Of all the soil types, black soil is known for its rich humus, which is ideal for agriculture. There are only four black soils in the world, which are located in the Ukrainian plain in Europe, the Mississippi plain in North America, the pampas grassland in South America (shared by Argentina and Uruguay), and the northeast plain in the northeast of China.
However, what is worrying is that the black soil in the Northeast is undergoing irreversible changes, do you know?Black soil is fertile soil that has been formed over thousands of years, and its organic matter content is 10 times that of loess. This is a treasure gifted by the earth to mankind, and it is extremely suitable for agricultural production. At present, Beidacang in Northeast China has become an important grain producing area in China.
In the past 2020, the grain production of the three northeastern provinces accounted for one-fifth of the country's total output!Half a century ago, experts were surprised to find that the black soil in the northeast is actually 1 meter deep, and it takes at least four to five hundred years to form 1 centimeter of black soil. The total area of the black soil in Northeast China reaches 103 square kilometers, of which about one-third is arable land. For a long time, the Northeast has contributed a huge amount of grain production to our country, but it has inevitably led to the loss of a large area of black soil.
Experts estimate that the organic matter content of the black soil in Northeast China has dropped from a maximum of 6% before reclamation to the current 3%, with a loss of 03 to 1 cm of black soil. This means that our black soil is irreversibly turning yellow, and at the current rate, by the end of the 21st century, the black soil in the northeast may completely turn into loess, and the black soil resources will be completely depleted.
There are many reasons for the yellowing of black soil, including predatory exploitation of soil, destructive deforestation of vegetation and destruction of wetland ecological environment, resulting in serious degradation of soil and water conservation functions of black soil. In order to increase yields, the excessive use of chemical fertilizers overdraws the fertility of the black soil, causing the black soil to gradually thin or even disappear. The impact of black soil degradation will be severe.
The degradation of black soil means a decline in production, and the problem of food and clothing for nearly 1.4 billion people in our country must be addressed. Since this lack of production can only be compensated for by imports, the protection of black soil is imperative. Conservation actions have been launched, but the results will take time to verify. Some people may say that there is so much black soil in the Northeast that only one-third of the arable land is used, and we just need to continue to cultivate it.
However, while expanding the area of black soil reclamation is the most direct way, it is also not sustainable. What should we make of this?
Ecological Alert: Loess Crisis in the Black Soil of Northeast China.
With the development of society, the huge demand for agricultural production has put the black soil under unprecedented pressure. This once treasured land is now being depleted by overdevelopment, and the fertility of the soil is rapidly declining. In order to better understand this problem, it is necessary to go deep into the main causes of the yellowing of black soil and possible solutions.
The loss of black soil: the cost of logging and exploitation.
The rich organic matter of the black soil is the fundamental reason for its name, and it is also an important basis for agricultural production. However, with the predatory exploitation of soils and the destructive deforestation of vegetation, black soils are under tremendous pressure to survive. The destruction of the wetland ecological environment is one of the main reasons for the serious degradation of soil and water conservation in black soil.
Experts estimate that the organic matter content of the black soil in Northeast China has dropped from a maximum of 6% before reclamation to the current 3%, with a loss of 03 to 1 cm of black soil. This means that our black soil is irreversibly turning yellow, and at the current rate, by the end of the 21st century, the black soil in the northeast may completely turn into loess, and the black soil resources will be completely depleted.
Overuse of chemical fertilizers: the weak point of black soil.
In order to increase agricultural production, farmers are using chemical fertilizers. However, the overuse of chemical fertilizers not only overdraws the fertility of the black soil, but also leads to the gradual thinning or even disappearance of the soil. This has not only led to a significant reduction in the productivity of the black soil, but has also had a negative impact on the ecosystem.
The most direct impact of black soil degradation is a drop in yields. This is undoubtedly a huge challenge in the face of the problem of food and clothing for nearly 1.4 billion people in our country. In order to fill the food gap caused by the degradation of black soils, we can only solve it by increasing imports. This not only poses a threat to our country's food security, but also makes us more dependent on foreign countries and faces greater risks.
Protecting Black Soil: An Imminent Task.
In order to solve the problem of black soil degradation, the protection of black soil has become a top priority. A series of conservation actions have been launched, but the results will take time to verify. As we act, we need to recognize that expanding the area of black soil reclamation is the most direct option, but it is also unsustainable.
Sustainable Agriculture: Achieving sustainable use of black soil.
In order to achieve sustainable use of black soil, we need to promote the development of sustainable agriculture. This includes the use of science and technology to improve agricultural productivity, the rational use of organic fertilizers to replace over-reliance on chemical fertilizers, and the establishment of scientific farming systems to slow down the degradation of black soils.
In addition, it is also urgent to strengthen the protection of the ecological environment of wetlands, restore damaged vegetation, and establish a sound soil and water conservation system. Through comprehensive measures, we may be able to curb the degradation of black soil to a certain extent and achieve sustainable use of black soil.
Epilogue: Awakening to the responsibility of the black earth.
The black soil in Northeast China used to be the cradle of China's agriculture, and now it is facing a serious loess crisis. Protecting black soil and achieving its sustainable use is not only our responsibility to nature, but also to future generations. Only by working together can we protect this former oasis and bring the black land to life again.
The loess crisis in the black soil of Northeast China, this article profoundly depicts the plight faced by China's agricultural treasure land, and calls on us to pay attention to and take active measures to protect this important resource. The first thing that catches the eye of the article is its title, by using"Eco Alert"and other words, as well"The threat of loess and the call of ecology"This thought-provoking sentence succeeds in capturing the reader's attention and makes one want to delve deeper into this serious problem.
By detailing the formation of the Black Land, its past glory, and the problems it faces now, the author gives the reader a deep understanding of the importance of this land and the threats it faces. In particular, it is pointed out that the organic matter content of black soil has dropped from a maximum of 6% in the past to 3% now, and it is lost by 0At 3 to 1 centimeter, it is a visual indication that the black soil is irreversibly turning yellow.
This paper further analyzes the causes of the yellowing of black soil, such as predatory soil exploitation, destructive deforestation of vegetation, destruction of wetland ecological environment, and excessive use of chemical fertilizers. The in-depth analysis of these issues makes the reader more clearly understand that the degradation of black soil is not caused by a single cause, but is the result of a combination of factors.
In terms of addressing the problem, the article mentions the conservation actions that have already been undertaken, but also points out that expanding the reclaimed area is not a sustainable solution. This perspective provides a space for reflection and leads to more attention to the development of sustainable agriculture and the application of science and technology to improve agricultural productivity. By putting forward the concept of sustainable agriculture and calling on the society to pay attention to scientific and technological innovation and ecological environment, the author pointed out the direction for solving the problem of black soil.
Overall, this article vividly presents the pressing problems faced by the black soil in Northeast China, and through in-depth analysis and positive appeals, readers not only understand the existence of the problem, but also inspire a sense of responsibility for solving it. In the future, we need more people to pay attention to and participate in the protection of the black soil to ensure that this treasure land can continue to provide abundant food resources for our country.
Disclaimer: The above content information is ** on the Internet, and the author of this article does not intend to target or insinuate any real country, political system, organization, race, or individual. The above content does not mean that the author of this article agrees with the laws, rules, opinions, behaviors in the article and is responsible for the authenticity of the relevant information. The author of this article is not responsible for any issues arising from the above or related issues, and does not assume any direct or indirect legal liability.
If the content of the article involves the content of the work, copyright**, infringement, rumors or other issues, please contact us to delete it. Finally, if you have any different thoughts about this event, please leave a message in the comment area to discuss!