论破坏林木资源案件侦查

破坏林木资源犯罪案件是破坏森林资源犯罪案件一个主要类型,此类案件是以林木为具体侵害对象,破坏行为形成的结果具有暴露性、可观察性和可识别性,这些特点决定了此类案件的侦查过程中证据调查的范围与内容、手段具有自身的侧重点。     

小陇山严坪林场林木种质资源现状与对策

通过对小陇山严坪林场林区林木种质资源普查,进一步调查摸清了种质种类、数量、分布及生长情况,全面反映了辖区种质资源现状;提出了林木种质资源的建议和对策。     

河南省商丘市林木种质资源类型和分布

林木种质资源是林业发展的基础,调查统计能够较全面地反映林木种质资源状况,为改良品种、选育优良品种提供基础资料,推动当地的林业建设和发展。野外调查结果表明:商丘市共调查种质资源GPS点436 736处,填写了30150张调查表,提交了147 818张图片,共发现84科、233属、671种、368品种;栽培利用资源类型最多,引进、选育优良品种两种资源类型数据较少。通过这次的林木种质资源调查,摸清了商丘市林木种质资源的种类及分布状况,掌握了重要的林木资源信息。这为建立完备的林木种质资源数据库,加大对各类林木种质资源的收集、开发和利用,实现商丘地区林业可持续发展奠定了基础。     

基于天空地一体化森林资源调查的小班因子设置与信息获取方法

为有效改善现行森林资源规划设计调查中存在的问题,提出并试验了天空地一体化森林资源调查监测新技术体系。此方法虽较传统方法缺少下木植被与天然更新、林分健康状况等需实地调查记录的因子,但仍能够较全面地反映小班林地和林木资源状况(类型、数量、质量和结构)及其所处自然环境条件,完全满足集体林区森林资源经营管理需要和森林资源报表的统计需要,并可满足各种相关应用对森林资源基础数据的需要;除小班基本属性(土地类型、优势树种、林木起源和伴生树种)需要逐一进行图像解译和少量实地补充调查外,新技术体系的其余各项调查因子均可通过编写计算机程序自动获取,这极大地减少了调查工作量、降低了劳动强度、提高了工作效率,并且质量可控,有效地保证了小班调查数据的可靠性,确保了森林资源调查成果质量。     

森林案件现场物证的发现与提取

现场物证,是指作案人在作案现场遗留的能够反映案件真实情况的物质材料和痕迹。发现与提取现场物证,是现场勘察的重要内容,也是进行物证检验的基础。在森林案件侦破中,切实做好这项工作,对我们正确分析判断案情、确定侦查范围、获取案件证据、排查嫌疑对象、认定案件事实等,均具有非常重要的意义。     

浅谈侦查人员的证据意识

众所周知,证据是查明案件事实的依据,侦查人员在办理刑事案件过程中通过对证据的发现、收集、审查和运用为侦查破案提供线索和依据,为成功的诉讼奠定基础.我们这里所说的证据意识是指侦查人员在办理刑事案件过程中,对证据作用及价值的一种知晓的心理状态,是刑事诉讼中重视并自觉运用证据的一种态度.     

浅谈侦查人员的证据意识

众所周知，证据是查明案件事实的依据，侦查人员在办理刑事案件过程中通过对证据的发现、收集、审查和运用为侦查破案提供线索和依据，为成功的诉讼奠定基础。我们这里所说的证据意识是指侦查人员在办理刑事案件过程中，对证据作用及价值的一种知晓的心理状态，是刑事诉讼中重视并自觉运用证据的一种态度。     

森林生长量的经济价值核算

森林资源调查设计常用的指标──森林生长量，在评价森林经营管理效果时，也常常被列为主要指标。通过森林生长量调查，可以为掌握森林资源动态提供基础数据。然而，迄今人们获得的森林生长量数据反映的仅仅是实物量的变化。实际上，森林年生长量是分布在整个林分的树干上，不仅使林分蓄积数量增加，而且使每株林木的树高和胸径改变，从而带来林木价值上的变化。因此，利用价值评价森林的蓄积和生长量，对正处于林业经济体制和经营机制改革的林业企业来说，将是非常必要的。 为便于实际生产者应用，可以采用下列公式核算森林的立木价值生长…     

