城市土地利用结构和形态的定量描述:从信息熵到分数维

doi:10.11821/yj2001020003

鍦扮悊鐮旂┒ 鈥衡�� 2001, Vol. 20 鈥衡�� Issue (2): 146-152.DOI: 10.11821/yj2001020003

鈥� 璁烘枃鈥� 涓婁竴绡� 涓嬩竴绡�

鍩庡競鍦熷湴鍒╃敤缁撴瀯鍜屽舰鎬佺殑瀹氶噺鎻忚堪:浠庝俊鎭喌鍒板垎鏁扮淮

闄堝溅鍏�¹, 鍒樼户鐢�²

1. 淇￠槼甯堣寖瀛﹂櫌鍦扮悊绯�, 娌冲崡淇￠槼 464000;
2. 涓滃寳甯堣寖澶у鍦扮悊绯�, 鍚夋灄闀挎槬 130024

鏀剁鏃ユ湡:2000-10-10 淇洖鏃ユ湡:2001-03-29 鍑虹増鏃ユ湡:2001-04-15 鍙戝竷鏃ユ湡:2001-04-15
浣滆�呯畝浠�:闄堝溅鍏�(1965-),鐢�,娌冲崡缃楀北浜�,鍓暀鎺堛�傜幇涓哄寳浜ぇ瀛﹀煄甯備笌鐜瀛︾郴鍦ㄨ鍗氬＋,涓昏浠庝簨鍦扮悊鍒嗗舰涓庣┖闂村鏉傛�х爺绌跺伐浣溿�傚凡鍙戣〃瀛︽湳璁烘枃70浣欑瘒銆�
鍩洪噾璧勫姪:
鍥藉鑷劧绉戝鍩洪噾璧勫姪椤圭洰(40071035);娌冲崡鑷劧绉戝鍩洪噾璧勫姪椤圭洰(984071000)

An index of equilibrium of urban land-use structure and information dimension of urban form

CHEN Yan guang¹, LIU Ji sheng²

1. Department of Geography, Xinyang Teachers College, Xinyang 464000, China;
2. Department of Geography, Northeast Normal University, Changchun 130024, China

Received:2000-10-10 Revised:2001-03-29 Online:2001-04-15 Published:2001-04-15

鎽樿/Abstract

鎽樿锛�

鍩轰簬淇℃伅璁烘�濇兂鎻愬嚭鍙嶆槧鍩庡競鍦熷湴鍒╃敤缁撴瀯鐗瑰緛鐨勫潎琛″害姒傚康:鍋囧畾灏嗗煄鍖洪潰绉负A鐨勫煄甯傜敤鍦板垎涓篘涓亴鑳界被,鍚勭被鍒殑闈㈢Н涓篈i(i=1,2,…,N),涓旀湁∑iAi=A,瀹氫箟Pi=Ai/A,鍒欏彲寰楀埌鍦熷湴鍒╃敤缁撴瀯鐨勪俊鎭喌H=-∑iPilogPi,鎹鍙瀯閫犲煄甯傚湡鍦板埄鐢ㄧ殑鍧囪　搴﹀叕寮廕=H/logN(0≤J≤1,鐩稿簲鍦版湁闆嗕腑搴=1-J)銆傝繘鑰屽�熷姪缃戞牸娉曞畾涔夊煄甯傚湡鍦板埄鐢ㄧ殑绌洪棿鐔�,寤鸿钘夋娴嬬畻鍩庡競鍦熷湴褰㈡�佺殑淇℃伅缁�

鍏抽敭璇�: 鍩庡競鍦熷湴鍒╃敤, 鍩庡競绌洪棿褰㈡��, 淇℃伅鐔�, 鍒嗙淮

Abstract:

To characterize the equilibrium extent of structure of urban land use, an index formula based on information entropy is advanced as follows: J=-∑NiP i log P i/ log N In the formula,P i=A i/A=A i/∑NiA i,where A is the area of urbanized area of a city, A i is the land area of a certain function type,and N is the number of land function types Correspondingly, the difference of an index is defined as I=1-J,which can be used to reflect the inequality of urban land use When information entropy is generalized to describe the spatial morphology of urban land use by means of making ‘nets’ on maps,information dimension as one of the fractal dimensions can be computed to qualify the spatial patterns of urban land use .

Key words: urban land use, urban form, information entropy, fractal dimension

PACS:

TU984

闄堝溅鍏�, 鍒樼户鐢�. 鍩庡競鍦熷湴鍒╃敤缁撴瀯鍜屽舰鎬佺殑瀹氶噺鎻忚堪:浠庝俊鎭喌鍒板垎鏁扮淮[J]. 鍦扮悊鐮旂┒, 2001, 20(2): 146-152.

CHEN Yan guang, LIU Ji sheng. An index of equilibrium of urban land-use structure and information dimension of urban form[J]. GEOGRAPHICAL RESEARCH, 2001, 20(2): 146-152.

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鍩庡競鍦熷湴鍒╃敤缁撴瀯鍜屽舰鎬佺殑瀹氶噺鎻忚堪:浠庝俊鎭喌鍒板垎鏁扮淮

An index of equilibrium of urban land-use structure and information dimension of urban form

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