生态的

The rule of Baiyangdian water eco-system change is put forward according to the controlling variable of water quality and water quantity by catastrophe theory.

通过在分析白洋淀水生态系统的构成与特点的基础上，应用突变理论对白洋淀水生态系统在水量与水质两个控制变量作用下的变化进行了研究，阐述了白洋淀水生态系统状态变化的规律。

In the construction of the flood control projects, it is necessary to give attention to the ecological requirements by reasonably adopting the technologies of the ecological engineering in order to alleviate the negative effects from the hydraulic projects and avoid both the channelization and the discontinuities of the natural rivers.

在防洪工程建设中，需要兼顾生态需求，合理引入生态工程技术，减轻水利工程对河流生态系统的负面影响，避免自然河流的人工渠道化和非连续化。很多发达国家的堤防工程规范中已明确提出了这方面的要求，并发布了有关的技术导则或手册。

The counter measures of solving these problems were suggested as follows: firstly, using water resources and fertilizer reasonably and choosing salt tolerance crops to control saltinization; secondly, choosing acid tolerance feed and using the chemical method to control acid rain; finally, soil erosion could be controlled by bioremediation.

对于三种生态环境问题，提出的控制对策如下：盐渍化的治理对策为合理用水、施肥，种植合适的耐盐作物；酸沉降治理对策为种植抗酸作物和采用化学调控方法降低降对作物的损害；水土流失使用生态恢复工程和生态重建工程进行治理。

On this base, the paper brings in the concept of ecotourism cultural system, which includes the two subsystems of eco-harmonious subsystem of the tourism sites and the other subsystem presenting the cognation and perception of visitors to the destinations.

通过该研究的归总以期推进研究者和管理者对生态旅游文化构成的探讨，将学术界和非学术界对生态旅游的观点相互结合并促使生态旅游实现真正意义上的可持续发展。

When three kinds of environmental texts are analyzed in the ecocritical perspective,the development of human history is considered to be in concomitance with environmental history.

从生态批评研究的多种"环境文本"可以看出，生态批评试图召唤一种阅读语境的根本性转换——从人类唯我独尊的语境转换到一个"地球大生态圈"视阈中的环境语境。

The results show that the coral reef ecosystem is very fragile but of high productivity.

通过对珊瑚礁形成的机制、生态控制作用和分布的关键因素分析，得出珊瑚礁生态系统是较脆弱的生态系统，同时它也标志着海洋环境的洁净程度。

In view of Helan Mountain-Yinchuan basin is a ecological Continuum, it's innovative to put forward the holistic system of Helan Mountain-Yinchuan Basin as suitable scale for landscape management. Based on the fact that Helan Mountain-Yinchuan Basin in a circle composed by deserts and Loess Plateau,and seven vegetation ( the mountain forest belt,mountain shrub-grass belt,mountain foot desert grassland belt,oasis belt in diluvial fan plain,oasis belt in alluvial plain,wetland belt near the Yellow river, desert grassland belt in Obrdos platform) belong to the system, a"mountain-plain oasis-river-platform eco-productive paradigm"is proposed.

基于贺兰山——银川盆地是一个生态连续的复合系统，创新性地提出以整个山盆系统做为景观整体管理的尺度；基于贺兰山——银川盆地处于生态脆弱圈内山地森林带、山地灌草带、山麓荒漠草原带、洪积平原带、黄河冲积平原带、黄河滩涂湿地带、鄂尔多斯台地荒漠草原带等7个植被带的水平和垂直地带性特点，提出了贺兰山——银川盆地系统山地-平原绿洲—黄河—台地的生产生态范式。

But most natural forests were transformed into the artificial cultivated ecosystem—such as farmland, orchard, tea garden, economic forest, artificial forest, and others-which was result from the managing action by mankind such as disforest and reclamation, building plantation. It presented diversification of forest ecosystem conversion mode.

在历史上，中亚热带山地生态系统的自然植被基本上为天然常绿阔叶林，但由于人类的经营活动(如毁林开辟耕地、营造人工林等)，大部(来源：A85BC论文网www.abclunwen.com)分天然林已转变为人工栽培用途的生态系统(如农田、果园、茶园、经济林、人工林等)，呈现出多样化的森林生态系统转换模式。

And the applied methods of soil seed bank in ecologic restoration for ...

本文对土壤种子库的特征、研究方法和国内外研究进展等进行了综述，探讨了土壤种子库存植被恢复和重建中的重要作用，分析了土壤种子库应用于工程创面生态生态恢复的优势，提也了利用土壤种子库对工程创面进行生态恢复的实施方法。

The ecotype consumption is a kind of consumption mode which accord with environment rule.

生态消费是一种生态化的消费模式，生态消费对于传统消费方式的超越和变革决定了它不是一般意义上的问题，而是关系到人类活动的重大社会问题。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！