红外光谱法鉴别丹参的实验研究

用溴化钾压片法测定丹参和栽培丹参中药粉末的红外图谱，并对两者进行比较，结果表明其红外光谱能显示各自的特征性，中药材红外光谱有重要的鉴别意义。     

随机森林方法在致病SNPs检测中的应用

通过全基因组关联研究发现了大量复杂疾病相关变异，近来关注的焦点又集中在了如何利用单核苷酸多态性数据进行深入分析，期待发现更多复杂疾病的易感基因。随机森林是一种新型的集成分类决策器，可以在对样本分类的同时，计算预测变量的重要性值。该文将随机森林方法应用于全基因组数据，实验结果表明该方法可以作为致病SNPs检测的有效参考方法。     

浙江百山祖常绿阔叶林内苔藓植物的研究

作者采用无样抽样点四分法对浙江省百山祖常绿阔叶林内苔藓植物作了调查.依据野外样方资料,作者对林内66种苔藓植物的频度和盖度作了统计.百山祖常绿阔叶林内苔藓植物的区系成分丰富,以热带-亚热带成分为主.苔藓植物群落类型复杂多样,尤以腐木群落和树干群落最为丰富,并有一定数量的叶附生群落,反映了我国东部常绿阔叶林的自然特色.     

关帝山林区油松天然林生长规律的研究

研究关帝山林区不同立地条件油松天然林的生长过程，探讨其生长规律。进而为大面积营林，提高油松林生产力提供有力的理论依据。通过在关帝山林区采用建立标准地，选取优势木，进行树干解析的方法，对不同立地条件下油松天然林的树高、胸径和材积的生长规律进行了分析研究。结果表明，不同的立地条件对林木生长有显著影响。     

帽儿山针叶林与针阔叶混交林土壤动物对比研究 I区系组成与特征

１９９２年５月时帽儿山相邻针叶林与针阔叶混交林土壤动物的调查，共获土壤动物１７６５８只，隶属于５门１０纲１７目，共５０个类群．本研究以人工针叶林与针阔叶混交森的土壤动物为研究对象，旨在探讨土壤动物在针叶纯林与针阔叶混交林不同林型下，在物质分解过程中的作用状况及活跃程度．研究结果表明，土壤动物在针阔叶混交林中的种类、数量、种类多样性等多项指标均大于针叶纯林．可见，针阔混交林较针叶纯林更有利于土壤动物的活动及森林的物质循环与转化．     

利用遥感技术调查六盘山涵养林

采用Landsat ETM 数据,进行区域1:5万比例尺的基础土地利用调查,通过影像处理、野外调查、解译、质量控制、结果分析几个步骤,得到六盘山地区水源涵养林的现状,说明退耕还林工作对六盘山及周边地区的生态、气候等环境因素的重要性。     

Pollen records of Holocene vegetation and climate changes in the Longzhong Basin of the Chinese Loess Plateau

Pollen records with an average time resolution of 20-200 years from Holocene loess sections at Dingxi, Qin'an, and other localities of Gansu Province reveal a detailed history of vegetation and climate changes in the western Loess Plateau. For most time of the Holocene, the landscape was dominated by grasslands or forest steppes. However, during the middle Holocene (7.5-5.8 ka BP), relatively dense forests developed, and the endemic vegetation flourished, suggesting a much warmer and more humid climate condition than the present. Superimposed upon this general pattern are several dry intervals marked by the episodic expansion of grasslands or forest steppe. Xeric vegetation expanded after 3.8 ka BP, indicating a trend towards dry conditions.     

树与森的边独立指标

讨论在给定阶数的树与森中，边独立指标的分布性质，证明了在ｎ阶树中的星图及Ｓ＾２ｎ－２分别具有最小及次最小的边独立指标；同时在ｎ阶树或森中，Ｐｎ及Ｔｎ分别具有最大及次最大的边独立指标。     

梵净山冷杉林的发现及其科学意义

冷杉属是北温带阴暗针叶林的建群种类 ,世界上共有 50余种。 2 0世纪 80年代中期 ,中国在亚热带陆续发现冷杉属植物 3种 ,是植物界的奇迹 ,其中贵州的梵净山冷杉 ,不但为残留的稀有种 ,并构成一定小面积的冷杉林 ,是为重大发现之一 ,也是迄今为止最后发现的一种冷杉及其形成的冷杉垂直带群落。梵净山冷杉林的发现对植物区系学 ,植物群落学 ,植被地理学 ,古生物学 ,古气候 ,冰川学等学科都有一定的科学意义     

Population structure and reproductive biology of the fiddler crab Uca urvillei (Brachyura: Ocypodidae) in Maputo Bay (south Mozambique)

Although fiddler crabs are among the main faunal components in mangrove habitats, few studies have described the population structure and reproduction of tropical species. Such information is important for understanding their life cycle and ecology. In this study, the population structure and reproduction of Uca urvillei were studied at Costa do Sol, a tropical mangrove forest in Maputo Bay, southern Mozambique. Ten 1.0‐m² squares were sampled during low tide periods, between January and December 2003. The population is characterized by normal size distributions, which are slightly skewed to the left. Males on average are larger than females. Males were more abundant than females and the monthly sex ratios were male‐biased. Juveniles were found year‐round but were less common in June and December. Both gonadosomatic index and frequency of ovigerous females showed that Uca urvillei breeds continuously with peaks in summer and a strong decrease in winter. Egg number was proportional to female size.