Study On Economic Evaluation,Classification And Graduation Of Forest Land Resources

the land is the foundation that the mankind depends on for existence, allhuman activities have direct or indirect contacts with land. The land is not only important natural resources and basic materials of developing agricultural production, also indispensable material conditions that do good to industry, transport, urban construction, travel and economy in the whole country. Land evaluation mainly assess the land quality according to natural productivity or other respect potentiality of land. Important task of the land evaluation is deeply analyzing the effect of all kinds of factors on the growth of crop, herb, forest, or other non -agricultural utilization of land, making every effort to obtain the quantification index, drafting an objective and feasible evaluation scheme, and assess the quality (potentiality, suitable foring, etc.) of the land scientifically.The article discuss the basic knowledge such as definition, characteristic and importance of forest land ' then analyzing basic concept and principle of forestland classification, concept and theoretical foundation (soil fertility theory, land rent theory, position theory, system scientific theory and sustainable development theory and principle(comprehensive principle, leading principle, combining between qualitative and quantitative analysis principle Regional difference principle )is put forward .Then interaction between classification and graduation in the forest land and its steps is analyzed. Method system of graduation and classification in the forestland is put forward including sureness of classification unit of forest land, select of its index (natural and social-scientific index), its weight and computing method of total points of classification unit.Drawing lessons from the concept of land economic evaluation, the concept of forest land economic evaluation and its economic characteristic and its theories such as productivity theory, regional theory, land rent theory and demand theory are put forward .On this basis, method system in the forest land economic evaluation is summed up, namely according to different characteristic of forest different methodology is put forward. A series of procedures carried on in the economic evaluation of forestland.Based on the classification and economic of forestland, the article takes forest land of mason pine for raw material papermaking in forest farm of china fir of Taining of Fujian province as example and carries on the study on classification and economic evaluation in the forest land of mason pine for raw material papermaking. The article regards subcompartment as the unit of classification, and based on the principles of selecting classification indicators such as having Remarkable effect on the quality of forest land; Its properties are more steady; ? Being able to get dates by using materials, for instance the materials of overall survey of soil, the materials of forest land survey, topographic mapand materials of water conservancy and so on. Conforming with the operator's purpose of management ,management type and forest Dhaving different effect on different unit of classification, selects indicators of forest land classification including natural indicators (Thickness of humus layer, Thickness of soil layer, slope, slope location and elevation) and social-economic indicator(logging distance).It adopts the graduation law of 9-graduation to quantitize all indicators and uses AHP to formulate judgment matrix of indicators in order to define the indicators weight. Then calculating the total points of each unit, the classification is defined. The mason pine forestland is divided in the article as 4 grades.Regarding subcompartment as the unit of evaluation, the article uses the Expecting-price law of forestland to evaluate each graduated forest land. On the basis of its price, it proves if indicators of classification are rational and method system is feasible. Through the study on classification and economic evaluation of mason pine forest land for raw materials papermaking, it proves the pr...