B J Irwin,S J Ventura,B K Slater.Fuzzy and isodata clas-sification of landform elements from digital terrain data inPleasant Valley,Wisconsin.Geoderma,1997,(77):137~154.
Hengl T,Rossiter D G.Supervised landform classificationto enhance and replace photo-interpretation in semi-de-tailed soil survey.Soil Science Society of America Journal,2003,(67):1810~1822.
[4]
Argialas Demetre,Tzotsos Angelos.Geomorphological fea-ture extraction from a digital elevation model through fuzzyknowledge-based classification.In:Remote Sensing forEnvironmental Monitoring,GIS Applications,and GeologyII,2003,516~527.
[5]
I L Fonseca.The impact of data normalisation on unsuper-vised continuous classification of landforms.Geoscienceand Remote Sensing Symposium,2003.IGARSS’03.Pro-ceedings.2003 IEEE International.2003,(6):3426~3428.
[6]
J Wood.The geomorphological characterization of digitalelevation models.Ph.D.Thesis,1996.
[7]
中国地貌图编辑委员会.中国地貌纲要.北京：中国地图出版社,1993.
[8]
苏时雨,李钜章.地貌制图.北京：测绘出版社,1999.
[9]
P A Burrough,P F M.van Gaans,R A MacMillan.High-resolution landform classification using fuzzy k-means.Fuzzy Sets and Systems,2000,(113):37~52.
[10]
R A MacMillan,R Keith Jones,David H.McNabb.Defin-ing a hierarchy of spatial entities for environmental analy-sis and modeling using digital elevation models(DEMs).Computers,Environment and Urban Systems.2004,(28):175~200.
[11]
R A MacMillan,W W Pettapiece,S C Nolan et al.Ageneric procedure for automatically segmenting landformsinto landform elements using DEMs,heuristic rules andfuzzy logic.Fuzzy Sets and Systems.2000,(113):81~109.
[12]
D J Pennock,D W Anderson,E DeJong.Landscapechanges in indicators of soil quality due to ultivation inSaskatchewan,Canada.Geoderma,1994,(64):1~19.
[13]
D J Pennock,B J Zebarth,E DeJong.Landform classifica-tion and soil distribution in hummocky terrain,Saskatchewan,Canada.Geoderma,1987,(40):297~315.
[14]
Philip T Giles,Steven E Franklin.An automated approachto the classification of the slope units using digital data.Geomorphology,1998,(21)∶251~264.
[15]
李钜章.中国地貌基本形态划分的探讨.地理研究,1987,6(2)：32~39.
[16]
A B McBratney,I O A Odeh.Application of fuzzy sets insoil science:fuzzy logic,fuzzy measurements and fuzzy de-cisions.In:De Gruijter J J,McBratney A B,McSweeney K(eds.).Fuzzy Sets in Soil Science.Geoderma,1997,(77):85~113.
[17]
Ayodele Oluwatomi Adediran,Issaak Parcharidis,MaurizioPoscolieri et al.Computer-assisted discrimination of mor-phological units on north-central Crete(Greece)by apply-ing multivariate statistics to local relief gradients.Geomor-phology,2004,(58):357~370.
[18]
Andrea Bolongaro-Crevenna,Vicente Torres-Rodriguez,Valentino Sorani et al.Geomorphometric analysis for char-acterizing landforms in Morelos State,Mexico.Geomor-phology,2005,(67):407~422.
[19]
Peter A.Burrough,John P.Wilson,Pauline F.M.vanGaans et al.Fuzzy k-means classification of topo-climaticdata as an aid to forest mapping in the Great YellowstoneArea,USA.Landscape Ecology,2001,(16):523~546.
[20]
G Ch Miliaresis,D P Argialas.Quantitative representationof mountain objects extracted from the global digital ele-vation model(GTOPO30).Int.J.Remote Sensing,2002,23(5):949~964.
[21]
Daniel G.Brown,David P.Lusch,Kenneth A Duda.Su-pervised classification of types of glaciated landscapes us-ing digital elevation data.Geomorphology,1998,(21)∶233~250.
[22]
Jochen Schmidt,Allan Hewitt.Fuzzy land element classifi-cation from DTMs based on geometry and terrain position.Geoderma,2004,(121)∶243~256.
