Investigation on Structure of pistachio trees stands in two closed and grazed areas (Baghe Shadi protected area Yazd

Subject Areas : forest

yunes  garavand ¹ (دانشجوی دکتری جنگلداری، دانشکده منابع طبیعی، دانشگاه تربیت مدرس، نور، ایران)
Hosseini  S.M ² (استاد، دانشکده منابع طبیعی، دانشگاه تربیت مدرس، نور، ایران.)
کورش  ahmadi ³ (دانشجوی دکتری جنگلداری، دانشکده منابع طبیعی، دانشگاه تربیت مدرس، نور، ایران)
علی  Ghomi avili ⁴ (دانشجوی دکتری جنگلداری، دانشکده منابع طبیعی، دانشگاه تربیت مدرس، نور، ایران)
علیرضا  Ahadi ⁵ (کارشناس تجهیزات، اداره کل نوسازی توسعه و تجهیز مدارس استان مازندران، ساری، ایران)

Received: 2015-11-17 Accepted : 2016-07-12 Published : 2016-08-22

Keywords: Pistacia atlantica, Yazd province, Forest structure, Baghe Shadi,

Abstract :

Study of forest structure is important, especially in today's discussions of the importance of close to Nature silviculture purposes. This study was conducted to evaluate for stands of Pistachio (Pistacia atlantica) structure in the Baghe Shadi protected area in Yazd province. In this study, the sampling method with a fixed area plot has been used. A total of 76 circular plots was harvested in the protected and grazed and trees in each plot characteristic such as species, number, height, regeneration, crown diameter, diameter at breast height and basal area measurements were recorded. Data analysis using software Spss and Excel, and then drawn the Stand structure using SVS software. The results showed that in both regions, species pistachio, protected and grazed as the main and dominant species. Pistachio trees in the protected lush area to be grazed. in the way that in both regions protected the mean diameter at breast of pistachio trees 42.02 cm, the average size of 8.8 acre and the average height of the silo 54.6 m, respectively. Average volume of 8.8 silo ha, And the mean height 6.54 m, were estimated. Uneven-aged stand structure closed the area and even-aged grazed areas, which are well supported by the stands of the closed area. The regeneration of the grazing region is well done, but of the grazing region regeneration rarely occurs. 

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