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Study on the Information Resources of Forest Sourses and the Mechanism of Collecting Information

Author: OuXiCheng
Tutor: ZhangGui
School: Central South University of Forestry Science and Technology
Course: Forest Management
Keywords: Forest resources Source of information Information collection mechanism Information Classification
CLC: S757
Type: Master's thesis
Year: 2010
Downloads: 82
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Abstract


The forestry information technology requirements for the integrity of the forest resource information collection and to avoid duplication acquisition, and strive to achieve an acquisition, use many times \But in reality, the forest resources information source utilization level is low, resulting in a serious waste of social resources. Information resources transverse can not be shared, vertical through the formation of \Forest resources information source and information gathering mechanisms, with important theoretical and practical significance to improve the level of application of forest resource information sources and the effective use of the level, to avoid repeated forest resource information acquisition process of forest resource information acquisition, saving manpower, material and financial resources of the forest resource information collection. This paper analyzes the study more representative and universal characteristics of the 15 forest resource information source, the classification of forest resources information, the use of information theory, the amount of information analysis and information on the intersection of research, established on the basis of the forest resources, information collection mechanism , specific research contents and conclusions are as follows: (1) By consulting the relevant literature, participation in forest resources planning and design practice, research more representative 15 forest resources information source, are national continuous forest inventory information source Φ,, forest resources planning and design information source Φ:, the forestry pest survey information source Φ3, the the forest stand fire investigation information source Φ4, wildlife resources survey information source Φ5, to create a forest performance verification information source Φ. Logging quota implementation of inspection information source Φ7, reclaimed forestland check the source of information (1) Forest Division defined recognized verification with the management and protection of verification of information sources Φ9, key forestry project monitoring information source 1. , The Φ11, of old and valuable trees survey information source wetland resource monitoring information source Φ12, forest ecology positioning monitoring information sources Φ13, desertification, desertification and rocky desertification the Land monitoring information source Φ14 and forestry scientific research projects. Study and analysis of the characteristics of the purpose of the task of the various sources of information, collection methods, a collection of objects, the competent authorities, the acquisition cycle and acquisition range. (2) on the basis of summing up the results of previous studies, based on the principles and methods of information classification, forest resource information is divided into geographical and soil information class X1, X2, of forest resources information class forest ecological functions class X3 Forest Disaster Information class X4, the wetland resources informational X5, informational X6 wildlife resources, land degradation informational X7, forest management, management information class X8 eight basic categories of information, and to determine the sources of each type of information belongs. STATS various forest resource information source (3) the information contained in the class, i.e. the probability of each state appears, this calculation of the amount of information of the respective information source. Come to the forest resources information source informative rankings: Φ1 gt; Φ2 gt; Φ6 gt; Φ13 gt; Φ9 gt; Φ5 gt; Φ8 gt; Φ7 gt; Φ12 gt; Φ4 gt; Φ10 gt; Φ3 gt; Φ11 gt; Φ14 National Forest resources continuous investigation of the source of information contained in the largest amount of information, the amount of information Φ1 = 1.670, forest resources planning and design information source the amount of information Φ2 = 1.642. Consecutive national forest resources inventory and comprehensiveness of the planning and design of the forest resources survey information collection in the entire forest resource information collection system, and the highest integrity, these two types of forest resources information collection system is the basis of the development of our country is relatively perfect, more comprehensive technical forestry investigation. Other types of information sources are mainly targeted relatively strong focus on forest resources of a class of information collection. Analysis of the amount of information of the source of information of the forest resources, to provide the basis for the establishment of forest resources, information collection mechanism. (4) to study the information sources intersection between the various sources of information, there is information on the intersection, that is a lot of repeated information collected, especially forest resources planning and design investigation between the source and other information can be effectively reused. more information. (5) the forest resources, information collection mechanism into the decision-making mechanism, operating mechanism, information processing and analysis mechanisms and management and service mechanism. Various sub-mechanisms as a step-by-step run cycle interlocking. (6) of the current development of China's forest resources investigation soon of the forest resources information source is far from covering all forest resources information source and should continue to conduct in-depth analysis of other forest resources information source.

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CLC: > Agricultural Sciences > Forestry > Forest management,forest measurement science, forest management > Forest Management
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