基于MSPA的綠色基礎設施網(wǎng)絡(luò )構建——以南京市為例

摘要：【目的】針對城市建設空間快速擴張、綠色空間逐漸喪失且破碎的問(wèn)題，探尋優(yōu)化城市綠色基礎設施網(wǎng)絡(luò )體系的有效方法，為市域尺度綠色基礎設施構建提供更為科學(xué)的借鑒與參考?！痉椒ā恳阅暇┦凶鳛檠芯繉ο?，運用形態(tài)學(xué)空間格局分析法（MSPA），在土地類(lèi)型劃分圖的基礎上，識別南京市現有綠色空間中核心區、邊緣、孤島、連接橋等重要景觀(guān)類(lèi)別，通過(guò)斑塊面積計算和連通性指數評價(jià)發(fā)掘具有生態(tài)潛力的綠色基礎設施節點(diǎn)，通過(guò)計算各網(wǎng)絡(luò )中心的最小成本路徑生成潛力廊道，最后結合現有核心區、潛力節點(diǎn)、現有廊道、潛在廊道構建未來(lái)南京市綠色基礎設施網(wǎng)絡(luò )體系?！窘Y果】構建優(yōu)化的南京市多層級綠色基礎設施網(wǎng)絡(luò )體系，形成南京市綠色空間發(fā)展結構?！窘Y論】MSPA法為城市綠色基礎設施構建提供較為客觀(guān)、科學(xué)的方法，為不同城市環(huán)境下的城市綠色基礎設施建設提供理論依據和實(shí)踐支撐。

關(guān)鍵詞：綠色基礎設施；要素識別；MSPA；網(wǎng)絡(luò )構建

Abstract:【Objective】Aiming at the problems of rapid expansion of urban construction space and the gradual loss and fragmentation of green space, an effective method for optimizing the UGI network system is explored to provide a more scientific city-scale reference for GI construction.【Method】Taking Nanjing as an example, using morphological spatial pattern analysis (MSPA) and land use map, identify important landscape types such as nodes, edges, islands, bridges, etc.. Use area calculation and connectivity index evaluation to explore potential GI nodes, generate potential corridors by calculating the minimum cost path of each nodes, and finally combine existing and potential nodes as well as corridors to build the future GI network system.【Result】Build an optimized multi-level GI network system and a green space development structure of Nanjing.【Conclusion】MSPA provides a more objective and scientific method for UGI construction, and provides theoretical basis and practical support for the UGI construction in different urban environments.

Keywords: green infrastructure; element recognition; MSPA; network construction