The key to desert control is to prevent wind and fix sand, protect existing vegetation, cultivate desert plants in a planned way in desert areas and build sand-fixing forests. Generally, low shrubs or herbs are planted on windward slopes of sand dunes to fix loose sand grains, and tall trees are planted on low-lying areas on leeward slopes to prevent sand dunes from moving.
desert control is still a worldwide problem. Different places have different desert causes and different desert management methods.
first, for desert, Gobi and extremely arid areas, it is not suitable for treatment at present, and the focus is on prevention and protection to minimize man-made damage.
second, for sandy areas, desert oases, etc. On the premise of rational development and utilization of water resources, we should adjust measures to local conditions, give priority to grass, give priority to grass irrigation, and mix grass irrigation with trees to carry out ecological restoration projects, supplemented by agriculture and animal husbandry construction.
desert control is to curb the spread of desert through technical means such as water control. The main causes of desertification expansion are unreasonable human activities, drought and water shortage, sparse vegetation and wind power generation. Therefore, if we can find a breakthrough in alleviating the shortage of water resources, increasing the surface vegetation in desert areas and reducing the role of wind power generation. Desert control can be solved easily.
Extended information:
Water sand control includes the following ways:
Make full use of seasonal water resources in northern desert areas. Northern Xinjiang, Inner Mongolia and other areas are rich in winter rain and snow resources. By building desert reservoirs and underground culverts, winter snow and water can be stored in sand reservoirs, so as to raise the groundwater level and extract and use it when necessary.
looking for groundwater resources. Due to the different terrain, altitude and other factors, some places are rich in groundwater, so it is necessary to make full and rational use of the limited local resources to meet the emergency water demand of people, animals and plants.
south-to-north water transfer project. The water from the Yangtze River is used to irrigate the land in the lower reaches of the Yellow River, and the water from the Yellow River is used to solve the drought in Inner Mongolia. At present, although China's South-to-North Water Transfer Project has achieved initial results, it still needs to increase investment to solve the uneven situation of drought and flood as soon as possible.
In the upper reaches of the Yellow River, gradually build livestock reservoirs, raise the water level, expand the storage capacity, and build pumping stations to make the vast desert as moist as possible. T think so. It is a dream to turn the desert into a granary.
Bohai sea entry project. The whole project covers eight deserts in western China. In my opinion, if the project is successfully implemented, it will not only greatly promote the greening of the desert, but also make the introduced seawater evaporate in summer, and the water vapor formed will be superimposed with the invading summer monsoon, increasing the total amount and probability of precipitation in the northwest desert and surrounding areas, thus playing a lasting role in improving the ecological environment in these areas.
The main ways of desert sand utilization are:
Using desert quartz sand to prepare sintered bricks. Hao, Wu Berlin, Yang Yuntao, etc. The preparation of sintered brick with fly ash and desert quartz sand as main raw materials was studied. The results show that the compressive strength of the sintered brick prepared by this method reaches 19.56MPa, which meets the requirements of the national standard of MU15 grade sintered brick and has good economic and social benefits.
using desert fine sand to produce foamed concrete. Song Xuhui, Hou, Yang Shuxin, etc. The research on the production of foam concrete by using desert fine sand shows that:
If foam concrete is directly produced by using desert fine sand, ordinary cement, foaming agent and other materials, all the indexes of the products can meet the national requirements, and then it can be made into building bricks by compounding with some materials, which can meet the national three-step energy-saving requirements, and can turn waste into treasure in areas rich in desert resources.
the sand control method has two advantages in desert control: on the one hand, it can reduce the amount of sand used in the desert, and make concrete with gravel bricks, resulting in economic benefits; On the other hand, by using bricks and concrete, sand barriers are built.
Simply looking at her skirt makes us lose our tune, and then looking at her shoes, we even forget the lyrics. Our minds go blank at the thought of her eccentric personality.
before we knew what had happened, we quickly got into the water storage irrigation and entered the water supply pipeline for the city.
