine stands for the function of egg parasitoids is enhanced in natural stands.
ESTABLISHMENT OF STAND DENSITY CONTROL DIAGRAM FOR POPLAR IN LINGYI PREFECTURE, SHANDONG PROVINCE
Liu Jingfang, Tung Shuzhen, Zheng Shikai, Li Fuen, Wei Xiaode, Lu Yongnun
1989, 2(5): 469-476.
Abstract:
Data of 356 temporary sample plots of intensively cultivated poplar plantations (Populus deltoides cv."Lux" I-69/55) were collected for establishment of stand density control diagram.The densities of poplar plantation ranged from 278 to 5952 plants per ha..Among all 317 sample plots, the densities are ranging from 500 to 1894 plants per ha., accounting for 89.1%.The dominant height varied from 5.9 to 28.6m, the average D.B.H.3.8-28.6cm, the volume per ha.3.9-339.7m.The formularsused are as follows:1/M=A1+B1·1/N for equivalant height curve,1/D=A2+B2·N for equivalent diameter curveMRf=K2·NRfK1'for full density curve,MRy=K3·NRyK1' for density control curve.The accuracy of the stand density control diagram is 97.6 for equivalent height curve, 98.9% for equivalent diameter curve.
AN EXPERT SYSTEM FOR FOREST AND LANDUSE CLASSIFICATION OF REMOTELY SENSED IMAGES
Zhou Weiyang
1989, 2(5): 477-482.
Abstract:
In the field of forestry, computer image procesing has long been used as a subsidiary means to support human interpretation, instead of as a means to process the images independently.One of the reasons is that the conventional methods of computer classification lack the abilities of making effective use of ancillary data and human knowledge during the processing.A PC-based experimental expert system for forest and landuse classification of remotely sensed images is built to remedy this shortcoming.This paper describes the overall architecture, knowledge base and evidential reasoning strategy of the system.The explanation of a new method of pre-processing of digital images is also included.The system was tested with a TM image on a mountain area in North China.Both the reults from the system and a conventional method were checked by human interpretation and the comparison is reported.
STUDY ON EFFECTS OF SAND AND DUST CONTROL BY PROTECTION FOREST SYSTEM IN OASIS
Cheng Zhili, Gao Shangwu, Wang Zhigang
1989, 2(5): 483-488.
Abstract:
The study was conducted to explore the sand and dust control effects by the protection forest system in Oasis from 1985 to 1987.The plot is located in the NO.2 Experimental Field of Dengkou Experimental Bureau in the Inner Mongolia Autonomous Region of the Chinese Academy of Forestry, which is in the northeastern fringe of Ulanbho Desert and in the transition zone between desert and steppe.The results are as follows:1.The Oasis Protetion Forest System established in the No 2 Experimental Field possesses great falling dust and sand-transporting control effects.2.The main protective effects achieved within the networks of the protection forest are:(1) Angstrom turbidity coefficient βis reduced by 35-40%:(2) the amount of falling dust is decreased by 40%:(3) the amount of drifting sand is reduced by 80-90%:(4) the original structure of sand drift is changed.3.As regards to the value of background turbidity, Angstrom turbidity coefficientβ of the region has already amounted to a very great value(β≥2.0).
DIVISION OF SUITABLE AREA FOR GROWING WATTLE, ACACIA MEARNSII, AND KEY POINTS OF PLANTING TECHNIQUE IN EACH AREA
Gao Quanbi, Ren Huadong
1989, 2(5): 489-494.
Abstract:
Based on the distribution of 64 locations in wattle natural distribution in Australia and the data collected from 61 plantations in 30 more countries, 5 important factors were selected for determining the suitable climatic requirements for the growth of wattle.The experience of plantation wattle in China for over 30 years has been summarized.According to the comparison of climate and geographic distribution of wattle in China and other countries, China is a suitable country for growing wattle.Based on the results of our investigation, a division of suitable areas for growing wattle in China was made.Key points of planting method in each area were suggested.
A STUDY ON THE TECHNIQUES OF THE REPRODUCTION AND TRANSPLANTION OF EUROHYPNUM LEPTOTHALLUM (C. MUELL.) ANDO
Xia Dinjiu, Li Zhiguo, Wu Hao, Zhang Lin, Wang Yuanping, Yue Jiangen
1989, 2(5): 495-500.
Abstract:
Eurohypnum leptothallum (C.Muell.) Ando is an excellent overwintering host for Kaburagia sp.A suggestion has been made that not only the oversummering host (Rhus potannii Maxim.) but the overwintering host (E.leptothallum) must also be transplanted in the forest of gallnut producing Kaburagia sp..The key for the success or failure in setting up the forest of gallnut producing Kaburagia sp.lies in whether the E.leptothallum could be reproduced and transplanted on a large scale.This paper deals with the methods and techniques of the reproduction and transplantation of this species for the first time in China.When the forest of Chinese gallnut is wanted to be built in a large way, the practices mentioned in this paper will benefit the afforestation of Chinese gallnut forest.
THE APPLICATION OF SEQUENCE CLUSTER ANALYSIS ON DIVISION OF THE GROWTH STAGE OF SEEDLING HEIGHT FOR CINNAMOMUM PLATYPHYLLUM
Peng Fangren
1989, 2(5): 501-504.
Abstract:
Sequence sample cluster analysis is used to conduct a research on the growth process of the annual seedling height of Cinnamomum platyphyllum for seed sowing.The results indicate that the growth process of the seedling height can be divided into four stages:juvenile stage (April 7-May 5):early growth stage (May 6-July 15):rapid growth stage (July 16-September 5) and late growth stage (September 6-November 5).The rapid growth stage takes shorter time, but the increment at this stage accounts for most of the total increment of the whole year.It is very important to solve the contradiction between the supply and demand of water, fertilizer, temperature in the rapid growth stage and raise its growth rate.
ESTABLISHMENT OF THE SITE-INDEX TABLE FOR PINUS TABULAEFORMIS PLANTATION AND THE RELATIONS BETWEEN THE GROWTH OF P.TABULAEFORMIS STANDS AND THEIR SITE FACTORS IN JIULONG MOUNTAIN AREA, BEIJING
Lan Zaiping
1989, 2(5): 505-511.
Abstract:
Jiulong Mountain is a part of the low mountainous area in the western suburb of Beijing.A comprehensive investigation was made on the growth of dominant trees of Pinus tabulaeformis plantation stands distributed in various site in Jiulong Mountain area.The site-index table for P.tabulaeformis plantation in this area was made.Meanwhile, the relations between the growth of the P.tabulaeformis dominant trees and their site factors such as altitude, aspect, slope, form of stope surface, characteristics of soil etc.were analyzed with the multiple linear progressive regression.It was pointed out that the thickness of soil layer and the soil moisture were the limiting factors that affect upon the growth of P.tabulaeformis plantation in Jiulong Mountain area.Suggestions were made that how to manage the P.tabulaeformis plantation scientificly and how to use the deforested land appropriately, which has the site conditions of thinner soil layer and less nutrient and moisture capacites like Jiulong Mountain and in the low mountainous area in the suburb of Beijing.
1989, 2(5): 511-511.
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1989, 2(5): 512-513.
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1989, 2(5): 514-541.
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1989, 2(5): 514-514.
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