蕉林

绿了,芭蕉黄了,香蕉红了,美人蕉好一个蕉林的世界好一个蕉林的夏天绿了,芭蕉黄了,香蕉红了,美人蕉好一个蕉林的世界好一个蕉林的夏天绿了,芭蕉黄了,香蕉红了,美人蕉好一个蕉林的世界好一个蕉林的夏天绿了,芭蕉黄了,香蕉红了,美人蕉好一个蕉林的世界好一个蕉林的夏天绿了,芭蕉黄了,香蕉红了,美人蕉好一个蕉林的世界好一个蕉林的夏天绿了,芭蕉黄了,香蕉红了,美人蕉好一个蕉林的世界好一个蕉林的夏天蕉林@朱建武~~     

清洁生产在啤酒厂的推广和应用

通过清洁生产工作,提高了企业及员工对清洁生产审核的认识,审核了研究对象有关单元操作、原材料、产品、用水、能源和废物的资料。确定了废弃物的来源、数量及类型,并根据审核结果制定了废弃物消减的目标,制定了经济有效的废物控制对策。从而提高了企业管理水平,提高了原材料、水、能源的使用效率,降低了成本,减少了污染物的产生及排放量。提高了员工素质,促进了企业技术进步,为企业带来一定的经济、环境和社会效益,为其他企业提供了范例。     

生物质锅炉发展的思考

指出了近年来生物质锅炉在我国部分行业中得到了应用,并取得了不错的效果:节约了大量能源、保护了自然环境.介绍了生物质锅炉的含义及其生产排污情况,分析了对其推广和使用的意义,对生物质锅炉使用过程中存在的问题及未来发展趋势进行了深入探讨.     

适应新形势 采取新举措 全面推进森林资源监测工作再上新水平——在2003年国家林业局直属院森林资源监测工作座谈会上的讲话

同志们 :这次直属院森林资源监测工作座谈会是经局领导同意召开的 ,充分体现了国家林业局对直属院工作和森林资源监测工作的重视和关心。经过一天半的讨论 ,大家献计献策 ,共商发展大计 ,会议取得了显著的成效 ,达到了预期效果。这次会议一是交流了情况 ,总结了经验 ,起到了相互学习、相互借鉴的作用 ;二是统一了思想 ,明确了主题 ,进一步坚定了做好森林资源监测工作的信心 ;三是理清了问题 ,研究了对策 ,探讨了森林资源监测工作的发展思路 ;四是讨论了各项核 (调 )查以及连清汇总方案 ,修改了办法 ,完善了核 (调 )查的内容。尤其是计资司、…     

在厅直属单位组织人事工作座谈会上的讲话

为期一天的斤直属单位组织人事工作座谈会，现在就要结束了。会上，斤直属单位就近年来的组织人事工作作了汇报，智华同志对人事教育处两年来的工作进行了总结回顾，分析了存在的问题，提出了今后工作的建议和打算，我完全同意。这次会议时间虽短，内容丰富，总结了工作，交流了经验，提出了建议，畅谈了设想，达到了预期的目的。下面，我讲三个问题：     

枫香次生林改造的研究

对枫香次生林改造进行了为期4 a的研究结果表明:枫香次生林改造改善了林木生长的环境,有效利用了林地,促进了林木的生长,提高了林分的价值,获得了良好的经济效益。     

应该建立我国科技情报宣传系统

近年来,我国科技情报工作有了可喜的进展,疏通了搜集科技情报的各种渠道,整理、译编了大量的科技文献,公开出版了几千种科技期刊,科技小报,各情报机构花了很大精力进行了国内外文献的检索(包括机检和手检),编辑出版了各类检索刊物和建立了其它检索工具,并正在建立全国性检索系统。     

合浦林业局整顿机关作风见效快

今年以来，合浦县林业局根据区、市、县关于整顿机关作风的指示，有的放矢地全面整顿机关作风，收到了“五少五多”的良好效果。一是上班迟到早退的人少了，严守纪律的人多了；二是工作推波扯皮的人少了，办事讲效率的人多了；三是私事用公车的人少了，公事不用车的人多了；四是议论人和事的杂音少了，思想行动统一多了；五是公务开支少了，遵守廉政建设制度多了。合浦林业局整顿机关作风见效快@石帷宏     

春风化雨润我心--浙江归来思发展

按照省人事厅的安排,从10月10日至30日在浙江省行政学院参加了由人事部举办的“浙江·陕西公务员人事管理与人力资源开发对口培训班”的学习。充实了思想、丰富了知识,开阔了视野,更新了观念,明晰了发展思路,增强了危机意识,坚定了发展信心。     