2. Desert Tour Project
Xinwei Lake Eco-tourism Area is one of the key tourist areas for the development of desert eco-tourism line in Pingluo County.
after five years' efforts, Tao Le Tianyuan Fuzang Agricultural Development Company basically completed the infrastructure such as roads, water pipe network and power supply of Vivi Lake ten thousand mu ecological park. Hu Miao Eco-tourism Zone was built in 27. On the basis of initial sandstorm control and ecological greening, we will vigorously develop eco-tourism projects. Nowadays, tourists can not only enjoy the peach blossoms all over the mountain, but also the newly-built perfume bay Holiday Center, Seven Pagodas, Lingquan Temple and other cultural tourism facilities provide rich experiences for tourists, enjoying spring among yellow sand, green water and peach blossoms.
3. Development of new desert tourism projects
The famous tourism projects in Inner Mongolia are
1. Mu Ren grassland tourist attractions: Located 9 kilometers north of Hohhot, you can see Puhui Temple in Siritu, Hohhot, which is the summer palace of the Sixth Living Buddha. At the same time, you can enjoy the beautiful grassland scenery, as well as the traditional Mongolian lifestyle and ancient customs.
2. Gegentala Grassland Tourist Spot: 15 kilometers north of Hohhot, in Chagan Brigsumu, Siziwangqi, visitors can enjoy Mongolian yurts in primitive yurts and various forms of Mongolian performances here.
3. Phaeton Xile Grassland Scenic Spot: The scenic spot is located in the southwest of Chayouzhongqi, Wulanchabu City, 15 kilometers northeast of Hohhot City. It is more than 1,8 meters above sea level and about 1 kilometers from east to west. There are 99 natural lakes. This is a summer resort in midsummer.
4. Xiangshawan tourist spot: located in the middle and west of Kubuqi Desert, located in Zhao Shulin Town, Dalad Banner, Ordos City. Visitors will be surprised by the sound of sand when enjoying the strange desert landscape.
5. Laoniuwan Yellow River Grand Canyon Tourist Area is located in the south of Zhungeer Banner in the southeast of Hohhot.
6. Genghis Khan Cemetery, located in Ejinhoro Banner, Ordos City.
from p>21 to 212, Gansu, which has three deserts, namely Kumtag, Badain Jaran and Tengger, is one of the provinces with large desertification area, wide distribution and the most serious damage. For decades, people living here have been looking for a way to live with the desert. From artificial sand control to mechanized and scientific sand control, the desertified land and desertified land in Gansu Province generally showed a decreasing trend, and the degree of desertification expansion was further curbed. According to the fifth monitoring results of desertification and desertified land, compared with the fourth monitoring results in 29, the total area of desertified land in Gansu Province decreased by 191,4 hectares. People's life has also retreated from people entering the sand to the harmony between people and sand. You can not turn Minqin into Wuwei City, Loulan County, Gansu Province for several generations. The northern part is located between Tengger Desert and Badain Jaran Desert, which is in the forefront of desertification in China in terms of geographical environment gradient. In the Qingtu Lake in winter, the reeds are all yellow. Despite the cold weather, waterfowl still fly here, full of vitality. Qingtu Lake, once the tail lake of Shiyang River, dried up completely in 1959. After that, strong winds and quicksand raged, forming a 13-kilometer-long sandstorm line, which surrounded Tengger and Badain Jaran deserts. Without water, people have to walk about 8 kilometers to get the water back. Eat first, then wash the dishes, and then feed the animals. We insist that those who stay must control sand. If you can, if you can't cure it, the desert will devour everyone. People who stick to Minqin began to suppress sand, fixed sand dunes with wheat straw squares to slow down the speed of sand dunes, and then planted Haloxylon ammodendron to fix sand and keep water. During the Twelfth Five-Year Plan period, six units in Gansu Province won the national advanced collective of sand prevention and control, five individuals won the national advanced individual of sand prevention and control, Shi Shuzhu of Minqin County of Wuwei City won the national hero of sand control, and Zhang Chengcheng of Liangzhou District won the national top ten model of sand prevention and control. The power of example will further fully mobilize the enthusiasm of the whole people to participate in sand prevention and control. Fixing sand and controlling sand, there will be less sand slowly; When the country began to implement the key management plan of Shiyang River Basin, Qingtu Lake gradually became better and better. Wang Xingkui, secretary of the Party branch of Shunxin Village, Xiqu Town, Minqin County, said. Since 21, the Qingtu Lake, which has been dry for more than 5 years, has formed a water surface