Geography Please answer in detail, thank you 7 16 5 12

Yes, after cultivating the land, you can return to the field through straw, increase the application of farm fertilizer, plant leguminous plants and bury the remaining part in the field, implement intercropping, crop rotation, return farmland to forest and grassland to reduce soil erosion and other measures, all of which can make a certain amount of nutrients in the soil, so that the soil can be recycled, so the soil is a kind of renewable resources.

Some people said that the soil can not be used after desertification, in fact, it can be managed, such as planting drought-tolerant plants in desert areas, and ensuring the water required by plants in real time, then after a few years, these desertified lands will be fixed and transformed, gradually approaching the level of various elements in the soil, so that the desertified land is restored.

Land is renewable from a production point of view, but not from a resource point of view.

A more scientific way of saying it is that land is a renewable resource.

Regeneration is like a plant, which can continuously grow new resources year after year.

Non-renewable is the use of less and less like mineral resources.

Land is somewhere in between, and if it is used properly, it will not decrease, but it will not increase.

Land is non-renewable because it's so big that land resources are renewable.

Land resources are renewable resources, after cultivating the land, can be returned to the field through straw, increase the application of farm fertilizer, plant leguminous plants and bury the remaining part in the field, the implementation of intercropping, crop rotation, return farmland to forest and grassland to reduce soil erosion and other measures, can make a certain amount of nutrients exist in the soil, so that the soil can be recycled.

Of course, desert areas can also be used, but they are very technically demanding.

Land is a renewable resource Land resources can be used repeatedly (of course, we must pay attention to the use of conservation).

Land is a renewable resource.

Land is a non-subsistence resource.

A unique example: . .If the land is desertified, can it still change back on its own? ~0~

For non-renewable resources, we should pay attention to the protection and cultivation.

<> "That's all I found, it's a shot of Han, it's not you who hit the potatoes and laughed at yourself, right, right

Topographic factors, such as the plateau and mountainous areas in Northwest China, have large undulating terrain and inconvenient transportation, which is not suitable for large-scale settlement development.

Climatic factors, such as: the northwest region has a dry climate, a large temperature difference between winter and summer, little precipitation, and a relatively harsh natural environment.

Rivers, water source factors, such as: Northwest China has fewer rivers, scarce precipitation, and a general lack of water resources.

Others, such as the historical shift of China's economic center from the Yellow River basin to the Yangtze River basin, led to a large influx of people from the northwest to the southeast.

Answer: Topographic factors, such as: mainly plateau and mountainous areas, inconvenient transportation, insufficient arable land.

Climatic factors, such as temperate continental climate, and alpine plateau climate.

Rivers, water source factors, such as: fewer rivers, insufficient water sources.

Topographic factors: Mountains and plateaus are the main areas to the west and north of the first line of AB; The east is dominated by plains, such as the northwest: less precipitation and a cold climate; East: More precipitation, suitable climate.

Rivers, water source factors, such as: less West River, less water sources; There are many rivers in the east and abundant in water resources, and others, such as: the population of the west is historically small; Dondo.

In short, look at the description of the ladder in the book, it is all above!

Topography: There are many plateaus, mountains, hills, and mountainous areas, which bring certain difficulties to transportation and agricultural development.

Climate: It belongs to the arid region of Northwest China, with semi-arid and arid climate and low precipitation, which affects agricultural production and people's lives.

Rivers and water sources: many inland rivers and inland lakes have high salinity and are not convenient for direct drinking.

Others: vegetation is seriously damaged, many geological disasters, and people's education level is generally low.

Topographic factors, such as: the west and north are plateau mountains, far from the ocean, climate factors, such as the west and north of the plateau climate, and the air is dry, not suitable for human habitation of the river, water source factors, such as: the west and north of the inland area water source is limited, the river is almost an internal river, strong seasonality, others, such as: the west and north of the resources are relatively rich but the natural conditions are poor, development is difficult.

AB line is the Heihe-Tengchong line, also known as the Hu Huanyong line, topographic factors: the west of the line is mostly plateau desert area, the terrain is complex, the mountains are high and the valleys are deep, the traffic is inconvenient, and the coastal connection is inconvenient.

Climatic factors: The western part of the line is far away from the ocean, and the western Pacific monsoon is difficult to reach, so rainfall is scarce and the climate is arid, which is not conducive to agricultural development and production, and human daily life.

River water source factors: there are many high mountains and plateaus here, most of them are the source of rivers, and the water flow is turbulent, which is not conducive to navigation, so it is not conducive to people's communication.

Other: Historical factors: Due to the above factors, the history of this area was relatively late, the social progress was slow, and many dynasties did not govern the area, so the population was sparse.

(1)a Hot and dry summers, mild and rainy winters a (2) Europe: plains, warm, broken, tortuous, temperate oceanic climateOceania: north and south, tropical desert climate.

3) Great Dividing Range Few Animal Husbandry Vast Pastures (4) Wheat The northern Paris Basin has a flat topography with Atlantic water vapor and abundant precipitation.

a d

2. Region: Plain, warm current, curved, temperate oceanic climate, north and south, tropical desert climate.

3. There are few mountainous areas, animal husbandry is vast and sparsely populated, 4. Wheat has flat terrain and sufficient water sources.