Article and Photos by Phil Iddison
Al Ain takes its name from the historic oasis at the heart
of the city. This is appropriate for a city now considered to be the cultural
and educational centre for Abu Dhabi Emirate. Al Ain oasis is the largest of the
five oases which form the UAE portion of the complex of oases. The oasis is
defined by Wadi Sarooj and Wadi Al Ain which form a natural boundary to the
south and the modern city which crowds the oasis on the other edges. On the
western margin is a palace where Sheikh Zayed resided and which has recently
been restored. The suq was the city's main market and is still active on the
northern edge of the oasis. The Eastern and Murabba Forts guard the eastern
fringe and are more than 80 and 50 years old respectively. The accompanying map
indicates the main features of the oasis and its immediate surroundings.
The continued existence of the oasis is due to the key
role it played in the past for the people of Abu Dhabi Emirate. It is an
important focal point in the national psyche having strong associations with
national identity and culture, the country's president and ruler of Abu Dhabi,
Sheikh Zayed, and the people's welfare and survival.
The oasis has probably been in cultivation for at least
four thousand years. Evidence from Hili 8 archaeological excavations confirm
that all the elements of date palm oasis culture were in place in the third
millennium BC. There are substantial occupation mounds within the Al Ain oasis
but none seems to have been explored by archaeologists, probably the only way of
establishing the age of the oasis. However the size and strategic position of
the Al Ain oasis would indicate that it was in cultivation at the same time as
the Hili centre of civilisation.
Date palm with ripe fruit
The oasis covers approximately 1,200 hectares and has
about 60,000 date palms in cultivation. It is almost a mono-culture although a
number of fruit trees planted such as mango, lime orange, banana, fig, guava,
jujube and grape vine can be found but are usually single specimens. Fodder was
grown under the date palms where enough light penetrates; grasses and lucerne or
alfalfa (Medicago sativa) being the common choices. Other crops
such as sugar cane (Saccharum officinarum) and neem
(Azadirachta indica) are occasionally
found under cultivation and there is a healthy population of wild plants.
Details of some are included in these notes. The date palms however dominate the
landscape and are well adapted to the climatic and ground conditions.
The date gardens form an intricate patchwork of
individual land ownership plots of irregular shape. Access is through a network
of winding pathways, varying in width from one to seven meters. Plots were
bounded by old mud brick or, rarely, walls of masonry. These walls were
deteriorating and so the Municipality started a project to replace them with
durable silica masonry blocks of an appropriate color on secure concrete
foundations. This is the latest development phase in the oasis.
The gardens have gates; a very few still have old
iron-studded double leaf wooden gates, often with a small postern gate in one
leaf. Thirty to forty years ago, sheet steel and angle iron became available and
many gates were renewed in this material. Despite the new material, the form of
gate and style of bolt and hasp did not change and padlocks were still used to
lock the gates. The gates were given individual designs in raised iron strips
welded to the surface and these were brightly painted. Geometric and simple
foliage patterns were popular. Similar gates were also used on courtyard homes
and can still be seen all around the city on older properties. One gate has the
UAE flag, so it must have been made no earlier than 1971, the birth of the
country. The new development uses uniform of half-height wooden gates with steel
studs. Although one aspect of the individuality of the gardens is being lost, a
return has been made to the original construction material.
Steel gate with hasp and padlock
The water supply is ground water primarily brought to the
oasis by aflaj, underground water tunnels that tap aquifers many
kilometers away towards the mountains. They are of great antiquity and are the
life-blood of the oasis. Aflaj are like trunk water mains, bringing water
great distances, preventing loss by evaporation and relying on gravity to make
the water flow.
There are two main falaj, the Al Aini and
Dawoodi. These approach the oasis from the southeast, respectively passing
over (by means of an aqueduct) and under Wadi Sarooj. These supplies are
distributed through an intricate network of channels, now mostly of cement or
concrete for durability. The rota for water distribution is strictly enforced
and is achieved by blocking channels to direct the water to the required area.
