India

C

Plant and Animal Life

India is home to abundant plant and animal life and has a wide range of climates that accommodate a diversity of species throughout the country. Broadly classified, there are seven major regions for plant and animal life in India: the arid Indus Plain, the Gangetic Plain, the Himalayas, Assam Valley, the Malabar Coast, the peninsular plateau, and the Andaman and Nicobar Islands.

India has an estimated 45,000 species of plants, 33 percent of which are native. There are 15,000 flowering plant species, 6 percent of the world’s total. About 3,000 to 4,000 of the total number of plant species are believed to be in danger of extinction.

In the arid areas that adjoin Pakistan, the eastern part of the Indus Plain, most plant life is sparse and herblike. Various thorny species, including capers (spiny shrubs with pale flowers) and jujubes (fruit-producing trees with veined leaves and yellowish flowers), are common. Bamboo grows in some areas, and among the few varieties of trees is the palm. The Gangetic Plain, which has more moisture, supports many types of plant life. Vegetation is especially luxuriant in the southeastern part of the plains region, where the mangrove and the sal, a hardwood timber tree, flourish.

In the Himalayas many varieties of arctic flora are found on the higher slopes. The lower levels of the mountain range support many types of subtropical plant life, notably the orchid. Dense forests remain in the few areas where agriculture and commercial forestry have had little effect. Coniferous trees, including cedar and pine, predominate in the northwestern Himalayan region. On the Himalayas’ eastern slopes, tropical and subtropical types of vegetation abound. Here rhododendrons grow to tree height. Among the predominant trees are oak and magnolia.

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The Assam Valley features evergreen forests, bamboo, and areas of tall grasses. The Malabar Coast, which receives a large amount of rainfall, is thickly wooded. Evergreens, bamboo, and several varieties of valuable timber trees, including teak, predominate in this region. Extensive tracts of impenetrable jungle are found in the swampy lowlands and along the lower elevations of the Western Ghats. The vegetation of the peninsular plateau is less luxuriant, but thickets of bamboo, palm, and deciduous trees grow throughout the Deccan Plateau. The Andaman and Nicobar Islands have tropical forests, both evergreen and semievergreen.

India is inhabited by a wide variety of animal life, including almost 5,000 species of larger animals. Several species of the cat family—including the tiger, panther, Asiatic lion, Asiatic cheetah, snow leopard, jungle cat, and clouded leopard—live in some areas of India. Most of these species are under threat of extinction. Elephants roam the lower slopes of the central and eastern Himalayan foothills and the remote forests of the southern Deccan Plateau. Other large quadrupeds (four-footed animals) native to India include rhinoceros (under threat of extinction), black bear, wolf, jackal, dhole (wild Asian dog), wild buffalo, wild hog, antelope, and deer. Several species of monkeys live throughout the country.

Various species of wild goats and sheep, including ibexes and serows, are found in the Himalayas and other mountainous areas. The pygmy hog, bandicoot rat, and tree mouse are typical types of smaller native quadrupeds; bats are also abundant. Venomous reptiles, including the cobra, krait, and saltwater snake, are especially numerous in India, and pythons and crocodiles are also found. Tropical birds of India include the parrot, peacock, kingfisher, and heron. The rivers and coastal waters of India teem with fish, including many edible varieties.

D

Natural Resources

India’s most important natural resources are land and water. About 54 percent of the land area is arable, and groundwater resources are considerable. The Gangetic Plain is one of India’s most fertile regions. The soils of this region were formed by the alluvial deposits of the Ganges and its tributaries. In this area, as well as in the peninsular deltas, groundwater is plentiful and close to the surface, making year-round irrigation possible. These regions may produce two or three harvests a year. Most of India’s wheat and rice are grown here.

The black and red soils of the Deccan Plateau, although not as thick as the Gangetic Plain alluvium, are also fertile. The groundwater resources of the Deccan are significant but more difficult to reach, so most farmers rely on the monsoons for water. Farmers typically grow a single crop, including cotton and coarse grains such as sorghum, maize (corn), and millet.

