以山地景观为特征的观光农业园规划设计探析

阐述了观光农业园的研究与发展历程,将观光农业园分类,按开发内容的不同分为观光农园、教育农园、农业公因;按开发模式的不同分为改造型和新建型;按地域性质的不同分为平原型和山地型.从地形、植被、水文、生态4方面分析了山地型观光农业园的景观资源特征;提出尊重自然、保护自然,景观单元关联、空间结构协调,系统性,保护传统文化的山地型观光农业园规划设计原则;并以此为基础进行了山地观光农业园建筑、景观小品、交通道路、植物绿化、给排水工程等的景观设计.     

将深情倾注在绿色大地上——记北京市土肥工作站站长、推广研究员赵永志

"民以食为天,食以质为先"对于首都北京来说更显重要.与国际大都市发展步伐相匹配的都市化现代农业,是农业专家一直为之奋斗的方向.如何充分利删匕京郊区有限耕地资源,兼顾城市生态环境,实现都市化现代农业;如何促进都市型现代农业又好又快地可持续发展,实现优良生态、优美景观、优势产业、优质产品的目标,使农业不断增效、农民不断增收;这是长期奋斗在北京农业生产一线的北京市土肥工作站站长赵永志的心愿.     

基于国土空间规划“双评价”专题中生态保护重要性评价的研究

“双评价”专题既是坚持生态优先、绿色发展的重要前提,也是划定生态、农业、城镇空间,优化国土空间格局的依据。目前生态保护重要性的理论和技术尚不完善,其中科学地评价不同区域内生物多样性保护的重要性是生态保护重要性的重要环节。本研究基于landsat8 OLI数据集,利用NPP定量指标法对某县生物多样性保护重要性进行了评价,得到了相应的结论。     

基于国土空间规划“双评价”专题中生态保护重要性评价的研究

"双评价"专题既是坚持生态优先、绿色发展的重要前提,也是划定生态、农业、城镇空间,优化国土空间格局的依据。目前生态保护重要性的理论和技术尚不完善,其中科学地评价不同区域内生物多样性保护的重要性是生态保护重要性的重要环节。本研究基于landsat8 OLI数据集,利用NPP定量指标法对某县生物多样性保护重要性进行了评价,得到了相应的结论。     

滨海新区城乡一体化进程中农村产业升级的路径选择

运用查阅资料和实地调研相结合的方法,分析了天津滨海新区城乡一体化进程中农村产业发展现状,指出新区一体化进程中存在突破城乡二元结构困难、区域内经济发展不均衡、第三产业发展滞后等问题.并提出了相应的对策:优化农业产业结构,推动农业产业化,形成设施农业、园区农业、高端农业为主的滨海都市型农业模式,实现农业集约发展;合理布局农村工业结构,形成区域主导产业,发挥工业带动作用,实现工业调整发展;加快以服务业为主的第三产业建设,形成现代农村服务业体系,使现代服务业成为主导产业,实现第三产业飞跃发展.     

区域尺度生态服务评估方法与应用研究

根据区域生态系统服务研究现状,概括了国内外生态系统服务定量评估方法,即能值分析法、物质量评价和价值量评价法.重点对区域生态价值评估的几种方法,包括市场法、替代市场法、假想市场法进行了比较分析.结合我国目前的生态保护和管理的实际需求,分析了生态系统服务价值评估在我国生态功能区划、生态保护与建设、生态补偿和区域规划环境影响评价方面的应用概况和未来的发展趋势,为生态保护和管理提供有力支持,并指出评估结果更具有说服力和有效性是生态系统服务评估的发展方向.     

利用TM影像研究玛多县天然草地资源景观格局

依据景观生态学的理论,运用"3S"技术,在草地资源分类的基咸工,对玛多县天然草地资源景观格局进行分析及评价.结果表明:研究区景观格局现状不佳,建议进行生态修复.     

都市农业产品消费者行为分析——以对北京市消费者的调查分析为例

都市型现代农业是一个国家或地区工业化、城市化的产物,它是经济社会发展到较高水平的标志之一.以北京市为例,阐述都市农业发展要以市场为依托,更重要的是满足都市居民对优质、安全、新鲜的农副产品及良好的生态环境的需要,通过实地调研,探求都市农业产品需求影响因素,对完善都市农业发展提出对策建议.     

新疆生产建设兵团可持续农业技术发展原则和技术体系研究

现代农业技术的广泛使用在不断推动兵团农业持续发展的同时,也成为制约农业持续发展的障碍因素.加快调整兵团农业技术发展方向,研究节约资源、保护环境的可持续农业技术发展的意义、原则和技术体系,是解决兵团农业生产中生态与经济协调发展,确保农业可持续发展的重要内容.     

