Investigation of Spatial Distribution Pattern Using Distance and Quadratic Methods in Zagros recreational area
Subject Areas :koroush nazarpoorfard 1 , Hassan pourbabaei 2
1 -
2 - دانشگاه گیلان
Keywords: Bolouran Forest Park Distribution Pattern Distance Methods Recreation T- Square,
Abstract :
Studying the spatial pattern in plant communities is necessary for their better recognition and is the prerequisite for understanding the many issues in forest ecology and management. The purpose of this study Investigating the effect of recreation on Spatial patterns of trees in oak Zagros forests. Sampling methods were fixed-area plots and T-square methods. In each region, there are 40 sample plots ( 1000m2 ) and 40 sampling points to measure distances In the distance method in each region were taken. To quantify and analyze the distribution patterns in the sample method was used with the Green, Morissita and Standardized Morisita indices. The Hopkins, Eberhardt, Heinz, C, Johnson and Zimmer indices were used in the distance methods. Indicators C, Hopkins and Heinz showed a clumped pattern But the Johnson Zaimer and Eberhart indices showed a regular pattern in the control area. The results showed that from the indices Sample plot the Morissita and Morissita standardized indices showed a clumped pattern in the recreational and the control area, and the Green index showed a regular pattern in the recreational area and the control area. The values obtained from the distance indices showed that the degradation in the recreational area caused a change in the spatial pattern and the spatial pattern in the recreational area was changing so that most indices in this area showed a regular pattern.