大气污染治理形势及问题分析

指出了在很长的一段时间内,我国以破坏生态环境做为代价,虽然促进了我国经济的快速发展。但是导致了我国的环境受到了严重的污染。从大气污染治理形势及问题进行了详细探讨,分析了在治理大气污染时存在的问题,根据原因,提出了科学合理的解决方案。     

Cambial Anatomy and Annual Rhythm of Secondary Xylem Development in the Twigs of Azadirachta indica A. Juss. (Meliaceae) Growing in Different Forests of Gujarat State

Abstract

Seasonal behavior of vascular cambium and development of secondary xylem were studied in the 2-3-years-old branches of Azadirachta indica A. Juss. (Meliaceae) growing in moist deciduous (MDF), dry deciduous (DDF) and scrub land (SF) forests of Gujarat State. Development of xylem began with the sprouting of new leaves in January in both MDF and DDF. Xylem production culminated in July in MDF whereas it reached peak in April and July in DDF. Cambial cells ceased to divide with the maturation of leaves in November and October in MDF and DDF, respectively. Mature xylem and phloem derivatives surrounded the cambium in December in MDF and November in DDF. Radial growth in the branches of trees growing in SF was found continuous throughout the year with peak cambial activity in April, July and November. In all the three forests, maximal radial growth was encountered in July when the rains were heavy. Cambial activity and xylem development showed significant correlation with the phenology of the trees in MDF and DDF whereas cambium was found active throughout the year and no correlation was found between the cambial activity and phenology in SF.     

日本落叶松种子园优良家系球花分布规律及花量调查

对日本落叶松种子园优良家系雌雄球花数量及在树冠上的分布规律进行调查分析。结果表明:日本落叶松雄球花在树冠垂直方向上分布差异极显著,下层和中层的数量显著多于上层,所占比例为83.39%,水平方向上南面的雄球花多于其他方向;雌球花在树冠不同冠层的分布无显著差异,中、上层的雌球花数量比下层多,东、南方向多于西、北方向;雄球花多着生在2,3 a生枝上,雌球花多着生在3,4 a生枝上,1 a生枝条上无花;不同无性系间雌雄球花数量差异显著,356号无性系的雌雄球花数量均为最多。     

落叶松人工林土壤腐殖物质组分及其对酸度的影响

对落叶松人工纯林不同发育阶段幼龄林、中龄林、近熟林、成熟林及二代幼龄林土壤腐殖物质组分变化及其对酸度的影响进行研究,以次生林和一代幼龄林为对照,比较不同发育阶段落叶松人工林与天然次生林、一代幼龄林与二代幼龄林土壤有机质含量、腐殖物质组分特征的差异.结果表明:落叶松人工林从幼龄林到近熟林根际与非根际土壤有机质含量、胡敏酸含碳量、胡敏素含碳量随林龄的增大而增大;近熟林到成熟林根际与非根际土壤有机质含量、富啡酸含碳量和胡敏素含碳量随着林龄的增大而降低;土壤腐殖化程度(土壤中胡敏酸占全C的百分比)和土壤腐殖质中胡敏酸含碳量与富啡酸含碳量比值(HA/FA)为次生林大于幼龄林和近熟林;二代幼龄林与一代幼龄林相比,根际土壤有机质含量、富啡酸含碳量和胡敏素含碳量分别降低4.53%、35.8%和1.98%,非根际土壤有机质含量、胡敏酸含碳量、富啡酸含碳量和胡敏素含碳量分别提高46.44%、43.69%、47.45%和49.5%;土壤腐殖物质组分与酸度的相关关系随着年龄的变化而变化,并且不同发育阶段根际土壤腐殖物质组分与根际土壤活性酸(pH值)、交换性酸、水解性酸相关性密切.     

九寨沟中华松针蚧生物学特性研究

中华松针蚧Sonsaucoccus sinensis (Chen)在九寨沟主要危害油松,也危害其他松类。该虫1 a发生1代,主要以2龄若虫在松针上越冬;3月下旬雄若虫老熟,出壳结茧化蛹,5月上旬成虫羽化交配,6月上旬开始产卵,6月下旬若虫孵化,发育至2龄于10月下旬开始越冬。年发生动态分越冬代为害、初孵若虫为害和虫口自然消减3个时期;发生为害程度与温度、湿度、海拔、坡向等环境因子密切相关。     

Do vegetative and reproductive phenophases of deciduous tropical spe-cies respond similarly to rainfall pulses?

Deciduous trees with high-density wood that occur in dry seasonal tropical regions respond to rainfall seasonality with synchrony in phenophases. However, they may exhibit interannual differences in sy...     

