不同立地类型棕榈人工林生长与产量的初步研究

A Preliminary Study on Growth and Yield of Palm Artificial Forest in Different Site Types

立地类型与林分的生长关系密切,开展不同立地类型下棕榈人工林生长与产量的研究旨在为棕榈人工林的经营管理提供理论依据。本研究以红河县石头寨乡棕榈人工林为研究对象,以坡向、坡位为划分因子将调查样地划分为四种不同的立地类型,对比其生长、产量及土壤养分状况,同时进行相关性分析。结果表明,阳坡山谷立地类型最有利于棕榈生长,阴坡山谷立地类型棕片、棕柄的综合产量最高,阳坡山脊立地类型土壤的养分状况最好。通过相关性分析结果表明茎干单节长与土壤的有机质、全氮含量呈显著负相关,棕片重与土壤全氮、全磷含量呈显著正相关关系。

Site type is closely related to forest growtli. Study on the growtli and yield of different site types may provide theoretical basis for the management of palm plantations. In this study, thepalm plantations in Shitouzhai Township of Honghe County were selected as the research object. Taking the slope direction and slope position as the division factors, the sample plots were divided into four different site types. Their growth, yield and soil nutrient status were compared, and the correlation analysis was conducted.The results showed that the Sunny Valley site type was the most conducive to the growth of the palm. The Val-ley site types on shady slope was the highest comprehensive yield. The site type of sunnysoil nutrient. The results of tiie correlation analysis showed that tiiere was a significant negative correlation be-tween stem lengtii and soil organic matter and total nitrogen content. Palm sheet weight was positively correla-ted witii total nitrogen and total phosjDhorus content in the soil.