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题名: 城镇化发展对呼包鄂地区生态系统服务功能的影响
作者: 王莉雁; 肖燚; 江凌; 饶恩明; 欧阳志云; 郑华
刊名: 生态学报
出版日期: 2016
卷号: 36, 期号:19, 页码:6031-6039
关键词: 城镇化 ; 生态系统服务功能 ; 呼包鄂地区
其他题名: The influence of urbanization on ecosystem services in the Hohhot-Baotou- Ordos region
中文摘要: 城镇化是社会经济发展和现代文明的重要标志。城镇化的发展对区域生态系统产生巨大的影响,进而影响了区域生态系统为人类提供生态系统服务的能力。以呼包鄂地区为研究对象,选取防风固沙功能、土壤保持功能,运用冗余分析方法(RDA)探讨快速城镇化对生态系统服务功能的影响机制。结果表明:(1)20002010年,呼包鄂地区城镇化发展迅速,城镇人口、常住人口城镇化率、国内生产总值、建设用地面积分别增加83.39%、35.52%、1150.00%、51.91%;(2)防风固沙功能、土壤保持功能10年呈增强趋势,分别增加20.17%和4.39%;(3)RDA分析结果表明,温度、降雨天数、风速、常住人口城镇化率、建设用地指数是呼包鄂地区防风固沙功能变化的主要影响因素,5个因子的共同解释信息量达68.3%;其中常住人口城镇化率和建设用地指数的解释信息量较高,分别为21.5%、34.2%;(4)常住人口城镇化率与防风固沙功能、土壤保持功能呈显著正相关(P<0.05),建设用地指数与防风固沙功能呈极显著负相关(P<0.01)。因此,有序推进农村人口转移,提高常住人口城市化率;集约利用土地资源,抵制建设用地的无序扩张是实现呼包鄂地区生态系统与城镇可持续发展的重要途径。
部门归属: 环境化学与生态毒理学国家重点实验室
英文摘要: Urbanization is an important facet of economic development,and one of the most significant economic and social phenomena of the contemporary era. However, it is considered to have detrimental impacts on regional ecological systems, which could affect the ability of ecosystems to provide human services. Hohhot-Baotou-Ordos, is located in the midwest of Inner Mongolia,which is known as golden triangle region of Inner Mongolia. This area is experiencing rapid urbanization, and is becoming the most important economic and urbanized belt of Inner Mongolia, and also one of the richest regions in China. Furthermore, this region is famous for sand-fixing and soil conservation. Thus, it is vital to understand how urbanization change is influencing ecosystem services in the Hohhot-Baotou-Ordos region. In this paper, we analyze the changes in urbanization and ecosystem services (sand-fixing and soil conservation) that occurred between 2000 and 2010 in the Hohhot-Baotou-Ordos region. We then used redundancy analysis (RDA) to reveal the relationships between urbanization and ecosystem services in the Hohhot-Baotou-Ordos region. The results showed the following. (1) Urbanization progressed sharply from 2000 to 2010 in the Hohhot-Baotou-Ordos region. The urban population, the resident population urbanization rate, gross domestic product (GDP),and the index of construction land increased by 83.39%,35.52%, 1150.00%, and 51.91%, respectively. (2) There was an obvious increase in sand-fixing and soil conservation (20.17% and 4.39%, respectively). (3) Correlation analysis showed that the changes in sand-fixing and soil conservation were positively correlated (P<0.05) with the change in permanent residents urbanization rate, and were negatively correlated (P<0.01) with the change in the index of construction land. Furthermore, an RDA two-dimensional ordination diagram indicated that temperature, precipitation days,wind speed, the urbanization rate of permanent residents,and the index of construction land were the main influence factors of sand-fixing, which could significantly explain 68.3% of the data. The explanation of the urbanization rate of permanent residents and the index of construction land were higher, 21.5% and 34.2% respectively. On the basis of the results,certain management strategies are recommended for sustainable development of city and ecosystem. Firstly, we should promote a greater migration of the rural population into urban areas,properly adjust the number of villages and small towns and increase the number of large towns. Secondly, the government should make more reasonable plans for urban development,prohibit the disorderly expansion of construction land,and increase the regional ecological support to towns. Thirdly, we should use land resources in an economical and intensive way and expand urban ecological space by converting city land and other polluted land into natural landscapes,with the purpose of realizing green urbanization and finally to realize the win-win situation of having urbanization and ecological system.
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内容类型: 期刊论文
URI标识: http://ir.rcees.ac.cn/handle/311016/36592
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