Green Ash Growth Curves
Green Ash Growth Curves
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绿灰生长曲线
DOI：
10.2307/3628123
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发表时间：
1990
期刊：
影响因子：
--
通讯作者：
And Keith D. Lynch
中科院分区：
文献类型：
--
作者：
W. Geyer;And Keith D. Lynch
绿色灰生长在本土木材林分在堪萨斯的增长潜力可以使用新开发的网站指数曲线进行评估。根据1964 - 1965年堪萨斯森林资源调查收集的数据计算出一条单一的指导曲线，并计算出协调曲线。绿色白蜡（Fraxinus penncarica L.）在堪萨斯的大部分地区都能找到（Stephens，1969）。它具有很高的商业重要性，在采伐的锯材中排名第二（Raile和Spencer，1984年）。它主要用于容器，工具手柄和家具。因为它是哈代耐寒的极端气候，它是发现在各种网站。绿色白蜡树在潮湿的洼地和河岸自然生长得最好。一般来说，它不能容忍森林竞争，几乎生长在纯林中（Harlow和Harrar，1950年）。评价林地生产力（一个地区的木材生产潜力）是从林地获得最大利益的管理的一个重要方面。立地指数法是确定立地质量的最广泛接受的方法。它使用树高/年龄的关系，这与木材产量相关。根据定义，地位指数是在一个充分放养，平均年龄的立场，在年龄50年的优势/共同优势（上层）树木的平均高度。曲线或表格已公布的许多商业树种在美国。在堪萨斯，只有黑核桃（Juglans nigra L.）和朴树（Celtis occurentalis L.）已发表（盖耶和林奇，1987年;林奇和盖耶，1988年）。本文的目的是为堪萨斯的自然林分中重要树种提供一系列地位指数方程、曲线和高度表中的另一个。程序
The growth potential of green ash growing in native timber stands in Kansas can be evaluated using newly developed site-index curves. A single guide curve was computed from data gathered in the 1964-1965 Kansas forest inventory and harmonized curves were calculated. Green ash (Fraxinus pennsylvanica L.) is found throughout most of Kansas (Stephens, 1969). It has high commercial importance and ranks second in harvested sawtimber (Raile and Spencer, 1984). It is used principally for containers, tool handles, and furniture. Because it is hardy to climatic extremes, it is found on a variety of sites. Green ash naturally grows best on moist bottomlands and stream banks. Generally, it is not tolerant of forest competition and grows in almost pure stands (Harlow and Harrar, 1950). Evaluation of site productivity (wood-producing potential of an area) is an important aspect of management for attaining maximum benefits from forest lands. The site-index method is the most widely accepted means for determining site quality. It uses tree height/age relationships, which correlate well with timber yields. By definition, site index is the average height at age 50 years of dominant/codominant (overstory) trees in a fully stocked, evenaged stand. Curves or tables have been published for many commercial tree species in the United States. In Kansas, only curves for black walnut (Juglans nigra L.) and hackberry (Celtis occidentalis L.) have been published (Geyer and Lynch, 1987; Lynch and Geyer, 1988). The purpose of this paper is to provide another in a series of site-index equations, curves, and height tables for important tree species growing in natural stands in Kansas. PROCEDURE