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Proper shrubbery – Tamarix ramosissima was taken as the research subject, Through the observation of upper organic matter aggradation and the research of underground annual changes of soil organic carbon. Make sure the accumulations of soil organic carbon and the carbon cumulation under the Tamarix,The results indicate that: 1)Based on one year's observation,We found that,the formation of annual layer depending on the dynamic balance between hearty growth of Tamarix and reposeful accumulated environment.

本研究选择干旱区特征性灌木植物——柽柳为研究对象,通过对柽柳冠下地表有机质沉积的观测以及地下土壤有机碳含量年际变化的研究,查明柽柳冠下土壤有机碳的积累情况及其碳蓄积作用,并探讨柽柳在全球气候变化和碳循环中的作用及贡献,为进一步研究干旱区碳循环及其碳汇功能提供基础数据。

The estimate model of the tree's volume is shown by allometry method,the CVD model that transforms tree's volume into biomass reduced and its practical model process is explained.

研究了用相对生长法表示的材积和蓄积模型,导出了单木材积与其生物量的关系模型以及区域蓄积量与生物量的关系模型,即CVD模型,并说明了实际的建模过程。

Adopting the network of radial basis function ormended BP network,the forecasting network model of stock on estimation region can beestablished.The stock of each pixel in estimation region can be calculated through simulationapproach,the total stock of compartment or sub-compartment can be obtained by way of theintegration to all pixels.

通过径向基网络或改进的BP网络建立估测区域蓄积预报网络模型,借助仿真方式计算估测区域每个像元的蓄积,对全部像元积分可得到林班或小班的总蓄积

Incompressible hydraulic fluid is liquid, so the use of hydraulic oil pressure can not accumulate energy, we must rely on other media to conversion, the pressure can be accumulated.

液压油是不可压缩液体,因此利用液压油是无法蓄积压力能的,必须依靠其他介质来转换、蓄积压力能。

Aeruginosa increased with the increased initial P concentration in the media;② Under the constant N concentration, the phosphorus uptake of M. aeruginosa was correlated positively with the initial P concentration;③ Under the constant P concentration, the accumulation of phosphorus by M. aeruginosa was correlated negatively with the initial N concentration, but the trend was not obvious and the effect of initial N concentration on the uptake P quantity became ruleless when the initial N concentration reached a higher level (21 mg/L).

结果显示,①氮磷比不变时,随着起始磷浓度的增加,铜绿微囊藻对正磷酸盐蓄积量也逐渐增加,成明显正相关;②氮浓度不变时,铜绿微囊藻对正磷酸盐的蓄积效果与磷浓度正相关;③而同一磷浓度下,铜绿微囊藻对正磷酸盐的蓄积效果与氮浓度负相关,但氮浓度超过21 mg/L时,氮浓度对于铜绿微囊藻蓄积磷的效果影响变得不规则。

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。

Methylglyoxal is a toxic endogenous substance known to react with proteins to form advanced glycation endproducts, which accumulated in the body during aging. Hyperglycemic can accelerate the accumulation of AGEs, and it has been link to the development of diabetic complications.

由於Methylglyoxal在体内会形成高阶糖化终产物,而这些终产物在老化过程中会大量蓄积且高血糖会加速其蓄积,而与糖尿病晚期的并发症有相当的关联性。

There are distinctdifferences in the distribution and metabolism in the rat tissues after ivadministration of the two epimers of GL. After iv administration,α-GL istarget to the liver, and can be efficiently converted to more glycyrrheticacid thanβ-GL, and it nearly has no accumulation in the tissues.The distribution ofβ-GL in rat tissues appears to be wide throughout thebody, and its metabolism is slower than that ofα-GL to accumulating insome tissues.

结果显示α-GL与β-GL在大鼠体内的组织分布存在显著性差异,大鼠尾静脉注射α-GL后在体内呈肝分布特异性,转化成甘草次酸的速率高于β-GL,无组织蓄积;而β-GL在体内分布广泛,代谢较慢,有蓄积的可能。

Through analyzing management regulation results, it put forward the optimal species composition of spruce-fir mixed stands, and then research problem about the optimal stand structure and the maximum stand volume increment. At the same time, compared to dahurian Lanch pure plantation on economical value and ecological value.

通过对经营结果的分析,提出云冷杉针阔混交林的最优树种组成——针阔混交比为7:3,还对针阔混交林的最优林分蓄积和最大蓄积生长量等问题进行了研究,并从经济效益和生态效益2方面与人工落叶松林进行了对比。

This course is an attempt to give the students the basic idea and method of forest management in order to prepare the management plan; Place of forest management in forestry; Content of forest management; Guide principles of forest management; Sustained working; Silvicultural system; Forest yield; Increment; Volume increment; Quality increment; Price increment; Total price increment; Forest maturity; Indicating percent; Productive stage; Physical rotation; Technical rotation; Rotation of maximum volume yield; Highest forest rent rotation; Financial rotation; Cutting cycle of selection system; Normal forest; Normal distribution of age classes; Normal arrangement of stands; Normal increment; Normal growing stock; Normal yield; Improvement of actual forest; Reserve forest; Reserve fund; Planning and plan of forest management; Forest regulation; Area allotment; Volume allotting method; Volume frame work; Area-volume combined frame work; Growing stock; Utilization percent method; Difference method; Pure age-class; Growth method; Control method; Forest subdivision; Forest surveying; Forest survey; Certainty of future policy of forest; Selection of species; Decision of silvicultural system; Decision of rotation; Regulation of future yield; Preparation of management plan; Working the plan; Control and revision of management

本课程之目的为使学生了解森林经营之基本观念及方法,以期编订经营计划,课程包括森林经营学在林学上之地位、森林经营学之内容、森林经营之指导原则、保续作业、森林作业法、森林收获、生长、材积生长、形质生长、腾贵生长、总价格生长、林木成熟期、指率、生产期、自然轮伐期、工艺轮伐期、材积收获最多轮伐期、森林纯益最大之轮伐期、财政轮伐期、择伐林之回归期、法正林、法正龄级分配、法正林分排列、法正生长、法正蓄积、法正伐采额、现时林之改良、预备林、预备金、森林经营上之规划及计划、收获预定、面积配分法、材积配分法、材积平分法、折衷平分法、蓄积法、利用率法、较差法、纯粹龄级法、生长量法、稽核法、森林区划、森林测量、森林调查、将来森林经营方针之确定、树种之选定、作业法之决定、轮伐期之判定、将来收获之预定、经营管理计划之编订、计划之执行、经营管理计划之稽核与检订。

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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。

Chapter Three: Type classification of DE structure in Sino-Tibetan languages.

第三章汉藏语&的&字结构的类型划分。