FORESTIST

THE AMOUNTS AND NUTRİENT CONTENTS OF FOREST FLOORS OF SOME CONIFEROUS STANDS AT THE ATATÜRK ARBORETUM NEAR İSTANBUL

1.

I.Ü. Orman Fakültesi, Toprak İlmi ve Ekoloji Anabilim Dalı Öğretim Üyesi.

FORESTIST 1993; 43: 93-116
Read: 342 Downloads: 225 Published: 17 February 2020

The objective of this study was to determine the amount and the nutrient contents of forest floor of some coniferous stands and to compare them \vith each other. The samples \vere collected from 11 different stands (3 of each). The amounts and nutrient contents vvere determined for the individua! layers and for the vvhole floor in each stand. The results werc compared statistically. The results are as follovvs:

1) The minimum and the maximum values were for the total amounts of the forest floors, 12032 kg/ha and 44898 kg/ha for Abies cilicica and Pinus jeffreyi, respectively.

2) The minimum and the maximum values vvere for C/N ratios 23.86 and 48.14 for Abies cilicica and Pinus nigra var. pallasiana forest floors respectively.

3) The minimum and the maximum values vvere for loss on ignition 9140 kg/ha and 37064 kg/ha for Abies cilicica and Pinus jeffreyi forest floors respectively. The minimum and the maximum values vvere for aslı and Si02 1835 kg/ha - 1208 kg/ha, 9129 kg/ha - 8108 kg/ha for Pinus nigra var pallasiana and Pinus radiata forest floors respectively.

4) The minimum and the maximum values vvere for N contents 93.97 kg/ha and 420.47 kg/ha for Pinus nigra var. corcicana. and Pinus jeffreyi forest floors respectively. 

5) The minimum and the masimum values were P contents 4.18 kg/ha and 16.77 kg/ha for Pinus nigra var. pallasiana and Pinus radiata forest floors respectively.

6) The minimum and the maximum values were for K contents 15.94 kg/ha, and 58.26 kg/ha for Abies cilicica and Pinus radiata forest floors respectively.

7) The minimum and the maximum values were for Ca contents 126.28 kg/ha and 497.19 kg/ha for Pinus patula and Pseudotsuga menziesii forest floors respectively.

8) The minimum and the maximum values were for Mg contents 22.65 kg/ha, and 122.58 kg/ha for Pinus nigra var. pallasiana and Pseudotsuga menziesii forest floors respectively. 

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