金华江流域生态服务补偿的利益相关者分析

从影响程度、积极性、参与性、权力4个方面,对金华江流域生态服务补偿的利益相关者进行剖析。结果表明：核心利益相关者多属于弱势群体,他们的利益突出,却无决策和管理权,政府部门具有最大的决策权,在目前流域生态补偿过程中发挥重要作用;在此基础上,提出建立流域管理联席协会,促进利益激励机制的形成和多层反馈互动渠道的畅通,明晰上下游水权和生态补偿的责任义务关系,构建可操作的管理规则和立法、改革干部考核制度、扶植和培育流域的生态补偿市场等政策建议。     

农机服务专业户投资收益分析

农机服务专业户已经成为我国农机社会化服务的主力军,研究农机服务专业户投资收益对我国农机化发展具有重要意义.通过构造C-D生产函数,分析不同规模农机服务专业户各生产要素的投资报酬,并在此基础上针对农机购置成本这一农机户投资金额最大的生产要素进行投资收益分析,得出结论并给出相应建议.     

小黑山自然保护区森林生态系统服务功能及价值评估

以小黑山自然保护区的森林生态系统为研究对象,采用影子工程法、机会成本法、市场价值法等研究方法,对其生态系统服务功能的直接价值和间接价值进行了评估.结果表明,小黑山自然保护区的生态系统服务功能价值达10.52×108元/a,其中直接价值为5 406.89×104元/a,仅占服务功能总价值的5.14%,而间接价值高达99 825.04×104元/a,两者之比为1∶18.46.间接价值中大小顺序依次为:涵养水源水土保持维持生物多样性固碳释氧净化空气科研文化.小黑山自然保护区对维持当地社会经济可持续发展具有举足轻重的作用.     

A trait-based characterization of cover plants to assess their potential to provide a set of ecological services in banana cropping systems

Cover plants are one of the means to increase the functional biodiversity of fields and to enhance the ecological functions of the communities. However, the design of cropping systems including cover plants relies largely on expert knowledge. There is a lack of methods to select the best suited cover plants according to their role in the agrosystem. We propose to use functional traits to select cover plants suited to sustain ecological services in the banana agrosystems of the French West Indies. Our objectives were (i) to characterize a collection of cover plants on a trait basis, according to their potential to provide the services expected in a banana agrosystem and (ii) to discuss the potential use of this characterization for the design of innovative multi-species banana cropping systems. In these systems, four main services are targeted, i.e. controlling weeds, controlling plant-parasitic nematodes, improving soil fertility and particularly N availability, and avoiding competition with banana for resource acquisition. Three experiments were conducted, under field and controlled conditions, to evaluate the potential of a collection of 28 tropical cover plants to achieve the functions related to these services. For each cover plant, a functional profile was constructed from a combination of plant traits that are easy to assess experimentally. It described plants’ potential to achieve the functions expected in a banana agrosystem. Functional profiles required for cover plant usages were also identified. The comparison of the plant functional profiles and the functional profiles required for their usages enabled us to select the best suited plants for each usage. However, these functional profiles rarely corresponded, meaning that a cover plant is rarely sufficient to achieve all the functions required for a usage. Functional complementarities obtained by the mixture of different species of cover plants are thus often required. Compared to classical approaches of innovative cropping system design based on the experimental testing of spatial and temporal plant combinations, such a trait-based approach saves time by focusing on a shortlist of cover plants best suited according to their functions in the agrosystem.     

乡镇图书馆(室)要加强对农村读者的服务

本文通过对农村读者的调研 ,提出了农村读者读书难 ,以及他们对具体书刊的需求。着重要求乡镇图书馆加强对农村读者的服务 ,提高农村读者的文化素质。并针对实际提出解决问题的服务对策。     

用户需求与信息服务的变革与发展

本文通过对用户需求的个性化分析，指出了个性化信息服务产生的必然性；从而对网络环境下图书馆个性化信息服务进行了论述，探讨了图书馆的个性化信息服务实现的措施及对图书馆馆员的要求。     

云南省核桃产业发展现状及对策分析

核桃产业是云南省高原特色现代农业的重点产业和脱贫攻坚的支撑产业。分析云南省核桃产业发展现状,结果表明:云南省核桃产业发展较快,但存在粗放式经营管理,资金和技术投入不足,市场销售、质量标准和社会化服务体系不完善,深加工能力不足等诸多问题。在此基础上提出向集约化经营管理转变,加大资金与技术投入,完善云南省核桃地方标准体系,加强市场销售网络体系建设,加大核桃加工龙头企业扶持力度,建立健全社会化服务体系等核桃产业发展对策。     

图书馆业务外包发展的再探讨

随着社会化、信息化的发展,图书馆业务外包的层次不断深入、范围不断扩大,甚至出现图书馆整体外包的现象。这对图书馆的服务、管理、事业发展都带来了巨大的影响。文章主要针对这一发展趋势进行深入的分析讨论,并提出对策。     

走出高校图书馆读者服务的误区

检视高校图书馆读者服务工作的不足之处 ,目的在于统一认识 ,促进图书馆更好的为读者服务。     

新农村建设信息服务存在的问题及对策

分析当前我国农村信息服务的现状,提出了信息为新农村建设服务的思路。