ecosystem degradation

Natural conditions , the course and cause of ecosystem degradation in Southwest China karst-mountain are analyzed and emphasized .

分析西南岩溶山区的自然条件和生态退化的过程和原因；

Aiming at the highway rock slope in Karst areas in Guizhou Province , this paper analyzes the influencing factors of ecosystem degradation , describes the environmental factors affecting the vegetation restoration of highway slope and the influencing degree of the environmental factors .

以贵州省喀斯特地区公路石质边坡为研究对象，分析公路建设对生态退化的影响，阐述影响公路边坡生态恢复的环境影响因子及其影响的权重。

Ecosystem degradation is a major environmental problem in the world .

生态系统退化是当今世界面临的主要环境问题。

Vegetation degradation is the typical characteristic of ecosystem degradation .

植被退化是生态系统退化的最典型外在特征。

Affecting factors of ecosystem degradation in Xiamen Bay and significance of ecological remediation

厦门海湾生态系统退化的影响因素及生态修复意义

Tightening the face of resource constraints , environmental pollution , ecosystem degradation grim situation .

面对资源约束趋紧、环境污染严重、生态系统退化的严峻形势。

As a major environmental problem in the world , ecosystem degradation seriously hinders the sustainable development of society and economy .

生态环境退化已经严重阻碍了社会经济的可持续发展，成为各国关注的焦点；

Grassland degradation is grassland ecosystem degradation .

系统提出草原退化是草原生态系统退化，并对退化阶段进行了划分；

Grassland sandy desertification is one of the main reasons that the grassland ecosystem degradation and productivity decline continuously .

草地沙化是引起草地持续退化和生产力不断下降的主要原因之一。

Agriculture , combining natural reproduction and economic reproduction , was closely related to both ecosystem degradation and ecosystem rehabilitation .

农业是自然再生产与经济再生产相结合的部门，与生态系统退化和生态重建关系密切。

Ecosystem degradation , biodiversity and cut into a global ecological problem , and by international community think to human sustainable development of the threat .

生态系统恶化、生物多样性锐减等成为全球性的生态问题之一，并被国际社会认为是对人类社会可持续发展的重要威胁。

Wetland ecosystem degradation and lost , would damage the local community and personal health and well-being , and hinder economic growth around the world .

湿地生态系统的退化和丧失，将损害当地社区和个人的健康和福祉，并阻碍世界各国的经济发展。

Forest is the largest terrestrial ecosystems of natural eco-systems , and provides human services . But because of the unreasonable use , forest ecosystem degradation occurred .

森林是陆地生态系统中面积最大的自然生态系统，为人类提供各种服务，但由于不合理利用，森林生态系统出现了退化现象。

Facing the severe situation of tight energy constraints , serious environmental pollution and ecosystem degradation , the traditional development mode to constantly consume energy and produce carbon dioxide has been difficult to sustain .

面对能源约束趋紧、环境污染严重、生态系统退化的严峻形势，以不断消耗能源和排放二氧化碳为代价的传统发展模式已经难以持续。

Therefore , the sensitive soil physical and chemical indicators to grassland ecosystem degradation are : soil bulk density , total salt , pH , total nitrogen , available nitrogen , available phosphorus and potassium . 2 .

因此，反映草地生态系统退化较敏感的土壤理化指标有：土壤容重、总盐、pH值、全氮、碱解氮、有效磷、速效钾。

In this paper , research advance in restoration ecology was analysed , especially in reasons and ecological progress of ecosystem degradation , and the mechanics , approach and technology of restoration and reconstruction for degradation ecosystem in China .

简述了国内外恢复生态学的发展概况，分析了我国在生态系统退化的原因、生态学过程以及退化生态系统恢复重建的方法和生态学机理等方面的研究进展。

Ecosystem degradation in soil and water losses region of South China is serious , where soils are often derived from granite . Restoration of eroded degraded ecosystems is important for the improvement of ecosystem and development of sustainable economy .

