2002 Vol. 19, No. 4

Articles
Three-dimensional quantitative structure-activity relationships between structure of pyrethroid and their acute toxicity
LIU Xing-quan, XU Lu
2002, 19(4): 337-341.
[Abstract](1342) [PDF](291)
Abstract:
Comparative molecular fields analysis (CoMFA)was applied to the studies of the correlation of the pyrethroid and their acute toxicity-DL50 (rat , P .O .).The comparison of CoMFA results with different lattice spacing and different atom probes was inv...
Culture condition of phosphate-solubilizing bacteria Bacillus megaterium var .phosphaticum
LIANG Jin-feng, CHEN Xin, TANG Jian-jun
2002, 19(4): 342-345.
[Abstract](1491) [PDF](359)
Abstract:
Influence of different physical and chemical factors on the growth of phosphate-solubilizing bacteria (PSB) were investigated .The results showed that ①PSB was able to thrive and grow very well when its volume in a 100 mL flask was 20 mL , which was ...
Observation on the bacteria carried by pine wood nematode through optical microscope and its number measurement
XIE Li-qun, ZHAO Bo-guang, JU Yun-wei, LIANG Bo
2002, 19(4): 346-349.
[Abstract](1477) [PDF](196)
Abstract:
The bacteria carried pine wood nematode was observed using improved stained methods through optical microscope for the first time .It was found that bacteria exist on the surface and in environment of nematode .The amount of bacteria carryed by nemat...
Insect species diversity of Mount Tianmu in China
XU Hua-chao, WU Hong, YANG Shu-zhen, ZHAO Ming-shui, YING Zhi-hui
2002, 19(4): 350-355.
[Abstract](1965) [PDF](304)
Abstract:
The insect diversity was analyzed by means of data obtained in insect investigation from 1998 to 2000 . Lepidoptera , Hymenoptera , Coleoptera , Diptera were dominant orders from Mount Tianmu , China .The diversity of species and genera indicated tha...
Classification system on wetland vegetation in Zhejiang Province and main vegetation types and their distribution characteristics
LI Gen-you, CHEN Zheng-hai, LIU An-xing, SUN Meng-jun, YING Shun-dong
2002, 19(4): 356-362.
[Abstract](3941) [PDF](317)
Abstract:
Based on one-year field research , main wetland vegetation types in Zhjiang Province were basically made clear .In this paper , main wetland vegetation types and their classification system in Zhejiang Province were fully reported for first time .Wet...
On restoration ecology of Castanopsis eyrei forest in Mount Longxi of Fujian (Ⅰ)
WANG Guo-liang
2002, 19(4): 363-366.
[Abstract](1273) [PDF](195)
Abstract:
The effect of different intensity of artificial disturbance (ck , the original forest ;class A , the regeneration of selection cutting ;class B , the natural regeneration ;class C , Chinese fir ;class D , Phyllostachys heterocycla cv .pubescens) on t...
Litter decomposition and phosphorus release in an oak forest ecosystem
CHEN Jin-lin, WU Chun-lin, JIANG Zhi-lin, XU Xin-jian
2002, 19(4): 367-371.
[Abstract](1287) [PDF](209)
Abstract:
Study on the litter decomposition and phosphorus release in an oak (Quercus variabilis ) forest ecosystem was made by means of decomposition date obtained from litter bag in Jiangsu Province The mathematical models of litter weight residual rate with...
Effects of nitrogen application on leaf output and flavone content in ginkgo leaves
WU Jia-sheng, YING Ye-qing, CAO Fu-liang, ZHANG Wang-xiang
2002, 19(4): 372-375.
[Abstract](1473) [PDF](189)
Abstract:
In order to study the effects of nitrogen application on leaf output and flavone concentration in leaves of ginkgo seedlings , two-year-old ginkgo seedlings were transplanted and grew in pot culture at five levels of nitrogen(N)supply :0 , 1.5 , 3.0 ...
Longitudinal vibration properties of wood in moisture content region above the fiber saturation point
GUAN Hui-yuan, NISHINO Yoshi-hiko, TANAKA Chi-aki
2002, 19(4): 376-381.
[Abstract](1404) [PDF](163)
Abstract:
The longitudinal vibration model for wooden heterogeneous material was built in his paper , which was wood for analyzing the effects of free water gradient on longitudinal vibration frequency in its longitudinal direction . The results form experimen...
A primary study on the flavonoids from Sargentodoxa cuneata
GE Min-ju, JIN Ze-xin, LI Jun-min, ZHONG Zhang-cheng, ZHANG Li-long
2002, 19(4): 382-386.
[Abstract](1479) [PDF](179)
Abstract:
Sargentodoxa cuneata is a traditional Chinese medicine .In order to find out the primary effective components, the flavnoids in different organs were extracted and analyzed by HPLC and polycrylamide membrane chromatography .The results showed that th...
Analysis of volatile oil composition of Pleioblastus amarus
WANG Xue-li, Lv Jian-quan, ZHANG Yi-de
2002, 19(4): 387-390.
[Abstract](1323) [PDF](242)
Abstract:
By adopting distillation of Pleioblastus amarus leaves and GS-MS analysis .The volatile composition of preioblastus amcrus leaves was extracted , separated and identified in which 53 chromatographic humps were gained.Forty-two kinds of composition wh...
Changes of endogenous polyamines during differentiation on flower buds of Ginkgo biloba
ZHANG Wan-ping, HE Jun, SHI Ji-kong
2002, 19(4): 391-394.
