摘要
在对新疆干旱区不同植被带表土孢粉组合分析的基础上,用关联度分析权重指数和法,探讨了植被类型与孢粉组合之间的关系,并归纳出环境评价等级指数和与植被带对应关系表。经初步检验,对应关系与实际状况基本相符。
Establishing the relationship between sporo-pollen assemblages in surface soil and surrounding vegetation is an important work for correctly reconstructing paleo-vegetation, paleo-environment and their history of development and evolution by sporo-pollen analysis. The Grey System, a new mathematical theory, was applied to the research on the sporo-pollen assemblages of surface soil. Based on the sporo-pollen analysis of surface soil samples from the. northern slope of the Tianshan Mountain, the relationship between surface soil and vegetation forms was approached by the method of weight index analysis from correlation degree. A table on corresponding relationship between the sum of ecotope grade index and vegetation zones was induced., which tallies with the reality on the whole through thepreliminary test. This method would benefit the research on paleo-ecoenvironment and its evolution with the aid of sporo-pollen analysis more promptly and precisely.
出处
《地理科学》
CSSCI
CSCD
北大核心
1993年第3期227-233,共7页
Scientia Geographica Sinica
关键词
干旱区
表土样品
孢粉组合
植被
Arid region
Surface soil sample
Sporo-pollen assemblages
