نتایج جستجو برای: principal felling
تعداد نتایج: 124727 فیلتر نتایج به سال:
Abstract The aim of the study was to identify influence different widths and cardinal directions felled corridors on condition mensuration characteristics English oak trees planted there during conversion low-value young stands using corridor method. carried out in forests forest-steppe zone at a permanent sample plot. experiment included 8-year-old stand improve its species composition. plots ...
The main problem is to develop a carbon sequestration model determine the capacity of forests and their products then, based on this, forest management plan that most effective in CO2. After that, decision for understanding utilization developed. Finally, we select Chinese forestry as representative present results study selective felling temperate coniferous mixed broad-leaved promote reasonab...
این تحقیق با استفاده آنالیز چند متغیره بر روی عکس های ذخیره شده بوسیله یک دوربین دیجیتال راه حلی را برای مسئله همپوشانی پیک ها که یکی از مسائل مهم در کروماتوگرافی لایه نازک است ارائه میدهد. ما برای اولین بار اندازه گیری همزمان چند گونه بر روی کاغذ کروماتوگرافی لایه نازک را با استفاده از آنالیز چند متغیره عکس مورد مطالعه قرار دادیم. سیستم عکسبرداری متشکل از یک کابینت، یک دوربین دیجیتال و یک بر...
Questions: Are calorimeters and pyrometers accurate and reliable for describing fire parameters in large-scale ecological projects, and can data from them predict data derived from thermocouples? Do mechanical pre-treatments in Florida scrub areas alter fire properties? Location: Lake Wales Ridge, Florida, USA. Methods: We deployed thermocouples attached to digital dataloggers, copper and lacqu...
The study can provide decision-making support to loggers and participants in forest relations who are obliged carry out reforestation activities assess the factors that change effectiveness of forestry logging operations. balance production environmental effects from use transport machines development is an important step effective quality management landscape restoration. degree compaction soi...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید