نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه جنگلداری و اقتصاد جنگل،دانشکده منابع طبیعی،پردیس کشاورزی و منابع طبیعی،دانشگاه تهران،کرج،ایران
2 استاد، گروه جنگلداری و اقتصاد جنگل، دانشکده منابع طبیعی، دانشگاه تهران، کرج، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Plant root architecture, is crucial for stability, as well as for the absorption of water and nutrients, and for the stabilization of soil. In this study root architecture in the context of its application in soil bioengineering was investigated. To achieve this, 69 seedlings of beech species (28 seedlings from a hill with a 10% slope and 41 seedlings from a 60% slope) were extracted from the soil using the Shovelomics method. Four primary characteristics of the root system were analyzed and ranked, and additionally, mechanical strength tests were conducted on root samples. The findings indicated that the ratio of maximum rooting depth to stem length on slopes of 10% and 60% was 32.23% and 28.94%, respectively. Furthermore, the ratio of root system diameter (i.e. root mat) to seedling crown diameter was 43.80% and 63.38% for the 10% and 60% slopes, respectively. ANCOVA results revealed that while stem length was a significant covariate factor, slope did not significantly influence root depth or root diameter. A positive correlation was also noted between height and maximum rooting depth. The most frequent root architecture patterns observed on both slopes were classified as VH, followed by V, which are deemed suitable for slope stabilization. The mechanical resistance of the seedlings fell within the range documented for mature oriental beech trees. ANCOVA results further indicated that slope did not significantly affect the mechanical resistance of roots. Understanding the type of root system architecture can greatly assist in the selection of bioengineering systems.
کلیدواژهها [English]
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