South Deccan Plateau dry deciduous forests
Encyclopedia
The South Deccan Plateau dry deciduous forests is a dry broadleaf forest
Tropical and subtropical dry broadleaf forests
The tropical and subtropical dry broadleaf forest biome, also known as tropical dry forest, is located at tropical and subtropical latitudes. Though these forests occur in climates that are warm year-round, and may receive several hundred centimeters of rain per year, they have long dry seasons...

 ecoregion
Ecoregion
An ecoregion , sometimes called a bioregion, is an ecologically and geographically defined area that is smaller than an ecozone and larger than an ecosystem. Ecoregions cover relatively large areas of land or water, and contain characteristic, geographically distinct assemblages of natural...

 of southern India
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

. The ecoregion lies in the southern Deccan Plateau
Deccan Plateau
The Deccan Plateau is a large plateau in India, making up the majority of the southern part of the country. It rises a hundred meters high in the north, rising further to more than a kilometers high in the south, forming a raised triangle nested within the familiar downward-pointing triangle of...

, within the Western Ghats
Western Ghats
The Western Ghats, Western Ghauts or the Sahyādri is a mountain range along the western side of India. It runs north to south along the western edge of the Deccan Plateau, and separates the plateau from a narrow coastal plain along the Arabian Sea. The Western Ghats block rainfall to the Deccan...

' rain shadow
Rain shadow
A rain shadow is a dry area on the lee side of a mountainous area. The mountains block the passage of rain-producing weather systems, casting a "shadow" of dryness behind them. As shown by the diagram to the right, the warm moist air is "pulled" by the prevailing winds over a mountain...

. It receives 900 to 1500 mm (35.4 to 59.1 in) of rain annually, much less than the North Western Ghats moist deciduous forests
North Western Ghats moist deciduous forests
The North Western Ghats moist deciduous forests is a tropical moist broadleaf forest ecoregion of southwestern India. It lies between 250 and 1000 meters elevation in the northern portion of the Western Ghats range, from their northern end in Maharashtra state, through Karnataka to the transitional...

 and South Western Ghats moist deciduous forests
South Western Ghats moist deciduous forests
The South Western Ghats moist deciduous forests is a tropical moist broadleaf forest ecoregion of southern India. It covers the southern portion of the Western Ghats range and the Nilgiri Hills between 250 and 1000 meters elevation in Kerala, Karnataka and Tamil Nadu states.-Setting:The ecoregion...

 that lie to the west. The ecoregion covers the southern portion of Karnataka
Karnataka
Karnataka , the land of the Kannadigas, is a state in South West India. It was created on 1 November 1956, with the passing of the States Reorganisation Act and this day is annually celebrated as Karnataka Rajyotsava...

's Malenadu region, extending south into the Kongu Nadu
Kongu Nadu
Kongu Nadu is a region comprising the western part of the Tamil Nadu India. The region is bounded on the west and north-west by the Karnataka state, on the west by the Kerala state, on the east by Tondai Nadu, on the south-east by Chola Nadu and on the south by Madurai regions of...

 region of eastern Tamil Nadu
Tamil Nadu
Tamil Nadu is one of the 28 states of India. Its capital and largest city is Chennai. Tamil Nadu lies in the southernmost part of the Indian Peninsula and is bordered by the union territory of Pondicherry, and the states of Kerala, Karnataka, and Andhra Pradesh...

.

The South Deccan Plateau dry deciduous forests receive most of their rainfall with the June–September southwest monsoon
Monsoon of Indian subcontinent
A Monsoon of the India is among the several geographically distributed observations of the global monsoons. In the subcontinent, it is one of oldest weather observations, an economically important weather pattern and the most anticipated weather event and unique weather phenomenon. Yet it is only...