龙岩市新罗区野生林木种质资源调查与研究

通过野生林木种质资源普查,全面掌握龙岩市新罗区野生林木种质资源的种类、分布、数量与生长状况。利用现有的资料查阅,开展野外线路调查、标准地调查等方法,对龙岩市新罗区的野生林木种质资源进行详细调查。共调查记录野生林木种质资源100科318属851种,其中裸子植物9科14属19种,被子植物91科304属832种。分析龙岩市新罗区野生林木种质资源的分布特点与现状,提出野生林木种质资源保护、开发和利用的建议。     

吉林省林木种质资源普查标准地设置与调查

标准地调查是吉林省林木种质资源普查的一项重要工作,是准确获取基础信息、掌握林木种质资源现状的主要手段。根据普查操作规程介绍了标准地设置要求和调查要点。     

余姚市古树名木资源变化原因分析及保护策略

为更好地保护和利用古树名木,对余姚市古树名木资源10年来的变化情况进行了调查分析。10年内,古树个体数量新增80株,减少47株,净增33株,两次调查均无名木,主要表现为古树在农村区域增加,在城市区域减少。树龄进界是古树数量增加的主要原因,而自然灾害则是造成古树减少的主要原因。基于此,对余姚地区古树名木的保护提出了建议。     

河南省古树名木资源调查分析

采用实地现场调查为主,结合访问当地群众的方法,以县(市、区)为单位,对河南省的古树名木进行了逐株普查.结果表明:河南省古树名木分布范围广,各市种类数和株数有较大差异.全省古树共计528457株,名木211株,古树群617个,其中,散生古树29917株,隶属61科、147属、236种,树龄为100～299a、300～49...     

深圳市龙岗区古树现状调查研究

在查阅历史资料的基础上,采用实地调查与走访当地群众相结合的方法,对深圳市龙岗区布吉、坂田、大鹏、横岗、葵涌、坑梓、龙城、龙岗、南澳、南湾、坪地、平湖、坪山13个街道的古树进行逐株调查。结果表明：龙岗区古树分布范围广,13个街道均有分布;种类数和株数有较大差异,古树主要分布在村前屋后的风水林中,部分以群落的形式存在。龙岗区有古树858株,隶属于25科45属52种,其中含5种及以上的科为桑科（Moraceae）和樟科（Lauraceae）,也是株数较多的2个科,各为351株和123株;榕树（Ficus microcarpa）、龙眼（Dimocarpus longan）和樟树（Cinnanomum camphora）植株较多,分别为331、99和95株;绝大多数古树为乡土树种,种数达到48种,其中三级古树818株、二级古树33株、一级古树7株。44．41％的古树生长旺盛,生长表现一般的古树占总株数的48．25％,生长较差的占总株数的7．34％。根据调查结果,对龙岗区古树的管理和保护提出了一些建议。     

Effects of harvesting on productivity of bay leaf tree （Cinnamomum tamala Nees ＆ Eberm）： Case from Udayapur district of Nepal

Cultivation of bay leaves （Cinnamomum tamalaNees ＆ Eberm） to fulfil household income needs is a long established practice in Udayapur district of Nepal. The practices adopted by farmers for bay leaf harvesting have not, however, been validated by scientific investigation for their sustainability. To investigate the impacts of harvesting on the yield of branch, leaves and biomass of leaves, a two-year research project was conducted in farm fields at Kopche village of Routa VDC in Udayapur district, Nepal. Four different harvesting treatments, the orien-tation and the order of branches were taken as independent variables to test their effects on number of branches, leaves and biomass of leaves. Orientation, harvesting treatments and order of branches had a significant effect on the number of branches, but not on the number of leaves or biomass （fresh and dry weight） of leaves in the year of harvest. Between two consecutive harvests there was no significant difference in the num-ber of branches, leaves or biomass. Lower two-thirds portion of the trees produced the largest number of leaves and branches of the fourth order in both years. Therefore, lower two-thirds portion of the trees were suitable for harvesting. Our findings support farmer experience that no change in productivity of leaves is observed when harvesting each year. For long term sustainability, harvesting should be conducted without debarking of trees or damage to branches. Our findings could be extrapolated to and tested in other areas with different access and user rights where the rota-tion for harvest is fixed or regulated without research evidence.     