我国南方花岗岩地区许多典型的水土流失地区生态系统极度退化，因此侵蚀退化生态系统的恢复与重建已经成为改善该地区生态系统和保障区域经济可持续发展急待解决的问题。

Harnessing and prevention of land salinization are extremely important to the prevention of agro ecosystem degradation , the protection of ago eco environment and the security of food supply in future for arid , semi arid and semi humid areas .

土地盐碱化治理和预防对中国干旱、半干旱和半湿润地区农业生态系统退化防治、农业生态环境保护和未来食物安全性具有非常重要的实践意义。

Reduction of eco-environment water supply was one of the main reasons for oasis ecosystem degradation in the Peacock river valley of Xinjiang in recent 50 years . So maintaining rational ratio between soc-economic and eco-environment water supply was a essential prerequisite for sustainable development of oasis .

生态环境用水量的减少是孔雀河流域近50年来现代绿洲环境退化的主要原因，维持生态与社会经济的合理用水比例是绿洲系统持续发展的前提。

In recent years , intensive human activities cause the emergence of a certain degree of wetland ecosystem degradation . In order to protect the wetland ecosystem and maintain wetland ecological needs of water , the research of wetland regional evapotranspiration become inevitable and it has important ecological protection significance .

近年来，由于强烈的人类活动使湿地生态系统出现一定程度的退化，为了保护湿地生态系统，维持湿地的生态需水量，研究湿地的区域蒸散发量成为必然，具有重要的生态保护意义。

Keeping wetland ecosystem from degradation ;

维持新生湿地生态系统不再退化；

The Evaluation Method on Ecosystem of Sand Degradation in Arid Area

干旱区土地退化生态系统的评价方法

Lost value of Chinese grassland ecosystem due to degradation : An estimate based on remote sensing

中国草原生态系统退化的价值损失量遥感估算

The intense interfere of human beings and maladjusted man-land relationship brings on the serious ecosystem fragile and degradation .

人类活动的强烈干扰及人地关系失调，进一步加重了生态系统的脆弱性并使生态退化加速。

The rocky desertification of Karst region is serious and the ecosystem becomes serious degradation . The Karst region is one of the ecologically fragile areas in China , which is urgent to-treatment .

我国喀斯特地区石漠化严重，生态系统严重退化，是我国急需治理的生态脆弱区之一。

The cold and virgin soil environment formed under the high plateau cold climatic condition is a significant component of the high-cold ecosystem . The degradation of the cold and virgin soil environment will profoundly influence the high-cold ecological environment and ecological balance .

其中，在高原寒冷条件下形成的冷生土壤环境是高寒生态系统的重要组成部分，冷生土壤环境的退化对整个高寒生态环境的安全和生态平衡造成了严重的影响。

Error of linear combination of the parameters is produced by combining parameters leading the grassland ecosystem to maintenance or degradation .

线性组合参数误差是通过将使得草原生态系统维持或者退化的单个参数误差进行组合得到。

Fungi play an important role in soil ecosystem , such as degradation of plant residue , inhibition of pathogen , etc. The diversity and richness of soil fungal community could even be a significant index in evaluation of soil microbial health .

真菌在土壤的生态环境中具有十分重要的作用，例如降解植物残体、抑制病原菌等等。真菌群落的多样性和丰富性甚至可以作为评价植物根围土壤微生态健康与否的重要指标。

Researches on the degradation of the ecosystem services ; the reasons and approaches on the ecosystem services degradation .

三是生态系统服务退化原因和对策的研究，以丰富我国生态系统服务研究的内容，并为生态系统服务价值评估研究提供基础和补充。

Ecosystem fragility was just the primary factor , while excessive disturbance caused by unreasonable human activities was the continuous trigger for ecosystem degradation .

生态系统的脆弱性只是生态系统退化的基础，不合理的人类活动对环境的巨大干扰才是导致生态系统退化的持续性触发因素。