鳥取大学乾燥地研究センター　乾燥地農業領域

Introduction

Currently, desertification is accelerating at an alarming rate. The assessment of the extent of desertification is of prime importance for designing proper regimes for its control. The extent of desertification is categorized as light, moderate, strong, and extreme, in relation to 15 ecological parameters and their combination with measures of vegetation degradation, wind and water erosion and soil salinization1.
It may be possible to use environmentally sensitive plants, or the ones that have unique requirements, as indicators that a certain area suffers some degree of desertification.

The aim of this database is to identify the plant species as indicators for assessment of the extent of desertification.

DATABASE

Continent	Country	Site	Degrees of desertification	Representative plant
Asia	China	Horgin sandy lands	Light	Acer trimcatum
				Arundinella hirta
				Bassia dasyphylla
				Cleistogenes squarrosa
				Crataegus pinnatifida
				Ephedra sinica
				Lespedeza bicolor
				Medicago falcate
				Potentilla anserina
				Prunus humilis
				P.sibirica
				Quercus mongolica
				Rhamnus dahurica
				Stipa bungeana
				Ulmus macrocarpa
				U.pumila
			Moderate	Artemisia arenaria
				A. ordosica
				A. sieversiana
				Filifolium sibiracum
				Lespedeza hedysaroides
				olygonum divaricatum
				Populus simonii
				Pugionium cornutum
				Salsola collina
				Thymus mongolicus
			Severe	Chenopodium acuminatum
				Corispermum declinatum
				Ferula bungeana
				Salix fravida
				Xanthinm sibiricum
			Extreme	Agriophyllum squarrosum
		Mu Us sandy lands	Light	A. frigida
				Astragalus melilotoides
				Caragana korshinskii
				Hedysarum mongolicum
				Lespedeza davurica
				Prunus pumila
				Rhamnus erythroxylon
				Sabina vulgaris
				Stipa bungeana
			Moderate	Hedysarum leave
			Severe	C. stenophylla
				Ceratoides latens
				Corispermum declinatum
				Ferula bungeana
				O. ramosissima
			Extreme	Agriophyllum squarrosum
Africa	Sudan	Darfur area	Light and moderate	Andropogon gayanus
				Aristida plumosa
				Citrullus colocynthis
				Cymbopogon proximus
				Cyperus rotumdus
				Eleusine indica
				Hibiscus cannbinus
				Leptadenia lancifolia
				Maerua pseudopetalosa
				Ocimum basilicum
				Panicum turgidum
				Rottboellia exallata
				Sesamum alatum
			Severe	Abutilon sp.
				Cassia absus
				C. mimosoide
				C. obtusifolia
				Ocimum americanum
				Solanum incanum
			Extreme	Cissus quadrangularis
				Ipomea carnea
				Ricinus communis
	Tunisia	Southern Tunisia	Light	Celsia ballii
				Centaurea acaulis
				Didesmus bipinnatus
				Eragrostis papposa
				Eryngium glomeratum
				Globularia alypum
				H. ruficomum
				H. virgatum
				Olea europaea
				Oryzopsis coerulescens
				O. miliacea
				Pinus halepensis
				Pistacia atlantica
				P. lentiscus
				Reseda duriaeana
				Rosmarinus officinalis
			Moderate	Ajuga iva
				Coris monspeliensis
				Genista microcephala
				Herniaria fontanesii
				Lavandula multifida
				Ruta chalepensis
				Salvia aegyptiaca
				Stipagrostis ciliata
				S.obtusa
				Thymus capitatus
			Severe	Astragalus armatus
				Atractylis serratuloides
				Echiochilon fruticosum
				Hammada schmittianum
				Helianthemum lippii
				Koeleria pubescens
				Launaea resedifolia
				Linaria aegyptiaca
				Lygeum spartum
				Marrubium deserti
				Nolletia chrysocomoides
				Pituranthos chloranthus
				Rhanterium suaveolens
			Extreme	Cleome arabica
				Hammada scoparia
				Peganum harmala
Thapsia garganica

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