哈尔滨市土地利用与生态系统服务价值演变研究

Study on the Evolution of Land Use and Ecosystem Service Value in Harbin

本文通过修正哈尔滨市单位面积生态系统服务价值系数表,得到哈尔滨市不同土地类型的生态系统服务价值,将生态系统服务价值以格网为研究单元作为地表覆被环境的指标,对哈尔滨市2000~2015年生态系统服务价值时空分布格局进行分析,结果表明:(1)土地利用变化方面,从2000~2015年,耕地、草地、居民用地增加;林地、水域和未利用地减少;(2)2000~2015年的整个研究期间,总ESV的变化约为14.58亿元。15年来,哈尔滨市生态系统服务价值总体呈现减少的趋势,其中在2000~2005年呈现增长趋势,2005~2015年哈尔滨市生态系统服务价值呈现减少的趋势,主要是由林地和水域面积减少造成的,其中哈尔滨市生态系统服务价值的最主要成分是由林地构成的,其次生态系统服务价值由大到小为水域、耕地和草地。

In this paper,the ecosystem service value of different land types in Harbin is obtained by modifying the ecosystem service value coefficient table of unit area in Harbin.The grid is taken as the research unit of ecosystem service value,and the spatial-temporal distribution pattern of ecosystem service value in 2000 to 2015 is analyzed.The results show that:(1)land use In terms of change,from 2000 to 2015,cultivated land,grassland and residential land increased;forest land,water area and unused land decreased;(2)during the whole study period from 2000 to 2015,the total ESV change was about RMB 1458 million.In the past 15 years,the value of ecosystem services in Harbin has generally decreased,with an increasing trend in 2000 to 2005 and a decreasing trend in 2005 to 2015,which is mainly caused by the decrease of forest land and water area.The most important component of the value of ecosystem services in Harbin is composed of forest land,followed by ecosystem services.The service value from big to small is water area,cultivated land and grassland.