The question asks to identify the climate zone of the northeastern part of 'бастра' (likely a geographical region, but 'бастра' is not a standard geographical term and might be a typo or local name) and the factors that form its climate. To answer this, I would need to know the specific geographical location of 'бастра'. Climate zones are determined by latitude, proximity to oceans, prevailing winds, and topography. Without knowing the location of 'бастра', it's impossible to determine its climate zone or the factors influencing it. If 'бастра' is a typo for 'Сибирь' (Siberia) or a specific region within Siberia, then the climate would generally be continental or sharply continental, characterized by large temperature fluctuations between summer and winter, low precipitation, and influenced by the vast landmass and polar air masses.