Productivity and life length of oak (Quercus robur L.) artificial crop in the Northern Ergeny, Kalmykia

International Jubilee Scientific and Practical Conference "Innovative directions of development of the forestry complex"

生态环境科学

Kostin, M.V.^1^2 ; Manaenkov, A.S.^3

Laboratory of Arid Afforestation, Institute of Forest Science, Russian Academy of Sciences, 21Sovietskaya street, Uspenskoe, Moscow region

143030, Russia^1

Center of Phytopathology of Introduced Species, All-Russian Research Institute of Phytopathology (VNIIF), 5 Institutskaya street, Bolshie Vyazemy, Moskow region

143050, Russia^2

Laboratory of Forest Reclamation and Forestry Problems, Federal Scientific Centre of Agroecology, Complex Melioration and Protective Afforestation, Russian Academy of Sciences, 97 Universitetskiy avenue, Volgograd

400062, Russia^3

关键词: Forest density;    Growing conditions;    Natural tree;    Pedunculate oak;    Quercus robur;    River terraces;    Seed generations;    Shade tolerant tree species;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/226/1/012057/pdf
DOI  :  10.1088/1755-1315/226/1/012057

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The paper deals with the current state, productivity and durability of oak tree (Quercusrobur L.) stand in the Northern Ergeny (Kalmykia, Russia). The best forest-growing conditions are formed on light alluvial-deluvial soils of river terraces during the first years of plant life as well as in large depressions of placers with dark-colored soils and the horizon below onemeter. Large deep gulches of Ergeny partially overgrown with natural tree and shrub vegetation play the most important role for massive (continuous) afforestation in the territory of Kalmykia. When cultivating forest stands under these conditions, the most productive and durable breed is the pedunculate oak. Seed generation of oak can develop according to I-III class of forest appraisal index (the forest density stored up to this age is 160-190 m3 ha-1) and survive to 80-100 years and in the case of timely cutting - to form a stable coppice stand. Effective methods of cultivation of viable plantings on placers are: formation of a long-term reserve of soil moisture, creation of pure plantations of medium density from relatively shade-tolerant tree species and large shrubs frequent removal of dead wood and unpromising trees, formation of a shadowy underbrush or undergrowth in rapidly dilapidated stands.