Библиографическое описание:Factors Limiting Radial Growth of Conifers on Their Semiarid Borders across Kazakhstan : научное издание / Nariman B. Mapitov [et al.]. - Текст : непосредственный // Biology. - 2023. - Т.12, №4. - P. 604. - ISSN 2079-7737, DOI 10.3390/biology12040604.
Аннотация:<jats:p>The forests of Central Asia are biodiversity hotspots at risk from rapid climate change, but they are understudied in terms of the climate–growth relationships of trees. This classical dendroclimatic case study was performed for six conifer forest stands near their semiarid boundaries across Kazakhstan: (1–3) Pinus sylvestris L., temperate forest steppes; (4–5) Picea schrenkiana Fisch. & C.A. Mey, foothills, the Western Tien Shan, southeast; (6) Juniperus seravschanica Kom., montane zone, the Western Tien Shan, southern subtropics. Due to large distances, correlations between local tree-ring width (TRW) chronologies are significant only within species (pine, 0.19–0.50; spruce, 0.55). The most stable climatic response is negative correlations of TRW with maximum temperatures of the previous (from −0.37 to −0.50) and current (from −0.17 to −0.44) growing season. The strength of the positive response to annual precipitation (0.10–0.48) and Standardized Precipitation Evapotranspiration Index (0.15–0.49) depends on local aridity. The timeframe of climatic responses shifts to earlier months north-to-south. For years with maximum and minimum TRW, differences in seasonal maximal temperatures (by ~1–3 °C) and precipitation (by ~12–83%) were also found. Heat stress being the primary factor limiting conifer growth across Kazakhstan, we suggest experiments there on heat protection measures in plantations and for urban trees, alongside broadening the coverage of the dendroclimatic net with accents on the impact of habitat conditions and climate-induced long-term growth dynamics.</jats:p>
Держатель оригинала документа:Department of Biology and Ecology, Toraighyrov University, Pavlodar 140008, Kazakhstan, Department of Dendroecology, V.N. Sukachev Institute of Forest, Siberian Branch of the Russian Academy of Science, 660036 Krasnoyarsk, Russia, Department of Microbiology and Biotechnology, S. Seifullin Kazakh Agrotechnical University, Astana 010011, Kazakhstan, Institute of Ecology and Geography, Siberian Federal University, 660036 Krasnoyarsk, Russia, Khakass Technical Institute, Siberian Federal University, 655017 Abakan, Russia
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