Spatial distribution patterns of wetland plants in relation to environmental gradient in the Honghe National Nature Reserve, Northeast China

Auteur(s) et Affiliation(s)

ZHOU, D.

Key Lab. of wetland Ecology and Environment, Northeast Inst. of Geography and Agroecology, CAS, Changchun, Chine

Inst. of Water Resources and Environment, Jilin Univ., Changchun, Chine

College of Resources, Environment and GIS, Capital Normal Univ., Beijing, Chine

LUAN, Z.

Key Lab. of wetland Ecology and Environment, Northeast Inst. of Geography and Agroecology, CAS, Changchun, Chine

GUO, X.

College of Resources, Environment and GIS, Capital Normal Univ., Beijing, Chine

LOU, Y.

Key Lab. of wetland Ecology and Environment, Northeast Inst. of Geography and Agroecology, CAS, Changchun, Chine

Description :
In the Honghe National Nature Reserve (HNNR), biophysical parameters’ values of wetland plants were obtained by field sampling methods, and wetland mapping at the community scale was completed using remote sensing techniques. Digital delineation of the surface water system, hydrological zoning and wetness index were produced by spatial analysis methods in Geographic Information System. An ecological ordination method and 2 clustering methods were used to quantify the relationship between the spatial distribution patterns of wetland plants and the corresponding environmental gradients. The results indicate how 4 ecotypes of wetland plants spatially transit from forest swamp, shrub wetland and meadow into marsh wetland with increasing wetness index and water table. And they also show how wetland spatial distribution patterns are controlled by an environmental gradient of wetness.

Type de document :
Article de périodique

Source :
Journal of geographical sciences. Acta geographica sinica, issn : 1009-637X, 2012, vol. 22, n°. 1, p. 57-70, nombre de pages : 14, Références bibliographiques : 41 ref.

Date :
2012

Editeur :
Pays édition : Chine

Langue :
Anglais