Eco-environmental Effects of Land Use Change in Rapid Urbanization Area-A Case Study at Central District of Hangzhou City

HUANG Zhonghua; DU Xuejun

doi:10.13961/j.cnki.stbctb.2015.06.041

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Eco-environmental Effects of Land Use Change in Rapid Urbanization Area-A Case Study at Central District of Hangzhou City

- Eco-environmental Effects of Land Use Change in Rapid Urbanization Area-A Case Study at Central District of Hangzhou City
- Bulletin of Soiland Water Conservation Vol. 35, Issue 6, Pages: 223-229(2015)
- 作者机构：
  
  1. 浙江工业大学经贸管理学院,浙江,杭州,310023
  2. 浙江省哲学社会科学重点研究基地技术创新与企业国际化研究中心,浙江,杭州,310023
  3. 浙江科技学院经济管理学院,浙江,杭州,310023
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2015.06.041
  CLC：
- Published：2015
- 稿件说明：
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HUANG Zhonghua, DU Xuejun. Eco-environmental Effects of Land Use Change in Rapid Urbanization Area-A Case Study at Central District of Hangzhou City[J]. Bulletin of Soiland Water Conservation, 2015, 35(6): 223-229.
DOI：

HUANG Zhonghua, DU Xuejun. Eco-environmental Effects of Land Use Change in Rapid Urbanization Area-A Case Study at Central District of Hangzhou City[J]. Bulletin of Soiland Water Conservation, 2015, 35(6): 223-229. DOI： 10.13961/j.cnki.stbctb.2015.06.041.

摘要

[目的

]

评价和分析杭州中心城区1995-2014年土地利用变化的生态环境综合效应

为土地利用管理和城市生态环境治理提供依据。[方法

]

基于杭州市中心城区1995

2000

2005

2010和2014年5期TM影像数据

获取不同时段土地利用变化数据

并利用生态系统价值评估、碳排放核算和景观格局指数等分析方法。[结果

]

近20 a来

杭州市生态系统服务总价值从1995年的32.43亿元下降至2014年的23.96亿元

共减少26%

占同期GDP比重从5.86%下降至0.56%;土地利用净碳排放从1995年的4.26×10

增加至2014年的1.51×10

碳吸收从7.22×10

t下降至6.49×10

2014年碳排放的社会成本已高达145亿元;生态服务低价值区主要以中部为中心向周围蔓延

土地利用生态景观分析结果显示破碎化程度降低

连通性提高趋势

但多样性锐减。[结论

]

研究区内林地和水体面积减少

建设用地增加是生态系统服务总价值减少的主要原因。建设用地碳排放急剧增加和林地的碳吸收锐减是土地利用净碳排放增加的主要原因。研究区土地利用变化引起的生态景观格局变化明显

生态服务价值空间分布不均。

Abstract

[Objective] The comprehensive effects of land use change on eco-environment during 1995-2014 were assessed to provide a support for land use management and urban eco-environment governance.[Methods] Based on the TM image data of central district of Hangzhou City in 1995

2000

2005

2010 and 2014

methods of ecosystem service value

carbon emission and landscape pattern assessment were used.[Results] The ecosystem service value in Hangzhou City was 3.24 billion Yuan in 1995 and 2.40 billion Yuan in 2014

which decreased by 26%. The ratio of ecosystem service value to GDP decreased from 8% in 1995 to 0.5% in 2014. The carbon emission increased from 4.26×106 t in 1995 to 1.51×107 t in 2014

and the carbon sink decreased from 7.22×105 t in 1995 to 6.49×105 t in 2014. The social cost of carbon emission was about 14.5 billion Yuan in 2014.Areas with low ecosystem service value spread its coverage from city center to periphery. Landscape pattern analysis showed that

in the past 20 years

land use had tendencies of decreasing fragmentation

increasing connectivity and decreasing diversify.[Conclusion] In the study area

the sharp decrease of ecosystem service value can be attributed to the decrease of forest land and water body

and the increase of construction land. The increase of carbon emission linked with land use change was a consequence of increased carbon emitted from construction land and decreased sink of forest land. Land use transformation caused the change of landscape pattern remarkably

and the spatial distribution of ecosystem service value was uneven.

关键词

Keywords

references

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