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林业科学 1989年第4期25卷 360-365页

作者：于政中金大刚北京林业大学广西农学院林学分院

本文以会同县过去5年森林采伐情况为例,论证了应用林龄空间理论——减反率法预估集体林采伐量的可能性,并提供一个线性规划经营方案作为对照。通过比较,认为在规划期较长的条件下,减反率法预估采伐量与线性规划方案所得收获量一致。

关键词：林龄空间减反率法采伐量森林

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同龄纯林密度效应新模型的研究

生物数学学报 2002年第4期17卷 476-481页

作者：江希钿福建农林大学林学院福建南平353001

根据植物种群生物量增长模式和最终产量恒定理论,提出一种新的同龄纯林密度效应模型:V-β=ANβ+B.这里N和V分别为林分密度和平均单株材积;A、B、β分别是随生长阶段而变化的参数.采用杉木人工林密度试验材料进行验证。表明该模型能很好... 详细信息

根据植物种群生物量增长模式和最终产量恒定理论,提出一种新的同龄纯林密度效应模型:V-β=ANβ+B.这里N和V分别为林分密度和平均单株材积;A、B、β分别是随生长阶段而变化的参数.采用杉木人工林密度试验材料进行验证。表明该模型能很好地拟合实际的观测资料,明显优于目前常用的密度效应倒数模型和二次效应模型,显示了较大的优越性和较高的准确性.在新的密度效应模型中,取β=1可得密度效应倒数模型,即密度效应倒数模型仅为本文新模型的一个特例.

关键词：同龄纯林密度效应模型杉木林分生长

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广西桂林漓江流域水量减少的综合治理

生态学杂志 1992年第1期11卷 63-66页

作者：邓世宗广西农学院林学分院南宁530001

前言“山青水秀”,相辅相成,没有水则山不青,水也不会秀。没有水,只是光秃秃的石山,就不会桂林山水甲天下。可以说没有漓江,桂林就不会成为闻名于世的旅游城市。漓江不仅是桂林的,而且应该是广西和我国重点保护的江河之一。漓江的主要... 详细信息

前言“山青水秀”,相辅相成,没有水则山不青,水也不会秀。没有水,只是光秃秃的石山,就不会桂林山水甲天下。可以说没有漓江,桂林就不会成为闻名于世的旅游城市。漓江不仅是桂林的,而且应该是广西和我国重点保护的江河之一。漓江的主要功能是灌溉农田,供居民饮用的水源,还有工业用水,发电。

关键词：水源林区生态平衡

THE DISTRIBUTION OF PREFERENTIAL PATHS AND ITS RELATION TO THE SOIL CHARACTERISTICS IN THE THREE GORGES AREA,CHINA

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International Journal of Sediment Research 2007年第1期22卷 39-48页

作者： Hongjiang ZHANG1, Jinhua CHENG2, Yuhu SHI3, and Yun CHENG41 Prof., 2,4 Lecturer college of Soil and Water Conservation, P O box 67, Beijing forestry University, No. 35 Qinghua East Road, Beijing, 100083, China, 3 Assoc. Prof., forestry Science Institute of Hubei Province, Wuhan, 430075, China Beijing forestry Univ Coll Soil & Water Conservat Beijing 100083 Peoples R China forestry Sci Inst Wuhan 430075 Hubei Peoples R China

To study the characteristics of the distribution of the preferential paths and the affecting factors in the Three Gorges area, four soil profiles were dug to observe the distribution of preferential paths in the Quxi watershed in the Yangtze River basin. The Morisita exponential test method was used to examine the distribution type of preferential paths. The physical properties and infiltration characteristics of the soil were also measured to evaluate their relationship to preferential paths. The results showed that in this area, preferential paths clustered and mainly distributed in the 80-100 cm soil layer, and along the interface between the weathered layer and semi-weathered layer. There were more non-capillary pores in the 83-110 cm layer than in the other layers. It can be derived that most non-capillary pores in this layer were preferential paths caused by geological processes and rotten plant roots. The percentage of coarse soil particles increased with the depth of the soil layer. In the deeper soil layer, the coarse soil particles helped the formation of preferential paths. The fastest steady infiltration rate was observed in the of 83-110cm layer, which is inferred to be due to the greater number of preferential paths.

关键词： Preferential paths Morisita exponential test Physical properties of soil Infiltration characteristics of soil

A new benzofuran constituent from the husk of Carya cathayensis Sarg.

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A new benzofuran constituent from the husk of Carya cathayen...

第三届中国森林保护学术大会

作者： An-Liang Chen~* Shao-Yong Zhang Qiao Li college of forestry and Biotechnology,Zhejiang Agriculture & forestry University,Lin’an,Zhejiang 311300,China

During the course of screening for new antifungal agents from the husk of Carya cathayensis Sarg.,a new benzofuran-type compound,cathayenone A,was *** structure was elucidated by 1D and 2D- NMR and MS data *** inhibition rates of cathayenone A against spore germination of *** and *** were 95.8%and 86.7%respectively at the concentration of 0.1 mg/mL.