The nature and quality of the soil is the reason for the
presence of the oasis at this particular location. Elsewhere in Al Ain the
ground is composed of sand and gravel. This type of ground was suitable for
annual crops such as wheat, barley and vegetables which relied on the winter
rains or well water for a limited period of the year. At this location Wadi
Sarooj flows around the natural barrier of an outlying rock ridge from Jebel
Hafit. Over the millennia, the wadi has brought fine silts and clays to the
oasis area, the products of weathering of the mountain rocks to the east and
south. The clay ensures good water retention. It is a good base for continuous
cultivation and also makes a good building material as can be seen in the
original mud brick walls. Excavation for brick making and to level plots,
combined with the natural ground contours, has lowered gardens levels well below
the paths in places. The paths probably started as raised bunds separating the
plots for irrigation purposes and these would naturally be used for access as
the ground is very soft when saturated. Over a period of time, the bunds were
walled as plot security was established.
There are few dwellings within the oasis. People lived on
the fringe as the land was too valuable for cultivation to be used for village
space. Living conditions were probably also better outside the oasis with less
humidity although the shade would have been welcome. There are a number of
mosques spread at regular intervals so that workers could perform their regular
Female flower spray of date palm (Phoenix
Date Palm Cultivation
Man's exploitation of the date palm started in the
Chalcolithic period. The date palm, Phoenix dactylifera, is
indigenous to the hot and dry areas of the Middle East. The date fruit was a
mainstay of local nutrition, providing a dependable supply of high energy food
with excellent keeping properties. Together with cereal grains, various milks,
dried fish and a little meat it formed the basis of the local diet.
The date palm is dioecious, that is there are separate male and female
plants. One male palm is sufficient for the natural fertilization of 25-50
female palms. This is the ratio usually planted in date gardens. If you plant a
date stone you have a 50/50 chance of getting a female plant and a one in ten
chance of getting good fruit. Not very good odds when you may have to wait for
five years before the palm bears fruit. Traditionally, propagation has therefore
been by means of offshoots which grow at the base of the palm and which are
genetically identical to the parent. Wild date palms rarely produce a tall trunk
as the offshoots crowd the base of the palm and grow into a thicket, stunting
growth. The serried ranks of palms in the oasis are therefore very much a
man-made vista. Offshoots are cut from the base of the palm as they develop into
miniature palms. For the first 5-20 years of the palm's life the offshoots are
removed but a single growth is left at the base of the trunk to encourage more
offshoots to grow. If all the shoots are removed, the palm is inhibited from
producing any more. In traditional cultivation all the offshoots were removed
after about 20 years so that fruit production could be maximized. There are
palms of all ages in the oasis and some may be as old as 90 or 100 years. Old
palms are regularly removed as they become unstable, bear less fruit and are
difficult to maintain as all work has to be done at the head of the palm, up to
24 meters above ground level.
Worker climbing a palm to pollinate it
The sequence of seasonal cultivation starts in the spring,
(February/March) with the palms coming into flower and requiring pollination. An
average of ten flower buds, called spathes, develop on each palm
annually. They are individually pollinated by placing a few spikes from the male
spathe into the female flower and loosely binding it to ensure
pollen distribution. As the fruit bunches develop, the supporting
stalk elongates so that the fruit bunch will be pendant. They are often tied to
leaf stalks to brace them and prevent wind damage. Date production varies from
20 to 100 kilograms per palm per year depending on variety, water supply,
crowding and organization of cultivation. By the very end of May the dates are
at the khalal stage and are fully developed in size. As they
change color to yellow or red, the bisr stage, they become edible
with a crunchy texture and rather astringent taste. The dates continue to ripen
to the rutab stage, turning brown and softening. Tannins in the
fruit are turning to sucrose which will in turn invert to glucose and fructose.
