If you want to develop the dairy industry, fishery and forestry and fruit industry in A, B and C, th

At first glance, it looks like a child asking exam questions! No one can answer for you without a diagram! The dairy industry is generally in the suburbs of the city, the fishery is in the seaside, lake or riverside area with water, and the forest and fruit industry is generally in the low mountainous or hilly areas!

Got a picture, right? At least tell me what the three places are, right? If it is suitable for the development of dairy industry, it must have enough water and grass, which is sufficient feed; secondly, the weather is sunny, which is suitable for livestock breeding; Finally, it is convenient to transport feed meat or dairy products, and in order to guarantee freshness, try to be slightly closer to the city.

In the case of fishery, it must be convenient and close to marine resources. The forest and fruit industry is mostly in mountainous and hilly places with a more suitable climate.

Dairy farming can be done on the outskirts of the city, and there are rivers, reservoirs, lakes, and fisheries on the coast! Fruit forestry can be developed in mountainous and hilly areas.

Adapting to local conditions, combined with climate analysis.

What is the geographical situation of A, B and C?

Solution: From Figure 1, the relationship between the average production of each fish pond y and time x can be assumed to be a one-time function relationship y=kx+b, and the relationship between the number of soft-shelled turtle ponds z and time x in Figure 2 can be obtained by using the data in the figure to obtain y=2 5x+3 5.

z=-4x+34

Therefore, the scale of aquaculture s=y*z

2/5x+3/5）*（4x+34）

This is a quadratic function with the opening pointing downward.

It can be seen that when x=, the function value is the largest, and gradually decreases after being greater than that.

When x=1, s=30

When x=6, s=20

So the scale is downsized.

Explanation: First find the analytic formula of the functions of a and b.

a: y=x/5+4/5

b: y=-4x+34

First question.

Substitute x=2 for a and b

The number of soft-shelled turtle ponds in the second year is 26, and the total number of soft-shelled turtles produced in the county is 10,000.

In the first year, the scale of soft-shelled turtle farming is 1x 5+4 530 = 300,000 soft-shelled turtles, and the scale of soft-shelled turtle farming in the sixth year is 2x10 = 200,000 soft-shelled turtles.

Therefore, the scale of soft-shelled turtle farming in this county in the sixth year is smaller than in the first year, and the third problem is that it is smaller.

The scale of soft-shelled turtle farming in this county f(x)=(x 5+4 5)(-4x+34)x is the year.

Calculate that the maximum value of x is 9 4

The largest scale of soft-shelled turtle culture is between the second and third years, and the first question is to find out that the total number of soft-shelled turtles cultured in the second year is 10,000.

It was calculated that the total number of soft-shelled turtles cultivated in the third year was 10,000.

So the second year is the largest.

Solution: From the meaning of the title, it can be seen that the image of Figure A passes through two points (1,1) and (6,2), and substitutes the two points into yA = ax+b to obtain:

a+b=16a+b=2, the solution: a=, so that the analytic formula is yA=, and the image of Figure B is substituted into yB=kx+c after two points (1,30) and (6,10).

k+c=306k+c=30, the solution: k=-4c=34, so that the analytical formula is yB=-4x+34

1) When x=2, yA=, yB=-4 2+34=26, yA, yB=

Therefore, there are 26 fish ponds in the second year, and the total number of eels produced in the county is 10,000 (2) The first year produces eels 1 30 = 30 (10,000), and the 6th year produces eels 2 10 = 20 (10,000), which shows that the eel farming planning of this county in the sixth year is smaller than that in the first year (3) The scale of the m year, that is, the total output is n, then n = y A y B = (==

Therefore, when m=2, the n maximum is .

That is, in the second year, the eel farming industry is the largest, with a maximum output of 10,000 fish

Answer: C B is located on the second step of China, while the Huangshui Valley is located on the Qinghai-Tibet Plateau, which belongs to the first step of the terrain. Due to the high altitude of the place, the land is hidden in the lack of heat.

Question 1: BQuestion 2: C

Question 1: This question examines the distribution of agriculture in Northeast China. A is located in the Inner Mongolia Plateau on the west side of the Great Xing'an Mountains, which is suitable for the development of animal husbandry, B is located in the mountains of the Xiaoxing'an Mountains, which is suitable for the development of forestry, and C is located in the Songnen Plain, which is suitable for the development of planting. So choose option B for this question.

Question 2: Located in the Songnen Plain of China, C-land is an important distribution area of commercial grain agriculture in China, with flat terrain, fertile soil and large land scale, which is suitable for mechanized farming. Therefore, the production is characterized by a large scale of production and a high commodity rate. So choose option C for this question.

1) Fruit Forestry (2 points) Located in the area of Hail and Oak Ridge, suitable for planting fruit trees (2 points) 2) Dairy (2 points) Located near the city near the collapse and the market demand is large (2 points) 3) Fishery (2 points) Near the source of the lake (2 points). Outline.

1) forest fruit; The topography of the first place is hilly, and it is suitable for the development of forestry.

2) Vice; Site B is located on the outskirts of the city and should be developed as a side business to serve the city.

3) fishing; Land C is a water area of rivers and lakes, which is suitable for the development of fisheries.

(1) Forestry and fruit industry; dairy industry; Fishery.

2）③；Oil and sea salt are abundant in raw materials, water and land transportation is convenient (railways and bays are suitable for building ports), cheap prices in the suburbs of the city, and vertical wind direction.

The downstream environmental pollution of suburban water sources is small, and there are cities to rely on the market and technical conditions are better (other reasonable can be).

3) sediment accumulation, lake shrinkage and shallowness; Mass use of chemical fertilizers and pesticides, pollution of lakes (eutrophication of water bodies) and deterioration of water quality (any one to write a little).

4) Vegetation destruction and decreased water conservation capacity; shrinking lakes and decreasing flood storage capacity; It is easy to cause floods (any one point to write).

Location of the agricultural industry.

Reason A.

The forest and fruit industry is hilly, and the development of neighboring countries can not only conserve water and soil, improve the ecological environment, but also increase income;

B sideline B is in the suburbs, arable land is tight and the market is expanding, and the needs of urban residents are diversified, which is suitable for the development of a variety of economies;

C fishery C land is a lake, the development of fishery can make the best use of natural conditions, and the impact on the environment is also small. Outline.