Forests constitute another natural resource for India, with woodlands covering 23 percent of its land area. India’s highly varied climate and land produce diverse forests. The majority are deciduous forests, which are either tropical-dry, experiencing a significant dry season, or tropical-moist, receiving relatively uniform rainfall year-round. The remainder of forests range in type from tropical evergreen to Himalayan temperate and alpine. Major commercial tree species include teak, rosewood, and sal. Bamboo is a widely used construction material. Despite significant overuse of forest resources in the past, government and private efforts have reduced the rate of deforestation in natural forests and increased new plantations of trees.

The mineral resources of India include a vast belt of coal reserves stretching from the eastern part of Mahārāshtra state through Chhattisgarh and Jharkhand states to West Bengal state. The same geographical area, with the addition of Orissa state, contains major deposits of bauxite. Iron ore is also found here, as well as in the Western Ghats in and around Goa. Other mineral deposits include manganese (found mainly in central India), copper, and chromite. There are significant oil and natural gas reserves in Assam and Gujarāt states, and on the continental shelf off Mahārāshtra and Gujarāt. India also has ample reserves of phosphate rock, apatite, gypsum, limestone, and mica.

E

Climate

India’s shape, unusual topography, and geographical position give it a diverse climate. Most of India has a tropical or subtropical climate, with little variation in temperature between seasons. The northern plains, however, have a greater temperature range, with cooler winters and hotter summers. The mountain areas have cold winters and cool summers. As elevations increase sharply in the mountains, climate type can change from subtropical to polar within a few miles.

India’s seasonal cycle includes three main phases: the cool, dry winter from October to March; the hot, dry summer from April to June; and the southwest monsoon season of warm, torrential rains from mid-June to September. India’s winter season brings cold temperatures to the mountain slopes and northern plains; temperatures in the Thar Desert reach freezing at night. Farther south, temperatures are mild. Average daily temperatures in January range from 13° to 27°C (55° to 81°F) in the northeastern city of Kolkata; from 8° to 21°C (46° to 70°F) in the north central city of New Delhi; from 19° to 30°C (67° to 85°F) in the west central coast city of Mumbai (formerly Bombay); and from 19° to 29°C (67° to 85°F) in the vicinity of Chennai (formerly Madras) on the southeastern coast. Dry weather generally accompanies the cool winter season, although severe storms sometimes traverse the country, yielding slight precipitation on the northern plains and heavy snowfall in the Himalayas.

India’s hot and dry season reaches its peak during May, when temperatures as high as 49°C (120°F) are commonly recorded in the northern plains. Temperatures in the southern peninsula are somewhat lower, averaging 35° to 40°C (95° to 104°F). At higher altitudes, as in the Western Ghats and the Himalayas, temperatures are considerably cooler.

The intense heat breaks when the summer monsoon season arrives in June. For most of the year the monsoons, or seasonal winds, blow from the northeast. In the summer months, however, they begin to blow from the southwest, absorbing moisture as they cross the Indian Ocean. This warm, moist air creates heavy rains as it rises over the Indian Peninsula and is finally forced up the slopes of the Himalayas. The rains start in early June on a strip of coast lying between the Arabian Sea and the foot of the Western Ghats. A second “arm” of the monsoon starts from the Bay of Bengal in the northeast and gradually extends up the Gangetic Plain, where it meets the Arabian Sea “arm” in the Delhi region around July 1. In July the average daily temperature range is 26° to 32°C (79° to 89°F) in Kolkata; 27° to 35°C (80° to 94°F) in New Delhi; 25° to 30°C (78° to 86°F) in Mumbai; and 26° to 36°C (79° to 96°F) in Chennai.

The monsoon season is critical to India. Farming depends heavily on the monsoon, even though artificial sources of irrigation are also commonly used. The economy prospers when the monsoon season is normal and plummets when it is not. In the past a failure of the monsoon has brought abnormally low rains in crucial food-growing regions, leading to famine. A failed monsoon season in the dryland areas of the Deccan Plateau can mean poor or nonexistent harvests for that year’s crop. In the Gangetic Plain, the groundwater needed for irrigating the winter crop depends on the monsoon for replenishing. However, an excessive monsoon may also spell disaster, especially in the Gangetic Plain of eastern Uttar Pradesh and Bihār, where rivers can flood and wash away homes and fields.

