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金耀东 《内蒙古林业调查设计》2010,33(4)
集体林权制度改革是土地改革的进一步深化。林改后,农民获得真正的实惠。文章从林改中农民的地位和作用、农民的进一步需求角度入手,探讨林改与农民的关系,并对今后林改工作中如何确保农民利益提出几点建议。 相似文献
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邓梅 《内蒙古林业调查设计》2019,(2):69-71,92
近年来,随着集体林权制度改革不断深入,青海省具有青海特色的农民林业专业合作社新型林业经营主体得到迅速发展,有力地促进了林业增效、农民增收。但由于青海省农民林业专业合作社尚处于起步阶段,存在基础薄弱、经营规模小、管理粗放等问题。针对以上存在的问题,文章从农民林业专业合作社的发展现状、存在的问题出发,提出了进一步发展壮大农民林业专业合作社的对策建议。对今后农民林业专业合作社规范化建设具有现实指导意义。 相似文献
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运用非正式制度和交易费用概念,构建了农民竹业合作制度变迁的理论分析框架,以福建省二都村的竹业合作历程为案例进行实证分析,研究农民竹业合作制度的多样性及其制度变迁问题。研究认为,在非正式制度安排下,农民合作意识高,合作行为多样。但在信息服务和扶持缺失的制度环境下,农民自发组建运行竹业合作组织的交易费用高昂,削弱了农民竹业合作组织内生动力。只有当农民竹业合作组织内生的交易费用足够低,使得农民通过合作组织获得的预期总效用大于通过非正式制度合作获得的预期总效用时,农民竹业合作才会向正式制度变迁,自发组建运行合作组织。 相似文献
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8月18日,国家林业局发布《关于促进农民林业专业合作社发展的指导意见》,以规范农民林业专业合作社组织及其行为,促进农民林业专业合作社持续健康发展。 相似文献
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中国农业产业链培育是解决中国"三农问题",促进农业增效、农民增收的现实途径。农业产业链培育通过一、二、三产业联动发展增强农业的基础地位、提高农产品的比较利益,通过推动农民进入农业产业链而实现持续增收,通过培育农民合作经济组织提高农民的组织化程度来增强农民的主体地位。 相似文献
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指出了随着城乡一体化的推进,仪征市新型农民集中小区不断涌现,农民居住集中化的示范模式越来越成为现实,农民集中小区使用清洁能源已经刻不容缓。分析了农民集中小区发展现状,探讨了秸杆沼气推广的建议与措施。 相似文献
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敖汉旗四家子镇农民成立的葡萄协会,提供自我系列服务,推动了全旗葡萄生产的发展. 前些年,这个镇的几户农民自发地引进栽培葡萄.到1988年,全镇已有十几户农民栽了葡萄.可是,这些农民对葡萄栽培技术却是一知半解,有的投亲访友去学技术,有的还远到辽宁朝阳去学技术. 怎样让农民尽快掌握葡萄栽培技术,发展葡萄生产呢?镇农业站及时组织栽葡萄的农民成立了农民葡萄协会。当时,全镇栽葡萄的15位农民都是会员,他们选举栽葡萄较早、技术较高的两位农民当了会长。协会的章 相似文献
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We present a new approach for selecting seed sources of Eucalyptus to be grown on saline land. We evaluated our method using 22 seed sources, 11 tree-form species and 11 mallee-form species.
We found that the commonly used strategy of selecting seed sources on the basis of average productivity was inappropriate,
as average productivity was poorly correlated with the relationship between productivity and salinity that was actually observed.
Using our new approach, we categorized seed sources as salt-sensitive or salt-tolerant based on the strength of the observed
relationship between salinity and productivity. Seed sources defined as sensitive were associated with relatively large (−24.8
to −64.2%) productivity losses, while the changes in productivity for tolerant seed sources ranged from −17.1 to 10.5%. On
average, reductions in height due to increased salinity were about 30% greater for sensitive seed sources than tolerant ones,
although the effect was smaller for mallee-form and greater for tree-form seed sources. The difference between sensitive and
tolerant seed sources was similar after 1, 2 and 4 years of growth. 相似文献
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王珊子 《绿色中国(A版)》2006,(15):66-68
“民以食为天”,“人命关天”,这两句古话阐明了食品安全无以复加的重要性。实际上,食品安全的重要性还远不止于此,这个问题不仅关系到人的健康和生命,而且关系到经济发展、社会稳定,乃至公民对整个社会和政府的信心。 相似文献
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王珊子 《绿色中国(综合版)》2006,(8):66-68
“民以食为天”,“人命关天”,这两句古话阐明了食品安全无以复加的重要性。实际上,食品安全的重要性还远不止于此,这个问题不仅关系到人的健康和生命,而且关系到经济发展、社会稳定,乃至公民对整个社会和政府的信心。[编者按] 相似文献
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《Journal of Sustainable Forestry》2013,32(3-4):307-316
Concerns for maintaining biodiversity have led to the adoption of ecosystem management as the paradigm for federal land management. This approach will identify desired future conditions as the goal for management, based on ecological objectives for a given landscape. Some management efforts attempt to identify desired future conditions based on existing successional stages as defined by a classification of overstory vegetation types. Such an approach ignores most of the underlying ecological parameters of the landscape, and is inadequate for identifying past disturbance regimes and future successional pathways. An assessment of desired future conditions based on an ecological classification system is essential to overcome these inadequacies. The strategy proposed in this paper uses an appropriate ecological land classification, based on either ecological land types or habitat types, included in a broader hierarchical classification system. It also uses a vegetation map of existing overstory vegetation. These two maps are overlaid to generate polygons of ecological units that can then be used to create an ecosystem diversity matrix. Each polygon (stand) can be evaluated as to its composition and structure relative to its possible placement within the ecosystem diversity matrix through comparisons with historical ranges of variability. The overall ecosystem diversity matrix can then be examined in terms of the distribution of successional stages within each habitat type or ecological land type. The goal should be to maintain at least adequate ecological representation of all successional stages within each habitat type that occurred historically, based on past disturbance regimes. Adequate ecological representation is defined as sufficient size and distribution of inherent ecosystems to maintain viable populations of all endemic species dependent on these ecosystems. This approach can maintain and enhance regional biodiversity, but also maintain flexibility in land management options. 相似文献
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12个桃品种的花芽休眠需冷量和开花需热量 总被引:3,自引:0,他引:3
在浙西南地区研究12个桃品种花芽休眠需冷量和开花需热量生态指标.犹他模型测定结果显示:12个桃品种中,花芽休眠需冷量低的品种为春蜜、超红、中油11号、中油7号、中油4号,约为550~650 cu;其次是丽油5号、仓方早生、燕红、丽油3号、早凤凰,约为650~ 800 cu;需冷量高的品种为新川中岛和赤月,约为900~ 950cu.同一地区不同品种需热量差异较大,同一品种年际间差异相对较小.以生长度天模型试验结果表明:开花需热量低的品种为赤月和丽油3号,大约400 ~ 500 d·℃;其次是新川中岛,大约500~600 d·℃;春蜜、丽油5号、早凤凰、中油4号、中油7号、仓方早生和燕红大约600 ~ 700 d·℃;需热量较高的是中油11号和超红,约为700~800 d·℃.12个桃品种花芽休眠需冷量与开花需热量之间呈乘幂函数曲线显著负相关. 相似文献