查询词典 ecosystem

On the basis of further investigation and research selected from representative objects, the forest ecosystem management is analyzed systemically and designed representatively.

在深入调查并选择有代表性的对象进行研究的基础上，对森林生态系统经营进行系统分析和典型设计。

The Dongting Lake area is the largest lacustrine wetland ecosystem in China,where biological resources are very plentiful,which include 1428 species of plants,216 species of birds, 119 species of fishes,27 species of amphibians and retile,22 species of mammals and a great number of other wild living things.

中文摘要：洞庭湖湿地是我国最大的淡水湖泊湿地生态景观系统，生物资源十分丰富，其中植物资源 142 8种，鸟类资源 2 16种，鱼类资源 119种，哺乳类 2 2种，两栖爬行类 2 7种及其它大量的野生生物资源。

All these activities changed or weakened the structure and function of the riverine ecosystem.

这些活动都直接或间接地改变或损害了河流生态系统的结构、功能。

As restoration of riverine ecosystem is very difficult or even impossible, protection measures are more needed than remediation.

保持河流各方面整体协调是流域开发研究的重点和必然趋势。

In the aim of efficient ecological restoration of riverine ecosystem, the importance and necessity of establishment of the watershed ecology view are emphasized.

出于有效进行生态恢复的目的，强调树立流域生态观念的必要性，建议从流域的角度出发进行综合整治

In the aim of efficient ecological restoration of riverine ecosystem, the importance and necessity of establishment of the watershed ecology view are emphasized.

出於有效进行生态恢复的目的，强调树立流域生态观念的必要性，建议从流域的角度出发进行综合整治。

The paper has provided scientific supports for maintaining riverine ecosystem health and achieving good management.

为探索有效的河流生态系统修复途径和管理策略，维持河流系统的健康，逐步实现水生态系统的良性循环，我国已把河流生态系统的保护与修复列为&十一五&规划的重要内容之一。

Ruppia maritime is an important elementary producer in the inshore ecosystem. Understanding its ecological characteristics is significant to restoring the degenerated and polluted coastal wetland ecosystems.

川蔓藻是近海生态系统中重要的初级生产者，了解它的生态学特征对于河口海岸带的生态修复具有重要意义。

Soil ecological degradation can be defined as the process and phenomenon of a series of deterioration of soil ecological environment such as structural destruction and functional recession of soil ecosystem, decrease of soil biodiversity and productivity, dcsertification, drought, hardness, acidification and salination of soils, deficit and unbalance of soil nutrients, and loss of soil and water, resulting from human activities and adverse natural environmental conditions.

土壤生态退化是指由于人类活动及恶劣的自然环境条件作用或二者共同作用下造成的土壤生态系统结构破坏、系统功能衰退、土壤生物多样性减少、土壤生产力下降以及土壤荒漠化、干旱化、板结化、酸化、盐碱化和养分亏缺与失衡等一系列土壤生态环境恶化的过程和现象。

With the parameters from published literature and experiments, we conducted forward analysis to compare soil organic carbon, carbon sequestration rate and soil total nitrogen dynamics of four different ecosystem types bare ground, Scirpus mariqueter, Phragmites australis, S.

通过构建九段沙生态系统碳氮模型并结合实测数据比较了互花米草入侵后生态系统土壤有机碳储量、碳封存速率和土壤总氮与其在土著占优势的3类生态系统（裸地、海三棱藨草、芦苇）中的差异，结果表明互花米草入侵的生态系统，其土壤有机碳储量高于裸地和海三棱藨草生态系统，却低于芦苇生态系统。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。