城市化产生的城乡景观生态问题

运用景观生态学的理论和方法对城市化进程中的城市和乡村景观的结构、布局、功能和资源利用等方面进行研究,分析了中国目前由城市化带来的城乡景观问题和问题产生的原因:乡村景观生态问题突出自然、半自然景观的退化造成生态平衡失调,景观格局混乱造成生态环境质量下降,新旧景观不协调造成乡土特色消失,人地关系矛盾突出,土地浪费及污染严重,生态环境遭到破坏;城市景观生态问题强调区域生态环境遭到破坏使得生态功能下降、具有重要价值的自然与人文景观遭到破坏、城市绿色空间不断减少造成景观破碎度增加、城市布局缺乏规划引发空间发展问题.在此基础上提出相应的对策,指出乡村景观生态问题的解决应注重景观生态规划、调整布局,以整体性原则协调区域综合发展,有效协调各种矛盾,加大农村土地整理力度,开展生态网络建设;城市景观生态优化应着重于合理规划景观结构比例,建立合理的景观格局,并有效地建设城市绿地,调控生态环境.     

转炉炉壳热应力分析

根据实际转炉建立实体模型。以有限元为手段,考虑了炉衬和炉壳材料的物性参数随温度变化的特点和炉衬与炉壳之间膨胀间隙,计算了转炉炉壳在温度载荷和炉衬膨胀压力同时作用下的热应力。所得结果可为转炉炉壳设计提供依据。     

焦炭热性能指标意义浅析

通过对焦炭在高炉内的历程及其变化规律的剖析,阐述焦炭热性能指标的意义,形象地把焦炭在高炉内的损耗分为三部分(M1,M2,M3)。指出M2对焦比及焦炭价格有一定的指导作用。     

Results of treatment of cancer of the cardia

Cancer of the cardia is traditionally discussed with cardiac cancer of the lower portion of the esophagus and upper gastric cancer invading the esophagus, and the specific characteristics of cancer of the cardia have never been clearly defined. We reviewed the outcome of 172 patients with adenocarcinoma of the cardia who had undergone radical surgery between 1949 and 1994 in the Division of Gastrointestinal Surgery of the Cancer Institute Hospital. The centers of the tumors were located within 2 cm above and below the boundary between the esophagus and the stomach, and their longitudinal diameter was less than 8 cm. We divided the patients into an early period (1949-1979; n = 79) and a late period (1980-1994; n = 93), and focused on the historical transition. There were no differences in patient gender or histology between the two periods. However, the late period was associated with fewer cases of esophageal invasion and shorter longitudinal diameter, as the age of the population advanced. The number of advanced cancers such as the localized and infiltrative type had decreased, and early cancer and early clinical stage had become more common, but despite the fact that the number of early cancers had increased, extended dissection, such as thoracic and paraaortic lymph node dissection, was performed more frequently. By clinical stage, the long-term outcome markedly improved in Stage I patient in the late period, and tended to improve in Stage II and III patients. This appears to have been attributable to the prevention of micrometastasis by extended dissection, although the number of early cancers is another major potential cause. There were no differences in the outcome of Stage IV patients between the two periods, and further advances in multimodality therapy must be awaited. The range of resection is basically proximal gastrectomy, and if there are adequate indications, the prognosis is favorable. In view of the status of lymphatic flow and lymph node metastasis, and long-term results, lateroaortic lymph node dissection is important. Since the number of early cancer patients has been increasing, if intraabdominal recurrence is prevented, intrathoracic lymph node dissection will contribute greatly to the outcome of such patients.     

The effect of amount of possession of the trait of hostility on accuracy of perception of hostility in others.

Some theories of personality hold that an individual's perception of others is influenced by his own personality characteristics; more specifically, that a trait of low social value will be projected more into others, and that insight into the possession of these characteristics reduces this distortion. These 2 hypotheses were tested by having a group of college students rate each other (including themselves) on degree of friendliness or hostility. Agreement with group rating about self yielded the insight score. In general, the hypotheses were supported; the "friendly" Ss were most accurate in their perception of others, and insight was positively associated with accurate perception. From Psyc Abstracts 36:04:4HL16M. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Effect of antibiotics of chemotaxis of human leukocytes

The effect of 20 different antibiotics on chemotaxis by human neutrophils was studied. Human leukocytes incubated with chloramphenicol, rifampin, sodium fusidate, and tetracyclines in vitro showed markedly depressed migration. The mechanisms by which these antibiotics affect leukotaxis are discussed.     

Quality of life of relatives of mental patients

Usage of quality of life of psychiatric patients' relatives as the parameter of estimation of the quality of psychiatric care is considered. By means of standard questionnaire elaborated by the authors as well as by means of both individual and group conversations the quality of life was analyzed in 40 relatives which lived together with psychiatric patients. Different spheres of their life and difficulties (financial, social-psychologic, production) were examined in families with such patients. The defects of psychiatric care that had direct influence on the quality of life of the psychiatric patients' relatives are outlined.