The average annual rainfall for India as a whole is 1,250 mm (49 in). The heaviest rainfall occurs along the Western Ghats, often more than 3,175 mm (125 in), and on the slopes of the eastern Himalayas and the Khāsi Hills (of Meghalaya), where the town of Cherrapunji receives 10,900 mm (430 in) annually. The entire northeast region averages more than 2,000 mm (80 in) annually, with Jharkhand, Orissa, and the Bengal region receiving nearly as much. Rain and snow fall in abundance on the entire Himalayan range. New Delhi receives an annual average of 800 to 1,000 mm (32 to 40 in) of rain, and the broad swath of land extending to the south, much of it in the rain shadow of the Western Ghats, receives about the same or a little more.

F

Environmental Issues

India’s main environmental concern is its growing population, which is expected to increase to 1.8 billion by the year 2050. In order to feed so large a population, more groundwater will be needed to irrigate crops, increasing the risk of poor soil quality due to salinization (increased salt levels). More artificial fertilizer will likely be applied to crop fields, posing threats to drinking water. The demand for meat has increased with greater levels of prosperity, resulting in overgrazing and increasing wasteland. The demand for fuelwood has grown with rural populations, leading to the loss of trees and forests. To decrease reliance on fuelwood, the government has promoted the use of biogas (a mixture of methane and carbon dioxide produced by decomposing organic matter) for cooking fuel.

Expanding agrarian population has also affected wildlife. Farmers and herders have encroached on national park and other wildlife sanctuary land, and the spread of cultivation has limited the range of animals such as tigers and elephants outside of parks as well. Poaching is also a problem. Thousands of India’s plant species are critically endangered, mainly because of the population-related pressures of deforestation and agriculture. Wetlands cover about 18 percent of the land, but most of them are under rice-paddy cultivation. To help combat these problems, the Indian government has enacted strong laws for forest conservation, wetland preservation, and wildlife protection. The Ministry of Environment and Forests was established in 1985.

India has a severe air pollution problem generated by industrial effluents and vehicle emissions. Water-treatment facilities have not kept pace with the increase in urban populations, and pollution of rivers and groundwater is a significant and worsening problem. Another major problem is toxic waste, generated by industry and deposited in rivers and oceans and on low-lying land within factory boundaries. The large number of small industrial workshops makes it difficult to enforce laws against industrial waste pollution.

A National Wildlife Action Plan provides a framework for species protection and directs the establishment of a protected areas network covering all the major habitat types. In 2004 about 5 percent of India’s land area was under protection, in 539 separate protected areas. India has a national goal of covering one-third of its land area with existing or planted forests. India has had tremendous success with species conservation. World-renowned programs include Project Tiger, which has established nine special tiger reserves, and the Crocodile Breeding and Management Project. Many nongovernmental organizations aid India’s conservation efforts.

III

The People of India

India’s people inherited a civilization that began more than 4,500 years ago, one that has proven capable of absorbing and transforming the peoples and cultures that over the centuries have come to the subcontinent. India has long supported a large population of great diversity. The people in India’s intricate network of communities speak literally thousands of languages, practice all of the world’s great religions, and participate in a complex social structure that incorporates the caste system, a rigid system of social hierarchy.

India is one of the world’s most populous countries. In 2007 it had a population of 1,129,866,154, yielding an average population density of 380 persons per sq km (984 per sq mi). An estimated 71 percent of India’s inhabitants live in rural areas. The population grew by 17.2 percent between 1995 and 2005, down from 24 percent growth between 1981 and 1991. It is estimated that the rate of growth will slow even further in the coming decades, but India’s population nevertheless is expected to continue to increase. The annual growth rate in 2007 was 1.6 percent.

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