2002 Vol. 19, No. 2

Articles
Effects of popularizing the practices of “three prunings plus one improvement” and fruit preservation in Citrus ponki
DAI Wen-sheng, WANG Bai-po, SHAO Xin-hua, WU Gao-yang, LIN Qi-sheng
2002, 19(2): 113-117.
[Abstract](1368) [PDF](199)
Abstract:
In view of such questions as small size , poor quality and low commodity rate in the production of Citrus ponki in Quxian County area , practices including seedling , branch and fruit pruning , soil improvement by adding organic fertilizers (three pr...
Hot pressing technology of fast-curing for cement particle board
YE Liang-ming, JIANG Zhi-hong, BAO Bing-fu, YU Xue-jun, YU You-ming
2002, 19(2): 118-121.
[Abstract](1395) [PDF](215)
Abstract:
How hot pressing temperature , hot pressing time and the additive level of sodium silicate acted the properties of cement particle board were made by fast-curing hot pressing , using ternary quadratic orthogonal rotation design when cement/wood was 2...
Synthesis of low toxic urea formaldehyde resin
YU Hong-wei, FU Shen-yuan, HUAI Min, SHAO Qian-jun, WEN Gui-feng, HE Li-ping
2002, 19(2): 122-126.
[Abstract](1532) [PDF](214)
Abstract:
In order to prepare low toxic UF resin for making plywood , the article adopts different modifier and advanced technological design .The results show that a urea formaldehyde resin which has low content of free formaldehyde (3 g kg-1) is developed on...
Community flora of Chimonanthus praecox in Zhejiang
LI Gen-you, LOU Lu-huan, JIN Shui-hu, CHEN Zheng-hai, LIU An-xin, SUN Meng-jun
2002, 19(2): 127-132.
[Abstract](1713) [PDF](185)
Abstract:
Based on the investigation and textual reseach , it is affirmed that there is wild Chimonanthus pracox on the common boundary of Lin'an City and Fuyan City .There are 511 species of tracheophyta belonging to 332 genura and 117 families .In this paper...
On species diversity of secondary successional community of evergreen broad-leaved forests at Mount Tiantai of Zhejiang
JIN Ze-xin
2002, 19(2): 133-137.
[Abstract](1285) [PDF](205)
Abstract:
Studies of the secondary successional species diversity of the evergreen broad-leaved forests at Mount Taintai of Zhejiang Province were conducted by using such index as species richness , species diversity and community evenness .The result shows th...
Community ecology of secondary vegetation in Qiandao Lake , Zhejiang Province
YU Shu-quan, LI Cui-huan, JIANG Li-yuan, XIE Ji-quan
2002, 19(2): 138-142.
[Abstract](1302) [PDF](221)
Abstract:
The community types in Qiandao Lake were classified into warm coniferous forest , conifer and broadleaved mixed forest , deciduous broad-leaved forest , evergreen broad-leaved forest by the two-dimention polar ordination .The species diversity index ...
Growth and biomass of pure stands of Betula luminifera and Cunninghamia lanceolata and their mixed forest
LIU Fang
2002, 19(2): 143-147.
[Abstract](1543) [PDF](211)
Abstract:
The stand growth , biomass , structure and soil fertility of the mixed model of Betula luminifera and Cunninghamia lanceolata and their pure stands at fifth year in Nanping of Fujian were studied .The results showed that the productivity of pure stan...
Spatial distribution pattern of Chinese fir and its associated tree species in Mount Hutuo
CAO Guang-qiu, LIN Si-zu, CAO Zi-lin, DING Bi
2002, 19(2): 148-152.
[Abstract](1376) [PDF](171)
Abstract:
The spatial distribution pattern of Cunninghamia lanceolata (Chinese fir)and its associated tree species in Mount Hutou were analyzed using different indices of aggregated intensity .The result showed that spatial distribution pattern of different tr...
