Abstract

The features of the dynamics of the morphology and chemical properties of forest litter during postagrogenic reforestation of plowed land in the southern taiga subzone are studied. The relationship of the dynamics of the structure of forest litter with floristic composition and ecological–coenotic structure of the ground cover is shown. The increase in reserves, as well as in the diversity of the structure and in the spatial variation of the main morphological parameters of forest litter in the course of tree stand regeneration has been revealed. Acidification and a decrease in the ash content and in the portion of easily decomposed fractions in forest litter are adequately reflected in the composition of the ground cover, in which the role of species adapted for increased acidity and low content of nutrients increases. After spruce enters the first tree layer, the spatial distribution of the structure, reserves, thickness, and fractional composition of forest litter is determined by the position in the tessera. In general, the succession and the dynamics of the morphology and chemical properties of forest litter testify to a decrease in the turnover rate in the biogeocenosis. The ecological scales by Ellenberg, Landolt, Tsyganov, and Ramenskii applied for the ground cover may be important tools in analyzing the dynamics of litter in forest ecosystems.

中文翻译：

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天然农后造林过程中森林凋落物形态和化学性质的动态及其对地被植物的影响

摘要

研究了南方针叶林次耕地耕地后森林再造林过程中森林凋落物形态和化学特性的动态特征。结果表明，森林凋落物结构的动态与植物区系组成和地被生态生态结构的关系。揭示了林分更新过程中森林凋落物的储量增加，结构多样性以及主要形态参数的空间变化。酸化和灰分含量的降低以及森林凋落物中易分解部分的减少充分反映在地被植物的组成中，在这种植物中，增加酸度和减少养分含量的物种的作用增加了。云杉进入第一棵树层后，森林凋落物的结构，储量，厚度和分数组成的空间分布取决于在tessera中的位置。通常，森林凋落物的形态和化学特性的演替和动态证明了生物地理衰变的周转率下降。Ellenberg，Landolt，Tsyganov和Ramenskii所采用的生态规模作为地面覆盖物，可能是分析森林生态系统中枯枝落叶动态的重要工具。森林凋落物的形态和化学特性的演替和动态证明了生物地理衰变的周转率下降。Ellenberg，Landolt，Tsyganov和Ramenskii所采用的生态规模作为地面覆盖物，可能是分析森林生态系统中枯枝落叶动态的重要工具。森林凋落物的形态和化学特性的演替和动态证明了生物地理衰变的周转率下降。Ellenberg，Landolt，Tsyganov和Ramenskii所采用的生态规模作为地面覆盖物，可能是分析森林生态系统中枯枝落叶动态的重要工具。