Geoscience Reference
In-Depth Information
Tabl e 3. 2
Suitable plant species for different sandy land types
Land type
Suitable species
1
Sandy land (flat)
Populus euphratica, Populus alba var pyramidalis, Populus
gansuensis, Reaumuria soongorica, Elaeagnus angustifolia,
Caragana korshinskii, Hedysarum scoparium, Haloxylon
ammodendron, Calligonum
spp
, Tamarix
spp
, Artemisia
arenaria, Zygophyllum xanthoxylum
and
Atraphaxis bracteatea
2
Sand dunes
Haloxylon Ammodendron, Tamarix ramosisima, Hedysarum
scoparium, Caragana korshinskii, Calligonum arborescens,
C. caputmedusae
and
C. mongolicum
3
Arid area
Haloxylon Ammodendron, Hedysarum scoparium, Caragana
korshinskii
4
Semi arid area
Salix matsudana, Populus canadensis, P.simonii, P.nigra
var.italica, P. alba var.pyramidalis
and
P.nigra var.thevestina
3
Land Preparation and Planting
3.1
Natural Conditions in Desert Area
Strong wind, dry climate, rare rainfall events and poor soil are the natural conditions
in sandy lands affected by wind and the landform in desert area is rather complex.
The site conditions in different sand landforms and in different parts of sand dunes
are quite different, which will affect sand fixation and afforestation. The preparation
for planting on such areas depends on natural conditions and afforestation season.
3.2
Transplanting
There are several aspects that would be useful for ensuring successful transplanting
of seedlings in sandy land. These are:
•
Seedling quality (vigor, disease free)
•
Seedling protection (from wind abrasion, rodent and insect attack)
•
Preparation of planting hole.
•
Planting distance (spacing).
•
Rehydration of seedlings before planting;
•
Planting (depth, soil compaction)
•
Direct seeding
This is widely used on flat terrain and here it is important to adhere to the
recommended sowing rates (Table
3.2
). Seed quality (purity and viability) is
important. Some seeds benefit from pre-sowing treatment to break dormancy or
increase seed permeability. These pre-treatments are species-specific.
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