黄土高原
腐蚀
环境科学
中国
黄土
土壤流失
高原(数学)
土地利用
土地退化
土壤科学
水文学(农业)
地质学
地理
地貌学
生态学
岩土工程
考古
数学分析
生物
数学
作者
Bojie Fu,Qiang Meng,Qinli Yang,Wenwu Zhao,Q. J. Zhang,Donald A. Davidson
摘要
The study focused on the so-called dark coniferous forest belt on the northern slope of Changbai Mountain, at an attitude of 1100 to 1700 m. Forty tree species, 50 shrub species and 165 herb species were recorded in a series of transects. The main impact factors on forest diversity and proposals for sustainable management of this diversity were studied using an altitude and area gradient pattern method. The results showed that the diversity of dark coniferous forest gradually decreased from lower to upper altitude; while the importance value of key species increased. The methodology used to assess attributes for conservation of dark coniferous forest diversity involved measurement of individual trees, number of species, age structure, stand structure, diameter at breast height (DBH), and cumulative wood storage. Different conservation strategies have been developed and are discussed for different parts of the forest.
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