我国烟草业改革之路

针对目前我国烟草行业发展中存在的经营管理体制不完善、行业整体技术水平较低、“两烟“市场基本饱和、入世后国际竞争加剧及社会舆论环境对烟草行业的发展压力加大等问题,提出了深化烟草行业体制改革,大力推进企业组织结构调整,建立和完善专卖制度下适应市场经济要求的烟草市场体系等改革发展思路。     

有关人造板建设项目投资控制的几点看法

强化人造板建设项目的投资控制,要求加强可行性研究的管理,纠正可研工作中存在的问题,提高可行性研究质量;同时,加强技术与经济的结合,以提高投资效益为中心,并根据“合理造价”的原则,通过调研和综合分析、比较,准确框定投资估算,为投资决策与强化投资控制提供科学依据。     

Adaptive conjoint analysis to determine perceived risk factors of farmers, veterinarians and AI technicians for introduction of BHV1 to dairy farms

A study was carried out to determine the possibility of a more-closed farming system for (Dutch) dairy farms. The objective of the study was to provide effective and economically profitable management advice for improving the animal-health status of farms. Management measures will only be successfully applied if supported by farmers and their advisors (such as veterinarians). Therefore, the perception of farmers and advisors of the importance of various risk factors for the introduction of diseases to a farm was determined by using bovine herpes virus type 1 (BHV1) as an example.

As part of the study, an evening-long workshop was organized and run thrice. In total, 49 farmers, veterinarians and AI technicians participated in these workshops. The computerized questionnaire technique was based on adaptive conjoint analysis (ACA). ACA has the advantage that participants can work with a large number of risk factors in a relatively short period of time. Another advantage of ACA (compared with standard questionnaires) is that the answers from each participant can be checked with regard to consistency with respect to the importance assigned to them. Data from participants with inconsistent responses can be excluded from further analyses. The results of the ACA interview were compared with the risk factors reported in the literature as being associated with BHV1 status (e.g. purchase of cattle, participation in cattle shows) and with farmers' actual management to prevent the introduction of diseases.

The workshop participants were all operating in the dairy sector and they seemed well aware of the risk of direct animal contacts for the introduction of BHV1. Farmers thought visitors to be more risky than did AI technicians and (especially) veterinarians. Farmers who purchased cattle or participated in cattle shows were of the opinion that the risks of direct animal contacts were more important than did farmers who were not involved in those practices. Farmers whose farms were BHV1-positive (and participated in cattle shows more often) thought the risk of participation smaller than did farmers with BHV1-negative farms.     

蚕茧价格变化规律及管理对策

对1992年以来我国蚕茧价格和蚕茧供求变化进行分析,研究蚕茧价格的波动规律以及蚕茧均衡价格产生的条件,提出蚕茧价格管理的构想与建议。     

京郊生态村可持续发展管理模式的探索 —以怀柔北宅村为例

以京郊生态村可持续发展管理模式研究为主体，对生态村建设的内涵及发展进行了回顾和分析。以怀柔区北宅村为具体实例，对北宅村实施生态村建设的措施以及为实现生态村建设的目标所进行的社会保障体系建设方面进行了研究和探讨。从而得出京郊生态村以集体经济为龙头，用科学的方法健全资产管理的法律监督机制，发挥组织体系的服务功能，加大农业教育投资，提高村民生活的整体水平，是实现可持续发展目标的途径之一。     

基于GIS的水文地质信息管理系统

本文结合当前流行的GIS技术,针对目前煤矿在水文地质资料管理中的实际情况,研究开发了水文地质信息管理系统。该系统应用SQL Server数据库和MAPGIS平台实现资料管理,对基于VC++6.0面向对象语言的水文地质信息管理数据库系统的数据库结构以及系统功能进行了描述,实现了对矿井水文地质资料的图文分析、统计计算和报表输出等功能。     

南方丘陵林下油用牡丹栽培与幼龄期管理关键技术

XIE Guo-quan(Henghe Office of Agriculture and Rural Affairs of Cixi, Cixi, Zhejiang 315318)     

佛山市城市绿化建设存在的问题及对策

对佛山市城市绿化进行实地调查,分析当前城市园林绿化设计、施工与养护管理中存在的问题,提出了应树立正确的城市绿化建设观念、强化植物空间的设计、选用乡土树种为基调树种、彰显本地特色等建议,为佛山市乃至华南地区的城市绿化建设提供参考。     

紫背金盘提取物对小菜蛾的作用研究

紫背金盘提取物对小菜蛾幼虫有拒食和生长发育抑制活性，以氯仿提取物活性为最高。饲喂处理幼虫出现脱肛，黑斑和畸形等缓慢症状，成虫的生殖过程受到影响，这种作用有利于压低田间种群数量。对多种杀虫剂产生抗性的小菜蛾品系对紫背金盘提取物没有抗性，因此，这种植物提取物可作为小菜蛾抗性治理的一条途径。     

休宁县毛竹林分现状分类及经营改造对策

在对 6 6块毛竹林分标准地调查实测的基础上 ,对休宁县毛竹的现状进行了分析 ,结果表明 ,休宁县毛竹林分可分成 3大类型 ,4种立地组合 ;毛竹林分存在以下问题 :经营粗放、立竹密度偏低、年龄结构不合理、大小年过于明显、植株分布不匀、经营目的不明等。对现实林分改造的建议 :(1)护笋养竹 ,保证适宜的立竹密度 ;(2 )提高经营集约度 ;(3)改善年龄结构、调整竹株分布 ;(4 )改大小年为花年 ;(5 )分类经营