As a result there is a balance between the astringent and sweet taste which
varies between the different date varieties. The dates are picked for marketing
fresh. Premium varieties like khalas have a delicious balance of
sweetness and astringency at the rutab stage. Subsequent
development is largely drying of the fruit to the tamr stage when
the sugar content acts as a preservative which allows the date to be kept in
excess of one year. This may take place on the palm or after picking by drying
in the sun. Most dates are for human consumption with any poor quality dates
being used for animal feed.
Other cultivation requirements during the year include the
trimming of old dead leaves and leaf bases which is usually done in two stages
and results in the very characteristic appearance of the trunk of the palm,
removal of the maturing offshoots and cultivation of the ground around the
palms. At the appropriate time of year all these operations can be observed in
At the tamr stage a typical date is 15-20%
water, 73-80% sugars, 2-6% fiber, 1-3% proteins and less than 0.4% fats.
Dates contain reasonable amounts of vitamins A, 81, 82 and
niacin and are a good source of potassium, calcium and iron. There are traces of
other nutrients but no significant amount of vitamin C.
Some of the named varieties of date grown in the Al Ain
oasis are naghal, khunaizi, khalas, jaberi,
fardh and hilali. These palms provide a long fruiting
season giving an extended availability of fresh fruit and also spreading the
work of cultivation, harvesting and processing of the date crop. There are many
more varieties in cultivation in Al Ain, perhaps as many as 100 named varieties
in Al Ain oasis.
As well as fruit, the date palm yields a number of other
useful products. The trunks of felled palms were used as construction timber.
The growing point of a felled palm yields a delicious vegetable but as it
involves destruction of the palm, is a rare treat. The fronds of the leaves were
plaited into bags, mats, food covers, baskets, fans and many other household
craft items. The leaf midribs were made into chicken coops and furniture. Whole
leaves were bound together into flexible matting called da'an
which was used in house construction and which is still popular as a fencing
material. The dried fibrous leaf sheath called leef which is
recovered as the leaf bases are trimmed, was used to make cordage and for
packaging material. The long fruit stalks yield a superior fiber with better
strength than leef; this was used to make the climbing straps,
called habool, used by the workers to ascend the palm trees. Date
stones were used as animal feed. Finally, practically all parts could be used as
fuel and the ash used as fertilizer.
In the past local rulers created revenue by imposing date
taxes and also falaj water rates. Falaj dues were used for the maintenance work
required to keep the water flowing. This tax was called naub. The
system was rationalized in the early 1950s in Al Ain. Everyone paid a flat rate of one rupee
for every three hours of water. The maintenance of the falaj is now the
responsibility of Al Ain Municipality who also control the distribution of water
through a dedicated aflaj section of their administration.
The date tax was generally one tenth of the crop for falaj watered crops and
one twentieth for gardens with water from wells. The crop was measured in
various shapes and sizes of container such as jirabs, ghosa
and gal'a. In Al Ain the jirab was 70-80 lbs, whilst
in the Liwa oasis to the west of Al Ain on the edge of the Rub al Khali it was
180 lbs. There was a threshold level called nisab below which tax
was not collected from a date garden owner. The nisab was set at
20 jirabs in Liwa in the 1950s. The threshold was therefore nearly
two tons in Liwa. Possibly this gives an idea of the subsistence level for
annual date supply to a large extended family. In the first decade of the last
century the Ruler of Abu Dhabi collected 5,000 jirabs of dates as
tax from the Dhawahir tribe in the whole of Al Ain and each jirab
was valued at one Maria Theresa dollar. This amounted to 190 tons of dates.
Taking into account production from small gardens below the tax threshold and
also gardens owned by the ruling family which were exempt, an annual production
of 2,000 to 3,000 tons of dates is estimated for Al Ain oasis. The Dhawahir were
also obliged to supply 3,000 Maria Theresa dollars worth of lucerne to feed the
ruler's horses kept in Al Ain. By the middle of the 1950s the tax on dates in Al
Ain was only yielding 1,200 jirabs per annum. Although other
factors were involved, this reflects the low point in the general economy of the
area at that time.
