JOURNAL OF NATURAL RESOURCES ›› 2019, Vol. 34 ›› Issue (1): 26-39.doi: 10.31497/zrzyxb.20190103

• Orginal Article • Previous Articles     Next Articles

Spatio-temporal pattern of national wetland parks

Ting ZHOU(), An-yi NIU, Jiao-jiao MA, Song-jun XU()   

  1. School of Geography, South China Normal University, Guangzhou 510631, China
  • Received:2018-06-04 Revised:2018-09-03 Online:2019-01-20 Published:2019-01-20

Abstract:

As one of the protected areas, the wetland park has played an important role in protecting the wetland habitat. On one hand, the wetland park can be an important infrastructure for ecosystem research on exploring the contradiction between the vulnerability of ecologically fragile areas and the maintenance of original habitat of wetland, which shows both theoretic significance and practical value for systematic research on wetland parks. On the other hand, spatial analysis of the wetland park is an important basis for systematic construction of wetland parks. It can not only visualize the current spatial structure of wetland parks, but also reflect the wetland resources utilization and wetland management efficiency, which can provide the scientific basis for the spatial construction of wetland parks. Therefore, based on ArcGIS visualization technology, the spatial pattern characteristics of National Wetland Park (NWP) was analyzed from the perspective of time and space and its location relationships with the cities was explored by using Standard Deviation Ellipse, Point Pattern Analysis, Statistical Analysis and other methods. Results show the following four points: (1) China's NWP has gone through three stages, the starting stage, the rapid development stage and the standard development stage from time series. The amount of NWP is unevenly distributed in different provinces, and the correlation between the development of quality and quantity is not synchronized. Till now, Official National Wetland Park (ONWP) is at the beginning stage of standard development. (2) From multiple scale, an aggregated distribution pattern is emerging, supplemented by random distribution for ONWP. And the overall distribution pattern tends to be in a northeast-southwest direction, forming two high-density hot spots and three medium-density sub-hot spots. (3) From urban scale, the distribution of ONWP presents a large spatial heterogeneity and has the characteristics of being partial to the urban planning areas or being close to the urban planning areas. (4) At last, the distribution of ONWP presents the dominant characteristics of population pattern, which coincides with the guiding significance of Heihe-Tengchong Line.

Key words: wetland park, spatio-temporal pattern, Standard Deviational Ellipse, Point Pattern Analysis, Statistical Analysis