基于JAVA的WebGIS森林资源信息管理方法探讨

比较WebGIS 5种实现方式的优劣,并给出基于Java技术的WebGIS框架,讨论了WebGIS在森林资源管理中的应用。     

中国马鹿(Cervus elaphus)新疆三个亚种的研究现状及展望

马鹿(Cervus elaphus)是国家二级保护动物,是重要的经济动物.我国马鹿资源丰富,分布在新疆的有塔里木亚种(C.e. yarkandensis)、阿勒泰亚种(C.e.sibiricus) 和天山亚种(C.e.songaricus)三个.近年来随着当地人口数量的增加,使马鹿栖息地的破碎化程度不断加剧、面积不断缩减、环境质量不断下降,严重影响了该地区的马鹿生存条件、种群结构、营养状况乃至遗传组成等,使之在生理、行为和遗传等方面发生了一系列的适应特征.根据文献资料系统的总结有关新疆马鹿各个方面的研究,提出未来的各种研究问题,为了有效的保护和利用新疆马鹿资源提供科学依据.     

基于ArcGIS的林地面积精确分割方法研究

以ArcGIS 10.2.2浮动版为平台,结合实例阐述在宗地结构中用宗地编辑器分割宗地,从宗地结构中导出图层,将图层和从宗地结构中导出的图层加载到ArcMap内容列表中,在ArcMap内容列表中用裁剪面工具捕捉导出图层的端点、折点分割图层,实现林地面积精确分割。认为该方法在林业工作中是一种实用的方法。     

Use of haloperidol and azaperone for stress control in roe deer (Capreolus capreolus) captured by means of drive-nets

The physical capture of wild ungulates is performed for different purposes when anaesthesia in field conditions is not possible or advisable. The use of tranquilizers may contribute to improved welfare of captured animals. We studied the effect of haloperidol and azaperone on the stress response of roe deer (Capreolus capreolus) through the study of physiological, haematological and serum biochemical parameters. Thirty one roe deer were drive-net captured and randomly injected with haloperidol (0.30 ± 0.04 mg/kg IM; n = 13), azaperone (0.43 ± 0.07 mg/kg IM; n = 11) or saline (0.5 mL IM; n = 7), and restrained for 3 h. The interindividual variability of heart rate was lower in the treated deer, suggesting a calming effect, and erythrocyte and biochemical parameters indicated vasodilation, splenic sequestration, hemodilution, improvement of renal perfusion and a protective effect on muscle. These results support the suitability of using either azaperone or haloperidol in capture operations of roe deer, in order to reduce stress and prevent its adverse effects.     

基于空间Logistic的山西省火灾风险评价与火险区划

利用山西省2002-2012年MODIS卫星遥感数据,建立了描述火灾空间分布及其影响因子的空间Logistic风险模型,从省域空间尺度和较长时间尺度上,开展火险评价与火险区划研究。结果表明,通过空间采样构建的Logistic火灾风险模型拟合效果很好。在显著性水平为0.05的情况下,通过模型系数检验和Wald检验,相对运行特征值(ROC)为0.757。经图层运算得到火烧概率分布图,并将山西省分为无火险区、低火险区、中火险区、高火险区和极高火险区。对山西省火灾风险空间变化影响较为显著的因子为高程(GC)、土地利用类型(LT)、地表温度(LST)、归一化差值植被指数(NDVI)和全球植被湿度指数(GVMI),对火灾风险空间变化影响不显著的因子则仅有坡度(PD)和道路可达性(DL)。NDVI和LST对火灾影响在省内全局显著,而GC、LT和GVMI仅对省内部分地区的火灾影响显著。山西省按火灾影响因素可划分为7类区域,不同类型区域应确定不同的防火重点,制定差别化的防火策略。     

Severe alopecia due to demodicosis in roe deer (Capreolus capreolus) in Belgium

Demodex mites are part of the normal fauna of hair follicles of many, if not all, healthy mammal species. Normally these parasites live in harmony with their host, however in states of putative immunosuppression the acarids undergo excessive proliferation and cause clinical disease, which may be localised or generalised. This paper describes four cases of demodicosis in roe deer (Capreolus capreolus) with localised to generalised alopecia.     

草坪与稀树草坪生态作用的比较分析

草坪和稀树草坪是城市绿地生态系统的重要组成部分。但是它们的生态作用又有较大差异 ,通过对降低噪音 ,吸附灰尘 ,降低温度与增加湿度等生态作用的测定和定量分析 ,证明草坪和稀树草坪对城市生态系统的有利影响都明显高于裸地 ,稀树草坪的作用又明显高于单一的草坪     

Analysis of a survey of metabolic disorders

Extract

This survey was instigated in an endeavour to determine the overall incidence of metabolic disorders in dairying herds in the area covered by the Huntly District Veterinary Club. Response to treatment and mortality figures are also included.     

The leaf-litter earthworm fauna (Annelida: Oligochaeta) of forests in Limpopo Province,South Africa: diversity,communities and conservation

A qualitative survey of the leaf-litter earthworm fauna of 11 selected indigenous forests in Limpopo Province, South Africa, was conducted to identify the species present, to describe the communities and to assess the relationship between indigenous and exotic species. A total of 8185 individuals from 17 species (five indigenous and 12 exotic species) were recorded. The average earthworm community comprised fewer than five species, but up to seven species were sampled from a single forest. Four of the species recorded are national (one species), regional (one species) or local (two species) endemics. Because these species are not known to live elsewhere, the protection of Limpopo Province forests is critical to their survival. The majority (71%) of the earthworm species sampled was exotic, and differences between exotic and indigenous species richness in forests were mostly significant. At the two spatial scales examined (20 m2 and individual forest) there is no evidence of an association between exotic and indigenous species richness. However, we cannot assume that exotic earthworms do not impact the forest ecosystem.     

浙江省常见15个树种的光合特性

为比较不同树种对光的适应能力和耐荫性,探讨树种在植被恢复过程中的配置依据,利用Licor-6400便携式光合仪,于2010年秋季测定了苦槠Castanopsis sclerophylla,木荷Schima superba,杜英Elaeocarpus decipiens等15个浙江常见树种的光响应过程和光合日进程,并计算上述树种的光能利用率.研究结果表明:①所测15个树种的净光合速率日变化均呈单峰型,无“光合午休”现象.②东南石栎Lithocarpus harlandii,红豆杉Taxus chinensis,美丽胡枝子Lespedeza formosa分别是阔叶、针叶和灌木树种中光能利用率峰值较高的树种.③光饱和点苦槠最高,浙江楠Phoebe chekiongensis最低;光补偿点马尾松Pinusmassoniana最高,红豆杉最低.④对光补偿点和光饱和点进行聚类分析,认为马尾松,乌冈Quercus phillyraeoides,属于强阳性树种;苦槠,美丽胡枝子,水杉Metasequoia glyptostroboide,东南石栎归属于阳性树种;红花(槛)木Loropetalum chinense,红叶石楠Photinia×fraseri,杜英,乌桕Sapium sebiferum,木荷,石栎Lithocarpus glaber,竹柏Podocarpus nagi,红豆杉和浙江楠归类为耐荫树种,对弱光的利用能力较强.图5表1参16