Land use in China is experiencing massive changes and impacts to the environment due to an unprecedented period of economic growth, which has catapulted it from one of the world's poorest countries 30 years ago to the world's second largest economy today. [1] Based on trends in economic development, population growth, and land use, China's natural landscape will experience significant and increasing pressures well into the future.
China has four times the population of the U.S., within roughly the same area. With 1.4 billion inhabitants, 20% of the world's population lives in China. [2] While the rate of population growth has been declining for decades, the total number of inhabitants has been growing and is expected to do so through 2030. [3] China's urban population is growing rapidly; between 1950 and 2009, the percentage of the population living in urban areas quadrupled from 14% to 48%. [4] Meanwhile, the rural population is declining, opening the landscape in areas that are not urbanized. The forests and farming land of eastern China support far more people and major cities than do the grasslands, deserts, and high mountain regions of the west.
The vast majority of China's cultivated land lies in eastern China. Nearly all of the arable land, totaling 122 million hectares or 13% of the country, is cultivated. [5] To ensure adequate food production, the government has identified a minimum threshold or “redline” of 120 million hectares of cultivated land. [6] Chinese law also requires a one-to-one replacement (in quantity and quality of farmland that is converted to other uses). These policies, combined with development and other land use pressures, are shifting the location of farmland. Some cultivated lands are being newly created from other uses such as forestry, grasslands, and wetlands while existing cultivated lands are being converted to other uses such as built-up areas, forests, and grasslands.
Livestock grazing occurs throughout China and is possibly the most common use of grasslands. China is the world's largest producer of sheep and goats, and the fourth largest producer of cattle. [7] Livestock grazing is a major driver of grassland degradation in China. The government has instituted a variety of programs to combat desertification, which has slowed to 3,000 km2 per year. [8]
Since the late 1950s, China's forests have experienced several periods of significant deforestation, which contributed to related environmental disasters such as the Yangtze River flood in 1998. In response, the Central Government has attempted to restore forest cover by investing upwards of 1 trillion RMB into six forest conservation programs, the most significant of which include Grain to Green (1999–2016) and the Natural Forest Protection Program (NFPP) (1998–2020). These programs combine afforestation efforts (primarily in northern China) and timber harvesting bans or limits to restore forest cover. Forest cover was 20% as of 2008; the Central Government aims to achieve 23% forest cover by 2020, and 26% by 2050. [9] [10]
China has one of the largest mining sectors in the world and is the world's largest energy producer. [11] Energy production is on the rise, which will impact biodiversity as China constructs more mines, oil and gas wells, dams and hydropower stations, wind farms, pipelines, and other infrastructure. In particular, western and central China will experience increasing energy development because they hold many untapped and lesser tapped oil and gas fields, coal reserves, and areas with the highest potential for wind and solar energy production
China is expanding its road and rail networks, investing 5 trillion RMB to construct 40,000 km of railroads by 2020. [12] [13] The vast majority of planned and existing transit is located in eastern China. Secondary road construction is more of an emphasis in western China. The rail network is expanding nationwide to connect most cities with populations of at least 200,000. [14]
Desertification is a type of land degradation in drylands in which biological productivity is lost due to natural processes or induced by human activities whereby fertile areas become arid. It is the spread of arid areas caused by a variety of factors, such as overexploitation of soil as a result of human activity and the effects of climate change. Geographic areas most affected include the Sahel region in Africa, the Gobi Desert and Mongolia in Asia as well as parts of South America. Drylands occupy approximately 40–41% of Earth's land area and are home to more than 2 billion people.
The economy of Ethiopia is a mixed and transition economy with a large public sector. The government of Ethiopia is in the process of privatizing many of the state-owned businesses and moving toward a market economy. The banking, telecommunication and transportation sectors of the economy are dominated by government-owned companies.
Nepal measures about 880 kilometers (547 mi) along its Himalayan axis by 150 to 250 kilometers across. It has an area of 147,516 km2 (56,956 sq mi).
The economy of Tanzania is a lower-middle income economy that is overwhelmingly dependent on agriculture. Tanzania's economy has been transitioning from a planned economy to a market economy since 1985. Although total GDP has increased since these reforms began, GDP per capita dropped sharply at first, and only exceeded the pre-transition figure in around 2007.
In the United States, national forest is a classification of protected and managed federal lands that are largely forest and woodland areas. They are owned collectively by the American people through the federal government and managed by the United States Forest Service, a division of the United States Department of Agriculture. The U.S. Forest Service is also a forestry research organization which provides financial assistance to state and local forestry industry. There are 154 national forests in the United States.
Baotou is the largest city by urban population in Inner Mongolia, China. Governed as a prefecture-level city, as of the 2020 census, its built-up area made up of its 5 urban districts is home to 2,261,089 people with a total population of 2,709,378 accounting for counties under its jurisdiction. The city's namesake, literally translated to "place with deer", is of Mongolic origin or "Lucheng", meaning "City of Deer". Alternatively Baotou is known as the "City of Steel in Gobi". Steel was a major industry in the city. Today, Baotou refines over half of the rare-earth minerals produced in the world. This has led to environmental contamination near the industrial sites.
Deyang is a prefecture-level city of Sichuan province, China. Deyang is a largely industrial city, with companies such as China National Erzhong Group and Dongfang Electric having major operations there. The city is rich in history, with the Sanxingdui archeological site in Guanghan uncovering a rich trove of bronze and gold masks. More recently, Deyang was greatly afflicted by the 2008 Sichuan earthquake, which particularly impacted its county-level cities of Mianzhu and Shifang, in Deyang's northwest. Deyang spans an area of 5,911 km2 (2,282 sq mi).
