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Would Tamarisks help with reducing soil salinity?

 
Posts: 4
Location: Bethlehem, Pennsylvania
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I've read that tamarisks can absorb salt and have specialized glands for it, if managed properly can this trait be used to gradually lower soil salinity? Has anyone tried this before?
 
pollinator
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Location: Bendigo , Australia
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From; web site

Interesting Tamarisk (salt cedar) Facts:
-  grows in the form of tall shrub or small tree. It can reach 3 to 59 feet in height. Crown is composed of irregular, elongated, upwardly-oriented branches.
- Young trees are covered with smooth, reddish-brown bark. Old trees have furrowed, bluish-purple bark.
-  produces scale-like, miniature, green-grey leaves that are densely arranged on the branches. Leaves of tamarisk do not have petioles, they are attached to the branches via wide base.
  Leaves of tamarisk overlap each other.
  Even though tamarisk is deciduous plant, leaves can remain on the tree during the mild winter.
- produces small, white or pink flowers. They are arranged in dense clusters at the end of the branches, creating feathery appearance of the plant.
- blooms from March to September and produces large quantities of nectar which attracts bees, responsible for the pollination of flowers.
- is perennial plant which means that it can survive more than 2 years in the wild.

Fruit of tamarisk is capsule filled with numerous seed.;
- The capsule splits into three or five parts to release a seed which has tuft of hairs which facilitate dispersal by wind.
- up to 200,000 seeds are produced each year.
- it propagates via seed, cuttings or vegetatively via adventitious roots.
Some species of tamarisk, such as;
-  Tamarix mannifera release white substance (called manna) as an answer to insect bite. This substance is used as source of food for Bedouins in the wild.
- Tamarix articulata are rich source of purple tannins that are used for tanning of leather.
It is often cultivated as an;
-  ornamental plant
- to provide shelter and protection against wind in the open, windy areas.
- It has strong root system that can prevent erosion of the soil.
- It also can easily reach the water that is located on the great depths using its long taproot.
- It tolerates salt water, and it eliminates excess salt via leaves. Thanks to this feature, tamarisk can be used to mine salt.
- It is invasive plant that negatively affects growth of native plant species in the newly conquered habitats.
- It can easily absorb all available water from the ground and convert habitat into desert

Wood of tamarisk can be used for carpentry or as a firewood.

 
Kadin Roberts
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Location: Bethlehem, Pennsylvania
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Thank you for the answer, definitely has some nice benefits but I suppose it wouldn't work too well in the desert for removing salt since it drinks up so much water.
 
Posts: 152
Location: Southern Colorado, 6300', zone 6a, 16" precipitation
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Are you actually sure that tamarisk drinks up too much water? Compared to a cottonwood, a box elder, or bare ground? Where's the evidence? A field of tamarisks will conserve more water (through shading of the soil, wind protection and mulching) than a field of patchy grass or bare ground.

Tamarisks are allelopathic due to their deposition of salt on the ground around it, but they are extremely useful in salt basins and flats where nothing else will grow. Driving through the west along I-25 or I-10 about every 20 miles there is a low bare spot with salt crusting on the ground in overgrazed areas. Tamarisks would help restore these areas.

I can't remember where, but Geoff Lawton spoke of how Iran was restoring salt basins through using tamarisks to shade the ground and build an organic layer. They then followed that up with Russian Oliver and were able to make these areas productive. In the western US, they can be used in the same way in conjunction with Russian Olive, prickly pear, siberian elm, sagebrush, and four wing saltbush to bring life back to blasted areas.
 
John C Daley
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Location: Bendigo , Australia
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Skyler, my post lists the web site I drew those notes from.
I will follow up more references. http://vro.agriculture.vic.gov.au weeds_saltcedar
Its a Government report from Australia.
This site speaks about the invasion of the plant across parts of USA, damage to water sources, fauna habitat etc.
 
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I'm located within the Rio Grande valley of far West Texas. I'm specifically in southeast Hudspeth County.

Tamarisk is a major invasive species in this area. If you go down into the valley and the riverbed, Tamarisk has completely out-competed the native mesquite and local fauna. Up on my property , which is about 6 miles north of the river, I have small stands of tamarisk in my washes and a major canyon.

I don't mind it so much in the canyon because at least something is growing down there. The flash floods are so violent that I have a bank about 60 yards wide with only gravel. Nothing can withstand the force of the flooding, but the tamarisk does okay on the lower banks. My only complaint in that area is that the tamarisk thorns scratch every last bit of paint off my truck when I drive by.

Tamarisk is also growing in my washes. The flooding in the washes is not nearly as severe, which gives me a lot of growing opportunities and is the center of my project.

Tamarisk root structure goes as deep as mesquite. And whereas mesquite is allelopathic, the saltcedar poisons its competitors by concentrating salts from well under the subsurface in its leaf litter.

At least with mesquite, the the surrounding toxins eventually dissipate and break down. Once you have concentrated salts in your soil, you're talking about a very long-term project to get rid of those. I really don't see an argument for tamarisk unless it's the only thing that will grow. The salt pan restoration idea is a good example.

My soil is pretty good other than high pH and no nitrogen. For me, at least, it's a pest.

The short summary is that tamarisk may make your soil salinity worse.
 
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