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Cutting practices in mature stands of Tilia cordata Mill.

机译：Tilia Cordata Mill成熟立场的切割实践。

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The right timing for replacing mature and over-mature forest stands with a young generation of trees is evident as it ensures continuity in forest management. The study aimed to assess the efficiency of cutting practices in mature stands of Tilia cordata Mill. Mono-dominant and poly-dominant, even- and different-aged linden tree forests in the southern Urals were studied. The study found that in the first years following the small scale forest cutting practices (the Murakhtanov method), retention trees of Tilia cordata Mill. showed longer crowns (by 0.3 ?± 0.01 m) and higher crown diameter indices (by 0.11 ?± 0.04 m). A single selection showed that nectar secretion potential was 2.1 ?± 0.06 mg/flower in the first assessment year, the index was 1.8 ?± 0.03 mg/flower in the control forest area where no trees were cut. In the third assessment year, nectar secretion potential rose to 4.1 ?± 0.04 mg/flower, while the index fell to 2.0 ?± 0.01 mg/flower in the control forest area. The comparative analysis of the shoot growth capacity in stools of different diameters showed that shoots regrew from 82% of stumps. Shoots did not regrow from stumps affected by rot, those ones destroyed in the cutting process, and also from stumps of 59 a?? 62 cm in diameter.
机译：替代成熟和过度成熟的森林的正确时机具有年轻一代树是显而易见的，因为它确保了森林管理中的连续性。该研究旨在评估Tilia Cordata Mill成熟立场中的切割实践效率。研究了南部乌拉尔的单声道和多占领，甚至和不同老年的林登树林。该研究发现，在小规模森林切割实践（Murakhtanov方法）之后的第一年，蒂利亚Cordata Mill的保留树。显示冠状较长的（0.3？±0.01米）和更高的冠直径指数（±0.04米）。单一选择表明，第一次评估年度的花蜜分泌电位为2.1？±0.06毫克/花，该指数在控制森林区域中的指数为1.8？±0.03毫克/花，没有树木。在第三个评估年度，花蜜分泌潜力升至4.1？0.04毫克/花，而指数落到了控制森林区域的2.0？0.01毫克/花。不同直径粪便中芽增长能力的比较分析表明，芽从82％的树桩中重新创建。射击没有从腐烂影响的树桩中生成，那些在切割过程中被摧毁的那些，以及59 a的树桩？直径62厘米。

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