我国橡胶林碳汇贸易潜力的实证分析

依据气候减缓项目选择可贸易的碳库,利用森林蓄积量扩展法,计算了2008年和2011年橡胶林碳汇量,进而以2011年为基期,测算了2015年我国橡胶林的碳汇贸易潜力。计算结果表明,到2015年,我国橡胶林碳汇贸易潜力为248.61万t,占现有碳储量的10.62%,碳汇量年均增长速度呈下降趋势,显示出我国橡胶林碳汇贸易潜力的后劲不足。最后提出了依靠内涵式增长途径来提升碳汇潜力的几点建议。     

Integrated management approaches for pink bollworm in the southwestern United States

The pink bollworm (PBW), Pectinophora gossypiella (Saunders) (Lepidoptera: Gelechiidae), is the key pest in cotton (Gossypium spp.) production areas in the southwestern United States and in many other cotton-producing areas of the world. The high costs of chemical control, continuing economic losses, secondary pest problems and environmental considerations suggest the need for ecologically oriented PBW management strategies. Extensive research has resulted in a broad array of monitoring, biological control, cultural, behavioural, genetic and host plant resistance methods that can serve as a base for the formulation of integrated PBW management systems. The life history characteristics of the PBW, in particular the high mobility of adults, indicate the need for combinations of selected integrated pest management (IPM) components implemented over large geographical areas. The areas involved present a wide range of PBW population densities, differences in cotton production methods and social and environmental considerations. The best option is tailor-made systems for targeted management areas with the selection of IPM components based on the PBW population density, crop production methods and economic feasibility. The unlikelihood of eradication indicates the need for long-term monitoring and programme maintenance following successful area-wide management. The success of area-wide PBW management is highly dependent on participation in the planning, site selection, implementation and assessment phases of the programme by all segments of the agricultural community. A highly effective extension--education communication programme is an essential component. Local uncoordinated efforts have not reduced the economic status of this pest in any area where it is an established pest. The potential long-term benefits of PBW population suppression on an area-wide basis appear to justify area-wide efforts in terms of reduced costs, more effective control, less environmental contamination and other peripheral problems associated with conventional control approaches.     

冬季养猪疫病防治措施创新研究

为了防止冬季猪生病,养殖管理者一定要做好日常防治工作。对于猪的疾病防治要全面开展,同时要重点关注一些疾病。笔者介绍冬季如何做好猪冠状病毒性腹泻的预防工作。     

环境温度检测与控制系统的研制

研制了一种以８０９８单片机和温度传感器ＡＤ５９０为核心,实现多点温度检测、报警和控制的系统,并讨论几种抗干扰措施．     

芋田斜纹夜蛾重发原因及防控措施

分析了近年来清流县芋田斜纹夜蛾重发原因,并针对其发生与危害特点,提出加强测报工作、开展农业防治、诱杀防治及化学防治等治理防控措施,以供参考。     

南宁市大棚早春越夏种植水果黄瓜的小气候评价与调控

对南宁市大棚小气候特征和水果黄瓜生长所需环境条件进行对比分析,结果表明,从水果黄瓜整个生长期来看,棚内光照强度不足,远低于其光饱和点,多云阴雨天气则更差;从播种至开花结果期,棚内平均昼温偏低;结瓜期棚内平均昼温偏高,平均夜温很高,4～9月棚内的平均夜温均在20℃以上,高出其最适夜温上限温度2.7～9.1℃,而且导致昼夜...     

川西北小麦主要病虫防治研究

】依据小麦疫情,确定主攻病虫,并优选出８个最佳药剂配方,在齐穗至初花期混配防治主要病虫,收到了防与治的双重显著效果。     

基于TCP/IP网络多媒体教室的建设与思考

随着网络技术的发展,网络型多媒体教室已经成为现代化教学的基本设施。网络型多媒体教室通过网络中控管理各种教学设备的实时工作状态,有效解决了多媒体教室设备的远程控制问题,从而实现多媒体教室的高效管理。     

机器人自动割草机的研究

自动机器人的主要目标是用最少的人为控制可靠地完成指定的任务。为了解决传统割草机工作效率低、消耗大量人力且安全性能不够稳定的问题,进行了机器人自动割草机的研究,用于花园或草地工作的机器人自动割草机,通过多传感系统和以单片机为主体的控制系统来满足要求。     

节水灌溉自动控制器的设计与研究

论述了一种自动化节水灌溉控制系统的硬件设计、外部连线及其使用功能。系统控制器以与8051完全兼容的GMS90L51单片机为核心,采用计算机分布式管理;系统有传感器自动闭环控制、手动／半手动控制、微机超控等多种工作方式;系统能够实现自动化灌溉,具有排水警示、实时时钟、历史数据查询、数据上传及双向通信等功能。