Analysis on nutrient elements in litter under different forests in Huzhou City
YU Yi-wu, WU Jia-sen, JIANG Pei-kun, WU Xiao-hong
2002, 19(2): 153-156.
[Abstract](1440) [PDF](110)
Abstract:
Chemical elements of litter under various types of forests in Huzhou , Zhejiang were analyzed .It was shown that the amount of elements had evident discrepancy among five kinds of litter .Litter Cunninghamia lanceolata contained relative higher conte...
Determining method for content of hypocrellin A in Shiraia bambusicola
LIN Hai-ping, CHEN Hong, YE Yong, WU Lin-sen
2002, 19(2): 157-160.
[Abstract](1326) [PDF](190)
Abstract:
The absorbing curve of hypocrellin A and effect of alcohol concentrations , immersed time , stomata granularities , alcohol dosages on the extraetion of hypocrellin A were studied in the paper .The results showed that the best scheme of determining t...
Selection of culture medium of Beauveria bassiana parasitized in Strobilomyla and inspection of pathogen in soil
SHI Hong-xia, HU Ming-long, YAN Jun
2002, 19(2): 161-165.
[Abstract](1466) [PDF](217)
Abstract:
The culture medium for Beauveria bassiana which parastied in Strobilomyla spp .was selected based on Doberski culture medium .This media had high selection for Beauveria bassiana .Use of this media could collect back 79.5 % of the conidia of Beauveri...
Preliminary study on biological characteristics of Pleonomus canaliculatus and toxicity test of Metarhizium anisopliae on it
XU Hua-chao, WU Hong, ZHOU Yun-e, ZHANG Hui
2002, 19(2): 166-168.
[Abstract](1162) [PDF](205)
Abstract:
Field survey and indoor observation indicate Pleonomus canaliculatus has one generation two or three years , and its larva or adults hibernates in soil .Two solution concentrations of Metarhizium anisopliae Mf2 spores , i .e .1.0 108 sporesmL-1 and 1...
Discussion on traditionity and modernity of urban design
LIUWen-ye, WANG Xiang-jun
2002, 19(2): 169-172.
[Abstract](1712) [PDF](188)
Abstract:
The most profound characteristic of the city is its culture character , while culture is based on the tradition profoundly .Contemporary , the traditional urban pattern is not adapted to the modern development of the city any longer .Exemplified by S...
Construction and perfection on mechanism of public-participation in environmental protection
CHEN Li-qing, ZHANG Ming-shen, HU Yun-jiang
2002, 19(2): 173-177.
[Abstract](1723) [PDF](277)
Abstract:
The environmental problem has become more severe in China today , which is partly due to the weakening of function of local governments in protecting the environment and the lack of the public participation system.Therefore , the paper focuses on the...
Application of remnant GM (1 , 1) to prediction of content of sulfur dioxide in atmosphere
JIANG Wen-Wei, GUAN Yu, WANG Zu-liang, PAN Jun-hui
2002, 19(2): 178-181.
[Abstract](1624) [PDF](351)
Abstract:
By the theory and method of GM (1 , 1)model , the grey remnant equation x (t +1) =-0.107 432e-0.095 872 t +0.123 917 was established to predict SO2 content of atmosphere in Lin'an City .Absolute value of relative error between prediction and observan...
Positive analysis on town and township enterprises joining in agricultural industrilization in Lin'an City
XU Xiu-ying, SHEN Yue-qin, GU Lei, WU Wei-guang
2002, 19(2): 182-186.
[Abstract](1125) [PDF](174)
Abstract:
Town and township enterprises joining in agricultural industrilization is objective needs of the development of agricultural industriluzation and is realistic demands of the development of town and township enterprises themselves and is an important ...
A probe on participant system to forest resources management for rural farmer household
HU Yong-xu, WEI Xin-liang
2002, 19(2): 187-192.