A Tour Through The Oasis
A number of specific locations are identified on the map.
At these points there are particularly interesting plants, structures and sights
to note although with the ongoing development of the oasis and seasonal changes,
these mayor may not be found. They are described to build up a picture of the
variety of plants, routines of date palm culture, date palm products,
structures, features, historic and cultural aspects of the oasis which combine
to make the Al Ain oasis such an important cultural
Oxalis corniculata plant
The points can be combined into a walk commencing at the
Al Ain Museum carpark. They are described in the order encountered on this walk
which is about 5 kilometers long.
Immediately after entering the oasis through the new gate,
there are several sidr trees on the north side of the path (1).
The sidr is a native tree with edible fruit called nabaj
or sho'ab, rounded leaves and many spines. The fruit is a medium
sized berry with a substantial stone in the centre. They are edible when green
but can be sour and astringent and are more palatable when they turn yellow or
red. The Latin name is Ziziphus spina-christi. It was thought that
this tree provided the crown of thorns worn by Jesus as the tree is native in
Near the parking area on the north side just inside the
entrance (2), the landscaping includes several large ceramic storage jars known
locally as kars. The jars were used allover this region to store
dates, grain and water.
A short side passage (3) on the north side of the main
path shows one of the options which was considered for the recent redevelopment.
It leads to three old steel double leaf gates which crowd round one of the main
water channel junctions. The walls are finished in a adobe colored cement render
to match the mud brick wall finish and the traditional steel gates were
retained. Traditions develop quickly in this country! Now take the first side
path to your left.
At the T-junction turn left and at the next corner there
is a small mosque which has not yet been redeveloped. At the time of writing
there was a gourd plant festooned over the wall. Where there was enough light
penetrating the palm canopy cultivation of vegetable crops was possible within
the oasis. At the next junction turn right to keep heading in a southerly
The first garden on the east side of the path (4) has an
old iron- studded wooden gate; a little rickety but still functional. These
wooden gates would not have lasted long, as termite infestation would have been
the main problem. The gate has a postern door in the left hand leaf. There is
one more old wooden gate in a side passage just south of this gate and one has
been recorded in use as a channel bridge. Only a few of these old gates remain
in the whole oasis. The route reaches one of the redeveloped pathways. Turn
right to join this and then immediately left back onto an undeveloped path.
The path widens at this point (5) which has enabled a
number of weeds to become established. Lantana is the most vigorous as a
low ground cover plant with pink flowers and black berries. It is potentially a
serious weed pest. There is a young sesban tree (Sesbania
sesban) with attractive pea-type yellow flowers which have a dark red
mottling on the reverse of the petals. It has long thin cylindrical pods which
persist on the plant. It is usually grown as a fodder plant and was probably
introduced for this purpose. It is now naturalized in Arabia. Another common
weed here and in the date gardens is prickly chaff flower (Achyranthes
aspera). It is low growing with a prominent terminal flower spike of
small purple flowers and beneath them the remaining spiny bracts which give the
spike a very rough feel. The Arabic name is mahowat and it has
several medicinal uses, including use of the whole spike as an expectorant!
Mango tree flower against date palm trunk
Reaching the next junction where you will
need to turn left and then right, there are extensive remains of mud brick
walling (6). The form of construction with open joints within the wall and an
external mud plaster coat is evident.
This occupation mound (7) is the largest example of
several in this general area of the oasis. An archaeological excavation would
probably give some hard information on the history and age of the oasis. The
grouping of these mounds near the fort might indicate an old village settlement
on the edge of the oasis which has subsequently been absorbed into the
The path soon joins the developed area and you need to
turn left at the next junction and carry straight on where a path joins from the
right. The path now turns several times. At the point where the path turns east
through ninety degrees (8), there is an open gate into a plot. Propped against
the wall on the left just inside the plot is a steel gate with the Emirati flag
depicted on it, indicating that it was made after 1971 when the Emirates were
founded. Next you reach the limit of current redevelopment and the path widens
out as it leaves the palm plantations.
