Forest and Grassland Resources Research

Investigation and Countermeasures on the Conservation and Management of Coastal Protection Forests in China

WANG Zhuxiong, LAN Siren, MO Mo, AI Chang, HU Changru, WANG Xin

2008,(3): 2-8. doi:10.13466/j.cnki.lyzygl.2008.03.020

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This paper introduces the basic situations and main measures,summarizes and analyzes the problems and reasons on conservation and management of coastal protection forests. Some relevant countermeasures and suggestions are put forward to strengthen conservation and management of coastal protection forests.

Some Considerations on Forest Restoration after the Disaster of Frozen Rain, Snow and Frost in South China

FAN Xibin

2008,(3): 9-11.

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In this paper, the properties of damages on forestryby disasters of frozen rain, snow and frost in southern China is summarized. The main challenges and problems to forestry development caused by this disasterare discussed. And some suggestions on forest restoration are put forward.

Thoughts and Prospect on Forestry Biological Energy Base Development in China

LI Yun

2008,(3): 12-15.

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This paper presents an overview of the construction of energy forest base abroad, and gives the status of its construction in our country. Then this paper provides a forward-looking analysis of the construction in terms of the tree-seed resources, layout of the base distribution, the investment for development, the well-breeding level, the managing model and the corresponding policies. At last, some countermeasures and suggestions are given.

Problems and Countermeasures of the Management of Non-commercial Forests in Yong’an City

WU Fujian

2008,(3): 16-20. doi:10.13466/j.cnki.lyzygl.2008.03.022

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Based on the analysis of the current situation and problems of the management of non-commercial forests in Yong’an City of Fujian Province, the countermeasures for enhancing the management of non-commercial forests have been put forward in this paper.

Discussion about Checking and Accepting of the Project of Conversion of Cropland to Forest

KONG Zhongdong, DU Jishan, ZHAO Wei, KONG Changyi

2008,(3): 21-25.

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Several issues are analysed in the checking and accepting of the project of conversion from cropland to forest on the basis of the experience in the work of management and checking of the project.The important steps for the work are dissected according to the policy and rules of the government. In the meantime, suggestions on improving the checking and accepting work are put forward.

Reflections on the Conservation of the Plant Genetic Resources Used in Forestry in China

ZHI Xin

2008,(3): 26-30. doi:10.13466/j.cnki.lyzygl.2008.03.005

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Based on the concise review of the achievements and the existing problems in the conservation of plant genetic resources used in forestry in China, the principles, objectives, and measures for the conservation were suggested in this article.

Study on Bio-security and Its Related Policy in Forestry

GONG Yumei, WANG Huoran, ZHENG Yongqi, SUN Shu

2008,(3): 31-35. doi:10.13466/j.cnki.lyzygl.2008.03.024

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This paper presents an analysis on the status of forest bio-safety, dynamics of bio-safety research at home and abroad and relative polices and regulations in this regard, and based on the analysis, puts forward recommendations on strengthening institutions, mechanisms, capacity building, assessment on the risk of bio-safety, information exchange and sharing and improving cross-sector coordination.

An Analysis on the Future Development of Forestry Carbon Sequestration Projects in China

YANG Weiyan

2008,(3): 36-38. doi:10.13466/j.cnki.lyzygl.2008.03.025

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a brief overview on the development status of forestry carbon sequestration projects is provided, and then detailed analysis on the necessities of China’s forestry carbon sequestration projects and their prospects for development are put forward.

The Analysis of the Loss Appraisal of Forest Resources

LI Weibing

2008,(3): 39-41.

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With the development of society and economy, the loss appraisal of forest resources is outspreading well. But in practical work there are many issues to be dealt with,for example,the technical method, the economic and teahnical indicators and the qualification identification of appraisal units. The article, combining some typical examples from the perspectives of practical situation, brings forward some suggestions for improving the loss appraisal of forest resources in terms of management and technology.