[Abstract](1748) [PDF](202)
Abstract:
Farmer-managed forest is the main body of rural forest resources in China .According to the investigating and analyzing on the characteristics and problems of farmer household forest management in rural area , the author thought that farmer-forests h...
Statistics and analysis of abstracts in forestry sci-tech periodicals
ZHANG Xiao-guang, WU Wei-gen
2002, 19(2): 193-197.
[Abstract](1129) [PDF](137)
Abstract:
Data Norm for Retrieval and Evaluation of Chinese Academic Journal (CD) regards abstracts as a necessity in sci-tech academic periodicals .In order to understand status quo of different type of abstracts , statistics was carried out concerning the nu...
Nonparaxial propagation factors of two typical polarized light beams
ZHOU Guo-quan
2002, 19(2): 198-201.
[Abstract](1296) [PDF](152)
Abstract:
The nonparaxial propagation factors of two typical polarized light beams are analyzed and calculated by using nonparaxial vetorial moment thory in this paper .It is shown that under proper conditions , the beam propagation factors can be smaller than...
Scientific notes
Micromectin toxicity test and analysis on termite
HUANG Bi-heng, YUAN Rong-lan
2002, 19(2): 202-204.
[Abstract](2345) [PDF](164)
Abstract:
Micromectin is a new type of super-high-effective bio-insecticides .The contact toxicity of mecromectin to termite (Coptotermees formosanus Shiraki)was tested by the topical application , and analyzed by method of least squares and method of probit a...
Bionomics and chemical control of Kuwanaspis phyllostachydis
Lou Jun-fang, Hu Guo-liang, YU Cai-zhu, ZHAO Wen-wei
2002, 19(2): 205-207.
[Abstract](1733) [PDF](164)
Abstract:
Kuwanaspis phyllostachydis , damaged on shoot bamboo (such as Phyllostachys praecox and Ph . prominens)used as vegetable in Lin'an City , Zhejiang Province , P .R .China , overwinters in the female adults with fertile eggs in shell on bamboo culms , ...
Technology of bond joint Chinese fir-core blockboard
SHEN Zhe-hong, FANG Qun, QIAN Jun
2002, 19(2): 208-210.
[Abstract](1729) [PDF](208)
Abstract:
A single-factor experiment was carried to get appropriate production technology of bloockboard with Chinese fir core .The results showed that hot-pressing temperature , core strip resin content and core strip moisture content had effects on blockboar...
Approach to plant landscape building in Wuxie scenic spot
CHEN Zhao-ying, ZHANG Jian-he
2002, 19(2): 211-213.
[Abstract](1657) [PDF](207)
Abstract:
Wuxie scenic spot in Zhuji City of Zhejiang Province , is famous for its waterfall , mountain peak and forest .Its vegetation grows very well , but its season appearance varies a little .The paper links with the condition of plant landscape and the p...
On water resource and its protection
2002, 19(2): 214-216.
[Abstract](1261) [PDF](197)
Abstract:
The states quo of water resource in China is discussed , the causes of shortage and pollution in water resource are given , and the importance to cherish and protect the fresh water resource is made in the view of relationship between humanity civili...
Reviews
Progress on sex identification of dioecism in Ginkgo biloba
CHENG Xiao-jian, WANG Bai-po, ZHENG Bing-song, FANG Qun, CHEN Jin-ming
2002, 19(2): 217-221.
[Abstract](1603) [PDF](201)
Abstract:
Studies on the characteristics of the female and male plants and sex identification of dioecism in Ginkgo biloba were summarized and classified into 7 approaches in light of measures taken .The way of sex identification was comparitively hander by mo...
Construction and prospect of digital forestry in China
FANG Lu-ming, CHEN Qing-juan, ZHOU You-fa
2002, 19(2): 222-226.
[Abstract](1883) [PDF](302)
Abstract:
The goal of digital earth is to realize the sustainable development of global economy , society , recourses and environment .It emphasizes the digital standards of information and the utilization and development of information resources .Based on the...