Afforestation is the establishment of a forest or stand of trees (forestation) in an area where there was no recent tree cover. In comparison, reforestation means re-establishing forest that have either been cut down or lost due to natural causes, such as fire, storm, etc. There are three types of afforestation: natural regeneration, agroforestry, commercial plantations. There are several benefits from afforestation such as carbon sequestration, increasing rainfall, prevention of topsoil erosion, flood and landslide mitigation, barriers against high winds, shelter for wildlife, employment and alternative sources of wood products.
Nan'ao or Nanao, formerly romanized Namoa, is an island and county of the prefecture-level city of Shantou in Guangdong Province, China. The county spans a land area of 114.74 square kilometres (44.30 sq mi), and sea area of 4,600 square kilometres (1,800 sq mi). As of 2019, the county had a permanent population of approximately 62,600.
The Great Green Wall, officially known as the Three-North Shelter Forest Program, also known as the Three-North Shelterbelt Program, is a series of human-planted windbreaking forest strips (shelterbelts) in China, designed to hold back the expansion of the Gobi Desert, and provide timber to the local population. The program started in 1978, and is planned to be completed around 2050, at which point it will be 4,500 kilometres (2,800 mi) long.
China primarily produces rice, wheat, potatoes, tomato, sorghum, peanuts, tea, millet, barley, cotton, oilseed, corn and soybeans.
Environmental policy in China is set by the National People's Congress and managed by the Ministry of Environmental Protection of the People's Republic of China. Under the Ministry of Environmental Protection of the People's Republic of China, the Department of Policies, Laws, and Regulations is in charge of establishing and strengthening basic laws and policies such as environmental laws, administrative policies and economical regulations. It is also responsible for the development of national environmental protection policy and macro strategy.
China has an upper middle income, developing, mixed, socialist market economy incorporating industrial policies and strategic five-year plans. It is the world's second largest economy by nominal GDP, behind the United States, and the world's largest economy since 2016 when measured by purchasing power parity (PPP). Due to a volatile currency exchange rate, China's GDP as measured in dollars fluctuates sharply. China accounted for 19% of the global economy in 2022 in PPP terms, and around 18% in nominal terms in 2022. Historically, China was one of the world's foremost economic powers for most of the two millennia from the 1st until the 19th century. The economy consists of public sector enterprise, state-owned enterprises (SOEs) and mixed-ownership enterprises, as well as a large domestic private sector and openness to foreign businesses in a system. Private investment and exports are the main drivers of economic growth in China; but the Chinese government has also emphasized domestic consumption.
Resources are classified as either biotic or abiotic on the basis of their origin. India contains a multitude of both types of resource and its economy, especially in rural areas, is heavily dependent on their consumption or export. Due to overconsumption, they are rapidly being depleted.
Desert greening is the process of afforestation or revegetation of deserts for ecological restoration (biodiversity), sustainable farming and forestry, but also for reclamation of natural water systems and other ecological systems that support life. The term "desert greening" is intended to apply to both cold and hot arid and semi-arid deserts. It does not apply to ice capped or permafrost regions. It pertains to roughly 32 million square kilometres of land. Deserts span all seven continents of the Earth and make up nearly a fifth of the Earth's landmass, areas that recently have been increasing in size. As some of the deserts expand and global temperatures increase, the different methods of desert greening may provide a potential solution. Planting suitable flora in deserts has a range of environmental benefits from carbon sequestration to providing habitat for native desert fauna to generating employment opportunities to creation of habitable areas for local communities. The prevention of land desertification is one of 17 sustainable development objectives outlined by the United Nations, desert greening is a process that aims to not only combat desertification but to foster an environment where plants can create a sustainable environment for all forms of life while preserving its integrity.
Deforestation in the Democratic Republic of the Congo (DRC) is an environmental conflict of international importance. Most of the deforestation takes place in the Congo Basin, which holds the second largest rainforest of the world after the Amazon. Roughly fifty percent of the remaining rainforest in the Congo Basin lies within the boundaries of the DRC.
There are many pressing environmental issues in Mongolia that are detrimental to both human and environmental wellness. These problems have arisen in part due to natural factors, but increasingly because of human actions. One of these issues is climate change, which will be responsible for an increase in desertification, natural disasters, and land degradation. Another is deforestation, which is expanding due to human recklessness, pests, disease, and fires. Mongolian lands are becoming more arid through desertification, a process that is being exacerbated due to irresponsible land use. Additionally, more and more species are disappearing and at risk for extinction. Moreover, especially in population centers, Mongolians deal with air and water pollution caused by industrialization.
Grassland accounts for China’s largest land resource, covering nearly 41 percent of the national land area. Grassland in the Chinese context comprises widely varying eco-types ranging from the meadows and forest steppes of former Manchuria in the Northeast; and the high, alpine pastures of the Qinghai-Tibetan plateau; to the (semi)arid steppes and deserts in China’s Great West. Due to this geographical and ecological variety, the utilization of grassland is not limited to grazing and forage production, but extends to the exploitation of grassland and forest by-products, as well as the exploitation of mineral resources. Of the total of around 393 million hectares of grassland in China, 84 percent or 331 million hectares is deemed usable for grazing.
Wales has a surface area of 2,628,779 km2 or 2,077,900 ha. It has a border with England to the east, and is bounded by the Irish Sea to the north and west, and by the Bristol Channel to the south. It has an oceanic temperate climate which is markedly influenced by the North Atlantic Current carrying warm water from tropical latitudes. As a result, it has a much milder climate than most places in the world at similar latitudes. Altitudes range from sea-level to 10985 m on the Snowdon Massif.
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