地理科学

地理科学 ›› 2013, Vol. 33 ›› Issue (1): 75-82.doi: 10.13249/j.cnki.sgs.2013.01.75

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基于高程约束的区域LUCC及其生态效应研究——以福州市为例

李名勇1,2(), 晏路明3, 王丽丽1(), 林志垒3   

  1. 1.中国科学院地理科学与资源研究所, 北京 100101
    2.中国科学院研究生院,北京 100049
    3.福建师范大学地理科学学院, 福建 福州 350007
  • 收稿日期:2012-02-28 修回日期:2012-05-10 出版日期:2013-01-20 发布日期:2013-01-20
  • 作者简介:

    作者简介：李名勇（1984-）,男,江西抚州人,博士研究生,主要从事土地利用/覆被变化、全球环境变化与树轮气候研究。E-mail: limy.11b@igsnrr.ac.cn;limingyong000000@126.com

  • 基金资助:
    国家重点基础研究发展计划（2009CB421307）、国家社会科学基金项目（03BTJ004）、福建省自然科学基金项目（2011J01265）资助

Regional LUCC and Its Ecological Effect Based on Elevation Constraint: A Case Study of Fuzhou City

Ming-yong LI1,2(), Lu-ming YAN3, Li-li WANG1(), Zhi-lei LIN3   

  1. 1. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
    2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China
    3.School of Geographical Sciences, Fujian Normal University, Fuzhou, Fujian 350007, China
  • Received:2012-02-28 Revised:2012-05-10 Online:2013-01-20 Published:2013-01-20

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摘要：

以福州市5区7县（不包括平潭县）为研究区,以1994~2006年间3期遥感影像解译分类获得的土地利用/覆被数据为基础,并构建个性化的生态系统服务价值与生态效应测算模型,对研究区高程约束下的土地利用/覆被变化（LUCC）及其生态效应进行分析。研究结果表明：① 耕地、建设用地和未利用地的变化集中于第1级,园地的变化集中于第4、5级,水域和草地的变化集中于第3、2级,林地的变化集中于第1、3、4级。② 各高程等级的生态系统服务价值量均增加。各高程等级LUCC的生态效应指数与模数大致随高程等级增加而减小。

关键词: LUCC, 高程约束, 生态服务价值, 生态效应, 福州市

Abstract:

Land use and land cover change (LUCC) has become a critical field of land change science (LCS) in the study of global environmental change. Based on the remotely sensed data of land use change with a spatial resolution of 30 m × 30 m in the five sub-regions and seven counties of Fuzhou City in the years of 1994, 2001 and 2006, a improved models for evaluating ecosystem services value and ecological effect of LUCC was designed by introducing the value coefficient of food yield for regional farmland per unit area and the payment coefficient of regional ecosystem services in order to analyze the characteristics of LUCC and its ecological effect under the constraint of elevations during 1994-2006, which were divided into five levels (-0.4-50 m, 50-100 m, 100-200 m, 200-500 m and 500-+∞ m) ascending respectively. The results show that: 1) The distribution of different land use and cover types was quite distinct along elevation. Forest and garden land mainly distributed on the fourth and fifth level; cultivated, built-up and unused land on the first level; grassland on the third, fourth and fifth level; and water body on the first and second level. 2) The areas of all land use and cover types showed rapid variation which appeared different characteristics under the altitude constraint in the period 1994-2006. Arable, unused and built-up area had changed sharply on the first level. The first two types decreased whereas the last one increased. The area of garden land increased significantly on the fourth and fifth level. Water body and grassland variation mainly distributed on the third and second level. The woodland change concentrated on the first, third and fourth level. 3) The ecosystem services value had increased at all elevations in 1994-2006, which appeared some inconsistency in different periods. The increasing amount of ecosystem services value from large to small along elevation levels were the fifth, fourth, first ,third and second levels respectively in the period 1994-2001 while those were the fifth, fourth, third, first and second levels in 2001-2006. The indexes of ecological effects had decreased with the rise of elevation levels in 1994-2006, Compared with 1994-2001, the indexes of ecological effects had significantly reduced in the period of 2001-2006. The modulus of ecological effects had also reduced with the go-up of elevation levels, which had increased at the first, second and third levels but decreased at the fourth, fifth levels in the latter phase compared with the previous period.

Key words: LUCC, elevation constraint, ecosystem services value, ecological effect, Fuzhou

中图分类号: 

  • F301.24