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Species richness and Pielou evenness index were used to measure species diversity. Species richness in polluted area was 32-67, while in control area it was 47-82. Pielou evenness index of tree layer was 0.1161-0.8509, while those of shrub layer and herb layer were 0.1763-0.3249 and 0.0443-0.2601, respectively. The results showed that both species richness and Pielou evenness index were influenced by the point source pollution. Species importance values showed significant differences between polluted area and control area. Dominance of different species had changed, and some species even disappeared under the pressure of pollution, indicating a process of species replacement in plant communities. Such species replacement can provide a scientific basis for species selection for restoration of human-damaged ecosystem. The natural regeneration of Quercus variabilis was insensitive to pollution, while Cupressus funebris was effected seriously.

仅在污染区中出现的物种数量远低于仅在对照区中出现的物种数量；(2)可分出4种基本的群落类型：马尾松林、柏木林、栓皮栎林和马尾松＋栓皮栎林，各群落特定层次的物种丰富度指数以及Pielou均匀度指数在污染区与对照区之间存在显著差异；(3)污染胁迫下，物种在群落中的生态优势度发生了变化，反映了群落中不同物种相互替代的过程，这种物种的替代可为今后受损生态系统人为恢复过程中物种的筛选提供一定的理论参考；(4)对群落中王要物种更新的调查发现：栓皮栎林对污染不敏感；柏木林污染区与对照区幼苗数量及分布格局均有明显差异，污染条件下群落未来演替受到严重干扰。

The method of diagnosing plant diseases intellectively by computer vision that were short of a kind of nutrient in soiless agriculture was proposed on the base of the whole current development of computer vision in agriculture home and abroad. It has a vast range of potential application.

中文题名基于计算机视觉技术的无土栽培番茄缺素智能识别研究副题名外文题名 Study on application computer vision to diagnose tomatoes' diseases of nutrient deficiency in soiless agriculture intellectively 论文作者徐贵力导师毛罕平教授学科专业机械设计与理论研究领域\研究方向学位级别博士学位授予单位江苏大学学位授予日期2002 论文页码总数80页关键词无土栽培番茄智能识别计算机视觉馆藏号BSLW /2003 /S126 /4 在国内首次提出基于计算机视觉技术对无土栽培作物缺素进行智能诊断，论述了该技术的意义及广阔的应用前景。

A where enhanced some what through putting in two kinds of zoobenthos as Bellamya purificata and Misgurnus anguillicaudatus in plant cultivated channels of water purification system of hydroponic biofilter method compared with not putting in zoobenthos channel.

在水耕植物过滤法净水系统中的植物栽培廊道中，通过投放2种底栖动物螺蛳和泥鳅延长食物链后，TN、TP、TOC、Chl.a的去除效果均比未投放底栖动物的廊道有所提高。

Based on the results of information investigation, the paper briefly summarizes the research and application of cell engineering technology in agriculture: Chromosome engineering,protoplast culture,anther culture, cell culture, tissue culture and somatic hybridization. The worldwide development and progress in the application of cell engineering in plant breeding are reviewed.

根据文献研究结果，系统地综述了染色体工程技术、原生质体培养、花药培养、细胞培养与无性系筛选、组织培养与体系胞杂交等细胞工程技术，在国内外农作物育种上开发应用后所取得的新进展、新成果，以及这些新成果的产业化，对促进中国农业生产的发展所起的作用。

Has is equal to global rivers half water, the flow in human and in animal's blood vessel, flow in plant's rhizome, leaf vein.

有相当于全球河流一半的水，流淌在人类和动物的血管里，流淌在植物的根茎、叶脉之中。

The study with fuzzy set ordination showed that in the National Nature Reserve in Yellow River Delta,there was a greater difference in plant habitat and vegetation type along a water table depth gradient.

采用模糊数学排序方法对黄河三角洲国家级自然保护区不同水深梯度下芦苇湿地植被进行了研究，揭示了水深对植被空间分布的影响。

By the selection of applicable algorithm module for different hydropower stations in the basin, the optimized results can be managed, analyzed and compared through the directory tree concerned, and then the soft ware feature of integrated management, micro-analysis and vertical comparison is created, which surpasses the mode of study with attention only on single power station and is an innovation in the area of study on the in-plant economic operation of hydropower station as well.

用户可以针对流域的不同电站选择合适的算法模块，通过目录树对流域各水电站的优化结果进行管理、分析和比较，从而形成统一管理、微观分析和纵向比较相结合的软件特性，打破了传统的只注重单个电站优化运行的研究模式，是厂内经济运行研究领域的一种创新。

By splicing in genes from other bugs, the company was able to engineer synthetic metabolic pathways—ones that do not exist in nature—that enable the bacteria to produce isoprene from the sugars found in plant materials such as sugar cane, corn cobs and switchgrass, a tall-growing variety native to North America.

Genencor的科学家们通过将大肠杆菌的基因与其它菌类基因接合，则能研发出前所未有的代谢合成途径，使细菌能从植物所含的糖类中制造出异戊二烯，这些含糖植物包括甘蔗、玉米棒和北美特有的变异品种柳枝稷等。

Finally, introduce the different organize modes of agriculturalintegration, among them company+ the peasant household type is wide in every locality and appear early, spreading in plant industry and farming industry, in addition there is other mods such as the cooperation organizes+ peasant household type, profession market+ peasant household type, predominate the industry+ peasant household type etc..

最后，介绍了农业产业化的不同组织模式，其中公司+农户型在各地出现较早，在种植业和养殖业中广为流行，此外还有合作组织+农户型，专业市场+农户型，主导产业+农户型等。

Herbalife Herbalife products, the source of skin-dimensional characteristics of the The product is world-renowned experts in plant ecology, the international hotspots of biodiversity and communities artificial Association, the Chinese Academy of Sciences, former director of the Kunming Institute of Ecology Professor Feng Yaozong, according to the principles of ecology combination of traditional Chinese medicine theory, the use of modern high-tech means After more than four decades of observation, research, filter selection and repeated clinical trials, the selection of tropical rain forest in Xishuangbanna, Yunnan climate unpolluted virgin forest in the unique natural refined from wild plants.

该产品是由世界著名植物生态学专家、国际热区人工群落与生物多样性协会主席、中国科学院昆明生态研究所原所长冯耀宗教授，根据生态学原理结合传统中医学理论，采用现代高科技手段，经过四十多年的观察、研究、滤选、反复临床试验，精选云南西双版纳热带雨林气候下未受污染的原始森林中特有的天然野生植物精制而成。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。