Plant and Soil Relations

This study has been undertaken with an aim of putting forward soil–plant interactions of Rumex obtusifolius subsp. subalpinus (Polygonaceae) distributed in Western Anatolian part of Turkey. The soil analysis data showed that this plant prefers sandy-clayey-loam, loamy, clayey-loam soils. The clay texture is slightly alkaline and neutral by nature. It prefers non-saline and slightly saline soils. Calcium carbonate and nitrogen contents of the soils vary, but phosphorus and potassium contents are low. The plant analysis data showed that phosphorus content was generally, but nitrogen and potassium contents were always within normal levels. While calcium carbonate content was generally below the normal levels. As a result of the regression analysis, a negative relation between plant potassium and soil pH, and a positive relation between plant calcium and soil total soluble salts were observed.

The autecological features of Reseda luteola L. (Resedaceae) distributed in western Anatolia (Turkey) showed that the species generally prefers loamy soil to various mixtures of sand, clay and loam. Soil samples are not saline and neutral to moderately alkaline. Their concentration of calcium carbonate, nitrogen, and phosphorus varies greatly, while they are deficient in potassium. Chemical analysis of plant samples showed that the phosphorus content is high, while nitrogen, calcium and potassium varies within normal levels. A regression analysis indicated a positive relation between concentration of nitrogen in plant tissues and calcium carbonate in the ground.

This study covers the investigation of the soil-plant relations of Vitex agnus-castus L. (Verbenaceae), a typical element of Mediterranean macchia vegetation. Soils collected from 38 different localities in West Anatolia were analysed together with the V. agnus-castus plants from the same localities. This plant was observed to generally prefer loamy-textured, neutral and slightly alkaline soils, poor in calcium carbonate, containing varying amounts of organic matter, being rich or very rich in nitrogen, rich in phosphorus and deficient in potassium. They grow on nonsaline soils. The relations between the results of soil and plant analysis were tested statistically, and correlation coefficient and regression curves determined.

This study was undertaken with an aim to put forth soil-plant relations of Pistacia terebinthus L. subsp. palaestina (Boiss.) Engler (Anacardiaceae) distributed in West Anatolia. The soil analysis data shows that this taxon generally grows on different kinds of soils with clayey-loam and loamy texture and neutral in reaction. CaCO3, and organic matter contents vary between 0.1-29.09 % and 0.31-5.44 % respectively. Results obtained from soil and plant analysis have been statistically verified.

Trees modify the physico-chemical and biological properties of the soil underneath. Here we present
results for seven tree species planted at a site that was contaminated by a mine spill – after which soil was cleaned
up and remediated – and later was afforested. We studied the chemical composition (24 elements) in five ecosys-
tem compartments (leaves, forest floor, roots, topsoil and deep soil). The variation in chemical concentration was
highest at the level of canopy leaves and lowest at deep soil. The identity of tree species significantly affected
the composition of all elements in the canopies but none in the deep soil underneath. Although the observed
tree effects on topsoil chemistry were weak, the footprint is expected to be reinforced with age of the plantation,
contributing to the phytostabilization of contaminating elements and to the carbon sequestration.

The aim of this study was to determine the autecological characteristics of Reseda lutea L. (Resedaceae) distributed in Western Anatolia. The chemical and physical analysis was carried out on soil and plant samples collected from 54 different localities in Western Anatolia. The results show that the plant generally prefers sandy-loam and sandy-clayey-loam textural soils, with a slightly alkaline or medium alkaline pH. They prefer non-saline, calcareous soils which are poor in potassium and phosphorus, but the nitrogen content of the soils was found to vary greatly. The soil and plant analysis results were evaluated statistically and correlations were established.

This study was undertaken with an aim to put forth soil characteristics and soil-plant relations of Quercus ithaburensis Decne subsp. macrolepis(Kotschy) Hedge et Yalt. (Fagaceae) (valonia oak) distributed in West Anatolia. The soil analysis data shows that this taxon generally grows on different kinds of soils with sandy-clayey-loam and sandy-loam; non-salinity, moderately alkaline, moderate in nitrogen, inadequate level of phosphorus, any level of calcium carbonate and potassium content. Also results obtained from soil and plant analysis have been statistically compared and investigated.

This study was undertaken with the aim of examining the soil-plant interactions of Cistus creticus L. and Cistus salviifolius L. in West Anatolia. The soil analysis data showed that these plants grow in different kinds of soils with sandy-clayey-loam, clayey-loam and loamy texture. The soils in general are not saline but are moderately and slightly alkaline, being rich in nitrogen and having a low level of phosphorus and potassium. They are unaffected by the calcium carbonate content in soils. A negative relation was observed in C. creticus after regression analysis between plant calcium and soil phosphorus, plant calcium and soil salts, but a positive relation between plant calcium and soil calcium carbonate. In C. salviifolius, there was a positive relation between plant calcium and soil pH.