【正文】 ........................................................................................................73（四）城市性質(zhì)表述....................................................................................................................................73 六、可持續(xù)人居環(huán)境營(yíng)造....................................................75（一）XXX 城市人居環(huán)境問(wèn)題..................................................................................................................75 現(xiàn)狀問(wèn)題..............................................................................................................................................75 原因分析..............................................................................................................................................76 改善途徑..............................................................................................................................................77（二）城市景觀(guān)生態(tài)結(jié)構(gòu)構(gòu)建....................................................................................................................78 基質(zhì)......................................................................................................................................................78 斑塊......................................................................................................................................................78 廊道......................................................................................................................................................79 節(jié)點(diǎn)......................................................................................................................................................79 網(wǎng)絡(luò)......................................................................................................................................................79（三）城市開(kāi)敞空間系統(tǒng)營(yíng)造....................................................................................................................80 區(qū)域性開(kāi)敞空間..................................................................................................................................80 城市內(nèi)部開(kāi)敞空間..............................................................................................................................81（四）城市用地適宜性評(píng)價(jià)........................................................................................................................82 評(píng)價(jià)范圍..............................................................................................................................................82 評(píng)價(jià)方法和指標(biāo)..................................................................................................................................82—— XXX 城市空間發(fā)展戰(zhàn)略規(guī)劃———IV— 用地適宜性評(píng)價(jià)..................................................................................................................................83（五）城市用地發(fā)展方向選擇....................................................................................................................83 可能的城市用地方向..........................................................................................................................83 城市用地方向條件分析......................................................................................................................83 城市用地發(fā)展方向選擇......................................................................................................................85 七、理想城市空間結(jié)構(gòu)......................................................88（一）歷次城市空間結(jié)構(gòu)規(guī)劃回顧 ............................................................................................................88 單中心棋盤(pán)式......................................................................................................................................88 花園城市結(jié)構(gòu)......................................................................................................................................88 雙中心城市結(jié)構(gòu)..................................................................................................................................89 一軸一核方格網(wǎng)式城市結(jié)構(gòu)..............................................................................................................89 一軸一核三環(huán)十中心布局模式..........................................................................................................89 “ 1+4” 分散組團(tuán)結(jié)構(gòu)...........................................................................................................................90（二）大城市空間增長(zhǎng)模式選擇................................................................................................................92 城市空間拓展的新要素......................................................................................................................92 大城市空間擴(kuò)展規(guī)律..........................................................................................................................93（三）理想城市及其構(gòu)造要素....................................................................................................................96 理想之城..............................................................................................................................................96 構(gòu)造要素..............................................................................................................................................97（四）城市結(jié)構(gòu)轉(zhuǎn)型與再造........................................................................................................................99 城市結(jié)構(gòu)轉(zhuǎn)型......................................................................................................................................99 城市結(jié)構(gòu)再造....................................................................................................................................100 城市結(jié)構(gòu)重組....................................................................................................................................101（五）城市空間拓展與重構(gòu)......................................................................................................................102 大都市............................