بررسی طرز تربیت دانه زاد ناهمسال راش (برش شبه تک گزینی) برای دستیابی به زادآوری ایده آل در راشستانهای استان گلستان

نوع محتوی: طرح پژوهشی
Language: Persian
استان موضوع گزارش: گلستان
شهر موضوع گزارش: گرگان
Document ID: R-1061041
Publish: 16 February 2019
دسته بندی علمی: علوم کشاورزی
View: 182
Pages: 37
Publish Year: 1389

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لینک ثابت به این Research:

Abstract:

Achievement to ideal regeneration in natural stand and also continues and optimum production of forest with correct uneven age grain that realize intensity and cutting cycle in an arrangement of time and place at the first stage duration of plan performance were not carried out because of predicted Fagus orientalis un seed year low term of time primary cutting in this report acquired result from qualitative and quantitative stand is presented in order to performance of this plan plat hectare was selected in fagues natural stands of Vatan management plan in height m results of this investigation in dicated that base species mixture stand type of fagues orientalis carpinus betulus unaccommodating conclusion are as follows stand type structure regular irregular number in hectare is basal area / (m ) square meter in hectare average coefficient height and coefficient density Rinke density coefficient / and respectively dominate stand height / and volume in hectare and trunk height average / m and crown height average / and crown diameter average / m total number of seedling in hectare and / percentage of trees trunk with out defect and / percentage contain defect / percentage crown trees proportion and concurrent and / percentage un current . Key words: Silviculture, fagus, qualitative and quantitative stand.

Keywords:

فاگوس , باززایش , توده های جنگلی ناهمسال , جنگل شناسی , گلستان