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| Tropical Asia | |
|---|---|
| Name | Tropical Asia |
| Location | Asia |
Tropical Asia is the broad biogeographic and cultural zone of Asia lying within the tropics, encompassing parts of South Asia, Southeast Asia, and southern East Asia. It includes island chains of the Indian Ocean and Pacific Ocean and hosts major rivers, archipelagos, and biodiversity hotspots. The region has been shaped by interactions among empires, trading networks, religious movements, and colonial powers, producing dense urban centers and distinct cultural landscapes.
Tropical Asia broadly spans peninsular India, the Indian subcontinent's southern lowlands, the Andaman and Nicobar Islands, Sri Lanka, the Malay Peninsula, the islands of Indonesia, the Philippines, Borneo, Sumatra, Java and Sulawesi, along with much of Myanmar, southern Thailand, southern China's Hainan, and the islands of the South China Sea and East Timor. Major physiographic features include the Himalayas' southern fringe, the Deccan Plateau's tropical margins, the Irrawaddy River, the Ganges River delta, the Mekong River, the Red River, and the Kapuas River. Plate tectonics involving the Indian Plate, the Eurasian Plate, and the Australian Plate produce volcano arcs such as the Ring of Fire islands of Sumatra and Java. Boundaries often follow climatic isotherms near the Tropic of Cancer and the Tropic of Capricorn and ecological transitions near the Himalayas and the Tibetan Plateau.
Tropical Asia is dominated by the South Asian Monsoon system and the East Asian Monsoon, producing wet and dry seasons across Bangladesh, Nepal's lowlands, and Sri Lanka. Coastal regions experience Indian Ocean Dipole and El Niño–Southern Oscillation modulation, affecting rainfall in Thailand, Vietnam, and the Philippines. Biomes include tropical rainforests of Borneo and Sumatra, tropical deciduous forests on the Deccan Plateau, mangrove ecosystems in the Sundarbans and Irrawaddy Delta, and montane cloud forests on Mount Kinabalu and Mount Rinjani. Coral reef systems fringe the Andaman Sea, the Gulf of Thailand, and the Coral Triangle around Indonesia and the Philippines.
The flora contains dipterocarp-dominated forests in Borneo and Palawan, peat swamp forests in Kalimantan, and extensive mangrove species in the Sundarbans across Bangladesh and India. Iconic fauna includes the Bengal tiger in India and Bangladesh, the Asian elephant across India, Myanmar, and Thailand, the orangutans of Borneo and Sumatra, the komodo dragon on Komodo Island, and the Sunda pangolin across Southeast Asia. Endemic birds occur on Sulawesi and the Philippines such as species linked to Wallacea and the Indo-Burma hotspot. Freshwater fauna of the Mekong River include giant freshwater fish documented by researchers studying Tonlé Sap and the Mekong giant catfish. Conservation work by organizations like World Wide Fund for Nature intersects with national parks such as Gunung Leuser National Park, Taman Negara, and Yala National Park.
The region contains megacities such as Mumbai, Jakarta, Manila, Bangkok, and Chennai alongside rural deltaic populations in the Ganges Delta and Irrawaddy Delta. Major linguistic families include Indo-Aryan languages in parts of India and Bangladesh, Dravidian languages in South India and Sri Lanka, Austronesian languages across Indonesia and the Philippines, and Sino-Tibetan languages in parts of Myanmar and Yunnan. Religious traditions central to social life include Hinduism in India and Nepal, Buddhism in Myanmar, Thailand, and Sri Lanka, Islam in Indonesia, Malaysia, and Bangladesh, and Christianity in parts of the Philippines and East Timor. Colonial legacies from British Raj, Dutch East Indies, French Indochina, and Spanish Philippines shaped administrative boundaries and migration; contemporary regional organizations include the Association of Southeast Asian Nations and the South Asian Association for Regional Cooperation.
Historic empires and polities that influenced the region include the Maurya Empire, the Chola dynasty, the Srivijaya maritime state, the Majapahit Empire, and the Khmer Empire. Trade networks such as the Maritime Silk Road and the Indian Ocean trade connected ports like Calicut, Malacca Sultanate, Galle, and Aden with merchants from Arabia, China, and Europe. Religious transmission routes brought Theravada Buddhism from Sri Lanka to Myanmar and Thailand, Hinduism influence to Southeast Asia via Angkor, and Islam through Sufi traders to Aceh and Malacca. Colonial confrontations included the Anglo-Burmese Wars, the Vietnam War in Indochina, and anti-colonial movements linked to leaders like Mahatma Gandhi and Sukarno. Cultural regions are often described as South Asia, Southeast Asia, and the tropical fringes of East Asia with hybrid architectures seen in sites such as Angkor Wat, Borobudur, Sigiriya, and Forts of Goa.
Agricultural systems range from wet-rice terracing in the Philippines and Yunnan to cash-crop plantations of rubber in Malaysia and Thailand, oil palm in Indonesia and Malaysia, and tea estates in Assam and Sri Lanka. Fisheries and aquaculture are vital in the South China Sea, the Bay of Bengal, and the Gulf of Thailand, supporting port cities like Chittagong and Ho Chi Minh City. Industrial hubs emerged in Chennai, Surabaya, Ho Chi Minh City, and Kuala Lumpur with supply chains linked to Globalization and trade agreements such as ASEAN Free Trade Area. Infrastructure investments include projects like Asian Highway Network corridors and the China–Pakistan Economic Corridor’s regional impacts. Land use change from shifting cultivation practices and plantation expansion has transformed landscapes across Borneo, Sumatra, and the Deccan Plateau.
Key environmental issues include deforestation in Borneo and Sumatra driven by oil palm and timber extraction, peatland drainage causing haze events affecting Singapore and Kuala Lumpur, coral reef degradation in the Coral Triangle, and riverine pollution in the Ganges and Mekong. Climate change influences glacial melt in the Himalayas affecting downstream flow to populations in Nepal and Bangladesh, while sea-level rise threatens deltas such as the Sundarbans and low-lying islands in the Maldives (located in the tropical Indian Ocean adjacent to the region). Conservation responses involve transnational agreements like the Convention on Biological Diversity and initiatives by NGOs such as Conservation International and BirdLife International, alongside protected areas including Kerala's Periyar National Park and Bukit Barisan Selatan National Park. Sustainable development debates engage institutions like the World Bank and the Asian Development Bank over balancing resource extraction, indigenous rights (e.g., Dayak and Iban communities), and biodiversity preservation.
Category:Regions of Asia