XIAO Hongke,LI Hongzhong,WANG Li,et al.Changes of Land Use and Ecosystem Service Value in Guangdong-Hong Kong-Macao Greater Bay Area—A Case Study of Guangzhou-Foshan-Zhaoqing[J].Research of Soil and Water Conservation,2020,27(01):290-297.
粤港澳大湾区土地利用及生态系统服务价值的变化——以广佛肇为例
- Title:
- Changes of Land Use and Ecosystem Service Value in Guangdong-Hong Kong-Macao Greater Bay Area—A Case Study of Guangzhou-Foshan-Zhaoqing
- 文章编号:
- 1005-3409(2020)01-0290-08
- Keywords:
- land use change; ecosystem services value; sensitivity index; Guangdong-Hong Kong-Macao Greater Bay Area; Guangzhou-Foshan-Zhaoqing
- 分类号:
- F301.2; X171.1
- 文献标志码:
- A
- 摘要:
- 以广州、佛山、肇庆三市整体为研究对象,基于研究区1990年、2000年、2010年、2015年遥感影像解译数据,借助于模型分析法研究了广佛肇近25年来的土地利用变化特征; 采用生态系统服务价值系数法,并结合研究区的实际情况定量估算了研究区1990—2015年不同土地利用类型的生态系统服务价值,并对其变化特征进行了分析。结果表明:(1)1990—2015年,林地和耕地面积持续减少,人工表面用地面积逐渐增加,草地先减少后增加,湿地先增加后减少,其他用地变化相对复杂。人工表面的动态度最大,其次是其他用地。耕地转出的面积最多,人工表面转入的面积最多;(2)研究区生态系统服务价值总量呈现出先增加后逐年减少的趋势,25年间共减少了3.59亿元。林地和湿地的生态服务价值之和在总的生态服务价值中占据主导地位。耕地面积的持续下降,使其保持土壤的服务价值下降最明显;(3)各地类的敏感性系数均小于1,说明研究区生态系统服务价值对其生态服务价值系数缺乏弹性,结果可信。
- Abstract:
- Based on the interpretation data of remote sensing images of 1990, 2000, 2010 and 2015, we studied the characteristics of land use changes in Guangzhou-Foshan-Zhaoqing in the past 25 years by using the model analysis method. The ecosystem service value of different land use types in the study area from 1990 to 2015 were quantitatively estimated by using the ecosystem service value coefficient method and combining with the actual situation of study area, and its variation characteristics were also analyzed. The results showed that:(1)from 1990 to 2015, the areas of forestland and cultivated land continued to decrease, while artificial surface land increased gradually, the grassland decreased at first and then increased, while the wetland increased at first and then decreased, and the area of other land changed relatively complicated; the artificial surface had the highest degree of dynamics, followed by other land; the area of cultivated land transferred out was the most, and the area of the transferred artificial surface was the most;(2)the total value of ecosystem services in the study area showed a decreasing trend of firstly and then the decreasing trend year by year, with a total reduction of 359 million yuan in 25 years; the sum of the ecological service value of forestland and wetland dominated the total ecological service value; the continuous decline in the area of cultivated land made it the most obvious decline in the value of maintaining soil;(3)the sensitivity coefficient of each class was less than 1, showing that the value of ecosystem service in the study area lacked flexibility in its service value index, and the results were credible.
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备注/Memo
收稿日期:2019-02-27 修回日期:2019-03-18
资助项目:中国科学院战略性先导科技专项(A类)资助(XDA19030301);国家重点研发计划(2016YFC0500201-07);国家自然科学基金(41771403);深圳市科技计划基础研究(JCYJ20170818155853672);河南省科技攻关项目(192102310025);河南省哲学社会科学规划项目(2017BTY007);河南省高等学校重点科研项目支持计划(18B890001);河南理工大学年度项目(SKND2018-05);河南理工大学博士基金(SKB2016-10)
第一作者:肖红克(1994—),男,河南平顶山人,硕士研究生,研究方向为3S集成与应用。E-mail:3040292390@qq.com
通信作者:李洪忠(1982—),男,山东济南人,博士后,副研究员,主要研究方向为雷达遥感与生态环境遥感监测。E-mail:hz.li@siat.ac.cn