| Autor: |
Yuri Fiodorovitch Arefjev |
| Rok vydání: |
2017 |
| Předmět: |
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| Zdroj: |
American Journal of BioScience. 5:89 |
| ISSN: |
2330-0159 |
| DOI: |
10.11648/j.ajbio.20170506.11 |
| Popis: |
Forests life depends in many respects from specific of mankind activity. Adverse aspect is destruction and degradation of the natural old-growth woods. The woods have been ruthlessly affected by humans. The man-made forests usually have the low level of heterogeneity and are object of mass attacks of harmful organisms. The purpose of this work is to prove formation of the forest ecosystems capable to spontaneous development, to biotic self-control. Spontaneous development is a basis of free choice of the Nature and a rather high level of heterogeneity of created plantings. It is desirable. Long-term researches were carried out in the conditions of the Central Russian Upland. Results of experimental forest works of 1936 are considered. The methodology of researches was based on the comparison of a condition of viability of forest stands and natural renewal in plantings, various on heterogeneity level. Level of heterogeneity of mosaic forest ecosystems at which spontaneous development conducting to biotic self-control of species communities and maintenance of biotic systems is reached, was as a result of researches established. Equability of man-made forests is thus to almost necessary level reached. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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