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黄河故道土地整理景观效应分析
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摘要
土地整理可能对区域景观格局产生重要影响,黄河故道地区是河南省重要的土地整理开发区域。以河南省南乐县寺庄土地开发整理项目为例,通过GIS手段,应用景观生态学方法,分析项目区土地整理前后的土地利用结构和景观格局变化。结果表明:土地整理实施后,在土地利用结构发生显著变化的同时,景观破碎化程度与景观多样性显著降低。基于黄河故道地区的生态特征,提出了该区域土地整理景观效应分析的常用指标,并建议在今后的土地整理活动中引入景观生态设计理念,实现生态效益与其他效益的有机结合。
Land consolidation plays an important role in promoting land use and improving ecological environments. It produces the changes of land use and their spatial structure to result in the changes of landscape pattern and ecological effects. Therefore, it is very important for planning and designing eco-environmental evaluation of land consolidation, so as to study its landscape-ecological effects. The old course of the Yellow River is a kind of typical ecology vulnerable regions,and it has its unique land resources,ecological system and sociology features compared with other area.Taking Sizhuang land consolidation project on Nanle county in Henan as an example, the changes of land use structure and landscape patterns for land consolidation are analysis using GIS combined with method of landscape ecology in this paper. The results showed that each index had changed clearly. It shows that it is very necessary to introduce the planning and designing method of landscape ecology into land consolidation.
引文
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