摘要
森林立地研究是科学造林、营林的基础。它能提供适宜的造林树种,育林措施及生产力预报。作者于1986—1987年通过对年珠林场杉木(Cunninghamia lanceolata)人工林野外调查、室内分析、多元数学统计,筛选出主导因子进行立地类型划分;根据地位指数、叶片营养及环境因子作出立地质量评价。同时进一步探讨了土壤条件与杉木生长的关系,从而导出评估杉木生产力的预报方程。
The purpose of this sutdy was to classify site types and evaluate the site quality of the plantation of Cunninghamia lanceolata in Nianzhu Forest Farm, Fenyi County, Jiangxi Province, by stand growth and other site factors, especially edaphic factors. Multiple regression analysis was used to study the relationships between site index and site factors. The results showed that the main site factors were slope position and the depth of humus horizon.Ⅱ site types were classified in accord with the two factors, and the forecasted equation of site index was derived to predict stand productivity of C. lanceolata. The paper also preliminarily studied the relationships between site index and foliar nutrient of C. lanceolata. The results proved that site index was correlated positively with foliar nutrient of P%, N%, Ca%.
出处
《林业科学研究》
CSCD
北大核心
1989年第3期286-290,共5页
Forest Research
关键词
杉木
立地
土壤
叶片营养
Cunninghamia lanccolata
site
soil
foliar nutrient
