How many kinds of nectars in Vietnam?
Honey bees collect nectar from almost (not toxic) flowers to make honey. However, some nectar may cause irritation to people, so sometimes you can hear about “honey drunk”. In addition, bees also use the kind of honeydew on leaves, stems of plants. How many kinds of nectars and honeydews in Vietnam?
Vietnam in the northern regions have a humid subtropical climate, with humidity averaging 84% throughout the year. However, because of differences in latitude and the marked variety of topographical relief, the climate tends to vary considerably from place to place. There are four seasons: spring, summer, autumn and winter in the North, but only two seasons in the South: rainy and dry. The climate in Central Highlands have ecffected by interference of both North and South. You can feel four seasons in a day when you are in those highlands. During the winter or dry season, extending roughly from November to April, the monsoon winds usually blow from the northeast along the Eastern sea coast and across the Gulf of Tonkin, picking up considerable moisture; consequently the winter season in most parts of the country is dry only by comparison with the rainy or summer season.
During the southwesterly summer monsoon, occurring from May to October, the heated air of the Gobi Desert rises, far to the north, inducing moist air to flow inland from the sea and deposit heavy rainfall. The climate in the southern regions especially Ho Chi Minh City and surrounding Mekong Delta is predominantly Tropical savanna climate with high humidity and a distinct wet and dry season.
Annual rainfall is substantial in all regions and torrential in some, ranging from 1,200 to 3,000 millimeters (47.2 to 118.1 in). Nearly 90% of the precipitation occurs during the summer. The average annual temperature is generally higher in the plains than in the mountains and plateaus. Temperatures range from a low of 5 °C (41 °F) in December and January, the coolest months, to more than 37 °C (98.6 °F) in April, the hottest month. Seasonal divisions are more clearly marked in the northern half than in the southern half of the country, where, except in some of the highlands, seasonal temperatures vary only a few degrees, usually in the 21–28 °C (69.8–82.4 °F) range.
Because of those above reasons, each region has its own ecosysterm. Therefore, some kinds of fruits as grapefruit, jackfruit, longan …, have very different taste if they are harvested in different region. And there many kinds of plants. The abundance of nectar sources in Vietnam led to the diversity of the types of honey in Vietnam. There are no accurate statistics on the types of nectars in Vietnam, but the number can be up to thousands.