杉木

Soil corer was used to investigate the distribution of fine root and a traditional method of nylon litter bag to measure the decomposition in pure Cunninghamia lanceolata and Michelia macclurei var Sublanea ,and the mixed plantations.

用土钻法研究了杉木、火力楠纯林和混交林的细根分布，用分解袋法研究了杉木和火力楠细根的分解，计算了3个林分中细根分解的N，P，K，Ca，Mg的归还量。

The results showed that the concentration of dissolved organic carbon in leachate from fresh litter fall was lower and that from F layer was higher for both plantations. In Castanopsis plantation, DOC concentration declined with the increasing number of leaching times, whereas that in China fir plantation increased at first then decreased.

光谱特征。结果表明，格氏栲和杉木人工林新近凋落物淋出液的DOC浓度较低，F层淋出液的DOC浓度较高；格氏栲凋落物淋出液的DOC浓度基本上随淋溶次数的增加而降低，杉木的则先升后降。

This is of great significance to the sustainable management practice of forestland in southern China.

在此基础上，搞好杉木人工林规划和发展，这对南方杉木产区林地可持续经营实践具有较大的指导意义。

My cave is behind a tall cedar by the stream a half-mile above us. You can see the broad top of the cedar from the road.

我的山洞就在我们上面半哩路远的小溪边，一棵大杉木的后面──您从这条路，就可以看到那棵杉木宽阔的树顶了。

The female parents are 4 choice [1] ness clones in Chinese fir primary orchard. The male parents are 3 polyanthus clones in the gene pool of old Chinese fir, the mixed pollen of these clones and all the clones in this gene pool. The testing woods were founded with 18 cross grouping which were obtained by the using of NCⅡ.

以经过子代测定的杉木初级种子园中的4个优良无性系为母本，老杉木种质资源库中的3个花芽较多的无性系及其混合花粉和种子园混合花粉为父本，采用测交系交配设计进行杂交制种，获得18个杂交组合并以此营建试验林。

Three optimal structures were gotten in this paper by the model of elastic modulus along the grain, elastic modulus in tangential direction, in-plane shearing modulus and laminate rigid:①0/90/0/90/0/90/0/90/0, the outside four veneer is modified, the along grain MOE and MOR are 8377MPa, 60.9MPa respectively; The across grain MOR is 35.1 MPa, and TS is 17.2%.

4通过应用杨木单板顺纹弹性模量、横纹弹性模量、面内剪切模量及层合板刚度模型进行杉木胶合板结构设计，经多次修正，得出较好结构有以下几组：①0/90/0/90/0/90/0/90/0，最外四层为杉木改性单板，顺纹弹性模量和静曲强度分别达到了8377MPa，60.9MPa；横纹静曲强度为35.1 MPa，吸水厚度膨胀率为17.2%。

The colonized time of Ol. Opisthopora and Coleoptera were 8.42 and 6.45 months at mixed forest respectively, while Hymenoptera and Collembola were 9.48 and 7.91 months respectively at Chinese fir forest.

后孔寡毛目在杉木混交林凋落物中集聚的时间最长，鞘翅目集聚的时间最短，分别为8.42和6.45个月；膜翅目在杉木纯林凋落物中集聚的时间最长，弹尾目集聚的时间最短，分别为9.90和7.91个月。

The study on self-thinning mechanism will provide referencefor density management and regulation of Cunninghamia lanceolata plantation.

杉木林自疏机制的研究可作为杉木人工林的密度管理和调控的依据。

CCF of control kept relatively stable, but that of thinning plots firstly decreased, then increased with ages and graduallyapproached to that of control. For Cunninghamia lanceolata plantation with different initial planting density, annual average growth rate of basal area and volume of low-density stands was more than that of high density.

对不同初植密度的人工杉木林分进行断面积和蓄积的研究，发现不同初植密度对杉木林分的断面积和蓄积的生长有一定的影响，初植密度大的林分断面积和蓄积年平均生长率要小于初植密度小的林分，说明初植密度小的林分有向初植密度大的林分渐近的趋势。

This paper probed into existing problems of forest price based on collecting a vast mount of input and output data on Cunninghamia lanceolata and Pinus massoniana,and calculating their forest prices of growing stock and log per unit each species.

收集大量杉木、马尾松的投入和产出资料，测算杉木、马尾松单位活立木蓄积的林价与木材的林价，在此基础上，探讨了林价存在的问题，提出了完善林价体制的几点建议。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。