中老缅交界地区橡胶种植及其地形因素分析(英文)

编号 zgly0001585347

文献类型 期刊论文

文献题名 中老缅交界地区橡胶种植及其地形因素分析(英文)

作者 刘晓娜  封志明  姜鲁光  李鹏  廖谌婳  杨艳昭  游珍 

作者单位 InstituteofGeographicSciencesandNaturalResourcesResearch  CAS  UniversityofChineseAcademyofSciences 

母体文献 Journal of Geographical Sciences 

年卷期 2013年06期

年份 2013 

分类号 S794.1 

关键词 rubberplantation  spatial-temporalanalysis  topographicalfactors  opiumpoppysubstitutionplanting(OPSP)  theborderregionofChina  LaosandMyanmar(BRCLM) 

文摘内容 Rubber plantation is the major land use type in Southeast Asia. Monitoring the spatial-temporal pattern of rubber plantation is significant for regional land resource development,eco-environmental protection,and maintaining border security. With remote sensing technologies,we analyzed the rubber distribution pattern and spatial-temporal dynamic; with GIS and a newly proposed index of Planted Intensity(PI),we further quantified the impacts and limits of topographical factors on rubber plantation in the border region of China,Laos and Myanmar(BRCLM) between 1980 and 2010. The results showed that:(1) As the dominant land use type in this border region,the acreage of rubber plantation was 6014 km2in 2010,accounting for 8.17% of the total area. Viewing from the rubber plantation structure,the ratio of mature-(≥10 year) and young rubber plantation(<10 year) was 5:7.(2) From 1980 to 2010,rubber plantation expanded significantly in BRCLM,from 705 km2to 6014 km2,nearly nine times. The distribution characteristics of rubber plantation varied from concentrated toward dispersed,from border inside to outside,and expanded further in all directions with Jinghong City as the center.(3) Restricted by the topographical factors,more than 4/5 proportion of rubber plantation concentrated in the appropriate elevation gradients between 600 and 1000m,rarely occurred in elevations beyond 1200 m in BRCLM. Nearly 2/3 of rubber plantation concentrated on slopes of 8°-25°,rarely distributed on slopes above 35°. Rubber plantation was primarily distributed in south and east aspects,relatively few in north and west aspects.Rubber planted intensity displayed the similar distribution trend.(4) Comparative studies of rubber plantation in different countries showed that there was a remarkable increase in area at higher elevations and steeper slopes in China,while there were large appropriate topographical gradients for rubber plantation in Laos and Myanmar which benefited China for rubber trans-boundary expansion.(5) Rubber plantation in BRCLM will definitely expend cross borders of China to the territories of Laos and Myanmar,and the continuous expansion in the border region of China will be inevitable.