Geoscience Reference
In-Depth Information
8
Integrated management of
small watershed with
planting
Loess areas
Labor demanding
Relatively expensive
4 Effectiveness
Can cause blow out
More effort to
maintain
4 Durability
Long life
2 Maintenance
High social value as it provides cash to
local people
9
Combating soil secondary
salinization with
vegetation
Mis-managed irrigation areas
Labor demanding
Costly
2 Effectiveness
Few species
More effort to
maintain
4 Durability
Lower reach of river
Improving soil
2 Maintenance
10
Combating industrial-mining
induced desertification
with vegetation
Mining area
Labor demanding
More effort to
maintain
2 Effectiveness
High consumption of water
Costly
4 Durability
Good ecological & economic benefits
2 Maintenance
Engineering methods
11
Clay sand barriers
2/3 of leeward side of mobile
dunes from bottom
Must have clay
Costly
4 Effectiveness
Labor demanding
4 Durability
Preventing rain water from infiltration
(crust on surface)
4 Maintenance
Long life
12
Straw checkerboard
2/3 of leeward side of mobile
dunes from bottom
Must have local supply of straw
Cheap
4 Effectiveness
Labor demanding
Low labor cost
because of low
opportunity cost
of rural labor
2 Durability
short life (2-4 year)
3 Maintenance
Engineering measures combining with biological methods
13
Straw or clay sand barriers
combining with
vegetation
2/3 of leeward side of mobile
dunes from bottom
Must have local supply
Relatively cheap
5 Effectiveness
Labor demanding
Easy to maintenance
5 Durability
4 Maintenance
(continued)
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