ZHANG Jing,MA Cai-hong,WANG Qi-ming,et al.Analysis on Land Use Dynamic Changes in Hanzhong City[J].Research of Soil and Water Conservation,2012,19(01):112-116.
汉中市土地利用变化的动态变化研究
- Title:
- Analysis on Land Use Dynamic Changes in Hanzhong City
- 分类号:
- F301.24
- 摘要:
- 基于汉中市1996—2010年土地利用现状变更调查数据，运用土地利用动态度模型、土地利用程度模型、空间差异模型，对汉中市14 a间土地利用的时空变化进行了详尽的分析。研究表明：汉中市耕地、未利用地面积减少，林地、牧草地、居民及工矿用地、园地和交通用地增加；研究区土地利用变化速度较缓，年变化率为0.17%，其中牧草地年变化率（2.30%）最大，耕地的年变化率也较大；2010年土地利用综合指数为215.64，土地利用程度不太高，汉中市土地利用处于调整期；研究区土地利用的多样化指数、多样性指数和均匀度指数呈下降趋势，而优势度指数则呈上升趋势，说明人类活动对景观格局有较为明显的影响。
- Abstract:
- Based on detailed survey data of land use from 1996 to 2010, using the dynamic degree mode, change of land use degree mode and spatial differences mode, we analyzed the land use spatio-temporal changes in Hanzhong City. The conclusions were drawn as follows: During 1996 and 2006, land use changed obviously. Farmland and unused land reduced, meantime, forestland, pastureland, rural residential land, garden plot and traffic land increased. The synthetic dynamic degree of land use in Hanzhong City was 0.17% per year. The conversion rate of forestland was 2.30% per year, which was the biggest number of all the land use types. The integrated index of land use was 215.64 in 2010. Land use degree was not too high. The land use in Hanzhong City was in a period of adjustment. The diversity index, index of diversification and evenness index have declined but the dominance index has risen, which shows human activities on the landscape pattern has more obvious effects in Hanzhong City.
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备注/Memo
收稿日期:2011-7-19;改回日期:2011-7-26。
基金项目:陕西理工学院专项科研基金项目（SLGQD0620）；陕西省教育厅项目（11JK0748）
作者简介:张静（1981- ），女，陕西汉中人，硕士，讲师，主要从事资源开发与环境评估。E-mail：zj2003y@yahoo.com