and expanded year by year. At present, the water surface of Qingtu Lake has reached 25.16 square kilometers, and the buried depth of groundwater has increased from 4.2 meters in 27 to 3.4 meters at present, and the local buried depth of groundwater is less than 1 meter. On the west side of Yangguan Town in Dunhuang City, at the intersection of Kumtag Desert and Tengger Desert, there is a desert quilt named Dujiangyan. In August 216, the flood from Aksai Kazak Autonomous County was flooded by Dujiangyan in the desert and then reached Kumtag Desert. Yangguan town is safe and sound. He, his creator, originally wanted to realize the dream of cold-water fish industry. After coming here, He Cai found that because it is close to Qilian Mountain in the south, it is threatened by floods in Subei and Aksai on the northern slope of Qilian Mountain every year. The flood washed down with a lot of sediment, destroying roads, farmland and villages. We must keep the sunshine, and don't let Dunhuang become the second Loulan. Inspired by the ancients and guided by experts, He Zhongyan began to build Dujiangyan in the desert. He led the team to build a sand-fixing desert with clay sand-fixing project, forming the first barrier to protect Dunhuang Yangguan; Building a sand barrier at the tuyere of Kumtag Desert can effectively stop sand dunes from advancing towards the sun, forming a second barrier; Biological sand fixation is to plant drought-tolerant plants and form the third green barrier. In August, 213, more than 3 scientists, represented by Cheng and Feng Qi, academicians of China Academy of Sciences, visited Dujiangyan in the desert. They think that this project is huge in scale, ingenious in design and difficult to build, and its ideological damage is controlled by injury and turni
Several young people have opened their dim sleep eyes, and today they are going to the desert again. Their mount is unique. It can be used not only as a contemporary means of transportation, but also as an experimental object. Today, S's job is to continue to test whether the sand-fixing vehicle runs smoothly. At the same time, some people should be separated to plant Haloxylon ammodendron with low water consumption in the experimental grass sand barrier. Testing, measuring, recording and planting. At night, the test data should be brought back to analyze and improve the grass structure of the sand-fixing vehicle. It was not until it was dark that they returned this unique sand control vehicle to the farmhouse. This was the day when Gansu built the experimental base of engineering and biological sand control of new energy company at the edge of Tengger Desert in Jiuduntan, Liangzhou District, Wuwei City at this time three years ago. Three years later, more than 2, mu of grass checkered sand barriers have been formed on the southern edge of Tengger Desert in Gansu Province, which has become a solid defense line to prevent desertification from expanding. The multifunctional three-dimensional sand-fixing vehicle, which built this defense line, has also undergone a lot of tests and can implement mechanized sand control on a large scale. As the world, this is the first mechanized sand control vehicle in the United States. The multifunctional stereo sand control vehicle has 11 utility model technologies and invention patents. As a product independently developed by Gansu Jiantou, the sand control operation began in July 214. Laying artificial grass squares for sand control and sand fixation is highly praised by the sand control circles at home and abroad because of its good wind-proof and sand-fixation effect. However, due to the low efficiency of governance, high labor costs and the acceleration of desertification, this method is difficult to resist the accelerated expansion of desertification. Mechanical sand control can play an obvious role in wind and sand prevention by laying plant stalks such as straw and wheat straw on the desert surface into different forms of grass sand barriers, increasing the roughness of the desert surface, reducing wind power, preventing quicksand from moving and intercepting rainwater. The mechanical sand-fixing equipment has high quality and good effect, which greatly improves the planting survival rate of psammophytes. According to the calculation, 6 people manually lay grass sand barriers, and 6 cubic meters can be laid every day; The three sand-fixing vehicles can lay 4, square meters every day, with an average of 1.2 million square meters per month. Recently, Gansu Jiantou New Energy Technology Co., Ltd. S project and biological equipment sand control experimental base was listed as the national sand control (mechanical sand control project) experimental demonstration base. In the future, Gansu Jiantou will also actively explore the desert control system here, improve the level of scientific and technological sand control, explore advanced technology and experience of desertification control and develop emerging