High School Geography Problems Crop ripening

The Northeast Plain is cropped once a year, the Huang-Huai-Hai Plain is harvested twice or three times a year, the middle and lower reaches of the Yangtze River Plain are harvested twice or three times a year, and the Pearl River Delta is harvested three times a year. In general, the further south you go, the more crops ripen in a year. The Qinghai-Tibet Plateau is a year of ripening.

The Northeast Plain is cropped once a year, the Huang-Huai-Hai Plain is cropped twice a year, and the local areas are cropped three times a year, and the middle and lower reaches of the Yangtze River Plain are cropped three times a year.

Uh, everybody's said, do you want to ask abroad?

M: The important thing is in the North China Plain, and the key point in the reply is to talk about 1 for water is not high 2 the light is abundant 3 the soil is fertile 4 can be planted in a large area, and the mechanization is convenient for use.

Rice: 1 Moisture: Crops scattered in paddy fields south of the Qinhuai line should be rich in precipitation, suitable for rice growth 2 Light and heat: Rain and heat in the south at the same time, light and abundant 3 soil (to speak well) 4 Labor is abundant.

Cotton: 1 water Please ask about the low precipitation during the labor period, and there is abundant irrigation water 2. Long light hours and abundant light and heat (such as mentioning Xinjiang).

Soybeans will not be tested - just remember the soil (soybeans are in the Northeast Plain, just test the soil) Some people will ask the scale of soybeans in the Northeast, that is, the heat is not rich.

Sugarcane: scattered in Taiwan, Fujian, Guangdong, Yunnan, Qiong, these provinces on the edge of the Tropic of Capricorn, it is naturally rich in light and heat, and the scale is not high in sugar content (due to more precipitation during the labor period).

Rapeseed is also good in terms of light and heat, fertile soil, and abundant precipitation.

PS The focus is on wheat, rice, cotton. Take a picture and remember where the dispersion is, and the dispersion boundaries must be well remembered.

Is it Zhejiang's? Zhejiang's is like this.

The geographical distribution of agriculture is from labor, transportation, market, refrigeration and preservation conditions, light and hot water, soil, terrain (plain), mechanized use.

The first and second years of high school probably won't be used all, but how to take the test in the third year of high school, those big points must be violated, and the exam will think in this way, as usual, at most one or two points will be deducted, and this point can be taken all.

The factors that affect the location of agriculture are divided into natural conditions and socio-economic factors, including, climate, water source, topography, soil;

Climate: heat, light, precipitation.

Soil: type, fertility.

Socio-economic factors include, market demand, transportation, national policies, agricultural production technology, industrial base, labor force, and land price level.

Market demand: supply and demand, demand, distance from the market, transportation: type, whether developed.

Policy: Restriction or Promotion.

Technology: historical planting experience, improved seed cultivation, agricultural mechanization degree, fertilizer and pesticide land price: distance from the city, economic level.

Barriers: Green barriers, ** barriers.

soil, climate, water source, etc.

Because China's monsoon climate is significant, the four seasons are distinct, so the North China Plain and the Jianghuai Plain are two crops a year, but the North China Plain because of less precipitation, so there is no rice, sowing in the form of wheat sorghum or wheat soybeans, the wheat in the North China Plain is mainly winter wheat, sown in winter, mature in June, and then begin to sow sorghum in July, mature from south to north from October to December, and then continue to sow wheat.

However, since long-term sowing can lead to nitrogen deficiency in the land, legumes should be planted after wheat planting every few years, because the rhizobia in the roots of legumes can fix nitrogen.

This is a matter of the physiological cycle of the plant itself, and when it blooms and bears fruit is determined by the arrangement of its own gene bases.

According to the density of wheat spikes, the structure of spikelets, the traits, color, and plush of wheat spikes, and the traits, colors, and plush of grains, the seeds are divided into many subspecies, varieties, variants and varieties. According to the different requirements for temperature, it is divided into two physiological types: winter wheat and spring wheat, and different types are planted in different regions. Spring wheat was planted in Heilongjiang, Inner Mongolia and Northwest China, sown in March and April in spring, matured in July and August, and had a short growth period of about 100 days. Winter wheat is planted in eastern Liaoning, North China, southern Xinjiang, Shaanxi, provinces in the Yangtze River basin and South China, sown in October and November in autumn, matures in May and June of the following year, and the growth period is about 180 days.

