福建沿海惠安县的景观生态格局分析与评价研究

采用景观生态学研究方法,选取景观多样性指数、优势度、均匀性等指标,对福建省惠安县的景观格局进行了分析。结果显示,研究区内景观空间格局表现为以农田为主的景观结构,而林区景观的多样性指数最高,但整个地区的生态环境仍比较严峻。整个研究区共有斑块7032个,其中最大斑块11．2km^2,最小斑块420m^2,斑块在大小上差异很大。随着人类干扰强度增加,景观多样性下降,优势度增高。

Analysis and Evaluation of the Landscape Patterns in Huian County of Fujian Costal Area

The paper studied the landscape patterns in Huian, a coastal county of Fujian Province. By selecting the diversity index,dominance index and evenness index,the landscape patterns in the county were analyzed. The result showed that the landscape pattern was mainly the farmland and the diversity index of forestry areas was the maximum, but the environment quality was rather poor. There were 7 032 patches in the studied region, and the largest was 11.2 km~2, the smallest was 420 m~2, this showed that the difference of patch areas was very large. With the increasing disturbances, the landscape diversity decreased and the dominance increased.