2008 Vol. 25, No. 4
2008, 25(4): 405-410.
Abstract:
This research was designed to build a three dimensional（3D） background database for forest fire prevention. A new method using MapX （a coordinate transformation library） and OPEN Graphics Language （OpenGL） along with spatial information，data fusion，a...
This research was designed to build a three dimensional（3D） background database for forest fire prevention. A new method using MapX （a coordinate transformation library） and OPEN Graphics Language （OpenGL） along with spatial information，data fusion，a...
2008, 25(4): 411-416.
Abstract:
To cope with the system efficiency problems caused by mass-data and the centralized management in the forest resources database, the paper analyzed the spatial data management mechanism of ArcSDE spatial engine and worked out the optimization strateg...
To cope with the system efficiency problems caused by mass-data and the centralized management in the forest resources database, the paper analyzed the spatial data management mechanism of ArcSDE spatial engine and worked out the optimization strateg...
2008, 25(4): 417-421.
Abstract:
To estimate the carbon content of bamboo forest based on remote sensing，highly accurate data acquisition is necessary to reduce estimation errors. In this study，enhanced thematic mapper plus（ETM+） remote sensing data was used to extract bamboo forest...
To estimate the carbon content of bamboo forest based on remote sensing，highly accurate data acquisition is necessary to reduce estimation errors. In this study，enhanced thematic mapper plus（ETM+） remote sensing data was used to extract bamboo forest...
2008, 25(4): 422-426.
Abstract:
According to related regionalization principles，this research selected four indices including the area of forest land，shrubbery，non-stocked land and non-forestry land. Based on the principle of fuzzy cluster analysis，67 counties in Zhejiang Province ...
According to related regionalization principles，this research selected four indices including the area of forest land，shrubbery，non-stocked land and non-forestry land. Based on the principle of fuzzy cluster analysis，67 counties in Zhejiang Province ...
2008, 25(4): 427-430.
Abstract:
From Carya cathayensis，23 base pair （bp） primers designed according to a conserved sequence of the APETALA1 （AP1） gene，which has an important function in floral development，were used to amplify a 486 bp fragment by polymerase chain reaction（PCR）. The...
From Carya cathayensis，23 base pair （bp） primers designed according to a conserved sequence of the APETALA1 （AP1） gene，which has an important function in floral development，were used to amplify a 486 bp fragment by polymerase chain reaction（PCR）. The...
2008, 25(4): 431-436.
Abstract:
Using electronic microscopy，ultrastructural changes were observed during differentiation in a secondary xylem vessel element （VE） of Populus deltoides. Results showed that morphological development of VE differentiation was successively divided into ...
Using electronic microscopy，ultrastructural changes were observed during differentiation in a secondary xylem vessel element （VE） of Populus deltoides. Results showed that morphological development of VE differentiation was successively divided into ...
2008, 25(4): 437-441.
Abstract:
In order to breed drought-tolerant cultivars of pear，the effect of drought stress on membrane permeability and antioxidant enzyme systems the four one-year-old Pyrus（pear） species of（P. betulaefolia，P. pyrifolia，P. pashia，and P. pseudopashia） grown i...
In order to breed drought-tolerant cultivars of pear，the effect of drought stress on membrane permeability and antioxidant enzyme systems the four one-year-old Pyrus（pear） species of（P. betulaefolia，P. pyrifolia，P. pashia，and P. pseudopashia） grown i...
2008, 25(4): 442-443.
Abstract:
Meliosma flexuosa var. pubicarpa，a new variety of Sabiaceae from Zhejiang of China，is described and illustrated. This new variety differs from var. flexuosa in its brown pubescent drupes. A key to this variety and its similar taxa is proposed as well...
Meliosma flexuosa var. pubicarpa，a new variety of Sabiaceae from Zhejiang of China，is described and illustrated. This new variety differs from var. flexuosa in its brown pubescent drupes. A key to this variety and its similar taxa is proposed as well...
2008, 25(4): 444-450.
Abstract:
Adjacent grid points were used to obtain data for an analysis of dominant degree. Then，with a plot size of 100 m×100 m，Hegyi’s competition index model for individual trees was used to determine competition within dominant tree populations in an everg...
Adjacent grid points were used to obtain data for an analysis of dominant degree. Then，with a plot size of 100 m×100 m，Hegyi’s competition index model for individual trees was used to determine competition within dominant tree populations in an everg...
