[1]LUO Zunlan,ZHAO Zhiping,SUN Guang,et al.Assessment of Wetland Ecosystem Health in Songhua River Basin[J].Research of Soil and Water Conservation,2015,22(01):105-109,114.
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Assessment of Wetland Ecosystem Health in Songhua River Basin
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 01
Page number:
105-109,114
Column:
Public date:
2015-02-28
- Title:
- Assessment of Wetland Ecosystem Health in Songhua River Basin
- CLC:
- X826
- DOI:
- -
- Abstract:
- In order to master the wetland ecosystem health in Songhua River Basin, we built index system to assessment wetland ecosystem health based on the Pressure-State-Response (PSR) model. The index system includes ten indexes which were annual precipitation, moisture index, population density, GDP per area, land-road distance, the maximum of NDVI, NPP, soil erosion intensity, the land-use and area of national nature reserve. Then, we used the weighted sum method to evaluate the index of the ecosystem health in Songhua River basin, and analyzed its health condition. The results showed that 62.62% of the wetland area in Songhua River basin was at the healthy level and 37.38% of the area was at the morbid level. From the aspect of spatial distribution characteristics, the healthy level wetland distributed widely, the morbid level wetland distributed mostly in plain area where industrial and agricultural production were more developed, population WAS denser, wetness was higher and vegetation coverage was lower. From the aspect of administrative division, 66.67% of cities’ wetland were at the less healthy level, 16.67% of cities’ wetland were at the morbid level or health level. We advised to take some protection and restoration actions with respect to wetland health in this area.
- References:
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