西江中下游地區土利用變化的生態價值影響及經濟分析──以梧州市、肇 慶市及江門為例

Ecological Value Impact and Economic Analysis of Land Use Change in the Middle and Lower Reaches of Xijiang River-Take Wuzhou, Zhaoqing and Jiangmen as Examples

生態系統服務的維繫是生態文明建設的重要一環，本研究以西江中下游地區梧州、肇慶、江門等最具代表的三城市為對象，分析土地利用變化帶來的生態系統服務價值量變化及經濟的影響，研究目的以土地利用/覆被變化及其對生態系統服務價值的影響，為西江中下游地區土地高效利用、生態環境保護與管理提供參考。研究發現，耕地及水域向建設用地的轉變是生態環境惡化的主要原因，耕地向林地以及草地向林地的轉變是生態環境改善的主要原因，為此提出相應的可持續發展建議。

The maintenance of ecosystem services is an important part of the construction of ecological civilization. This study takes the three most representative cities in the middle and lower reaches of Xijiang River, such as Wuzhou, Zhaoqing and Jiangmen, as the object to analyze the change of ecosystem service value and economic impact brought by land use change.The purpose of this study is to provide reference for land use and cover change (LUCC) and its impact on ecosystem services values (ESV) in the middle and lower reaches of Xijiang River.It is found that the transformation from cultivated land to construction land is the main reason for the deterioration of ecological environment, and the transformation from cultivatedland to forest land and grassland to forest land is the main reason for the improvement of ecological environment. Therefore, the corresponding suggestions for sustainable development are put forward.