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Study on Ancient Chu Town Urban Green Space Evolution and Ecological and Environmental Benefits

機譯：古楚鎮(zhèn)城市綠地演變與生態(tài)環(huán)境效益研究

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In order to deeply analyse the law of urban green space evolution, this paper discusses the change of urban ecological environment effect brought about by green space evolution and its interaction and mechanism. Based on 2007-2018, four remote sensing images of GUI area, the application of remote sensing and GIS spatial information technology, the basic data and sample plot survey, realized based on green space classification diagram. The landscape index, gradient analysis, spatial dynamic analysis methods, such as statistics, quantitative analysis of the urban green space landscape spatial structure evolution and its law of development, with the urban development of green space change of gradient explicit study can be a deeper understanding of the process of landscape pattern, provides the basis for the research of function. The experimental results show that from 2,031 square kilometres in 2007 to 1,364 square kilometres in 2018, the proportion of farmland in urban suburbs decreased by more than 50%. Urban green space has a rising trend in the core urban areas, but changes in the fringe urban areas and suburban areas are complex. With the advancement of urbanization, the total vegetation coverage has decreased by more than 50%, in which the area with high and full vegetation coverage levels has decreased significantly, while the area with no, low and medium vegetation coverage levels has increased.
機譯：為了深入分析城市綠色空間演化規(guī)律，探討了綠色空間演化帶來的城市生態(tài)環(huán)境效應的變化及其相互作用和機理。在2007-2018年的基礎上，基于綠色空間分類圖，實現(xiàn)了GUI區(qū)域的四幅遙感影像，遙感和GIS空間信息技術的應用，基礎數據和樣地測量。對景觀指數，梯度分析，空間動態(tài)分析等方法進行統(tǒng)計，定量分析，對城市綠地景觀空間結構演變及其發(fā)展規(guī)律，隨著城市發(fā)展對綠地梯度變化的顯性研究可以得到更深刻的認識。對景觀格局過程的研究，為功能研究提供依據。實驗結果表明，從2007年的2,031平方公里到2018年的1,364平方公里，城市郊區(qū)耕地所占比例下降了50％以上。城市綠地在核心城市地區(qū)呈上升趨勢，但邊緣城市地區(qū)和郊區(qū)的變化非常復雜。隨著城市化進程的推進，植被總覆蓋率下降了50％以上，其中高，全植被覆蓋率區(qū)域明顯下降，無，中，低植被覆蓋率區(qū)域增大。

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