关帝山地方气候梯度及其与植被空间分布关系的研究

根据景观生态学研究的需要，本文应用二级订正法，对以庞泉沟自然保护区为中心的关帝山地区山地地方气候梯度进行了分析研究，分别五个地形面确定了气候梯度变化规律，计算出各海拔带上逐月平均气温和降水量，并进一步计算出各海拔带的年生物温度、可能蒸散、湿润指数，≥１０℃积温等生物气候指标。分析了上述指标的梯度分布与当地植被沿海拔梯度分布和农作物种植格局的一致性。为该地区景观生态研究、森林立地分类评价、适地适树规划相关研究奠定了基础，并为类似研究提供了范例和方法。

A Study on the Relationship Between the Local Climatic -geographic Gradient and the Bio climatic Indices in Guandi Mountains

This paper provides an approach of Two-step Adjusting Method(TAM) for local climate-geographical gradient research in mountain area to meet the request of landscape ecological research. With the TAM, the local climate-geographic gradient in Guandi Mountains, centralized by Pangquangou Natural Reserve, are researched and analysed seperately in five geographic sub-area in the paper. As results, monthly mean temperatures and precipitations at different altitude zones in five sub-areaes are estimated by climate-geographic gradients. Based on the two indices,some bio-climate indices such as biotemperature(BT), potential evapotranspiration(PE), annual precipitation(APP), moisture index(I) and accumulative temperature above 10℃ are calculated for five sub-areaes in different altitude zones. The distribution or changing patterns of these indices along altitude gradient consist with the distribution of local natural vegetation types and agricultural crop growing pattern. This provides us a basic background for more detailed research in landscape ecology, forest site classification and evaluation, forest silvicultural programming and bio-diversity reserve in the area. It can also be used as a model for similar research.