, and are characterized by tall trees that drop their leaves during the dry winter and spring months. Much of the forest has been degraded through over-use, and thorn forests and shrub thickets are common. To the north and east, the dry deciduous forests transition to the Deccan thorn scrub forests
Deccan thorn scrub forests
The Deccan thorn scrub forests is a xeric shrubland ecoregion of India and northernmost Sri Lanka, a large area that was once forest and home to large numbers of elephants and tigers.-Location and description:...

.

The ecoregion includes the cities of Bangalore
Bangalore
Bengaluru , formerly called Bengaluru is the capital of the Indian state of Karnataka. Bangalore is nicknamed the Garden City and was once called a pensioner's paradise. Located on the Deccan Plateau in the south-eastern part of Karnataka, Bangalore is India's third most populous city and...

 and Mysore in Karnataka, and Coimbatore
Coimbatore
Coimbatore , also known as Kovai , is the second largest city in the Indian state of Tamil Nadu. It is a major commercial centre in Tamil Nadu and is known as the "Manchester of South India"....

, Karur
Karur
Karur is a large town and a municipality in Karur district in the Indian state of Tamil Nadu situated on the banks of Amaravati. Karur district was formed on 30 September 1995 by trifurcating Tiruchirappalli district. It is the administrative headquarters of Karur District. Karur has a very long...

, Erode
Erode
Erode is a city, a municipal corporation and the headquarters of Erode district in the South Indian state of Tamil Nadu.It is situated at the center of the South Indian Peninsula, about southwest from the state capital Chennai and on the banks of the rivers Cauvery and Bhavani, between 11° 19.5"...

 and Salem in Tamil Nadu.

Flora

These forests have three stories, with an upper canopy at 15–25 m (49.2–82 ft), an understory at 10–15 m (32.8–49.2 ft), and undergrowth at 3–5 m (9.8–16.4 ft). Trees are draped in liana
Liana
A liana is any of various long-stemmed, woody vines that are rooted in the soil at ground level and use trees, as well as other means of vertical support, to climb up to the canopy to get access to well-lit areas of the forest. Lianas are especially characteristic of tropical moist deciduous...

s in denser, mature forests. The vegetation is characterized by Acacia catechu
Acacia catechu
Acacia catechu also commonly called Mimosa catechu, is a deciduous, thorny tree which grows up to in height. The plant is called khair in Hindi, and kachu in Malay, hence the name was Latinized to "catechu" in Linnaean taxonomy, as the type-species from which the extracts cutch and catechu are...

, Albizia amara, Anogeissus latifolia
Anogeissus latifolia
Anogeissus latifolia is a species of small to medium-sized tree native to the India, Nepal, Myanmar, and Sri Lanka. Its common names are axlewood , bakli, dhau, dhawa, dhawra, or dhaora , takhian-nu , and raam .It is one of the most useful trees in India...

, Boswellia serrata
Boswellia serrata
Boswellia serrata is Indian frankincense or Salai. It is found in Rajasthan, Madhya Pradesh & Andhara Pradesh in India.- Medical usage :...

, Cassia fistula, Chloroxylon swietenia
Chloroxylon
Chloroxylon swietenia is a tropical hardwood, the sole species in the genus Chloroxylon...

, Dalbergia latifolia
Dalbergia latifolia
Dalbergia latifolia is an economically important timber species native to low elevation tropical monsoon forests of eastern India...

, Diospyros montana, Hardwickia binata, Pterocarpus marsupium, Shorea talura, Sterospermum personatum, Terminalia belirica, Terminalia paniculata
Terminalia paniculata
Terminalia paniculata is a tree native to southwest India . Known in the timber trade as kindal, it has a variety of names in local languages....

, and Terminalia tomentosa. Sandalwood (Santalum album
Santalum album
Santalum album or Indian sandalwood is a small tropical tree, the most commonly known source of sandalwood. This species has been utilised, cultivated and traded for many years, some cultures placing great significance on its fragrant and medicinal qualities. For these reasons it has been...

) was an important species of the forests at one time, but has been selectively removed.
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