对橡胶树不同品种实行新割制后存在状况的调查与思考

对云南景洪农场六作业区橡胶树RRIM600、PR107、GT1、云研1号等品种实行刺激割胶新割制后的存在状况进行调查,结果表明:胶树的病残株率随着割龄的增加而增高,在开割7年后现存株率、有效割株率及单位面积有效割株数随着树龄的增加而降低;RRIM600在所有割龄段中,相对于其它参试品种表现出较强的适应性,存株率、有效割株率及单位面积有效割株数明显较高、死皮明显较轻。研究提出应在更大范围去深入调查,再认识RRIM600的优良性状,作出新的评价,合理地应用于生产。     

伊川县古树名木现状调查及其保护管理措施

依据伊川县林业局古树名木普查建档调查成果,概述了伊川县古树名木的数量、种类、树龄、分布、生长等情况,结合伊川实际,对全县古树名木生存和保护中存在的问题,一树一策,提出了保护措施。     

Characteristics of hollow-bearing trees occupied by arboreal marsupials in the montane ash forests of the Central Highlands of Victoria, south-east Australia

A total of 1125 hollow-bearing trees was observed for the presence of arboreal marsupials in the montane ash forests of the Central Highlands of Victoria, south-east Australia. Different species of arboreal marsupials exhibited preferences for hollow-bearing trees with different characteristics. Gymnobelideus leadbeateri (Leadbeater's possum) selected short, fat trees with numerous holes and a large quantity of dense surrounding vegetation. Very large hollow-bearing trees were favoured as nest sites by Petauroides volans. Petaurus breviceps preferred trees with a large number of fissures, whereas trees favoured by Antechinus stuartii were tall and thin. Trees selected as nest sites by Trichosurus caninus were typically short and fat with few holes. Our results provide evidence of resource partitioning of hollow-bearing trees amongst arboreal marsupials. Clear-felling of montane ash forest on an 80–120-year rotation will have a highly detrimental effect on arboreal marsupials by substantially reducing the number and range of types of hollow-bearing trees required to support the complete diversity of species. The 80–120-year interval between logging operations will result in trees being harvested well before they develop characteristics which make them suitable nest sites for arboreal marsupials.     

武汉市黄陂区古树名木资源特征调查与保护建议

为了摸清武汉市黄陂区内古树名木的资源特征情况，采用资料查询、知情人走访、现场考察的方法，对黄陂区内古树名木的种类、数量、胸径、树龄、海拔分布等22项特征因子进行调查。结果表明：黄陂区总计拥有古树名木867株，包括26科36属40种，古树群落3处，其中：Ⅰ级古树30株，Ⅱ级古树71株，Ⅲ级古树766株；朴树最多，为269株，其次为枫香树150株，柿139株。古树名木资源的分布主要集中在木兰乡、王家河街、六指街、蔡家榨街、蔡店街、姚集街，不同区域的生长情况差别明显，祁家湾街、罗汉寺街的古树生长环境较差，不同树种海拔分布差异较大。     

Aggregation ofPlatypus quercivorus (Murayama) (Coleoptera: Platypodidae) on oak logs bored by males of the species

To provide evidence for the aggregation ofPlatypus quercivorus (Murayama) (Coleoptera: Platypodidae) in association with the mass mortality of oak trees in Japan, we compared the number of beetles attracted to oak logs bored by males with the number of beetles attracted to logs that had not been bored. Large numbers of males and females were attracted to the bored logs, and the total numbers increased as the number of entry holes in the logs increased. This result shows that both male and female beetles aggregate on logs bored by the males. We collected a large number of beetles attracted to living trees bored by the beetles, and the total number of beetles collected increased as the number of entry holes/m² on the tree trunk increased. Beetles also aggregated on living trees bored by the males.