Restoring China's Degraded Environment
-
The Role of Natural Vegetation
![]() Bare hills may need preliminary cover or herbs and then shrubs before trees can be introduced |
|
![]() Forests protect water = life and prosperity |
![]() Mixed forest on poor rocky soils |
![]() Some tree-crops such as tea or rubber show very high rates of soil loss ![]() Good grass cover can be very effective in water and soil conservation |
|
![]() Land scars account for a high proportion of local soil loss |
![]() Good mix of broadleaf and conifers, with multi-age structure |
|
![]() Farms on steep hills. Notice erosion gulleys on nearest field and old terraces lost under erosion |
|
| Programme | Do | Do Not | Economic potential | Investment required |
| Strengthening the protection of Forests and grasslands | Close forests from fire, cutting,
browsing by domestic animals, and hunting Maintain natural species mix, age-staggered forests and high ground cover Preserve natural agents of pollination and seed dispersal and wildlife that control pests Develop representative protected areas Develop fire protection plans |
Convert natural grasslands
to forest |
Employment of forest guards |
Tourism development Training of local people for
tourism and handicrafts work |
| Restoring forest on degraded and bare hills |
Zoning into 'ecological' versus
'sustainable production' forests, but ecological function needs should
have precedence |
*Plant single-aged plantations
of monocultures or exotic species Clean undergrowth under plantations Plant fire-prone plantations *Plant species out of their natural zones (e.g. conifers in broadleaf zone) (*In forests developed primarily for sustainable timber production, the guidelines may be relaxed.) |
¡¤Develop sustainable forestry
plots for timber, bamboo, mushrooms and medicinal plants Employment of guards and foresters and nurserymen Employment of fire protection staff Some tourism potential Some potential for animal husbandry e.g. pheasants |
Costs of reforestation, aftercare
and fire protection Tourism development Sustainable forest industries investments |
| Emergency treatment of bare land scars | Augment physical engineering
treatment with establishment of tree and especially ground vegetation Plant with turf and bamboo clumps, not just seed or seedlings |
Use unnecessary and potential weed-forming exotic species | Employment of treatment staff and nurseries | Costs for nurseries development and wages of associated work crews |
| Returning steep farmland to tree and grass cover | Ensure that most forests are
'ecological' rather than 'economic' Ecological forests should follow guidelines as for forest restoration Study regional vegetation and natural succession sequences in planning reforestation Economic tree crops should be diversified Long duration compensation paid to farmers Promote terracing on steep farms |
Economic tree crops with poor
ground cover Free-ranging browsing animals Convertion of slopes with good terracing or low natural soil loss Plant whole regions under one dominant economic species |
Production of fruits, timber, bamboo, mushrooms, medicinal plants and penned animals | ¡¤Compensation programmes for
farmers abandoning farmlands Training for farmers to adapt to new industries Invest in construction of terracing |
| Alternative employment | Develop small-scale hydropower
plants Develop new local industries in townships to use cheap hydropower and absorb labour |
Concentrate on large-scale projects which divert too much water and electricity from where it is urgently needed | New employment opportunities Cheap hydropower Subsidized local energy to reduce pressure on forests for fuel |
Investment costs of hydropower
development Road improvement to isolated townships Investment in new industries |