Desertification is one of import ant environmental problem in the world.In this paper, the Minqin oasis were selected as an example to discuss the oasis desertification assessment indicators.According to our re-search result, the sandy desertificat ion always occurs in the edges of oasis periphery which distance is 1-2km.Its obvious symbol is the reactivition of fixation and semifix ation dune on which grows the shrubs.In this study, the surface invest igat ion assessment indicators were proposed.The assessment indicators include 5 aspects.First is the developing status of shrub sand dune which include soilcrust, dune density, dune height, percent of sand dune occupied the total area, the percent of the areas which were uncovered by plants on sand dune.The second are the soil physical, chemistry and biological characteristics.The third is the vegetation coverage, composition and regeneration.The forth is the landforms shape and its developing status.The last one is the human factors which include social and economic factors.
JIA Baoquan
,
CI Longjun
,
GAO Zhihai
,
DING Guodong
,
ZHANG Kebin
. The Desertification of oasis and ITS Assessment Indicators[J]. Arid Zone Research, 2001
, 18(2)
: 19
-24
.
DOI: 10.13866/j.azr.2001.02.004
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