2008, 25(4): 451-457.
Abstract:
Davidia involucrata is a relic species of paleotropical kingdom in Tertiary period，belonging to Davidiaceae with a single genus. In recent years，the increase of regional developing projects has led to a sharp decrease of this species in natural popul...
Davidia involucrata is a relic species of paleotropical kingdom in Tertiary period，belonging to Davidiaceae with a single genus. In recent years，the increase of regional developing projects has led to a sharp decrease of this species in natural popul...
2008, 25(4): 458-463.
Abstract:
For the evergreen broad?鄄leaved forest in National Nature Reserve of Mount Jiulianshan，Jiangxi Province，plot sampling（75 plots of 10 m × 10 m） and importance value were used to quantify species and describe their structural characteristics. Results o...
For the evergreen broad?鄄leaved forest in National Nature Reserve of Mount Jiulianshan，Jiangxi Province，plot sampling（75 plots of 10 m × 10 m） and importance value were used to quantify species and describe their structural characteristics. Results o...
2008, 25(4): 464-468.
Abstract:
Soil seed bank in Cryptomeria fortunei stand had never been studied before，but the status of the forest’s soil seed bank has important influence on the forest’s development. The soil seed bank and regeneration of the old-growth Cryptomeria fortunei o...
Soil seed bank in Cryptomeria fortunei stand had never been studied before，but the status of the forest’s soil seed bank has important influence on the forest’s development. The soil seed bank and regeneration of the old-growth Cryptomeria fortunei o...
2008, 25(4): 469-474.
Abstract:
An experiment was conducted in the evergreen broad-leaved forest （the primitive tree species were Castanopsis wattii and Lithocarpus xylocarpus） of Ailaoshan，Yunnan Province to evaluate its water interception capability and accumulate basic data for ...
An experiment was conducted in the evergreen broad-leaved forest （the primitive tree species were Castanopsis wattii and Lithocarpus xylocarpus） of Ailaoshan，Yunnan Province to evaluate its water interception capability and accumulate basic data for ...
2008, 25(4): 475-480.
Abstract:
To enhance absorption of air pollution within city landscapes，resistance and absorption of 38 important landscaping plant species in Zhejiang Province were measured after subjection to gaseous hydrogen fluoride（HF） fumigation. A linear correlation an...
To enhance absorption of air pollution within city landscapes，resistance and absorption of 38 important landscaping plant species in Zhejiang Province were measured after subjection to gaseous hydrogen fluoride（HF） fumigation. A linear correlation an...
2008, 25(4): 481-485.
Abstract:
To research characteristics of changes in negative air ion concentration and their relationships with environmental factors in the Mount Tianmu Nature Reserve，measurements were made with an air ion measuring instrument，a microcomputer laser dust coll...
To research characteristics of changes in negative air ion concentration and their relationships with environmental factors in the Mount Tianmu Nature Reserve，measurements were made with an air ion measuring instrument，a microcomputer laser dust coll...
2008, 25(4): 486-490.
Abstract:
Growing altitude and bamboo growth history were used to analyze the status and the evolution of soil fertility according to four aspects，namely 1） water-holding capacity，2） soil acidification in four Phyllostachys pubescens bamboo stands （on a valley...
Growing altitude and bamboo growth history were used to analyze the status and the evolution of soil fertility according to four aspects，namely 1） water-holding capacity，2） soil acidification in four Phyllostachys pubescens bamboo stands （on a valley...
2008, 25(4): 491-496.
Abstract:
Research on the spatio?鄄temporal variation law of soil water content in a subsidence area，especially in a semi?鄄arid mining area，was conducted to help reestablish a sound ecological system. In this study，water loss in sandy soils of the Bulanta coal ...
Research on the spatio?鄄temporal variation law of soil water content in a subsidence area，especially in a semi?鄄arid mining area，was conducted to help reestablish a sound ecological system. In this study，water loss in sandy soils of the Bulanta coal ...
2008, 25(4): 502-506.
Abstract:
Insect communities in four Eucalyptus plantations （Ⅰ-Eucalyptus in Xiaozhong Village of Julin Township，Ⅱ-Eucalyptus in Anding Village of Huangguayuan Township，Ⅲ-Eucalyptus-Azadirachta indica in Maoyi Village of Laocheng Township，and Ⅳ-Eucalyptus-Leuc...
