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本文结合国家“七五”科技攻关项目——三江平原依兰示范区低山丘陵次生林区生态经济复合体研究,论述了生态气候在低山丘陵区森林生态立地分类中的应用。 首先,拟在用遥感信息和地理信息对研究区立地条件进行综合分析基础上,认定以水热状况为代表的生态气候要素为主导立地因子。为此,应用生态气候研究方法,对研究区生态气候进行了深入分析,并划分了生态气候类型,为森林生态立地分类打下了地理气候学基础;然后,选取水热状况并依据地貌、土壤、植被等特征,采用多因子综合分析,通过相关信息复合获取了7个森林生态立地类型;最后,根据景观生态建设原则和生态经济理论,提出了研究区森林生态立地资源合理利用的建议。
In this paper, based on the researches on ecological and economic complex of the Hilly and Semi-Secondary Forest Zone in the “Seventh Five-Year Plan” project of Yilan Demonstration Zone in Sanjiang Plain, this paper discusses the application of ecological climate in the classification of forest ecological sites in the hilly area. First of all, based on the comprehensive analysis of the site conditions in the study area with remote sensing information and geographic information, it is determined that the ecological climate factors represented by hydrothermal conditions are the dominant site factors. Therefore, applying the research method of ecological climate, the ecological climate in the study area has been deeply analyzed and the types of ecological climate have been divided, laying the foundation of geography and climatology for the classification of forest ecology. Then, Vegetation and other characteristics, using multi-factor comprehensive analysis, obtained by the relevant information composite of seven forest eco-site types; Finally, according to the principle of landscape ecological construction and ecological economic theory, put forward suggestions for the rational use of forest eco-site resources in the study area.