浅析海洋管理理事会对海洋渔业的认证

世界渔业资源状况持续得不到有效改善,养护问题日益成为全球关注的热点之一。在此背景下,非政府组织通过对渔业认证,引导消费者的购买行为,以鼓励渔业的养护与可持续利用。作为一种非政府组织,海洋管理理事会自成立以来逐步形成了一套相对完善的认证体系。研究分析,近年来海洋管理理事会认证的渔业数量大幅度增加,已达近120个,未来还将继续增加;从数量上看,海洋管理理事会认证在发达国家认可度越来越高;但对已经衰退的渔业以及数据不充分的渔业、底拖网渔业等认证方面,海洋管理理事会仍需改善。对我国而言,国内渔业不可能申请海洋管理理事会认证,但其认证标准可为国内渔业管理提供参考。从事公海生产的远洋渔业企业,如我国金枪鱼公司,则可通过申请海洋管理理事会认证以进一步拓展和巩固发达国家市场。     

An Exploratory,Post-Harvest Comparison of Ecological and Economic Characteristics of Forest Stewardship Council Certified and Uncertified Northern Hardwood Stands∗

ABSTRACT

As more forest entities worldwide consider pursuing Forest Stewardship Council (FSC) certification, a critical question remains on whether stand-level management impacts differ between certified and uncertified forests. To begin to answer this question, we measured forest structure on three FSC-certified stands, three uncertified stands, and six adjacent unharvested reference stands (12 stands total) composed primarily of sugar maple (Acer saccharum) on non-industrial private properties in central Vermont, USA. The certified and uncertified partial harvests reduced total tree biomass and live tree carbon storage by one-third compared to reconstructed pre-harvest conditions. Both treatments also contained significantly lower densities of saplings and some mid-size trees compared to non-harvested references due to similar impacts from harvesting. The net present value of merchantable sugar maple over 10 year projections was consistently lower on certified than uncertified stands, but this difference was insignificant at discount rates from 4–8%. The certified stands contained significantly greater total residual volumes of coarse woody debris (standing and downed) than uncertified stands, although the debris was smaller than that found in unmanaged mature forests. Overall, our data suggest that FSC-certified harvested stands in northern hardwood forests have similar sugar maple timber value, aboveground live tree carbon storage value, similar live tree structure, and greater residual coarse woody debris than uncertified harvested stands.     

Estimating aboveground biomass in forest and oil palm plantation in Sabah, Malaysian Borneo using ALOS PALSAR data

Conversion of tropical forests to oil palm plantations in Malaysia and Indonesia has resulted in large-scale environmental degradation, loss of biodiversity and significant carbon emissions. For both countries to participate in the United Nation’s REDD (Reduced Emission from Deforestation and Degradation) mechanism, assessment of forest carbon stocks, including the estimated loss in carbon from conversion to plantation, is needed. In this study, we use a combination of field and remote sensing data to quantify both the magnitude and the geographical distribution of carbon stock in forests and timber plantations, in Sabah, Malaysia, which has been the site of significant expansion of oil palm cultivation over the last two decades. Forest structure data from 129 ha of research and inventory plots were used at different spatial scales to discriminate forest biomass across degradation levels. Field data was integrated with ALOS PALSAR (Advanced Land-Observing Satellite Phased Array L-band Synthetic Aperture Radar) imagery to both discriminate oil palm plantation from forest stands, with an accuracy of 97.0% (κ = 0.64) and predict AGB using regression analysis of HV-polarized PALSAR data (R² = 0.63, p < .001). Direct estimation of AGB from simple regression models was sensitive to both environmental conditions and forest structure. Precipitation effect on the backscatter data changed the HV prediction of AGB significantly (R² = 0.21, p < .001), and scattering from large leaves of mature palm trees significantly impeded the use of a single HV-based model for predicting AGB in palm oil plantations. Multi-temporal SAR data and algorithms based on forest types are suggested to improve the ability of a sensor similar to ALOS PALSAR for accurately mapping and monitoring forest biomass, now that the ALOS PALSAR sensor is no longer operational.     