Insect communities in four Eucalyptus plantations （Ⅰ-Eucalyptus in Xiaozhong Village of Julin Township，Ⅱ-Eucalyptus in Anding Village of Huangguayuan Township，Ⅲ-Eucalyptus-Azadirachta indica in Maoyi Village of Laocheng Township，and Ⅳ-Eucalyptus-Leuc...
2008, 25(4): 507-512.
Abstract:
From 18 January to 21 February 2007，the feeding site selection of ring-necked pheasants （Phasianus colchicus） was surveyed in the National Nature Reserve of Mount Qingliangfeng in Zhejiang Province. Representative sampling method was used to find the...
From 18 January to 21 February 2007，the feeding site selection of ring-necked pheasants （Phasianus colchicus） was surveyed in the National Nature Reserve of Mount Qingliangfeng in Zhejiang Province. Representative sampling method was used to find the...
2008, 25(4): 513-516.
Abstract:
Hiking arises from people longing for return to nature and tradition. At present，hiking is a spontaneous activity with little theoretical research. Based on the very few existing research in China，the paper classified the hiking routes and proposed f...
Hiking arises from people longing for return to nature and tradition. At present，hiking is a spontaneous activity with little theoretical research. Based on the very few existing research in China，the paper classified the hiking routes and proposed f...
2008, 25(4): 517-521.
Abstract:
Trophic levels of Honghu Lake in Hubei Province were determined for more effective referencing and decision-making with lake management. Total phosphorus（TP），total nitrogen（TN），chemical oxygen demand for manganese，secchi disk depth（SD），and chlorophll...
Trophic levels of Honghu Lake in Hubei Province were determined for more effective referencing and decision-making with lake management. Total phosphorus（TP），total nitrogen（TN），chemical oxygen demand for manganese，secchi disk depth（SD），and chlorophll...
2008, 25(4): 497-501.
Abstract:
This objective was to provide basis for the biological extracting of the spinning bamboo fiber. The strain ZNLD-18，separated from decaying bamboo，which was able to decompose selectively the bamboo lignin，was identified by polymerase chain reaction （P...
This objective was to provide basis for the biological extracting of the spinning bamboo fiber. The strain ZNLD-18，separated from decaying bamboo，which was able to decompose selectively the bamboo lignin，was identified by polymerase chain reaction （P...
2008, 25(4): 522-526.
Abstract:
Moso bamboo（Phyllostachys pubescens） is a fast growing bamboo species with important economic and ecological value. The objective is to grasp of the spatio-temporal dynamics of photosynthesis in moso bamboo leaf. In autumn 2006，a Li-6400 portable pho...
Moso bamboo（Phyllostachys pubescens） is a fast growing bamboo species with important economic and ecological value. The objective is to grasp of the spatio-temporal dynamics of photosynthesis in moso bamboo leaf. In autumn 2006，a Li-6400 portable pho...
2008, 25(4): 527-531.
Abstract:
Carya cathayensis is famous because its nut has rich nutrition，especially in oil and protein. We explore the nut’s growth process in order to obtain the law of oil accumulation. From May to September in 2006，we picked 150－300 nuts from 6 sample trees...
Carya cathayensis is famous because its nut has rich nutrition，especially in oil and protein. We explore the nut’s growth process in order to obtain the law of oil accumulation. From May to September in 2006，we picked 150－300 nuts from 6 sample trees...
2008, 25(4): 532-537.
Abstract:
Total DNA was extracted from young，fully opened leaves of Carya cathayensis（hickory） by an improved cetyl trimethylammonium bromide（CTAB） method and a CTAB-silicon method，based on which an amplified fragment length polymorphism（AFLP）analysis system f...
Total DNA was extracted from young，fully opened leaves of Carya cathayensis（hickory） by an improved cetyl trimethylammonium bromide（CTAB） method and a CTAB-silicon method，based on which an amplified fragment length polymorphism（AFLP）analysis system f...
2008, 25(4): 538-542.
Abstract:
Populus tomentosa is the main tree species for afforestation in north China. To maintain its productivity，annual changes in leaf nutrient concentrations of N，P，K，Ca，and Mg with 11 clones of triploid P. tomentosa （S1 through S9，S11，and S12） were studi...
Populus tomentosa is the main tree species for afforestation in north China. To maintain its productivity，annual changes in leaf nutrient concentrations of N，P，K，Ca，and Mg with 11 clones of triploid P. tomentosa （S1 through S9，S11，and S12） were studi...
