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Research On The Determination Of Wood Carbon Content Rate And Carbon Storage Database

Posted on:2014-12-20Degree:DoctorType:Dissertation
Country:ChinaCandidate:W L YuFull Text:PDF
GTID:1263330401479637Subject:Wood science and technology
Abstract/Summary:PDF Full Text Request
In the face of the global climate change, human beings could reduce its impact to human survival from the two aspects of coping and relief. It is an effective approach to cope and relieve the global climate change from indirect emission reduction with carbon sequestration of forest woods, the features of this method are the efficiency, environmental protection, inexpensiveness and high feasibility.The forest is the main body of the land ecological system, which plays an important part to the function of land ecological system’s balance keeping. The trees are the main biomass of forest system. It could release the oxygen from the photosynthesis to absorb carbon dioxide from the atmosphere. The wood is coming from the trunk, is the main body of the trees. It has a important value to the forest ecological benefits’ acquirement and the sustainable development of ecological environment through the estimation of wood carbon reserves by the accurate measurement of wood carbonic contents rate. It is also has a fundamental significant to the national climate’s negotiations’achievements by the predication of wood carbon reserves.The main study objects are the wood of8main trees species. We have went on the work with the material collection and compiling, outdoor investigation and sample acquirement and laboratory testing, then we studied every kinds of trees of its carbon contents rate with the methods of lossless and carbonic contents rate testing, to discuss the metering relationship between the carbonic contents rate of the wood and wood carbon reserve, put the conclusion that we would sum up the data of wood carbonic contents rate by the method of database, in order to provide the data’s base to the future relative studies. In this paper,the following items are studied.(1) Go further with the analysis of the relationship between the wood biological attribute change and its growth environment, to confirm the active significance of the influence of wood to the global climate change in the aspect of material. The result displayed that it is a kind of indirect protection of the wood usage. This conclusion is summarized by the investigation of the relationship between the wood and human environment. The preconceived energy conservation effect would be achieved only as if the reasonable coordinated use of the wood and other material be realized. The national carbon emission negotiation should be sited in the study of carbon sequestration, and the carbon emission inventory should be established in the light of its own national conditions.(2) To analyze the basic principle through the way of the basic carbonic contents rate’s measurement of Maoershan foresty main trees species from the several aspects of diameters, exposures and lighting direction. To analyze the integral carbonic contents rate of all kinds of trees species’different diameter, sunny slope and illumination direction of Maoershan foresty, and explore the regular laws during the study period. We have divided the8trees species into2group, to take two kinds of softwood and two kinds of broadleaf’s forest as a group, and the other4kinds of tree species wood to form the other group from the sample of15cm diameter, then analyzed the relative regular laws of softwood and the broadleaf with different diameter, exposure and lighting direction from the data. Though the average value of all kinds of trees sample and it growth condition to make the contrastive analysis, in order to get the carbonic contents rate’s changing laws of softwood and broadleaf wood in the increasing of the diameters and tree-age.(3) To calculate the wood carbon reserves of main trees species on the Maoershan by the basic method of forest carbon reserves calculation. All kinds of the trees’total wood carbon reserves of Maoershan foresty would be calculated by the computational formula of the stand volume, the wood density and the carbonic contents rate as well as the wood carbon reserves, in order to roughly estimate the national wood carbon reserves of the years of2020and2050. In the sake of limited conditions, the two factors of all kinds of wood density and carbonic contents rate has not been field investigation, but adopted the statistical data’s average value method to go with the final calculation, and comprehensive calculated the national forest growing stock without the breakdown calculation of every trees species. Therefore, the calculation results may have the existing of certain deviation. However, the experimental thought would be with an expectation that taking this sample to get a general idea. In this case, based on the though of method, the future study would go further with the accurate results with the detailing every metering factors.(4) To found the database based on the8main trees species" data of Maoer forest field from the aspect of wood carbon contents rate. Though the database’s establishment to establish the numeric set by the method of combining like terms of the basic data of current existing literature and material which is related to the wood carbon reserves, this method would bring convenience to the swift and accurate acquirement in the data site work, thus enhances the working efficiency of scientific research. The data platform’s establishment would be better with audio-visual effect that realizes the excellent combination of pictures and the corresponding essays, the data would be with better definition, the classification would be more meticulous, the operable sense would be more available. Our nation’s wood and carbon reserve which are related to the quantitative index of climate negotiation through the establishment of national wood carbon reserve database, thus it would provide guarantee to the certain initiative and benefits in the climate negotiation of our country. The database’s basic principle, interface and retrieval/inquire function has been introduced at last.
Keywords/Search Tags:Wood, Carbon storage, Carbonic contents rate, Carbon reserves, Database
PDF Full Text Request
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