美国地区渔业管理委员会的决策机制探究

随着200海里渔业管辖权的主张得到了第三世界国家的广泛支持,迫于世界形势的发展,1976年美国宣布建立200海里渔业保护区,因渔业管理所需,遂在其沿海3~200海里内建立了8个地区渔业管理委员会。地区渔业管理委员会属于半官方机构,其成员主要是在渔业保护和管理、商业性或娱乐性捕捞方面具有丰富科学知识和实践的个人。该机构的建立,使得美国的渔业管理由政府管理为主的管理模式转向由政府和渔业利益相关者团体共同协商、共同参与的管理模式。本文对地区渔业管理委员会建立的历史背景、职能、组织和决策程序进行分析,并对其渔业决策方式进行探讨,最后根据我国实际情况进行讨论,提出我国应从建立科学规范的渔业决策程序、健全渔业决策科学支撑机制、建立保障公众参与渔业决策的途径这几个方面切实改进我国渔业管理决策机制。     

Screening of fungicides for the management of wattle rust (Uromycladium acaciae) in Acacia mearnsii plantations,South Africa

South Africa has c. 110 000 ha planted to Acacia mearnsii (black wattle) with 85% of the revenue from the species obtained from the timber and 15% from the bark. From 2012/13 a wattle rust disease has spread throughout the black wattle plantation area in KwaZulu-Natal and from 2015 it was recorded in southern Mpumalanga. The pathogen affects trees of all age classes, causing a reduction in growth, as well as mortality with severe infection. No fungicides are currently registered in South Africa for the control of wattle rust. In October/November 2014, three black wattle trials were initiated in the KwaZulu-Natal Midlands and south-eastern Mpumulanga where fungicides were tested at varying rates for the control of wattle rust. The same trial design was used for all three trials and consisted of a 3 × 3 factorial with one additional control, replicated three times and laid out as a randomised complete block design. The factorial combination consisted of three fungicides (azoxystrobin + difenoconazole; azoxystrobin + cyproconazole; azoxystrobin) applied at three rates (×, 2× and ½ ×). The additional control was not treated with fungicides. Wattle rust had a significant and negative impact on tree growth, irrespective of site and/or previous infection. All fungicides tested, and at all rates applied, proved effective for the control of wattle rust. The optimum rate selected, timing and frequency of application will be based on a combination of prevention of resistance as well as optimisation of growth. For the most effective control of wattle rust, fungicides should be applied as a preventative, rather than corrective, measure. However, in cases of severe infestation, a corrective application could also be used to aid the management of wattle rust.     

Certification Mechanism for Sustainable Forest Management and Its Progress in China and Abroad

The paper elaborates in details certification mechanism for sustainableforest management, including the definition, contents, objectives, costs, benefits, characteristics, procedures and impacts of certification as well as main certification systems. It also introduces in details the latest progress and development perspectives of certification in China and around the world. Certification is a market-based mechanism, which aims at enhancing and strengthening the reasonable utilization offorests. It usually consists of certification for sustainable forest management and certification of COC. Certification costs, including direct costs and indirect costs, but also benefits, which depends on the level of certification outputs. Internationally recognized FSC certification has been widely developed around the world, and a number of international organizations such as the WB and WWF etc are also promoting the process of FSC certification. Certification has bright perspectives of development around the world,     

江苏省公办涉农高职院校理事会建设及成效的现实考察

介绍了江苏省公办涉农高职院校理事会建设的现状,认为江苏省涉农高职院校理事会的建设进一步密切了与政行企社的联系,提升了高职院校的社会服务能力,形成了产教融合的校企长效合作机制。针对完善推进江苏省公办涉农高职院校理事会建设提出相关建议,主张尽快按照大学章程推进设定理事会落地实施,从事业单位法人治理的高度探索理事会制度建设。     

一起未查验采购饲料原料案的查处思考

2016年,甘肃省凉州区农牧局对一起不遵守国务院行政主管部门规定未对采购的饲料原料、饲料添加剂、药物性饲料添加剂查验案进行了立案查处。本文通过对案件查处过程中的案件定性、证据搜集、违法对象锁定等情况进行讨论,提出了理顺因果关系,锁定违法行为,突出检验检测,源头涉案企业查处的监管思考,为切实加强饲料生产企业监管,规范饲料生产企业生产行为提供参考。     

Barriers to biodiversity conservation in marine fishery certification

Two global certification and ecolabelling systems – the generic global dolphin‐safe ecolabel and the global Marine Stewardship Council (MSC) ecolabel – are assessed for their present and potential contributions to improving biodiversity conservation in marine capture fisheries. The dolphin‐safe ecolabel appears to have played a minor role in a reduction of dolphin mortality in tuna fisheries, but dolphin populations in the worst‐affected area have not recovered, and it appears that the current level of dolphin by‐catch sanctioned by present‐day fishery management and the ecolabel is not effective enough to achieve population recovery. The MSC ecolabel has established a poorly expressed environmental standard that has resulted in variable interpretations by certifiers, creating an apparently systematic bias in application of the standard to the certified fisheries. Without substantial revision of both these systems, it seems unlikely that they will be able to make major contributions to marine biodiversity conservation because of barriers created by limitations in programme design, lack of robust linkages between the certification standard and biodiversity conservation outcomes, and unclear standards and their inconsistent application in the certification of fisheries.