1. Geographic location
On a map of Vietnam, Hoa Binh province is located in the northwest gate, an area of 4662.53 km2 natural. In terms of geographic location, Hoa Binh is the intermediate buffer zone between a northern delta area and one side is the high mountains, dense forests of the northwest, through traffic is via Highway 6 (the road) and River The majority (waterways) in the north. Peace bordering the capital Hanoi and have important positions in the defense strategy of the region and nation.
2. Topography
Highlights of Hoa Binh is a mountainous terrain, high split complex, steep slopes and northwest - southeast, divided into two areas:
High mountains northwest: Mai Chau district includes, Da Bac, Tan Lac district stretching down, Lac Son. High mountains over 1,000 meters on average do not, is the highest mountain Pu Soup (1373 m high). Average elevation of the mountains that draws down the southeast such as remote mountain in northern Son (Tan Lac) 1136 m high, remote mountains of Phu Luong (Lac Son District), 934 m high, distant mountains Liberal (Lac Son), 820 m high, ... Mountains in the region have formed by intrusive rocks, mainly granite and gaboro.
Low mountains and their eastern Nam: Ky Son district includes, Luong Son, Kim Boi, Lac Thuy, Yen Thuy. The area has terrain problems alternating between the terrain and topography catto erosion, because it is such a cave, lost land and water. Average high mountains 200-500 m, divided into many blocks were disjointed.
On soil: Do Topography and climate should Hoa Binh land divided into two obvious parts: alpine average, including red wine soil feralit ebony content 6-7%, due to high humidity, the temperature a low, this area is very favorable for forestry development. Hills and low mountains, including land feralit red wine scholar and regions, including the soil accounted for 45-80%. Most areas along rivers and streams every year due to another by a thick coating sa should be very favorable for growing rice, in the blood.
System of rivers and streams: Due to the terrain to be divided so powerful rivers in the United Normal steep and short. Summer rainfall, high water level of rivers and streams, causing floods flowed swiftly, affecting agriculture and transportation in the area. Winter water shortages, water quality in rivers and springs to slip, there are many small streams dried up. Currently, the Hoa Binh has four major river systems:
Da River: originated in the high mountains of Yunnan - China, flows through the Northwest, this paragraph long narrow river, five waterfalls, Hoa Binh province to territory beyond the river dragon, master noise reduction, most notably Thac butter. Most rivers flow on the land for peace with the length of 103 km to Hoa Binh, Da River flow northward.
Da river reservoir (Hoa Binh): a capacity 9.5 billion m3 of water, serving many economic goals and national defense. Among them, mainly the task of serving the generators of the Hoa Binh Hydropower Plant - power supply is important for the country, besides the task of flood relief for the rainy season, water regulation during the dry season drought the Red River Delta.
Apply Song: Thuong Tien originated in Kim Boi district. About 60 km long river, flowing through many limestone mountains south of Hoa Binh and then poured into the Hoang Long River in Ninh Binh province.
Song sessions: originated in Tan Lac, Lac Son by the springs Lot, springs Cai, humanity springs, streams, Phu Yen and many other small streams in the town to save Social Service Board (Lac Son district) and then flowed into Ninh province Infantry. Approximately 38 km long river. Long narrow rivers, rainy season often causes floods on both sides.
Song Ma: stretch flowing through the boundaries of provinces Hoa Binh to Hang Kia is remote from the district Mai Van Mai Chau. Most springs Mai Chau district south of the river are due to Ma.
3. Climate:
Hoa Binh is located in the tropical monsoon climate with the characteristics: hot, warm, cold winters. The average temperature in 230C; precipitation averages 1,800 mm per year relative humidity 85% Average annual evaporation 704 mm. The climate is divided in two distinct seasons:
Summer, beginning June 4 and ends June 9. Average temperatures above 250C, has now reached 430C. The average rainfall in June over 100 mm, the highest point is 680 mm (1985). Rainfall is usually concentrated in months 7, 8. Rainfall occupies the entire buying 85-90% annual rainfall.
Winter: starts from the month 10 years ago, ended three years later in March. The average temperature in June ranges between 16 - 200C. Right to low temperature and is 30c. Rainfall in months 10 - 20mm.
Due to topographic characteristics, there are Hoa Binh Northwest climates with cold winters and dry, hot summers (high in the mountains northwest); climates northern plain beautiful weather than ( lower in mountainous areas).