Conceptual analysis of "mode of production" and "farming mode".

In Basic Training. There is a multiple-choice question in the first part of the ability improvement part of Compulsory 2 (Yuelu Edition, September 2007 2nd Edition) as follows:

The main agricultural practices in ancient China were: b

a.Large-scale simple collaborative approach to cultivating land bIron farming tools and oxen are used for ploughing

Adopt a curved plough and a columbOn page 4 of the 3rd edition (January 2007), it is stated that "the main farming method of primitive agriculture is slash-and-burn farming", on page 5 it is also said that "after the Han Dynasty, iron plough and ox farming became the main farming method of traditional agriculture in China", and on page 6, it is stated that "the farming method of ancient Chinese agriculture has undergone a change from collective labor to individual farming". There is an inconsistency in the use of "farming methods".

On page 2 of the Yuelu edition (2nd edition in June 2007), it is stated that "the cultivation form of primitive agriculture is slash-and-burn", on page 3, it is said that "agricultural farming methods with the help of iron farming tools and ox power have emerged", and on page 5, "from thousands of couplings to individual farming", it is stated that "the farming methods of ancient agriculture in China are constantly developing and improving." Comparing the two versions of the textbook, it is not difficult to see that they both agree that the "farming method" is regarded as the "mode of production" or "mode of management" or "mode of organization", that is, from the collective cooperation of "thousands of couples" to individual farming as a unit. Therefore, the answer to this question should be D.

However, in the "Interpretation of History Curriculum Standards (Experimental)" (December 2003, 1st edition), it is mentioned that "in agricultural production, the main farming methods are the use of iron farming tools and ox ploughing", that is, the farming methods mainly refer to the use of production tools and the progress of production technology. I also consulted the reference book and learned that the tillage method refers to the treatment of the surface layer of the soil by various methods to make it suitable for the growth and development of crops, including ploughing, harrowing, hoeing, etc.

In other words, the land is intensively cultivated using production tools and techniques to make it suitable for crops. The mode of production refers to the way of obtaining the material materials necessary for social life, and the system of mutual relations between man and the natural world and between people formed in the process of production. The material content of the mode of production is the productive forces, its social form is the relations of production, and the mode of production is the unity of the two in the process of material means of production.

Accordingly, options A and D in this question belong to the category of production methods, at first, due to the primitive agricultural tools and the low ability of human beings to conquer nature, they can only invest a large amount of labor to carry out simple cooperative production; With the advancement of production tools and farming techniques, as well as the advent of private land, smallholder farming has also emerged. In option C, the curved plough and the columbine belong to the category of production tools, and their appearance improves the cultivation technology; In option B, iron farming implements and ox farming are a combination of production tools and farming techniques, which cause changes in the organization of production and make it possible for smallholder households to produce this mode of production.

Production generally refers to industry, such as the clothes you wear and the food you eat. Farming refers to agriculture in general, you know.

Heat, light, moisture, soil, topography, fertilizer.

Cotton There are four major cotton areas in China You must know that central and southern Hebei, northwest Shandong, northern Henan, middle and lower reaches of the Yangtze River, lower reaches of the Yellow River and southern Xinjiang long-staple cotton Winter wheat is mainly in the North China Plain Spring wheat is mainly in Songnen, Sanjiang, and Liaohe Plain Sugarcane is in the tropics, including the whole territory of Hainan Island, southern Guangxi, and southern Taiwan In addition, the Sichuan Basin is more special There are also planted Corn is relatively large in Jilin The middle temperate zone and the warm temperate zone are more abundant The three seasons of rice in rice are in South China It is okay to remember according to the temperature zone Grain should be known to the nine major commercial grain bases Songnen Plain, Chengdu Plain, Jianghan Plain, Taihu Lake Plain, Sanjiang Plain, Pearl River Delta, Dongting Lake Plain, Poyang Lake Plain, Jianghuai Plain.