Study on Forestry Division Method at County Level Based on the Method Combining Stepwise Cluster Analysis and GIS

ZHANG Chao, HUANG Qinglin, ZHANG Xiaohong, TU Nianwang

2008,(3): 42-47.

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The major factors of Yong'an city of Fujian province forestry division were extracted with the method of spatial analysis on the unit of village and forest compartments. The forestry division method at county level based on the method combining Stepwise Cluster Analysis and GIS was discussed, and the basic units of forestry division at the county level was also discussed. The result reflected that the forestry division at the village-unit was appropriate.

Research on the Fitting for the Normal Distribution of Main Tree species’ Diameter in Pangquangou Nature Reserve

FU Liyong, LIU Yingan, ZHANG Haidong

2008,(3): 48-52.

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A practical investigation of the five main tree species’ diameter, Larix Principis-rupprechtii, Chinese Pine, Populus davidiana, Betula platyphylla, Quercus Liaotungensis, is conducted in Pangquangou Nature Reserve. The χ² test and curve distribution trend are used to ascertain if they obey the normal distribution. To the tree species, the maximum likelihood estimation and minimum risk equivariant estimation are used to estimate the unknown parameters. The analysis and comparison of the above two methods show that the result of minimum risk equivariant estimation in fitting the stand forest diameters is more precise. The result indicates that the diameters of Larix Principis-rupprechtii, Chinese Pine, Populus davidiana, Betula platyphylla belong to the normal distribution, while that of Quercus Liaotungensis does not. And dynamic prediction of the diameters of the trees obeying normal distribution in this area is also done.

Analysis on the Functions of Community Structure of Headwater Protection Forests of Yunlong Reservoir, Kunming

JIANG Zhifu, XU Yanhong, YANG Feng

2008,(3): 53-56. doi:10.13466/j.cnki.lyzygl.2008.03.006

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This paper mainly focuses on Yunnan Pine community of Yunlong dam’s headwater conservation forest in Kunming. 15 sampling plots were selected as a typical representative for this type of study in the paper. Through the coordinate comprehensive analysis and classified evaluation, this paper appraised different structures of various communities and their relationship with the functions of ecological water conservation. It concludes that the mixed species of plants and conifer with complex structure of arbor, shrub and lawn were the best water conservation forests, the mixed species of hard broadleaf forests and coniferous forest were inferior to the former, and the single of pure forests of Yunnan Pine with grass were the worst.

Structure Optimization in Overcutting Forest of Spruce-Fir Conifer & Broadleaves Mixed Stands in Changbai Mountains

KANG Xingang, ZHAO Junhui, LIU Yan

2008,(3): 57-62.

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After a lot of plots were established in 1986 and 1987, they were remeasured about every two years, so we used remeasured data 4-14 times. According to these data, volume, density, tree species composition, diameter class, q value, etc. were analyzed. Therefore,structure optimization in sustainable forest management of natural forest was concluded. Then we put forward some suggestions in the management which is leading to the optimal stand structure. It is worth of pointing out that this research is couducive to the target of natural forest management in Changbai Mountains, and has practical significance.

Study on Physiology of Water Stress and Characteristics of Drought Tolerance in Mycorrhizal Fungi Seedlings of Pinus massoniana

YIN Xiaoyang, ZHU Zhongrong

2008,(3): 63-67. doi:10.13466/j.cnki.lyzygl.2008.03.008

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In this paper, characteristics of drought tolerance in mycorrhizal fungi seedlings and uninoculated seedlings of Pinus massoniana are studied by using the artificial simulation method of water stress. By measuring the physiological indicators of chlorophyll content,the activaty of NR、MDA content,the root activity,soil moisture and leaves water content, the characteristics of drought tolerance of mycorrhizal fungi seedlings were explored. At the same time, the likely effectiveness of Pinus massoniana mycorrhizal fungi seedlings was probed under water stress.

Research on Containerized Cuttage Seedling Raising Technology for Betula alnoides

LIU Dechao

2008,(3): 68-71.

