查询词典 forest

Title: Super Detective subtle psychological (2010.03.18) Description: White River Forest BMW forest industry in a regional timber line facilities and the railway crossing at the intersection of forest land found a body of a woman.

标题：超级神探微妙心理(2010.03.18)简介：白河林业局宝马林场施业区运材线与铁路道口交叉处的林地内发现一具女尸。

The species composition changes following succession rule. The canopies become closer when the pine forest develops to mixed forest and the later develops to broad-leaved forest. Thus more shade-tolerant species invade and some sun-loving(shade-intolerant) species exit.

物种的组成变化符合演替规律，随着针叶林发展成为混交林，混交林发展成为阔叶林，其林冠变得较为密集，因而有更多的耐阴植物侵入，而一些喜光种消失。

Through discussing the urban forest connotation, this paper pointed out some existing problems of tree species selection in present urban forest culture, and raised the urban forest culture tree species selection principle.

通过对城市森林内涵的探讨，指出了当前城市森林培育中树种选择存在的一些问题，提出了城市森林培育树种选择的原则。

It is a must to be solved urgently issue that coordinating the forestry economic and ecological benefits, In this study, the research based on the forest species selection, on the basis of carrying on field investigation to forester in some areas of Hebei Province, analyzed the influence of foresters operating different forest species and factors of influence forest species selection.

内容提要林业经济效益和生态效益的协调是当前林业发展亟待解决的问题。以林农对林种的选择为切入点，在实地调研的基础上，分析林农经营不同林种对协调林业经济效益和生态效益产生的影响以及影响林农选择林种的因素。

With increasing of world economy, the international trade of woody forest products develops rapidly, but some issues, for example, illegal-logging and associated trade, forest certification, inspection and quarantine in imports and exports, trade protection, increasing value through domestic process, trade disputes and so on, have more important influence to the international trade of woody forest products.

随着世界经济的增长，林产品国际贸易发展迅速，但非法采伐生产和贸易、森林认证、碳汇贸易、进出口检验检疫、贸易保护、国内加工增值、贸易争端等问题对世界林产品贸易影响越来越大，其中大多数与环境保护有关。

For the leaf area index of the three forest types, there was a similar variation trend, i.e ., increased first and decreased then, with the maximum presented in mid-July or August for Q. mongolica and J.mandshurica forests while in mid-August or September for F. rhynchophulla forest. The canopy porosity of the three forest types also had a similar variation trend, but opposite to leaf area index, being decreased first and increased then, with the minimum presented in mid-June, July, August or September. The analysis of variation coefficients of leaf area index, transmitted direct gap light, and transmitted diffuse gap light indicated that the spatial pattern of leaf area index in July-September was the main factor affecting the spatial distribution of transmitted diffuse gap light.

结果表明，3种林型的叶面积指数变化总体趋势是一致的，均呈先上升再下降的单峰曲线，蒙古栎林和胡桃楸林都是在7月中旬或8月中旬达到最大峰值，花曲柳林是在8月中旬或9月中旬达到最大峰值；3种林型冠层孔隙度的变化总体趋势也是一致的，呈先下降再上升的单峰曲线，不同样地峰值出现的时间也不同，最低峰值在6、7、8、9月中旬均有出现；通过对不同月份的叶面积指数、林下散射光、林下直射光的变异系数分析表明，7—9月叶面积指数的空间格局是影响林下散射光空间分布的主要因素。

The rusults indicated that the temperature in forest was lower and the growth of ginseng was slower than out of forest, the yields were also lower; with the increase of ginseng age, the rate of net photosynthesis became higher; when the canopy density of forest reached to about 0.7～0.8, the net photosynthesis, hight, root weight, transpiration,chlorophyll conten of ginseng were higher than others, indicating that both lower and higher canopy density would reduce the rate of net photosynthesis of ginseng, and that the canpoy density of stand could be adjusted to satisfy the temperature and lighting for ginseng, and to provide the optimum ecology enviorment for the growth of ginseng.

结果表明，在生长季节内，林内温度低于林外温度，林下人参生长发育较差，产量较低；林分郁闭度为0.7~0.8时，人参的净光合速率、株高、单根重、叶绿素含量等指标较高；而郁闭度过高或过低都会影响人参生长发育；随着人参年龄的增加，净光合速率有逐渐升高的趋势。通过人为调节林分郁闭度的方式来满足人参对温度和光照因子的需求，为林下人参生长发育提供最适宜的生态环境。

G,and applied on the class hiberarchy of forest resource about forest covered land and broadleaved forest covered land.

中实现描述逻辑推理的方法，通过森林资源中的有林地和阔叶林地类的层次结构描述逻辑推理应用。

The main study site is in Wuying forest area of Northeast China. Based on the analysis of structure features and dynamic changes of the Broadleaved Korean pine forests and its secondary forest types, this paper studied the restoration ways for the degraded forest ecosystem and sustainable management.

该文以黑龙江五营林区为主要对象，通过对阔叶红松林及其次生类型结构特征和动态变化的分析，研究退化生态系统的恢复途径和可持续经营措施。

Meanwhile,other measures such as forest ecological benefit compensation,forest park and nature reserve development have been adopted to protect natural forest with special values or roles.

此外，通过开展森林生态效益补偿、建立森林公园和自然保护区等措施，保护具有特定意义和作用的天然林。

I go to school at night.

我是上上学。

Clear Tip Nasal Aspirator: A soft time and gentle suction action makes removing excess mucus easy.

鼻吸明确提示：一个柔软的时间和温柔吸力行动使消除过剩的粘液容易。