Investigations on Soil Erodibility and Some Properties of the Soils Under Different Land use  Types in Söğütlüdere Creek Watershed Near Trabzon

Makale detayları

Investigations on Soil Erodibility and Some Properties of the Soils Under Different Land use Types in Söğütlüdere Creek Watershed Near Trabzon

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Agriculture and Forestry 1999 Vol.23 Issue 1, pp.53-68

Belge Tipi:

Makale

Yayın Tarihi:

12/1998

Belge Dili:

Türkçe

Document ID (Org No.):

2000810127

Sıklık:

İki Aylık

eISSN:

1303-6173

pISSN:

1300-011X

Anahtar kelimeler:

Özet:

 

In this study, effects of different land use types on some soil properties in the Trabzon-Sögütlüdere watershed were  studied. The study area, is located in the East Black Sea Region, 30 kilometers far from Trabzon.  Soil samples evaluated in this research were taken from areas under three different land use types; forestland, rangeland and,  cultivated land at different altitudes and physio-graphical conditions in such a way that they represent general conditions of the  watershed area. Total of 83 soil profiles were determined, 48 in forestland areas, 21 in rangeland and 14 in cultivated areas for  three soil depths (0-20 cm, 20-50 cm and >50 cm).  As indicated below, on each soil sample, 20 soil properties were measured. Texture, soil fractions (2 mm), amounts  of root, dispersion ratio, colloid/moisture equivalent ratio, erosion ratio, soil moisture constants, water holding capacity,  permeability, bulk density, soil particle density, porosity, loss on ignition, organic matter and pH.  Concerning the data obtained from these properties statistical evaluations such as Analysis of Variance (ANOVA), Duncan's Multiple  Range Test and Correlation Analysis were performed. Differences and relations among the properties were examined. The results of  laboratory tests and statistical analyses obtained can be summarized as follows:  i. Statistically significant differences exist in soil properties as a function of land use type and soil depth.  ii. According to erodibility index (dispersion ratio, colloid/moisture equivalent ratio, erosion ratio) the study area soils were found  susceptible to erosion.  iii. However, dispersion ratios of forest soils were relatively less than those of range soils and cultivated land soils. Agricultural land  soils had the highest dispersion ratios. According to these results, conversion of forest areas to range or cultivated lands increases  the erodibility of soils.

 

In this study, effects of different land use types on some soil properties in the Trabzon-Sögütlüdere watershed were  studied. The study area, is located in the East Black Sea Region, 30 kilometers far from Trabzon.  Soil samples evaluated in this research were taken from areas under three different land use types; forestland, rangeland and,  cultivated land at different altitudes and physio-graphical conditions in such a way that they represent general conditions of the  watershed area. Total of 83 soil profiles were determined, 48 in forestland areas, 21 in rangeland and 14 in cultivated areas for  three soil depths (0-20 cm, 20-50 cm and >50 cm).  As indicated below, on each soil sample, 20 soil properties were measured. Texture, soil fractions (2 mm), amounts  of root, dispersion ratio, colloid/moisture equivalent ratio, erosion ratio, soil moisture constants, water holding capacity,  permeability, bulk density, soil particle density, porosity, loss on ignition, organic matter and pH.  Concerning the data obtained from these properties statistical evaluations such as Analysis of Variance (ANOVA), Duncan's Multiple  Range Test and Correlation Analysis were performed. Differences and relations among the properties were examined. The results of  laboratory tests and statistical analyses obtained can be summarized as follows:  i. Statistically significant differences exist in soil properties as a function of land use type and soil depth.  ii. According to erodibility index (dispersion ratio, colloid/moisture equivalent ratio, erosion ratio) the study area soils were found  susceptible to erosion.  iii. However, dispersion ratios of forest soils were relatively less than those of range soils and cultivated land soils. Agricultural land  soils had the highest dispersion ratios. According to these results, conversion of forest areas to range or cultivated lands increases  the erodibility of soils.

Makale detayları

Investigations on Soil Erodibility and Some Properties of the Soils Under Different Land use Types in Söğütlüdere Creek Watershed Near Trabzon

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Agriculture and Forestry 1999 Vol.23 Issue 1, pp.53-68

Belge Tipi:

Makale

Yayın Tarihi:

12/1998

Belge Dili:

Türkçe

Document ID (Org No.):

2000810127

Sıklık:

İki Aylık

eISSN:

1303-6173

pISSN:

1300-011X

Turk. J. Agric. For.

23

(1999)

53-68. Full text: pdf Other articles published in the same issue: Turk. J. Agric. For.

vol.23

iss.1.

Sayı

Makale detayları

Investigations on Soil Erodibility and Some Properties of the Soils Under Different Land use Types in Söğütlüdere Creek Watershed Near Trabzon

Yayıncı: TUBITAK

Dergi: Turkish Journal of Agriculture and Forestry 1999 Vol.23 Issue 1, pp.53-68

Belge Tipi: Makale

Yayın Tarihi: 12/1998

Belge Dili: Türkçe

Document ID (Org No.): 2000810127

Sıklık: İki Aylık

eISSN: 1303-6173

pISSN: 1300-011X

Turk. J. Agric. For.

23

(1999)

53-68. Full text: pdf Other articles published in the same issue: Turk. J. Agric. For.

vol.23

iss.1.

Sayı

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Agriculture and Forestry 1999 Vol.23 Issue 1, pp.53-68

Belge Tipi:

Makale

Yayın Tarihi:

12/1998

Belge Dili:

Türkçe

Document ID (Org No.):

2000810127

Sıklık:

İki Aylık

eISSN:

1303-6173

pISSN:

1300-011X