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Louisiana's ecology is in a land area of 51,840 square miles (134,264 km 2); the state is 379 miles (610 km) long and 130 miles (231 km) wide and is located between latitude: 28° 56′ N to 33° 01′ N, and longitude: 88° 49′ W to 94° 03′ W, with a humid subtropical climate (Köppen climate classification Cfa).
Andenes in the Sacred Valley at Pisac, Peru Diagram of Inca engineering of andenes. An andén (plural andenes), Spanish for "platform", [1] is a stair-step like terrace dug into the slope of a hillside for agricultural purposes. The term is most often used to refer to the terraces built by pre-Columbian cultures in the Andes mountains of South ...
In the South American Andes, farmers have used terraces, known as andenes, for over a thousand years to farm potatoes, maize, and other native crops. Terraced farming was developed by the Wari culture and other peoples of the south-central Andes before 1000 AD, centuries before they were used by the Inca, who adopted them. The terraces were ...
The term Interandean valles refers to those valleys located in the Andes mountains. The interandean valles comprise most of the mid-elevation areas of the "sierra" of Peru, "los valles" of Bolivia and the "Cuyo region" of Argentina. In Colombia the main interandean valles are formed by Magdalena River and its affluent, the Cauca River.
The Texas–Louisiana Coastal Marshes region is distinguished from ecoregions 34h and 34i by its extensive freshwater and saltwater coastal marshes, lack of barrier islands and fewer bays, and its wetter, more humid climate. Annual precipitation is 48 to 54 inches (120 to 140 cm) in Texas and up to 60 inches (150 cm) in Louisiana.
A series of terraces along a river. The oldest terraces (T1) are higher standing than the younger terraces (T3). The present floodplain (T4) will soon become the youngest terrace surface as the river incises. Terraces can be formed in many ways and in several geologic and environmental settings. By studying the size, shape, and age of terraces ...
A marsh terrace is an artificially created berm that is built in a wetland to prevent erosion, reduce wave energy, and improve habitat for wildlife. Marsh terracing is most common throughout the upper Gulf Coast of the United States , where it is used to prevent coastal erosion , with 980 linear km (609 mi) having been built in Texas and ...
Nested fill terraces: Nested fill terraces are the result of the valley filling with alluvium, the alluvium being incised, and the valley filling again with material but to a lower level than before. The terrace that results for the second filling is a nested terrace because it has been “nested” into the original alluvium and created a terrace.