[1]CHEN Long,LIU Chunlan,PEI Sha,et al.Evaluation of the Effect Terrain Gradient of Ecosystem Services in the Transitional Zone of Beijing Bay[J].Research of Soil and Water Conservation,2020,27(04):247-255.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 04
Page number:
247-255
Column:
目次
Public date:
2020-06-20
- Title:
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Evaluation of the Effect Terrain Gradient of Ecosystem Services in the Transitional Zone of Beijing Bay
- Author(s):
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CHEN Long, LIU Chunlan, PEI Sha, LIU Xiaona, NING Yangcui
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(National Urban Environmental Pollution Control Engineering Research Center, Beijing Municipal Research Institute of Environment Protection, Beijing 100037, China)
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- Keywords:
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gradient effect; altitude; slope; locally weighted regression; change point
- CLC:
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X171.1; X826
- DOI:
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- Abstract:
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In order to understand the variation of ecosystem services in the transition zone and promote local sustainable development, the topographic gradient effects of major ecosystem services in the Beijing Bay were revealed at 1 km×1 km pixel level by using the methods of locally weighted regression and change point identification, followed by the identification of change points of ecosystem services in varying altitudes and slopes. The results show that:(1)except the recreational service, other ecosystem services typically show terrain gradient effects to some extent, displaying consistent changes along the increase of altitude and slope;(2)in terms of altitude gradient, no key change point was detected in the services of recreation and soil quality regulation; however, a key change point for other ecosystem services was seen at an altitude of about 300 m; the trend changes can be classified into five categories;(3)in terms of slope gradient, no key change point was observed in the services of water purification, soil conservation, recreation and soil quality regulation; however, the critical change points for the reversal of some services were seen at the slopes with 10° and 15°, respectively; the trend changes can be divided into six categories. Based on the above findings, land use structure in the adjacent area of key change points is recommended to make some adjustment to improve the ecosystem quality and maximize the benefits of ecosystem services.