摘要
土地利用结构的改变对生态系统服务功能影响深远。参照前人提出的陆地生态系统价值当量因子表并结合研究区实际情况,计算出研究区2005-2013年生态系统服务价值VESV。结果表明：莲花镇生态系统服务价值构成中,林地占主要部分,达到75%以上,其次是水域。研究区总VESV由2005年的45.73×107元减少到2013年的44.81×107元,林地面积的减少以及建设用地面积的增加是生态系统服务价值减少的主要原因;对开展＂综合土地整理＂项目的五村进行分析,结果表明大华村和立马村的单位面积ESV较高,说明两村生态效益较高,土地利用规划更加合理;桐木村的单位面积ESV最小,在今后的发展中应增加林地面积,保护耕地,减少未利用地向建设用地转变。研究期内各土地利用类型的敏感性指数均小于1,说明研究结果可信。
Changes in land use structure has far-reaching impact on ecosystem service functions. In reference to the former＇s equivalency factors table about terrestrial ecosystem values（VESV） and taking into account the actual situation of the study area, the ecosystem service functions values of the area from 2005 to 2013 were calculated. The results show that in the total ESV of Lianhua Town, the forestland area occupied the major part, being more than 75%, followed by that of water; The VESV decreased from 457.3 million Yuan to 448.1 million Yuan during the period, the increasing areas of construction land are main reasons. Analyzing ESV of the five villages that have implemented the ＂integrated land consolidation＂ project, the results show that Tongmu village had the lowest unit ESV, Dahua and Lima village had the higher unit ESV, this suggested that the two village＇s land use planning were more rational than that of other village, so achieving higher eco-efficiency. It is necessary to reduce unused land being converted to construction land and maintain area of existing farmland. Each land use type of ecosystem services sensitivity index was less than 1, indicating that the results are credible.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2015年第3期107-111,共5页
Journal of Central South University of Forestry & Technology
基金
国家自然科学基金项目(30260053)
湖南农业大学人才引进项目(07YJ16)
关键词
土地利用结构
林地面积
生态系统服务价值
敏感性指数
长沙市莲花镇
land use structure
forestland area
value of ecosystem service
sensitivity index
Lianhua Town of Changsha city
