摘要
基于GIS和Erdas平台,从不同区位、不同缓冲条带内的植被组成、空间分布状态及其景观格局,对青山嘴水库周边的陆域植被格局对水库修建的响应进行研究。研究表明,青山嘴水库建设前后,研究区植被均为7类,但建库后自然植被呈增长趋势(增加了403.40 hm2),植被生境总体上向生态质量较好的方向演变,但不同地段上植被分布格局与演变有差异。这主要是高干扰-低生态质量型生境类群与中干扰-过渡型生境类群或轻干扰-高生态质量型生境类群之间的转变程度或数量在空间上分配不均匀致且这种变化趋势集中发生于距水库500 m以内的缓冲区域内。在500 m以外区域内,不同区位植被生境均表现出不同程度的好转。
Based on the technology of GIS and Erdas, the responses of vegetation distribution patterns around QingshanzuiReservoir on reservoir construction are analyzed from the composition, distribution and landscape of vegetation in different sub-regions. The results show that there are still seven types of vegetation in studied region before and after reservoir construction,in addition, the natural vegetation area will be increased by 403.40 hm2 after reservoir construction. The vegetation habitatgenerally evolves into a direction of better ecology quality, but there are differences in vegetation distribution pattern andevolution in different sub-region. The non-uniform transformation or distribution between high interference-low ecological qualityland and medium interference-transitional ecological quality or low interference-high ecological quality land has led abovechanges, and these changes happen in buffer area with a distance of 500 m to reservoir. On the outside of the buffer area, thevegetation habitat of different sub-region will get a better change at different extent.
出处
《水力发电》
北大核心
2015年第6期5-10,共6页
Water Power
基金
国家科技支撑计划项目(2011BAC09B07)
关键词
陆域植被
景观格局
生态环境
青山嘴水库
滇中地区
egetation
landscape pattern
ecological environment
Qingshanzui Reservoir
Central Yunnan
