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1.
农业是一个受自然资源和市场双重制约的弱质产业,南京农业产业化要想在激烈的市场竞争中取得成功,在土地等资源日趋紧张情况下提高劳动生产率,实现农业增效、农民增收,愈来愈取决于产业的科技含量和技术创新的程度。推进农业产业化经营,必须发挥南京的农业科技优势和相关的城市优势,提高农产品的市场竞争力,为农业产业化提供全方位的科技服务,用科技武装产业化的实施者,当好农业产业化宏观管理者的科技参谋,努力解决科技和农业产业化相结合上存在的有关问题等等。1 南京农业科技优势概述1-1 人才优势 南京有与农业和食品业…  相似文献   

2.
在评述农业产业化及其地域模式研究现状的基础上,以烟台市栖霞蛇窝泊果品专业产业化经营模式为例,分析论证了集聚-扩散机制在农业产业化地域模式形成中的作用及其对农业产业化经营实践的有益启示。  相似文献   

3.
<正>舒城县农产品精深加工产业科技发展要以推进农业供给侧结构改革为主线,以发展现代农业为抓手,把绿色优质农产品供给放在突出位置,狠抓农产品标准化生产,提高农产品综合生产能力,延伸产业链条,提高农产品附加值,提升科技含量,实现农民增收,走出一条"产业集聚、产出高效、产品安全、品牌高档"的科技发展之路。一、舒城县农产品精深加工产业科技发展现状近年来,舒城高度重视农产品精深加工产业发展,大力培育龙头企业,制定了一系列优惠扶持政策,如《舒城  相似文献   

4.
近年来,全国各地农业产业化经营发展较快,各种农产品蜂拥上市。但是随着农产品的不断丰富和受东南亚经济危机的冲击而导致市场的萎缩,我国的农产品市场已由卖方市场转向买方市场,粗放型、传统型的农产品逐渐滞销,这对于刚起步的农业产业化经营是个严峻的挑战,要使各地的农业产业化经营健康发展,出路何在?根据国内外农业产业化经营的经验教训和我们几年来的实践,注重提高农业产业化经营中的科技含量是我们的必然选择。一、农业产业化经营中提高科技含量的必然性和重要性农业产业化经营中的科技含量就是产业化过程各环节中诸如科学化…  相似文献   

5.
高新技术产业(特色)基地是以促进高新技术产业化为目标,以产业集群理论为基础、集群化发展为路径,充分发挥人才、技术、信息、资本和市场等要素的集聚优势,依托一批产业特色鲜明、产业关联度较大、技术水平较高、创新能力较强的高新技术企业而建立起来的具有竞争优势的特定产业区域,被业界称为没有围墙的高新技术园区。  相似文献   

6.
振兴东北老工业基地必须加快发展现代化农业   总被引:1,自引:0,他引:1  
长期以来,东北地区偏重型的工业结构、初级型的农业结构,以及工农、城乡之间的“双二元”结构,造成了工农业关联度的降低和互动机制的缺失。东北地区具有丰厚的农业资源和农产品规模优势,但长期得不到工业联动和支持,依托农产品原料的轻加工业落后,传统农业的规模优势弱化,致使农业产业化与社会化的进程缓慢,  相似文献   

7.
各地要根据苏州市现代农业发展的总体定位,按照每个市(区)都要建成1-2个具有一定规模的现代农业示范园区的总体要求,以基础设施投入为起点,生态建设为基础,高新科技为平台,招商引资为突破口,引进推广一批农业高新技术,吸引集聚一批产业化经营主体,培育壮大一批特色产业群,通过科学规划,合理开发,使园区逐步成为苏州市农业新品种的引繁中心,名特优农产品的生产基地,农业科技推广示范的窗口,三资开发的主战场,农业休闲观光的新胜地。  相似文献   

8.
农业产业化是我国农业走向现代化的必由之路。要解决"三农"问题,比较有效的方法是发展特色经济,加速农业产业化经营。其实质是为了拉长农业的产业链条,发展农产品精深加工,把企业经营引入农业领域,解决市场经济条件下农民面临的"小生产、大市场"的矛盾,以及种粮效益低下的状况,充分利用资金、技术、人才和市场的结合,激活本区域内的劳动力及土地等资源,使农业增效,农民增收。  相似文献   

9.
江西产业发展中的主要问题是工业化水平低、产业加工度不高、产业投资存在明显的逆比较优势、产业经济成分结构不合理,从而整体经济效益不高。江西产业发展的根本出路在于解放思想、开拓进取:实施农业产业化政策,提高农产品加工度;振兴江西工业,实施工业强省战略;大力发展第三产业,提高第三产业劳动生产率。  相似文献   

10.
长三角地区县域乡村类型划分与乡村性评价   总被引:2,自引:0,他引:2  
以长三角地区为例,首先划分出农业主导、工业主导、服务主导和均衡发展4种乡村发展类型;基于区域城乡一体的思想构建乡村性指数RI理论公式,对2000~2012年长三角地区乡村性及演变特征进行了探讨.研究结果表明:长三角地区农业主导、工业主导和服务主导的县域分别占总地域面积的13.79%、18.96%及12.06%,而均衡发展型的县域占到55.19%;农业型乡村分布在苏中、舟台地区,工业型乡村分布在苏锡常地区,而服务型乡村主要分布在宁甬杭地区;长三角县域RI总体上呈减弱趋势,乡村性空间格局与乡村类型划分具有较高关联性,苏中、舟台地区乡村发展农业主导,乡村性总体高值集聚,而苏锡常乡村发展工业主导,乡村性总体低值集聚,并且工业、服务主导型乡村性RI低于农业主导和均衡发展型;最后,提出未来长江三角洲地区乡村发展相关的重构建议.  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.  相似文献   

13.
王慧 《科技信息》2008,(10):240-240
Wuthering Heights, Emily Bronte's only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.  相似文献   

14.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

15.
The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3~4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰~ -7.8‰, PDB) and matrix dolomites (-6.6‰~ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084~0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078~0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.  相似文献   

16.
Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.  相似文献   

17.
以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.  相似文献   

18.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

19.
Quality traits in wheat (Triticum aestirum L.) were studied by quantitative trait locus (QTL) analysis in a recombinant inbred line (RIL) population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross (ChSh). Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.  相似文献   

20.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

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