查询词典 ecosystem

Land natural resources uses a system is a complex and tremendous society, economy and ecosystem, traditional qualitative the problem that solves land natural resources effectively to use a system hard with mensurable method.

土地资源利用系统是一个复杂而巨大的社会、经济和生态系统，传统的定性与定量方法难以有效地解决土地资源利用系统的问题。

This paper probes into mining mode of metalliferous deposit based on the viewpoint of industrial ecology, in the hope of improving resources efficiency, eliminating the four big hazard sources which can bring negative environment impact due to mining of metalliferous deposit, avoiding "end-treatment" engineering needed when mine are closed, keeping integrated mine's ecosystem in the process of mining metalliferous deposit.

探讨了基于工业生态学观点的金属矿床开采模式，以期提高资源效率，消除矿床开采对环境造成负面影响的4大危害源，消除矿山闭坑后的末端治理工程，使矿山在生产过程中保持矿区完整生态体系。

At 4 km distance the species composition of different ecosystem components (vegetation, insects, birds, soil microbiota) had changed and the growth of trees was retarded.

在不同的生态系组分的4公里距离(植被、昆虫、鸟，土壤microbiota)树种组成改变了和树成长被减速了。

In this paper,five factors causing waterlogging in the lowland polder area s of southern china are listed and reviewed based on the field ecosystem of waterlogging:climate,topgraphy and morphography,soil,hydrology and geology and human activities.

从农田渍害生态系统的角度综述了我国南方低洼圩区产生渍害的五大成因：气候因素、地形地貌因素、土壤因素、水文地质因素和人为因素；在分析南方各地治理渍害经验的基础上，概述了目前改造和防治渍害低产田的七大措施：搞好水利工程建设，实行水旱轮作，加强耕作管理，增施有机肥料，利用抗湿种质资源，喷施外源生长调节剂及应用高分子技术。

Future studies are recommended to compare the impacts across multiple scales and multiple ecosystems; intensify mechanical studies of the impacts; link the impacts on biodiversity and ecosystem processes; and explore the mutualistic interactions between soil ecosystems and exotic plants.

今后，加强多尺度和多生态系统的比较研究、机制性研究、生物多样性和生态系统过程的整合性研究及土壤生态系统对植物入侵的反馈研究是评价外来植物入侵对土壤生态系统影响的发展趋势。

Ants are the most abundant and diverse animal species in subterranean ecosystem. They establish various complicated associations with other organisms, in which some ant groups form the oldest mutualism with fungi and become famous mycophagous insects.

蚂蚁是陆地生态系统中种类和数量最为丰富的动物类群，与其他许多物种都具有广泛而复杂的联系；其中一些类群与真菌形成古老的共生关系，成为著名的菌食性昆虫。

In the orchard ecosystem, effects of the soil microbial community are not neglectable.

在果园生态系统中，土壤微生物的作用是不可忽视的。

Finally, we examine the oasis ecosystem stability evaluation indicator system, and evaluate the stabilities of 10 oases in Xinjiang.

最后对绿洲生态系统稳定性评价指标体系进行了研究，并对新疆10个绿洲的稳定性进行了评价和分析。

Emergy Analysis created by Odum is a new method to evaluate natural capital and ecosystem services .

介绍了Odum的能值分析理论对传统能量分析方法的新发展。

T. Odum emergy analysis method, this paper studies the changes of agro-ecosystem emergy after cropland to grassland conversion.

T。 Odum能值分析方法，分析退耕还草前后农业生态系统的能值变化。

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。