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Experiments and research work are conducted on the scions taken from different parts of the mother trees and the scions with different base diameters and different lengths, which have different impacts on rooting rate, number and length of the roots. Comparative tests are also done for the impacts of different cuttings and net bag containers on the rooting rate of the scions. The results show that the scions taken from the middle parts of the mother tree with the base diameter at 2.1mm-3.0mm and the length at 16cm perform best, which yield high rooting rate, more and longer roots.

Improvement of Soil Physical and Chemical Properties after “Conversion of Farmland to Forest” in Alpine Areas——Take Datong County of Qinghai Province as an Example<

MA Zhilin, ZHOU Xincheng, SHI Changqing

2008,(3): 72-76. doi:10.13466/j.cnki.lyzygl.2008.03.010

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Change rule of soil physical and chemical properties after“Conversion of Farmland to Forest” in alpine areas is analysed in this paper. The result shows that various physical and chemical property of soil is influenced clearly by “Conversion of Farmland to Forest”, and the natural woodland is better than converted farmland and farmland for total soil porosities, capillary porosities, maximum water holding capacity, capillary moisture capacity and soil organic matter,total nitrogen,readily available potassium,CEC content,especialy in the top layer of soil,and soil chemical and physical properties are improved obviously with the time length of the converted land.

The Comparative Study about the Carbon Storage of Vegetation and Soil in Three Types of larix gmelinii Forests

YAN Ping, GAO Shuchao, LIU Dejing

2008,(3): 77-81. doi:10.13466/j.cnki.lyzygl.2008.03.011

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The experiment was conducted to determine the carbon Storage of vegetation and soil using the typical sample plot method of forest ecology to obtain field data by means of the Walkley-Black acid digestion method. The carbon storage of vegetation and soil in Larix gmelinii forest in three forest types showed that the carbon density in different organs of the main tree species in Larix gmelini forests ranged from 0.494?6g/g to 0.535?2g/g.The total carbon storage of the ledum palustre larix gnelinii forest, herbage larix gnelinii forest and rhododendron larix gnelinii forest is 173.21t/hm²,207.81t/hm²,118.95t/hm²,in which the amount of carbon fixed by vegetation is 53.41t/hm²、86.23t/hm²、33.76t/hm²,and fixed by soil is 119.80t/hm²,121.58t/hm² and 85.19t/hm². The annual net carbon storage by broadleaved Korean pine forest is 3.61 t/(hm²·a).

Analysis on the Impacts of Forest Certification in Baihe Forest Bureau

YIN Mingfang, LIU Yunru, CAO Wanju

2008,(3): 82-85.

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The paper introduces the certification background of Baihe forest bureau. According to on-the-spot investigation data and data collected from the official website, the paper analyses the impacts of forest certification on economy,society and environment in the forest bureau. The results indicate that in Baihe forest bureau, forest certification can stimulate the economic increase, make social benefits, improve local environment and promote sustainable management of local forests.

Study on the Spatial Distribution Pattern of Larix gmelinii Forest

SHU Mei, TIE Niu, XI Qinghu, LIU Wenjun

2008,(3): 86-89. doi:10.13466/j.cnki.lyzygl.2008.03.012

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Based on the field investigation of selectd sample plots a study on the spatial distribution pattern of 3 types of forests (primitive forest, successive cutting forest and clear cutting forest) of Larix gmelinii was conducted in north Daxing'anling in Inner Mongolia. The results demonstrated that the distribution pattern of 3 typs of forests were all in cluster distribution, but they are different in the extent. The intensity of the clear cutting forest is the biggest, primitive forest is intermidiate and successive cutting forest is the smallest. According to the results of the study, some suggestions about management of Larix gmelinii were put forward.

Study on the Influence of Rainfall in Late August and Winter in Different Years on the Bamboo Shoot Growth and Production Benefit

ZHU Huiyun

2008,(3): 90-92. doi:10.13466/j.cnki.lyzygl.2008.03.002

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Five permenant standard plots of phyllostachys pubeslens are established in the Ronggong village of Shangping township and the changing of the winter-bamboo-shoot’s quantity, individual and morphological growth in the different years and rainfall from the years of 2001 to 2005 are observed. The results indicated that the individual of the winter-bamboo-shoot is smaller and the morphology is more “rat-mouth” shaped,with the rainfall of 70mm.The study will provide a theory reference for production and practice in improving the moistural conditions of phyllostachys pubeslens stands and increasing the benefits.

