Is the land more drought tolerant the more productive it is, or is it drought tolerant if it is not

It is true that the land is more and more drought-tolerant the more you shovel.

Plant drought is ostensibly caused by a lack of water in the soil, but in essence it is caused by poor root development and excessive water loss on the surface of the soil. On the one hand, ploughing can reduce the loss of water in the soil, and on the other hand, it can promote the development of the root system. Soil ploughing can cut and block the soil capillaries, thereby inhibiting the upward movement of water in the soil, and can bridge the gaps in the soil surface, which reduces the water loss caused by air drying and evaporation on the surface.

On the other hand, shoveling loosens the soil and promotes root development. Due to the characteristics of hydrotropic and fertilizable root development, the decrease of surface water and the increase of deep soil moisture content will make the root system take root deeper and stretch farther.

The specific role is:

1. Weeding: The growth of weeds is to compete with crops for water, nutrients and sunlight, especially in drought. After rain, the well-developed root system of the weeds makes it difficult for water to evaporate.

Hoeing weeds can play a certain role in water and fertilizer retention and promote the growth of crops. It's like watering the crops.

2. In times of drought, the water in the soil evaporates from the ground to the surface through a structure called a capillary. In severe cases, the soil will dry out, especially in clay soils, and the water will evaporate faster and deeper through the deep trenches formed by the cracks. At this time, hoeing can cut off the capillary tube on the surface of the ground to prevent the water in the deep layer of the soil from evaporating along the capillary and play a role in water retention.

After the rain, the soil on the surface is loosened by hoeing, the surface area exposed to air increases, and the evaporation of water accelerates. Therefore, it is equivalent to drying the ground for crops with fire. Obviously, this can only be a situation where it rains without too much water.

The more the land is shoveled, the more drought-tolerant it is, because the production area can make the soil retain moisture and prevent water evaporation, so it will be relatively drought-tolerant.

If the land is not drought tolerant or waterlogging, then it is recommended to plant drought-tolerant and waterlog-tolerant crops, and it is recommended to plant sorghum in the foundation shed. or planting economical trees.

Hello, the soil that is not tolerant to dryness and waterlogging can be planted with some macro-slippery crops with good adaptability and strong growth ability, such as Cornus cordata, Houttuynia cordata, etc. are good choices.

Land that is not tolerant to drought and waterlogging is suitable for growing pasture grass for the development of cattle and sheep, which not only prevents soil erosion, but also facilitates the production of animal husbandry, killing two birds with one stone.

What is good to plant on land that is not drought tolerant and waterlogging? Such a land is best to grow sweet potatoes, and it is best to grow sweet potatoes.

I think it should be good to grow peanuts in land that is not drought and flood tolerant, I once planted peanuts in a sandy land, and they grew very well.

Cropper; Wheat is ruined.

Medicine; licorice crops; Wheat.

Medicine; Licorice.

Fruit tree: Red Fuji Gaochai apple.

Fruit Tree Fiber Source: Red Fuji Apple.

You can grow drought-tolerant sweet potatoes, soybeans, potatoes, peanuts, edamame, sesame limbs, cotton, cantaloupe, ginger, dry tobacco, sunflower or oil sunflower, walnut tree, Huaishan, kudzu, cucumber, Lilu winter jujube tree.

Soil erosion, climate warming. By: 789yytmmh - Apprentice Magician Level 2 4-13 18:

11 Massive soil erosion, global warming, frequent sand and dust storms: water will become very expensive!! Who:

Land drought brings disasters such as sandstorms, soil erosion, and reduced living space for human beings. Climate change, deserts, orbital cycles, inner core movement, heat release.

Desertification is a global environmental problem. Since the beginning of history, 12 million hectares of land in China have been turned into sand.

Desert, especially the "modern desertified land" formed in the past 50 years, has 5 million hectares. According to the United Nations Environment Programme (UNEP).

In the southern part of the Sahara Desert, the desert expands outward by about 1.5 million hectares per year. Every year, 6 million hectares of land in the world are developed.

Biological desertification. The annual cost of agricultural production amounts to $26 billion [1, 2, 3]. From 1968 to 1984, Saharas, Africa.

The southern edge of the desert has experienced a severe drought that has shocked the world for 17 years, causing huge economic losses and disasters to these countries, and killing people.

The number reached more than 2 million [3]. Desertification has caused the living space of the biological world to shrink, which has attracted great attention from the scientific community and all countries.

Five years ago, we proposed that the main causes of desertification were the cooling of the climate and the weakening of tectonic activity, and that human activities accelerated the process of desertification.

4]。Recent scientific expeditions by Chinese scientists to Lop Nur provide irrefutable evidence.