Influence of woody vegetation on physico-chemical properties of sod-podzolic soils at Lesnaya Opytnaya Dacha of RSAU-MTAA named after K.A. Timiryazev

Abstract

A research of the dependence of Lesnaya Opytnaya Dacha (LOD) soil properties on the varieties of the woody vegetation grown on these soils has been conducted. Measurements of the humus content, hydrolytic soil acidity, saline soil acidity and the sum of exchange base cations were used as main soil properties. Different types of vegetation were studied, including pure deciduous and pure coniferous stands and their mixtures in different proportions. Some controversial data was acquired, according to which, it appears that deciduous stands and coniferous stands do not have a statistically significant impact on the studied soil properties.

Diurnal Monitoring of Moisture Content of Scots Pine and Small-Leaved Lime Trunks Using Ground Penetrating Radar (GPR) and Increment Cores

“…In 1862, A.R. Vargas de Bedemar was invited to set up the FED and compiled the first growth tables for oak, lime and birch stands [21].…”

“…Subsequently, a smallleaved lime undergrowth was recorded at this site. According to the FED forest inventory completed in 2009, the dominant species was Scots pine (Pinus sylvestris), and small-leaved lime stands grow on an area of 5.03 ha with a predominance of mature trees (4.55 ha) [21].…”

“…There were no visible trunk defects, dry branches or dry or discolored leaves; all trees' bark was uniform. The trees on the examined plot were about 160 years old according to historical data [21] and had a circumference range of 128-134 cm. The circumferences of trees were small-leaved lime 1-127 cm, small-leaved lime 2-150 cm, Scots pine 1-136 cm, Scots pine 2-157 cm.…”

Adventive Component of the Flora of the Forest Experimental Station of Russian State Agrarian University – Moscow Timiryazev Agricultural Academy

“…В настоящее время в лесном фонде преобладающими являются насаждения сосны, лиственницы, березы и дуба, большая часть из которых относится к спелым и перестойным [3]. Почвенный покров представлен дерново-подзолистыми почвами, различающимися по степени проявления дернового, подзолистого и глеевого процессов [7].…”