关键词： Carya cathayensis Sarg Antifungal constituent cathayenone A inhibition rates

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婴儿泪在室内生长的光照范围研究

生态学杂志 2004年第3期23卷 20-23页

作者：岳桦东北林业大学园林学院哈尔滨150040

研究了婴儿泪适宜生长的光照范围问题。通过测定试验房间光照的分布图 ,选择试验房间内具有代表性的光区进行栽培试验。实验环境温度为 15～ 2 5℃ ,湿度为 33%～ 6 9%。经栽培 4 0d后 ,用LI 6 4 0 0测定其不同光强下的光合特性 ,计算... 详细信息

研究了婴儿泪适宜生长的光照范围问题。通过测定试验房间光照的分布图 ,选择试验房间内具有代表性的光区进行栽培试验。实验环境温度为 15～ 2 5℃ ,湿度为 33%～ 6 9%。经栽培 4 0d后 ,用LI 6 4 0 0测定其不同光强下的光合特性 ,计算光补偿点、光饱和点、最大净光合速率。同时测定不同试验区植株的枝长与叶片数量的生长量。结果表明 :婴儿泪在 >8 5μmol·m-2 ·s-1～ <2 99 0 μmol·m-2 ·s-1(4 2 5～ 14 95 0lx ,RH33%～ 6 9% ,温度 15～ 2 5℃ )

关键词：婴儿泪光照范围室内栽培

TheEstimationofStemTaperCurvefromtheRadialInformationatThreeLocationsontheStem

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Forest Ecosystems 1996年第1期 79-86页

作者： Zheng Xiaoxian Liu Donglan college of Forest Resources and Environment, Beijing forestry University, Beijing 100083, P.R.China

该文探讨了不用编制削度表直接建立高精度立木干曲线的方法．当采用干曲线是３次多项式时，通常根据１０分法测定树干各部位直径，用最小二乘法求出该方程式的参数．从数学角度，只要知道树干任意３个部位的直径，就可以用最小二乘法或... 详细信息

该文探讨了不用编制削度表直接建立高精度立木干曲线的方法．当采用干曲线是３次多项式时，通常根据１０分法测定树干各部位直径，用最小二乘法求出该方程式的参数．从数学角度，只要知道树干任意３个部位的直径，就可以用最小二乘法或联立方程式求解干曲线参数．本文以樟子松为例，探讨用树干哪３个部位直径拟合的干曲线最接近实际干曲线，为建立立木干曲线提供有效方法．利用９个部位半径（方法Ⅰ）和利用其中３个部位半径（方法Ⅱ，２８种组合）分别拟合干曲线，结果表明方法Ⅱ的６种半径组合的精度良好，其中的３种组合，（ｒ１．３，ｒ０．３，ｒ０．７），（ｒ１．３，ｒ０．４，ｒ０．７）和（ｒ１．３，ｒ０．４，ｒ０．８）是拟合现实干曲线的有效方法．

关键词：樟子松干曲线 3次多项式

Stability of anthocyanin in wild blueberry fruit and its degradation kinetics

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Isolation and Identification of Phosphobacteria in PoplarRhizosphere from Different Regions of China

2.10 3rd International Conference on Future BioMedical Information Engineering (FBIE 2.10)

作者： Na Zhang college of Food Engineering Harbin University of Commerce Harbin Heilongjiang Province China Qingqi Guo college of forestry Northeast forestry University Harbin Heilongjiang Province China Yongqiang Ma college of Food Engineering Harbin University of Commerce Harbin Heilongjiang Province China

The effect of temperature on anthocyanin in wild blueberry fruit and chromatism were mensurated,and degradation kinetics of anthocyanin in wild blueberry fruit was *** results show that the anthocyanin in wild blueberry fruit is instable to heat,the degradation of anthocyanin in wild blueberry fruit is followed first-order reaction kinetics,and the thermal degradation activation energy of anthocyanin in wild blueberry fruit is 27.52 kJ/mol,the k0 is *** theoretical value and experimental value are propinquity,which indicate that the model is appropriate.

关键词： wild blueberry fruit anthocyanin stability degradation kinetics

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Pedosphere 2011年第1期21卷 90-97页

作者： LIU Hui WU Xiao-Qin REN Jia-Hong YE Jian-Ren college of Forest Resources and Environment Nanjing Forestry University Nanjing 210037 (China)

A few soil microorganisms can convert insoluble forms of phosphorus （P） to an accessible form to increase plant yields The objectives of this study were to isolate, screen and identify the phosphobacteria, i.e., phosphate-solubilizing bacteria （PSB） and phosphate-mineralizing bacteria （PMB）, in some poplar plantations and to select potential microbial inoculants that could increase the P uptake by plants. Seventy four PSB strains and 138 PMB strains were preliminarily screened from 797＂colonies isolated from the rhizosphere soil of poplar by the visible decolorization in the National Botanical Research Institute＇s phosphate growth medium （NBRIP） containing a pH indicator of bromophenol and by the clear/halo zone on yeast malt agar plate, respectively. Then, based on the solubilization of Ca3（PO4）2 in liquid NBRIP medium and the mineralization of lecithin in liquid Menkina medium, 15 PS1R strains and 7 PMB strains were further determined for their abilities to solubilize Ca3（PO4）2 and to mineralize lecithin. The results showed that the 15 PSB strains exhibited inorganic P-solubilizing abilities ranging between 376.62 and 669.56 mg L-1 and the 7 PMB strains exhibited organic P-mineralizing abilities vaxying from 0.32 to 1.56 mg L-1 three days after incubation. Three of PSB strains with the highest P-solubilizing ability, named JW-JS1, JW-JS2 and JW-SX2, were all preliminarily identified as Pseudomonas ftuorescens, while two of PMB strains with the highest P-mineralizing ability, named JYZ-SD1 and JYT-JS2, were preliminarily identified as Bacillus cereus and Bacillus subtilis, respectively. All the efficient PSB and PMB strains should be further studied under both pot culture and field conditions to test their beneficial effects on poplar.

关键词： Bacillus cereus Bacillus subtilis phosphobacteria poplar Pseudomonas fluorescens