加入WTO对反腐败斗争的影响及对策思考

加入世贸组织总体上对我国的反腐败斗争是有利的。但由于西方国家对我国进行外部渗透和影响的机会增多;我国经济、政治等体制改革的不彻底;入世初期的接轨工作难以到位;高智化、国际化、团伙化的犯罪特点;新一轮资产重组等原因，存在着腐败滋生蔓延的必然条件，新的腐败犯罪的高发期还可能出现。为此，我们要坚持依法治国，加强法律、法规建设，加快政治体制改革，强化办案职能，严肃查处各种腐败犯罪，加大对国有资产监管的力度，依法治权，依法行政，完善党内各项运行机制，从源头上预防和治理腐败;加强思想教育，提高党员干部素质，增强拒腐防变的能力，自觉抑制腐败;密切国际间的相互协调与合作，共同打击腐败。     

入世后我国农机化的环境与发展

加入WTO对于我国农业及其生产力水平重要标志的农业机械化来说，是风险与利益并存、挑战与机遇同在。因此把握好“入世”的机遇，努力创造有利于农业机械化发展的环境条件，迅速提高我国农业牛产力水平，是我国农机化发展的重要基础，也是奠定我国农业国际竞争力的重要基础．     

反渗透海水淡化用提升泵的设计

针对提升泵存在轴头力过大的问题,采用调整口环直径、前盖板加装辅助叶片、降低转速等方法进行轴向力平衡,对于2500 t/d反渗透海水淡化的提升泵,通过降低转速增加叶轮尺寸的方法来平衡轴向力使结构更趋合理.结合反渗透海水淡化的工艺流程,提出提升泵性能参数的确定方法.鉴于提升泵入口高压的运行环境,选择单级悬臂、双蜗壳、三推力轴承组合结构形式,采用较粗的轴径和较小的悬臂比,提高系统的稳定性.应用新型的上游泵送机械密封,通过100 h的运转试验,在较高的压力环境下运行,仍能保持良好的密封性能,且断面无接触,磨损量小,解决了高压环境下轴封反复失效的问题.     

Persistence and performance of esfenvalerate residues on broccoli

The efficacy of esfenvalerate (84 g litre-1 EC; Asana XL) at 7.0 g AI ha-1 on broccoli was tested against the flea beetle, Phyllotreta cruciferae Goeze (Chrysomelidae: Coleoptera) and the imported cabbage worm, Pieris rapae L (Pieridae: Lepidoptera) under field conditions. Insect populations were monitored before and after treatment. Periodic sweep-net collections and examination of the leaves in treated and untreated broccoli plots revealed mean reductions of P cruciferae levels of nearly 98% 1 week post-application compared with untreated plots. The residual toxicity of esfenvalerate was also effective for 2 weeks in reducing population density of P rapae by 69% on broccoli leaves. The impact of esfenvalerate on feeding damage to broccoli leaves was established by counting the number of feeding holes made by P cruciferae on spring broccoli and P rapae on fall broccoli. As the leaf area ingested increased, a linear relationship was seen between the number of holes and number of insects. Results indicated that forage destruction by the two pests was significantly reduced by esfenvalerate application. Esfenvalerate was extracted from broccoli at 1 h and 1, 3, 7, 10, and 14 days post-application for residue analysis. Residues on spring broccoli were 12.2, 5.2 and 2.9 micrograms cm-2 on the leaves and 0.13, 0.05 and 0.02 microgram g-1 on the heads at 1 h, 1 and 3 days, respectively. Only trace levels (0.001 microgram g-1) were detected in/on the heads 14 days after spraying. On the basis of half-life (T1/2) values, persistence of esfenvalerate on spring broccoli leaves (T1/2 = 1 day) was shorter than on fall broccoli (T1/2 = 1.6 days). T1/2 values were 2.1 and 3.6 days on spring and fall broccoli heads, respectively. The implications of these residue levels on re-entry times into treated fields are discussed.     

Tropical Timber Trade Flows in P.R. China

The historical transition of timber distribution pattern in China was presented firstly with main parts of timber flows in China, which included timber markets, timber transport system and regulations of timber transport. Based on the overview on tropical timber flows in China, the trade flows of tropical timber from production and imports of tropical timber to export of tropical timber products were analyzed by vivid illustrations. At the same time, problems in timber trade flows in China were analysed in the end.     

Determinants of equity-based entry mode choice in the forest sector: the case of China

The focus of foreign direct investment (FDI) in the global forest sector has shifted from developed to developing economies (currently accounting 73% of total) during the past two decades. China has been the main global driver with its annual FDI soaring from USD 130 million in 2002 to USD 550 million in 2010. In light of international economic and business theories, choice of foreign entry mode is considered the most critical issue in corporate expansion strategy, which, however, has not been empirically studied in the forest sector. To fill this gap, our paper focuses on modeling two equity-based entry mode choices (i.e. wholly owned subsidiary or joint ventures) of foreign investment projects in China based on data from 109 activities of the Top 100 forest, paper, and packaging industry companies. By using logistic modeling, the main determinants of corporate entry mode choice are found to be cultural and geographical distance between the corporate home country and China, duration of corporate presence in China, and spatial concentration of local-level forest industry. Instead, investment project size and local resource availability are found to have no significant impact on corporate entry mode choice in China.     

加入世贸组织与我国外贸发展前景及对策研究

分析了变化的外部经济环境将对我国经济和外贸发展带来的影响,并探讨了如何顺应潮流乘势而进发展外贸的因应对策.     

关于地方政府机构改革的两点思考

入世后,地方政府要精简机构,转变职能,提高工作效率和优质服务水平,建立高素质的公务员队伍。这样,才能 与市场经济相适应,与入世接轨相配套。     

城市公园免费前后生态环境容量对比分析——以昆明市西华公园为例

城市公园在城市美化和改善生态环境方面发挥着重要的作用,是城市居民的主要休闲游憩场所。随着城市公园的免费开放,剧增的游客给公园生态环境带来了不小的冲击。通过对昆明市西华公园免费开放前后生态环境容量的对比分析,探讨公园生态环境的承载力和再生力,以及如何在特定的生态区域内人为提高环境容量,改善生态环境容量因游客量剧增带来的矛盾,探寻城市居民与生态环境双赢的方式。     

上海口岸进境植物种苗截获疫情分析及检疫对策

对2011~2014年上海口岸进境植物种苗贸易情况以及截获疫情进行了分析,并对我国进境植物种苗检疫对策进行了探讨,提出了理顺检疫审批制度、开展风险分级管理、加强部门协作以及严格对邮寄和携带植物繁殖材料的检疫等对策建议。