阔叶红松混交林不同大小林隙土壤含水量的时空异质性

在小兴安岭阔叶红松(Pinus koraiensis)混交林林隙及其周围郁闭林分内,通过网格法布点,于2010年7—9月使用TDR200测定中、小林隙I III层的土壤含水量。运用经典统计学和地统计学方法分析各土层土壤含水量的基本特征及同一林隙各样点土壤含水量的差异性,利用surfer 8.0软件进行克立格空间局部插值,并绘制各土层土壤含水量空间分布图,分析林隙土壤含水量的时空异质性。结果表明:中、小林隙I III土层土壤含水量均呈中等程度变异。随着土层深度的增加,土壤含水量提高,土壤含水量的斑块连接度增大。土壤含水量最大值出现在林隙中心和近中心区域,并呈现出随土层深度增加面积扩大并向中心靠拢的变化趋势;土壤含水量最小值出现在扩展林隙及其郁闭林分内。中、小林隙中心与边缘土壤含水量的差异均为II层较I和III层大。7—9月土壤含水量均值呈单峰型变化,最大值出现在8月,且中林隙土壤含水量较小林隙的大;9月I和II层土壤含水量较8月大幅度减小,但III层与8月相比差异较小。     

Variation in stem-growth and branch-wood traits among provenances of Calycophyllum spruceanum Benth. from the Peruvian Amazon

Calycophyllum spruceanum Benth. is an important tree for timber, charcoal and firewood in the Peruvian Amazon. The first provenance trial was established on farms in three zones located in one watershed in the Peruvian Amazon. The three zones differ in soil fertility and rainfall. Seven provenances from the Peruvian Amazon were tested in all three zones. Variation in four stem-growth traits (height, diameter, number of nodes and branches) and two branch-wood traits (basic density, heat content) was analyzed 18 months after establishment. There were significant differences in stem height and number of stem nodes among provenances in the analysis across zones. Provenance-related variation in stem-growth traits was most significant in the zone with the most fertile soils and highest rainfall. Branch-wood traits did not vary significantly among provenances in the analysis across zones or within zones. Branch-wood heat content was correlated with latitude, increasing from north to south, but this was only observed in a zone with low soil fertility and intermediate rainfall. Branch-wood density was correlated positively with stem diameter in the driest zone, but negatively with stem nodes in the intermediate zone and with stem height in the wettest zone. Results illustrate the potential for selection of fast-growing provenances, and the importance of replicating trials on different test environments to detect variation among provenances.     

西藏色季拉山冷杉树冠营养元素的分布特征

2001年10月15日至25日在色季拉山生态系统定位站原始冷杉林,采用标准地调查取样与实验室分析,测定了其优势树种急尖长苞冷杉林冠的养分,结果表明:1年生叶片养分总含量是多年生叶片的1.12倍;叶片在树冠阳面养分总含量高于阴面;林冠的不同高度叶片的养分含量不同;同一枝条不同部位的叶片在养分含量上也有一些差异.枝条与叶片有着相似的养分含量分布规律,这种一致性说明在养分的分配、积累过程中,枝条和叶片对养分的利用是同步的.     

Boron in forest trees and forest ecosystems

This review critically examines the role of boron (B) in forests in view of recent findings on B nutrition and the continuing occurrence of B deficiency. Many perceptions about the role of B in plants and its uptake and mobility have been altered since the last review on B in forest trees in 1990. Now there is evidence for a fundamental role of B in the formation of the pectic structure in primary cell walls in plants, and further roles in membrane function are being explored. In plants, channel-mediated B uptake, active B uptake and B uptake by mycorrhizas have been shown, B transporters have been identified, and B retranslocation has been shown. We explore these findings and their consequences on forest trees and on ecosystems that they dominate. Particular emphasis is placed on B retranslocation and B in mycorrhizal symbiosis, given their importance in trees.     

The inhibitory effects of Gelam honey and its extracts on nitric oxide and prostaglandin E2 in inflammatory tissues

We investigated the effects of honey and its methanol and ethyl acetate extracts on inflammation in animal models. Rats’ paws were induced with carrageenan in the non-immune inflammatory and nociceptive model, and lipopolysaccharide (LPS) in the immune inflammatory model. Honey and its extracts were able to inhibit edema and pain in inflammatory tissues as well as showing potent inhibitory activities against NO and PGE₂ in both models. The decrease in edema and pain correlates with the inhibition of NO and PGE₂. Phenolic compounds have been implicated in the inhibitory activities. Honey is potentially useful in the treatment of inflammatory conditions.