Dynamics models and modeling of tree stand development
Brief analysis of scientific works in Russia and in the CIS over the past 100 years. Logical and mathematical models consider the conceptual and show some of the results of their verification. It was found that the models include different laws and the parameters, the sum of which allows you to divi...
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| Format: | Article |
| Language: | English |
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Russian Academy of Sciences, Siberian Branch Publishing House
2015-04-01
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| Series: | Сибирский лесной журнал |
| Subjects: | |
| Online Access: | http://xn--80abmehbaibgnewcmzjeef0c.xn--p1ai/upload/iblock/202/202f4f9c48d7ae5669a4f0b26c612c0d.pdf |
| _version_ | 1819144216641536000 |
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| author | M. V. Rogozin G. S. Razin |
| author_facet | M. V. Rogozin G. S. Razin |
| author_sort | M. V. Rogozin |
| collection | DOAJ |
| description | Brief analysis of scientific works in Russia and in the CIS over the past 100 years. Logical and mathematical models consider the conceptual and show some of the results of their verification. It was found that the models include different laws and the parameters, the sum of which allows you to divide them into four categories: models of static states, development models, models of care for the natural forest and models of cultivation. Each category has fulfilled and fulfills its tasks in economic management. Thus, the model states in statics (table traverse growth) played a prominent role in figuring out what may be the most productive (full) stands in different regions of the country. However, they do not answer the question of what the initial states lead to the production of complete stands. In a study of the growth of stands used system analysis, and it is observed dominance of works studying static state, snatched from the biological time. Therefore, the real drama of the growth of stands remained almost unexplored. It is no accident there were «chrono-forestry» «plantation forestry» and even «non-traditional forestry», where there is a strong case of a number of new concepts of development stands. That is quite in keeping with Kuhn (Kuhn, 2009) in the forestry crisis began – there were alternative theories and coexist conflicting scientific schools. To develop models of stand development, it is proposed to use a well-known method of repeated observations within 10–20 years, in conjunction with the explanation of the history of the initial density. It mounted on the basis of studying the dynamics of its indicators: the trunk, crown overlap coefficient, the sum of volumes of all crowns and the relative length of the crown. According to these indicators, the researcher selects natural series of development stands with the same initial density. As a theoretical basis for the models it is possible to postulate the general properties of the stand, for example, constants for the mass of needles and crown that have a clear biological meaning, with limits of values of these indicators in the process of completing canopy biomass. |
| first_indexed | 2024-12-22T12:38:37Z |
| format | Article |
| id | doaj.art-58a8928632754f3fbac655e2ebfc9cff |
| institution | Directory Open Access Journal |
| issn | 2311-1410 2312-2099 |
| language | English |
| last_indexed | 2024-12-22T12:38:37Z |
| publishDate | 2015-04-01 |
| publisher | Russian Academy of Sciences, Siberian Branch Publishing House |
| record_format | Article |
| series | Сибирский лесной журнал |
| spelling | doaj.art-58a8928632754f3fbac655e2ebfc9cff2022-12-21T18:25:31ZengRussian Academy of Sciences, Siberian Branch Publishing HouseСибирский лесной журнал2311-14102312-20992015-04-0122557010.15372/SJFS20150205Dynamics models and modeling of tree stand developmentM. V. Rogozin0G. S. Razin1Natural Sciences Institute of Perm State National Research UniversityNatural Sciences Institute of Perm State National Research UniversityBrief analysis of scientific works in Russia and in the CIS over the past 100 years. Logical and mathematical models consider the conceptual and show some of the results of their verification. It was found that the models include different laws and the parameters, the sum of which allows you to divide them into four categories: models of static states, development models, models of care for the natural forest and models of cultivation. Each category has fulfilled and fulfills its tasks in economic management. Thus, the model states in statics (table traverse growth) played a prominent role in figuring out what may be the most productive (full) stands in different regions of the country. However, they do not answer the question of what the initial states lead to the production of complete stands. In a study of the growth of stands used system analysis, and it is observed dominance of works studying static state, snatched from the biological time. Therefore, the real drama of the growth of stands remained almost unexplored. It is no accident there were «chrono-forestry» «plantation forestry» and even «non-traditional forestry», where there is a strong case of a number of new concepts of development stands. That is quite in keeping with Kuhn (Kuhn, 2009) in the forestry crisis began – there were alternative theories and coexist conflicting scientific schools. To develop models of stand development, it is proposed to use a well-known method of repeated observations within 10–20 years, in conjunction with the explanation of the history of the initial density. It mounted on the basis of studying the dynamics of its indicators: the trunk, crown overlap coefficient, the sum of volumes of all crowns and the relative length of the crown. According to these indicators, the researcher selects natural series of development stands with the same initial density. As a theoretical basis for the models it is possible to postulate the general properties of the stand, for example, constants for the mass of needles and crown that have a clear biological meaning, with limits of values of these indicators in the process of completing canopy biomass.http://xn--80abmehbaibgnewcmzjeef0c.xn--p1ai/upload/iblock/202/202f4f9c48d7ae5669a4f0b26c612c0d.pdftree standtypes of growthstatic situationsconstants for the mass of needles and crowngrowth trendmodels of developmentgeographical forest crops |
| spellingShingle | M. V. Rogozin G. S. Razin Dynamics models and modeling of tree stand development Сибирский лесной журнал tree stand types of growth static situations constants for the mass of needles and crown growth trend models of development geographical forest crops |
| title | Dynamics models and modeling of tree stand development |
| title_full | Dynamics models and modeling of tree stand development |
| title_fullStr | Dynamics models and modeling of tree stand development |
| title_full_unstemmed | Dynamics models and modeling of tree stand development |
| title_short | Dynamics models and modeling of tree stand development |
| title_sort | dynamics models and modeling of tree stand development |
| topic | tree stand types of growth static situations constants for the mass of needles and crown growth trend models of development geographical forest crops |
| url | http://xn--80abmehbaibgnewcmzjeef0c.xn--p1ai/upload/iblock/202/202f4f9c48d7ae5669a4f0b26c612c0d.pdf |
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