industries from the perspectives of improving the ecological environment, developing ecological industries and upgrading the culture of sand areas. As one of the earliest research and development areas of sand industry in China, Gansu has initially formed characteristic industries in sand areas, such as planting grass and raising livestock, desert agriculture and desert eco-tourism. The total investment exceeds 12.6 billion yuan and the total output is 15.3 billion yuan. After decades of sand control, by the end of 214, the area of desertified land in 1 provinces and regions in China had decreased by 1,227 square kilometers compared with that in 29, and the area of desertified land had decreased by 6,337 square kilometers. Scientific sand control has achieved remarkable results. China's technology has gone global. In Gansu, many experts and scholars have been with the desert all their lives. Qu Jianjun is a sand madman. Who will climb the sand mountain when there is a strong wind? Sand control is like seeing a doctor. It is necessary to take the pulse and understand the characteristics of sandstorms before controlling them. Now, we can put forward integrated solutions of technology, products and management for different sand disasters. There is not only one way to control desertification, but different desertification control systems should be built according to local conditions. For example, the law of sandstorm movement in Gobi Desert of Mogao Grottoes in Dunhuang, sand control measures, the dynamic change and flow field recovery technology of crescent spring sand hill in Mingsha Mountain, and some coastal sand damage control and < P > At present, we have built a comprehensive experimental station for Minqin sand control in sand hill, with an experimental area of 2,3 mu, which has become the bridgehead for sand control in the front of Badain Jaran and Tengger deserts. Liu Shizeng, director of Gansu Institute of Sand Control, said. With the support of directional research and sand control achievements for 45 years, Gansu Institute of Sand Control has built the only national field research station of Minqin desert grassland ecosystem in Gansu Province, which was built by provincial scientific research institutes, and created the first set of near-surface dust observation system in China, providing detailed basic data and scientific basis for ecological environment control in northwest China. In recent years, Gansu Institute of Sand Control has carried out scientific and technological exchanges with 76 countries and international organizations, and carried out cooperative research with more than 13 domestic scientific research institutes and universities. More than 6 foreign experts and officials came to study in the institute, and 3 experts went abroad for exchanges; 38 international scientific and technological cooperation projects and 43 international training courses have been carried out, which has promoted China to show American sand control technology to the world. Many foreign friends score courses seriously. Yusuf Jama, an assistant professor at Swabi University, participated in China this year. He participated in the American Young Scientists Talent Program and came to Gansu to attend the international training course on desertification control. The level of desertification control in China and the United States is good internationally, but there are not many measures in this regard. This is a very meaningful experience. The degree of desertification in Sahara and Pakistan is quite serious. Through this year's study and research, I need to record the experimental data and the experimental situation. With the continuous improvement of desertification control level in China and the acceleration of scientific research and industrialized desertification control, China, which has mastered advanced desertification control technology, spares no effort in international desertification control and plays an increasingly important role in the field of international desertification control.
English learning has accumulated over time, and nothing grows. While all parts of the country are accelerating development, the leaders in this area have made a very difficult mistake. There is no resource advantage or location advantage here, so how should it develop? The local leaders are determined to go out and learn from other countries. First of all, they went to the Jiangnan water town, visited the garden scenery and enjoyed the nylon opera. When he revealed the idea of developing tourism, the leaders of the water town shook their heads again and again, wondering how a piece of yellow sand could develop tourism. On the train home, the leader frowned and said nothing.
Three years later, newspapers and TV reported that a certain area in northwest China was vigorously developing desert tourism, and tourism revenue became a pillar industry in this area. Everyone is concerned about how desert tourism started. Here's how to do it