Paddy field in the context of Ox

Agricultural land is typically land devoted to agriculture, the systematic and controlled use of other forms of life—particularly the rearing of livestock and production of crops—to produce food for humans. It is generally synonymous with both farmland or cropland, as well as pasture or rangeland.

The United Nations Food and Agriculture Organization (FAO) and others following its definitions, however, also use agricultural land or agricultural area as a term of art, where it means the collection of:

A flood is an overflow of water (or rarely other fluids) that submerges land that is usually dry. In the sense of "flowing water", the word may also be applied to the inflow of the tide. Floods are of significant concern in agriculture, civil engineering and public health. Human changes to the environment often increase the intensity and frequency of flooding. Examples for human changes are land use changes such as deforestation and removal of wetlands, changes in waterway course or flood controls such as with levees. Global environmental issues also influence causes of floods, namely climate change which causes an intensification of the water cycle and sea level rise. For example, climate change makes extreme weather events more frequent and stronger. This leads to more intense floods and increased flood risk.

Natural types of floods include river flooding, groundwater flooding coastal flooding and urban flooding sometimes known as flash flooding. Tidal flooding may include elements of both river and coastal flooding processes in estuary areas. There is also the intentional flooding of land that would otherwise remain dry. This may take place for agricultural, military, or river-management purposes. For example, agricultural flooding may occur in preparing paddy fields for the growing of semi-aquatic rice in many countries.

The history of Southeast Asia covers the people of Southeast Asia from prehistory to the present in two distinct sub-regions: Mainland Southeast Asia (or Indochina) and Maritime Southeast Asia (or Insular Southeast Asia). Mainland Southeast Asia comprises Cambodia, Laos, Myanmar (or Burma), Peninsular Malaysia, Thailand and Vietnam whereas Maritime Southeast Asia comprises Brunei, Cocos (Keeling) Islands, Christmas Island, East Malaysia, East Timor, Indonesia, Philippines and Singapore.

The earliest Homo sapiens presence in Mainland Southeast Asia can be traced back to 70,000 years ago and to at least 50,000 years ago in Maritime Southeast Asia. Since 25,000 years ago, East Asian-related (basal East Asian) groups expanded southwards into Maritime Southeast Asia from Mainland Southeast Asia. As early as 10,000 years ago, Hoabinhian settlers from Mainland Southeast Asia had developed a tradition and culture of distinct artefact and tool production. During the Neolithic, Austroasiatic peoples populated Mainland Southeast Asia via land routes, and sea-borne Austronesian immigrants preferably settled in Maritime Southeast Asia. The earliest agricultural societies that cultivated millet and wet-rice emerged around 1700 BCE in the lowlands and river floodplains of Southeast Asia.

Rice-duck farming is the polycultural practice of raising ducks and rice on the same land. It has existed in different forms for centuries in Asian countries including China, Indonesia, and the Philippines, sometimes also involving fish. The practice is beneficial as it yields harvests of both rice and ducks. The two are in addition synergistic, as the rice benefits from being weeded and fertilized by the ducks, and having pests removed, while the ducks benefit from the food available in the rice paddy fields, including weeds and small animals.

Kelantan (Malay pronunciation: [kəˈlantan]; Kelantanese Malay: Klate; Pattani Malay pronunciation: [kläˈtɛ]) is a state in Malaysia. The capital, Kota Bharu, includes the royal seat of Kubang Kerian. The honorific name of the state is Darul Naim ("The Blissful Abode"). Kelantan is located in the north-eastern corner of Peninsular Malaysia. Kelantan is an agrarian state with paddy fields, fishing villages and casuarina-lined beaches. Kelantan is home to some of the most ancient archaeological discoveries in Malaysia, including several prehistoric aboriginal settlements.

Due to Kelantan's relative isolation and largely rural lifestyle, Kelantanese culture differs somewhat from Malay culture in the rest of the peninsula; this is reflected in the cuisine, arts and the unique Kelantanese Malay language, which is not readily intelligible with standard Malay.

Methanogens are anaerobic archaea that produce methane as a byproduct of their energy metabolism, i.e., catabolism. Methane production, or methanogenesis, is the only biochemical pathway for ATP generation in methanogens. All known methanogens belong exclusively to the domain Archaea, although some bacteria, plants, and animal cells are also known to produce methane. However, the biochemical pathway for methane production in these organisms differs from that in methanogens and does not contribute to ATP formation. Methanogens belong to various phyla within the domain Archaea. Previous studies placed all known methanogens into the superphylum Euryarchaeota. However, recent phylogenomic data have led to their reclassification into several different phyla. Methanogens are common in various anoxic environments, such as marine and freshwater sediments, wetlands, the digestive tracts of animals, wastewater treatment plants, rice paddy soil, and landfills. While some methanogens are extremophiles, such as Methanopyrus kandleri, which grows between 84 and 110 °C, or Methanonatronarchaeum thermophilum, which grows at a pH range of 8.2 to 10.2 and a Na concentration of 3 to 4.8 M, most of the isolates are mesophilic and grow around neutral pH.

The Liaohe Plain is a paddy plain located in the southern tip of Northeast China, part of the greater Northeast China Plain. The Liaohe Plain is one of the most important industrial zones in Liaoning, and with a cultivated land area of 144 million hectares, the area of the paddy-growing fields of its rice field station has increased by 977.1 sq km, from 1988 to 2006.

The Lakshmana Tirtha (Lakshmantīrtha River) is a river of Karnataka, India. It rises in Kodagu district and flows eastward. It joins the Kaveri in the Krishna Raja Sagara reservoir.

The river originates at the height of 1450 meters in the Brahmagiri range of Kodagu district. Unlike Kaveri, Lakshmana Tirtha flows in a relatively flat-terrain region of South Kodagu. An increase in the water level during monsoon, results in flooding of adjacent paddy fields. The river meanders throughout its course and enters Mysore district through Nagarahole National Park. Hunsur is located on the banks of this river and is the source of drinking water for the people of Hunsur. The river finally meets Kaveri at Krishna Raja Sagara reservoir at an elevation of 750 meters above MSL, after traversing a length of about 148.82 kilometers.

A scarecrow is a decoy or mannequin that is often in the shape of a human. Humanoid scarecrows are usually dressed in old clothes and placed in open fields to discourage birds from disturbing and feeding on recently cast seed and growing crops. Scarecrows are used around the world by farmers, and are a notable symbol of farms and the countryside in popular culture.