| CHEN Zhenghua,PAN Delu,BAI Yan. 2010. Study of coastal water zone ecosystem health in Zhejiang Province based on remote sensing data and GIS. Acta Oceanologica Sinica, 29(5):27－34 |
| Study of coastal water zone ecosystem health in Zhejiang Province based on remote sensing data and GIS |
| Study of coastal water zone ecosystem health in Zhejiang Province based on remote sensing data and GIS |
| Received:August 29, 2009 Revised:May 07, 2010 |
| DOI：10.1007/s13131-010-0060-9 |
| Key words:coastal water zone ecosystem health indicator remote sensing GIS |
| 中文关键词: coastal water zone ecosystem health indicator remote sensing GIS |
| 基金项目:The National Natural Science Foundation of China under contract No. 41001271. |
| Author Name | Affiliation | E-mail | | CHEN Zhenghua | School of the Environment, Gangxi University, Nanning 530004, China
State Environmental Protection Key Laboratory of Satellite Remote Sensing, Ministry of Environmental Protection, Institute of Remote Sensing Applications, Chinese Academy of Sciences, Beijing 100101, China | chen.zhenghua@163.com | | PAN Delu | State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | | | BAI Yan | State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China | |
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| Abstract: |
| The coastal ecosystem health assessment is a field of increasing importance. In this paper, a preliminary assessment of ecosystem health in Zhejiang coastal water zone was made, mainly based on remote sensing data and GIS technique. Its spatial and quantitative evaluation was facilitated by the progress of remote sensing and GIS technique development. Firstly, human activities, hydrology and ecosystem problems in the study area were discussed and analyzed. Secondly, from 4 aspects of human stress, physical, chemical and biological responses to anthropogenic activities and natural stress, several indicators such as water transparency (Secchi Disk Depth, SDD), suspended substance concentration, dissolved inorganic nitrogen, active phosphate, chlorophyll, harmful algae bloom, as well as distribution of sewage, sea lanes and port were employed. Thirdly, the Analytic Hierarchical Process was used for indicator weight calculation, and the ecosystem health criteria were established according to the integrative analysis of national water quality criteria, similar coastal ecosystem health research in other places or data inherent properties. The results indicated that from 2005 to 2007 the coastal water ecosystem health value in Zhejiang Province was unhealthy and needs ecological restoration by human intervention. |
| 中文摘要: |
| The coastal ecosystem health assessment is a field of increasing importance. In this paper, a preliminary assessment of ecosystem health in Zhejiang coastal water zone was made, mainly based on remote sensing data and GIS technique. Its spatial and quantitative evaluation was facilitated by the progress of remote sensing and GIS technique development. Firstly, human activities, hydrology and ecosystem problems in the study area were discussed and analyzed. Secondly, from 4 aspects of human stress, physical, chemical and biological responses to anthropogenic activities and natural stress, several indicators such as water transparency (Secchi Disk Depth, SDD), suspended substance concentration, dissolved inorganic nitrogen, active phosphate, chlorophyll, harmful algae bloom, as well as distribution of sewage, sea lanes and port were employed. Thirdly, the Analytic Hierarchical Process was used for indicator weight calculation, and the ecosystem health criteria were established according to the integrative analysis of national water quality criteria, similar coastal ecosystem health research in other places or data inherent properties. The results indicated that from 2005 to 2007 the coastal water ecosystem health value in Zhejiang Province was unhealthy and needs ecological restoration by human intervention. |
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