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China Tropical Lands Research
Degraded Lands of China: Problems and Opportunities
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Once forest-covered lands that are now degraded (Click on image to enlarge)

Degraded vegetative cover consisting mostly of grasses, on the Pat Sing Leng range in the eastern New Territories of Hong Kong.  The grass cover is typical of areas subjected to frequent fires.* A degraded, deeply weathered and eroded granite region near Castle Peak, Hong Kong, covered predominantly with grasses and shrubs.*
Residual granite boulders covering weathered granite on Tai A Chau, Soko Islands, Hong Kong.  Native vegetation has been degraded to a cover of grasses and shrubs.* Degraded vegetation covering the uplands at Ngong Ping, Lantau Island.*
Numerous landslides in deeply weathered rock with a degraded vegetative cover of and shrubs on the southern flank of Lantau Peak, Lantau Island, Hong Kong.* Extensive areas of grass- and shrub-covered degraded hill lands on Double Island, northeastern New Territories, Hong Kong.

Tropical weathering effects on rocks and man-made structures

Cores of fresh rock in jointed, highly weathered volcanic rock at Kau Sai Chau, eastern New Territories, Hong Kong.* This St. Paul Church wall in Macau wall is composed of blocks of granite.  Exposure of the upper part of the wall to an annual rainfall of 2020 mm (79.5 in.) since its construction in 1602 produced development of core stones from fresh rock.  (Photo by W.E. Parham)
* Except where noted, photos are published with the permission of the Head of the Geotechnical Engineering Office and the Director of Civil Engineering, Hong Kong SAR Government.
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