LI Yun-zhe,SUN Tao,ZHANG Chen,et al.Health Evaluation of Nanli Lake of Hainan Province Based on PSR Model[J].HEILONGJIANG AGRICULTURAL SCIENCES,2018,(02):79-83.[doi:10.11942/j.issn1002-2767.2018.02.0079]
基于PSR模型的海南南丽湖湿地健康评价
- Title:
- Health Evaluation of Nanli Lake of Hainan Province Based on PSR Model
- Keywords:
- wetland; PSR model; health assessment ; Nanli Lake
- 文献标志码:
- A
- 摘要:
- 为更好地保护和发展海南重要的南丽湖湿地资源,采用压力-状态-响应模型,选取能充分反映南丽湖湿地生态安全的20项指标,运用层次分析法确定各指标的权重,计算南丽湖各指标健康指数分值,对海南南丽湖湿地进行健康评价。结果表明:南丽湖湿地的生态安全综合指数得分为0.764,湿地目前处于良好的健康状态。当前南丽湖处于正在建设时期,资金投入量充足,湿地保护程度日益加深;人均GDP、周围人口素质和旅游活动强度指标得分低于0.6,说明湿地周围居民的经济和文化水平偏低,游客人数偏多,同时伴随有上升的趋势,人类活动对南丽湖湿地健康影响较大,不利因素较多。水体DO和金属元素含量两项指标得分低于0.8,说明水体质量受到其它污染地区的轻微影响,如不加强监管、治理,水质有继续恶化的趋势,植被覆盖率指标得分低于0.8,说明南丽湖植被覆盖率较低,影响了南丽湖湿地的生物多样性。
- Abstract:
- In order to better protection and development of important wetland resources of Nanli Lake of Hainan.This paper adapts the Pressure-State-Response(PSR) model,selects 20 indexes which can fully reflect the ecological security of Nanli Lake wetland,to evaluate the health status of Hainan Nanli Lake Wetland.Based on this evaluation index system,the scores of health index of 20 indexes were calculated.The results showed that the ecological security index score Nanli Lake wetland was 0.764,wetland was currently in good health.The current Nanli Lake wetland was in the construction period,the amount of capital investment was sufficient,the wetland protection degree was deepened; the per capita GDP,around the quality of the population and tourism activity intensity index below 0.6 points,indicating the wetland surrounding residents economic and cultural level was low,the number of visitors more,with a rising trend,human activities had great influence on our the wetland health,many unfavorable factors.The water DO and the content of metal elements of two indicators below 0.8 points,indicating the water quality were slightly affected by the other polluted areas,such as the strengthening of supervision and management,water quality continues to deteriorate trend,the vegetation coverage index below 0.8 points,indicating nanly lake vegetation coverage rate was low,the effect of Nanli Lake wetland biodiversity.
参考文献/References:
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备注/Memo
收稿日期:2017-12-06基金项目:海南省自然科学基金面上资助项目(20164161)。第一作者简介:李云哲(1997-),男,河南省陕县人,在读学士,从事湿地生态学研究。E-mail: 869714417@qq.com。