Journal of Geographical Sciences ›› 2018, Vol. 28 ›› Issue (1): 109-123.doi: 10.1007/s11442-018-1462-4

• Research Articles • Previous Articles     Next Articles

Examining urban land-cover characteristics and ecological regulation during the construction of Xiong’an New District, Hebei Province, China

Wenhui KUANG1(), Tianrong YANG1,2, Fengqin YAN2,3   

  1. 1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China
    3. Northeast Institute of Geography and Agroecology, CAS, Changchun 130102, China
  • Received:2017-04-26 Accepted:2017-06-21 Online:2018-01-10 Published:2018-05-10
  • About author:

    Author: Kuang Wenhui, PhD and Associate Professor, specialized in Land Use/Cover Change (LUCC) and urban ecology. E-mail: kuangwh@igsnrr.ac.cn

  • Supported by:
    Key Project of Beijing Natural Science Foundation, No.8171004

Abstract:

Development of Xiong'an New District (XND) is integral to the implementation of the Beijing-Tianjin-Hebei (BTH) Integration Initiative. It is intended to ease the non-capital functions of Beijing, optimize regional spatial patterns, and enhance ecosystem services and living environment in this urban agglomeration. Applying multi-stage remote sensing (RS) images, land use/cover change (LUCC) data, ecosystem services assessment data, and high-precision urban land-cover information, we reveal the regional land-cover characteristics of this new district as well as across the planned area of the entire BTH urban agglomeration. Corresponding ecological protection and management strategies are also proposed. Results indicated that built-up areas were rapidly expanding, leading to a continuous impervious surface at high density. Urban and impervious surface areas (ISAs) grew at rates 1.27 and 1.43 times higher than that in the 2000s, respectively, seriously affecting about 15% area of the sub-basins. Construction of XND mainly encompasses Xiongxian, Rongcheng, and Anxin counties, areas which predominantly comprise farmland, townships and rural settlements, water, and wetland ecosystems. The development and construction of XND should ease the non-capital functions of Beijing, as well as moderately control population and industrial growth. Thus, this development should be included within the national ‘sponge city’ construction pilot area in early planning stages, and reference should be made to international low-impact development modes in order to strengthen urban green infrastructural construction. Early stage planning based on the existing characteristics of the underlying surface should consider the construction of green ecological patches and ecological corridors between XND and the cities of Baoding, Beijing, and Tianjin. The proportion of impervious surfaces should not exceed 60%, while that of the core area should not exceed 70%. The development of XND needs to initiate the concept of ‘planning a city according to water resource amount’ and incorporate rainwater collection and recycling.

Key words: Xiong’an New District;, urban land use, urban impervious surface, Beijing-Tianjin-Hebei urban agglomeration, ecological protection strategies