54 3 1999 5 A CTA GEO GRA PH ICA S IN ICA V o l. 54, N o. 3 M ay, 1999 Ξ (, 210008) :,,,, :, 50, H 1M ayer G1W eigend [1, 2 ], M ayer J1Kenyon [3 ], E1T aaffe T aaffe,, [4 ], [5 ], 80, Y1H ayu th, 1970 1988, ( ) [6 ] H ayu th, 90, [7, 8 ],,, T,,,,,, 1 111 Ξ (Suppo rted by N ational P lanning Comm ittee of Ch ina) : 1997212228; : 1998208213
234 54 24, :, ;,, 112 1949 1995 46, 1952 1957 1965 1970 1975 1980 1985 1995 8 1949, 1949 113, : 1 Ξ (1952 1995 ) Tab11 Gin i coeff ie ien ts for the Changj iang R iver port system, 1952 1995 1952 1957 1965 1970 01289 5 01390 0 01434 0 01475 5 1975 1980 1985 1995 01475 0 01528 0 01404 0 01434 5 Ξ 2 211 G = 015 n i= 1 gx i - y ig (121) n, x i i ; y i i, y i= 1gn G,, ; G = 0,, ( ), 1 46, ( 1), 1952 1995, 01289 5 01434 5, 1952, 24, 100, 10 100, 1992, 1 000, 65% 212,
3 : 235, [9 ], 1950 01516, 1952 01289 5, 46 213 1, 46, 1952 1980,, 01009, 1980, 1980 1985,, 01024 1 1985,, F ig11 T he grow ing p rocess of the spatial structure of Changjiang R iver po rt system 01004, 1995 (1952, 1980, 1995) 1965 1985, 214 80, 1980 1985,,, 80 3 311,,,, [10, 11 ] :,,, ( ),, ( ) ( ) ;,
236 54,,, 312 [12 ],, 1970,, 70,, 80,,,, 1970, 60% 70%,, 313 [13 ] 50 70,,, 1972, 1985 [14 ] 2,, 2 (1980), F ig12 L o renz Curve of techno logical conditions of the Changjiang R iver po rt system (1980) 314,,, [14 ],, 315 1978,, [15 ] 80,,, 14
3 : 237,, ;, 80,, [16 ] 4 411,,, 50 80 (01729) [17 ],,, ;,,,,, 412 1952 1995, 01004,, :,,,,,, 413, [18, 19 ], 41311, T,,,,,,,,
238 54,, ; ; ; 5 000,, 5 000, 10 000, 2 000 5000 41312,,,,, 10,,,, ( ) ( ) ;, 3 500, 4 000, 6 000,, 1 000 3 000 41313,,,,,, 3 9,, 600, 1 000, 2 000, (2000 ) 618%, (2010 ) 517% : ( ), 1995, (2000 ) 618%, (2010 ) 517% : ( ), 1995.
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240 54 ON THE SPAT IAL STRUCTURE OF CHANGJ IANG R IVER PORT SY STEM Cao Youhui (D ep artm ent of U rban and R esou rce S ciences, N anj ing U niversity, N anj ing 210008) Key words po rt system, spatial structure, regions along the Changjiang R iver, gini coefficient Abstract It has great sign ificance, bo th theo refically and p ractically, to study the change of the spatial structu re of po rt system. In the W est, Geographers in terested in th is p rob lem have focused on two aspects the competition of hinterlands o r fo relands among po rts and the degree of traffic concen tration in po rt system. Bu t scho lars at dom estic have no t study th is p rob lem from view of change of cargo flow up to now. T he m ain pu rpo se of th is paper is to study the dynam ic features, fo rm ation causes and change tendencies of the spatial structure of the Changjiang R iver po rt system. Based on annual cargo throughout of 24 p rincipal po rts on the Changjing R iver from 1952 to 1995, autho r calculates Gini coefficients of the po rt system in eight base years. Gini coeffient in 1952 as only 0. 209 5 that w as rather low, then there appeared an steady tendency to rise. In 1980, Gini coefficient reached its m axim um w hich w as 0. 528 0. But an evident drop took p lace at the early of 1980 s. A cco rding to above calculating results, autho r ho lds that there are four dynam ic features of spatial structure of the po rt system, (1) T he spatial structure of the po rt system has becom e mo re concentration from 1952 to 1995 by and large; (2) It is based on m uch deconcen trated po rt distribu tion s that the spatial structu re tends concen tration; ( 3) T here is obviou s difference fo r the change of spatial stractu re in 4 phases; ( 4 ) A n eviden t deconcentration p rocess took p lace at the early of 1980 s. A system atic analysis has been carried out on the fo rm ation causes of the change of the spatial structure of Changjiang R iver po rt system. T he paper ho lds that the fo llow ing facto rs have p rofound imp lications on its evo lution: econom ies of scale, uneven econom ic developm ent along the Changjiang R iver, the change of the p ro t system s techno logical condition s, the developm ent of transpo rt network, and the transfo rm ation of the nation s econom ic po licies. Compared w ith som e po rt system s in the W est, the Changjiang R iver po rt system is still in the p rim ary from ation stage. T he p resen t spatial state of the po rt system is unfavou rab le to elabo ration of the w ho le benefit itself. In the autho r s op inion, from now on the basic trend w ill be continued tow ard the concentration in the spatial structure but the develop ing velocity w ill be slow ed dow n. N anjing, W uhan and Chongqing w ill grow faster than the o ther po rts.