[Abstract](1538) [PDF](227)
Abstract:
The contents of endogenous polyamines (putrescine , spermidine and spermine) on flower buds of Ginkgo biloba were analyzed during the differentiation .The results showed that the concentration of putrescine and spermidine increased markedly and had a...
Torreya grandis :mechanism of fruit drop and measures of preventing fruit drop
GUO Wei-hua
2002, 19(4): 395-398.
[Abstract](1621) [PDF](227)
Abstract:
More than 10-year studies of Torreya grandis in Zhaojia Town of Zhuji City , Zhejiang Province , suggests that cell activatar containing nitrifying wound phenol has effect to prevent preharvest fruit drop .Wanguobao and Atonik , growth regulators , u...
Environment effect comparison of evergreen and deciduous street trees in winter
ZHU Xue-nan, YING Qiu-shi, FENG You-lin, GAO Zhan
2002, 19(4): 399-402.
[Abstract](1342) [PDF](240)
Abstract:
In order to study the difference of enviornmental factors in winter under evergreen and deciduous street trees , the authors determined the illumination , air temperatur and relative humidity under four species of steet trees , Platanus acerifolia , ...
Health function of eco-tourism resort and its application in construction of eco-health parks
SHI Qiang, YU Shu-quan
2002, 19(4): 403-407.
[Abstract](1431) [PDF](207)
Abstract:
The health functions of eco-tourism resort relate to many environmental factors , and to establish a good health environment is one of important tasks in the construction of eco-health parks .After expounding the function of each health factors of ec...
Protection and development of wetland landscape in area of Qingshan Lake
WANG Xiao-de, REN Hai-fang, ZHANG Wan-rong, TENG Shui-ming
2002, 19(4): 408-411.
[Abstract](1410) [PDF](165)
Abstract:
According to investigation , Qingshan Lake wetland ecological systems , which include river , reservoir ,swamp and forest living in water with main tree Taxodium ascendens , have such characteristics as synthetical functionality , species diversity ,...
Discussion on interior landscape design
CHEN Xin
2002, 19(4): 412-415.
[Abstract](1667) [PDF](228)
Abstract:
Five types of interior landscape including bonsai displaying , building-attached-planter design , interior landscape , indoor garden , and roof garden were classified in this paper according to the scope of work to perform, the scale and complexity o...
Embodiment of the beauty of drawing lines in Chinese ancient landscape garden
WANG Yang
2002, 19(4): 416-419.
[Abstract](1235) [PDF](241)
Abstract:
Chinese classical gardens fully elaborate the expressiveness of lines of Chinese drawings in their overall arrangement , setting up rockeries , plastic water and the modelling of buildings .Their structure , space , level , rhythm and decorating styl...
Models to predict price of forest land
TANG Zhao-yuan, ZHANG Wen-long, ZHENG Li-zhen
2002, 19(4): 420-425.
[Abstract](1431) [PDF](171)
Abstract:
Three models to predict price of forest land were set up .Model 1 was relatively simple , in which price of forest land was decided only by its demand and supply .On the basis of model 1 , model 2 concerned price of the related goods , in which price...
Transmission characteristics of nonparaxial Gaussian beam
ZHAO Li-hua, CHEN Jun-lang
2002, 19(4): 426-428.
[Abstract](1281) [PDF](173)
Abstract:
Based on the second order moment of the accurate light intensity at the transverse plane , the Transmissior characteristics of nonparaxial Gaussian beam have been investigated .The beam width follows a simple hyperbolic propagation law .The numerical...
An exploration of reform in examination system and methods in colleges and universities
WANG Jia-lan, YAO Ya-ping
2002, 19(4): 429-432.
[Abstract](1994) [PDF](193)
Abstract:
Through the investigation of the phenomenon of cheating in examinations , the paper analyzes its cause and holds that to solve this problem radically .The key is to strengthen the standard of examination management , adjust the examination time , cha...
Scientific notes
Construction of resource pool for superior plants of Myric rubra and their preliminary expression
WANG Bai-po, WANG Li-zhong, QIU Cheng-ming
2002, 19(4): 433-436.
[Abstract](1313) [PDF](202)
Abstract:
From 1988 to 1992 , selective breeding of superior plants of Myrica rubra was done in seven main producing homes of Zhejiang , such as Cixi , Yuyao , Huangyan etc .31 superior plants were breeded by grafting , which were selected among eight varietie...
Nutritive characteristics of Agroeybe cylindracea mycelia
LU Ming-liang, YING Guo-hua, HU Mei-fang, FAN Liang-min
2002, 19(4): 437-439.
[Abstract](1383) [PDF](103)
Abstract:
In order to improve of culturing in Agrocybe cylindracea , its nutritive characteristics were studied .The result showed that brown sugar was the best carbon sources , and peptone was the best nitrogen source , and the best suitable temperature of it...
Reviews
Review of water and soil conservation technology on commercial forest of ecotype in Zhejiang
SU Zeng-jian, YU Shu-quan, ZHOU Guo-mo
2002, 19(4): 440-445.
[Abstract](1355) [PDF](148)
Abstract:
The climate condition is ascendant and the resource of cash forestis abundant , especially the development of typic commerce forest is very rapid recently in Zheijang Province .But the phenomena of water and soil losses come forth in different degree...
Advance of research in forest environmental value evaluation
WU Wei-guang, WANG Chuan-chang
2002, 19(4): 446-451.
[Abstract](1302) [PDF](254)
Abstract:
The authors conclude and analyses the environmental value views , theories of evaluation , specific methods , achievements on forest environmental value evaluation ;The main views of forest environmental values are labor value view , unility value vi...