On the north side of the path is a magnificent ghaf
tree (9), one of a small number of mature specimens in the oasis. Ghaf,
Prosopis cineraria, rarely gets the opportunity to grow without
man's interference, most frequently in the lopping of branches to provide fodder
and the grazing of lower branches by livestock to produce a very uniform trim.
The tree has light foliage which is usually pendant on thin branches. This
specimen looks as though it has been left to grow naturally.
At this point (10) we are at the edge of the oasis proper
and the route turns right to pass between a farm on the left and date gardens to
the right. The farm has been developed to grow field crops, as would have been
the custom in the past on the oasis fringes. In the past fodder, wheat, barley,
sorghum and vegetables were grown seasonally. If the winter rains were good or
there was a good supply of well water, these additional crops boosted the
family's resources and potentially gave a surplus for trade or barter.
The path drops down to Wadi Sarooj. At this point (11)
there are many specimens of Prosopis juliflora, an introduced
member of the mesquite family of the Americas. In many places it is considered
to be a weed pest and is blamed for hay fever and asthma attacks as it has
copious pollen. The pods are however browsed by livestock as they are highly
Soon after the point where steps lead down in to the wadi
bed (12), on the right hand side the Dawoodi falaj can be observed at a location
where access has been provided to the strong water flow. The walk now follows
the wadi as it narrows and deepens at a pinch point with high banks on each
side. There are many trees established in the wadi bed. Their taproots may be up
to 20 meters deep to reach groundwater supplies.
The wadi turns to run northwest and on the right bank (13)
there is a magnificent specimen of Acacia nilotica, thorny acacia.
It has attractive globular yellow flowers in the winter which are followed by
very characteristic pods with constrictions between the seed chambers. The tree
is not particularly common in the UAE. Apart from fodder for animals it yields a
high quality timber. There is a smaller specimen downstream and another mature
specimen near the mosque inside the western gate to the oasis.
After a group of samr trees (Acacia
tortilis) on the right side of the wadi, a steep path leads out of the
wadi back into the date plantations. At the T-junction turn left; the path
wanders round the edge of gardens where you are actually looking down on to the
palms due to the level differences.
Fig fruit that has dried on the tree
At a sharp left hand turn in the path (14) there is an extensive
thicket of the "toothbrush shrub", Salvadora persica, or
rak in Arabic. The mature stems or roots are cut and after peeling
off a centimeter of bark at the end, are worked into a fibrous brush which was
used to clean the teeth. Bundles of the cut stalks, called meswaq,
can still be bought in the market. The chemical constituents help to remove
tartar, stimulate the gums, provide an abrasive action and a protective coating.
Many parts of the plant were used in medicine and veterinary work and the leaves
were used as fodder. The flowers have a smell like coffee and the ripe dark red
fruits are edible with a very peppery taste.
The route now rejoins the
developed paths at a modern mosque and there is a good choice of paths to return
to the Archaeology Museum.
Continuing in a westerly direction, the Al
Nasseri Mosque is reached (15). This mosque has been restored in a traditional
style and gives a good impression of the character of the oasis buildings in the
past. Finally, to the north, almost in the centre of the oasis at an important
crossroads (16), there are modern refreshment facilities available for visitors
at a cafe and restaurant.
Map of Al Ain Oasis showing walking route
and points of interest
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Heard-Bey, Frauke, From Trucial States to United Arab
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for Plants in the UAE, Zodiac Publishing, Dubai, 2000
Miller, Anthony G & Miranda Morris, Plants of the Dhofar
- The Southern Region of Oman - Traditional, Economic and Medicinal Uses, Diwan of
the Royal Court, Sultanate of Oman, Muscat, 1988
Townsend C C and Evan Guest (editors), Flora of Iraq,
Ministry of Agriculture, Republic of Iraq, Baghdad, 1966 -1985
Zohary, Daniel and Maria Hopf, Domestication of Plants in
the Old World, Clarendon Press, Oxford, 1994