JOURNAL OF NATURAL RESOURCES ›› 2017, Vol. 32 ›› Issue (8): 1374-1384.doi: 10.11849/zrzyxb.20160753

• Resource Evaluation • Previous Articles     Next Articles

Evaluation on Island Resources and Environment Carrying Capacity under the Background of Urbanization

CHI Yuan1, SHI Hong-hua1, SUN Jing-kuan2, GUO Zhen1, MA De-ming1   

  1. 1. The First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China;
    2. Shandong Provincial Key Laboratory of Eco-Environmental Science for Yellow River Delta, Binzhou University, Binzhou 256603, China
  • Received:2016-07-14 Revised:2016-09-10 Online:2017-08-20 Published:2017-08-20
  • Supported by:
    Public Science and Technology Research Funds Projects of Ocean of China, No. 201505012 and 201305009Basic Scientific Fund for National Public Research Institutes of China, No. 2015G13 and 2014G18.

Abstract: Island ecosystem is vulnerable due to the special position, limited area and isolated space of islands, and the conservation and exploitation of islands are both essential to the construction of strong marine country. Urbanization has profound impact on island ecosystem, which threatened biodiversity and ecosystem productivity, and changed the landscape pattern, thus the evaluation on island resources and environment carrying capacity is of great significance for controlling human activities and maintaining ecological balance. Miaodao Archipelago, typical islands in North China which locate in Changdao County of Shandong Province, was used as the study area. The evaluation model of island resources and environment carrying capacity which integrated the exploitation intensity and ecological status was established. The methods of remote sensing (RS), geographic information system (GIS) and field investigation were adopted, and the resources and environment carrying capacities at archipelago scale, island scale and grid scale were analyzed, respectively. The results indicated: at archipelago scale, the resources and environment carrying capacity was in status of critical overloading; at island scale, Nanchangshan Island was in status of mild overloading, whereas Beichangshan Island, Miao Island and Daqin Island were in status of critical overloading, and the other six islands were in status of no overloading, which suggested that different modes of conservation and exploitation should be implemented in different islands; at grid scale, the island resources and environment carrying capacity had significant spatial heterogeneity with no overloading zones (41.7%), critical overloading zones (30.0%), mild overloading zones (15.9%), moderate overloading zones (8.1%) and severe overloading zones (4.3%) in descending order, where no overloading zones distributed in the non-urban construction areas, critical overloading zones located in suburb areas and parts of non-urban construction areas, and overloading zones concentrated in urban construction areas. Urban construction inevitably decreased the island ecological function. Construction scale control, spatial allocation optimization, environmental impact mitigation, and ecological restoration and construction were important measures to enhance the island resources and environment carrying capacity. The evaluation model comprehensively reflected the features and spatial heterogeneity of island resources and environment carrying capacity, thus provided a basis for allocations of island conservation and exploitation, and it can be widely applied to the evaluation of island resources and environment carrying capacity in different regions and different types of islands.

Key words: island ecosystem, island resources and environment carrying capacity, Miaodao Archipelago, urbanization

CLC Number: 

  • X321