跪请高手翻译林业景观方面的专业论文，请不要用机器翻译，谢谢

问题描述：

When a cost factor is included in the set of characteristics, it is possible to estimate monetary values associated with changes in forest characteristic, as in this case. The monetary measure is the so-called willingness to pay (WTP). The WTP can be estimated separately for each characteristic, as well as for different combinations of characteristics (Boxall et al., 1996; Adamowicz et al., 1998). Elaborate knowledge about WTP for changes arising from forest management practices offers a way to ascertain, for example, the value of recreational changes associated with replacement of even-aged in favour of nature-based management. This change of main forest management system was recently decided upon for the Danish state-owned forests (Anon., 2002). In this context, the objectives of the study presented
here were to:
1. Identify public preferences regarding:
a. tree species composition,
b. tree height structure (as a consequence of silvicultural system), and
c. amount of standing or fallen dead trees left for natural decay.
2. Assess marginal willingness to pay for changes in these characteristics.

问题解答：

当成本因素在套包括特征时，估计货币值与在森林特征上的变化相关，作为在这种情况下是可能的。 金钱措施是所谓的自愿支付(WTP)。 WTP可以为其中每一分开地估计典型，并且为特征(等Boxall的不同的组合， 1996年; Adamowicz和 Al 1998)。 精心制作的知识关于WTP为变动出现从林业管理实践提供一个方式查明，例如，消遣变动的价值与替换均匀变老相关倾向于基于自然的管理。 主要林业管理系统的这变动为丹麦国有森林最近决定了(不久。， 2002)。 在这上下文，被提出的研究的宗旨
这里：
1. 辨认公开特选关于：
a. 树树种组成，
b. 树高度结构(作为造林的系统结果)，和
c. 相当数量站立或下落的死的树为自然朽烂离开。
2. 估计少量的自愿支付在这些特征上的变化。