Discussion on Selection and Configuration of Plants for Greening in Sanming City

HUANG Yunpeng, HUANG Sumei

2008,(3): 93-97. doi:10.13466/j.cnki.lyzygl.2008.03.013

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Based on the analysis of the issues in the selection and configuration of the plants for greening purpose in Sanming City, this paper presents a discussion on the selection and allocation of the plants to be usd for greening in Sanming City.

Study on Energy Conservation and Consumption Reduction in State Forest Farms in Northeast China

ZHANG Lin

2008,(3): 98-99.

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This paper elaborates on the influence of the planning and designs of buildings/structures for the forest farms on energy conservation and consumption reduction and puts forward some environment protection measures which can properly be used for energy conservation and consumpotion reduction in the forest areas in northeast China.

Application of Remote Sensing Model in Biomass Estimation of the Subalpine Coniferous Forest

LI Na, HUANG Congde

2008,(3): 100-104. doi:10.13466/j.cnki.lyzygl.2008.03.014

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Based on the data on forest biomass collected from 68sampling plots and single-band TM data, 18 variables were selected to build the estimation regression model to predict the biomass of the sub-alpine coniferous forest in western Sichuan province. In the establishment of the monadic linear regression, the non-linear regression and the multivariate linear regression model of forest biomass,the results showed that multiple linear regression model was more accurate.

Study on GPS’s Area Precision in Forestry Investigation for Designing

ZHU Xiujie, TANG Xiaoming, LIU Pengju, ZHOU Yufei

2008,(3): 105-107.

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The thesis uses the method of post processing, studies the precision of area precision by the experiments in Forest Inventory for Designing. The results indicate that the area precision could reach ninety-five percent with an area of bigger that 627.7m², and can satisfy the requirement of area precision of forest inventory for designing.

Research of a WEBGIS-based Information Management System for Forestry Resources Calculation

YAN Xiujing, FENG Zhongke, WANG Haoran

2008,(3): 108-113. doi:10.13466/j.cnki.lyzygl.2008.03.017

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Research of a WEBGIS-based information management system for forestry resources calculation gives a seamless integrative system based on MIS and GIS by using the NFI baseline data of Shandong Province and related model of the foundational information and the calculation on the check of forest resources in Shandong Province with the WEBGIS technology and the networking as the core, ASP.NET and the MAPGIS technology as the method and SQL SERVER as the background database, to overlap remote sensing classification results and GIS. In this way it’s possible to achieve forest resources property calculation and forest resources production calculation, compile forest resources calculation and the report form and the forest resources spatial distribution dynamic inquiry and output so as to provide superintendents with basic information to appraise and formulate forest policy and plan.

Construction of the Forest Resources Management Information System Based on GIS

MA Shengli, HUANG Sheng, SHI Xiaohua, JIN Aixian

2008,(3): 114-117. doi:10.13466/j.cnki.lyzygl.2008.03.015

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This article described the design and realization of forest resource management system. Following the techno-route, this system realized the management of forest resource based on GIS, Database and Internet technologies. The users can manage, update, identify, analyse and output forestry resource information according to the system. The system, built on the technology of C/S and B/S, serves three levels of forestry management departments-province, town and county.These systems at the three levels can operate independently and compatibly and perform data sharing, which not only provide a technical platform for forestry management departments but also for the public.

Research and Development of the Forest Products Trade Information Management System

TIAN He, ZHANG Jinning, PAN Wei, CHEN Zhao

2008,(3): 118-120.

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This paper introduces mainly the system design, main functions and the technologies related with system implementation. The establishment of the system will play a fundamental role in the improvement of the management level of the import and export trade of forest products and data quality.

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