森林生态系统退化的要害因素是林业开发强度。
The crucial factor that silvan ecosystem degrades is forestry development intensity.
富营养化是导致湖泊生态系统退化的主要因素。
Eutrophication is the main factor for the degradation of lake ecosystem.
已知或可能的损害包括海洋酸化、热带雨林消失、生态系统退化还有沙漠化。
Known or probable damage includes ocean acidification, loss of rain forests, degradation of ecosystems, and desertification.
此项研究是关于中国东部常绿阔叶林生态系统退化类型、动因和机制。
This study deals with the degradation mechanism of damaged evergreen broad-leaved forest(EBLF) in eastern China.
运用RS、GIS和数据库管理技术建立了生态系统退化度研究数据库。
Database on EDD study was built using RS, GIS and database management technology.
导致水生态系统退化的原因多种多样，而人类经济活动的不当是主要的作用因子。
The reasons leading to the degeneration of aquatic ecosystem are various and the mismanagement of human economic activities is the major factor.
此外针对三江源区湿地生态系统退化机制和存在的主要问题，提出了合理利用与保护对策。
In addition, Measures on reasonable utilization and conservation are put forward on the basis of degradation mechanism and problem of wetlands ecosystem in Sanjiangyuan region.
生态环境预警是对人类活动引起的生态系统退化与环境质量恶化进行预测。并提出及时的警告。
Ecological and environmental warning is defined that the forecast and warning must be given on time for ecologicaldegrading or environmental quality deteriorating caused by human activities.
本文以废黄河三角洲为例，分析了废黄河三角洲生态系统退化的自然和人为应力以及生态系统的退化过程。
Taking the abandoned delta of Huanghe River as a case, this paper analyzed the natural and artificial driving forces of ecosystem degeneration, with the degeneration course investigated.
元谋干热河谷生态系统退化严重，其中强度退化和极强度退化面积占到了元谋干热河谷区总面积的46.7％。
There is grievous ecosystem degradation in Yuanmou Dry-hot Valley. Thepercentage of severe degraded and the extremely severe degraded area account for 46.7% of the whole Dry-hot Valley area.
分析了草地类型生态系统退化的现状、原因及其恢复途径，提出人工草地的建立是恢复退化天然草地的有效途径；
This paper analyzed the degradation actuality of natural grassland, its reasons and corresponding restoration ways. Natural restoration is the easiest way, but it is very slow.
笔者认为，恢复生态学是研究生态系统退化的原因、退化生态系统恢复与重建的技术与方法、过程与机理的科学。
The author thinks that restoration ecology is a integrative subject to study the reason and process of the degradation, and the mechanism and technology of restoration.
根据《新千年生态系统评估报告》，“60%的世界生态系统正在退化或者消亡，我们有义务来改变我们的方式。”
According to the Millennium ecosystem Assessment, "60 percent of the world's ecosystems are degraded and failing." We have an obligation to change our ways.
此外，鼓励以其他生态系统服务为代价进行商品生产的补贴会加重环境的退化。
In addition, subsidies that encourage the production of marketed goods at the expense of other ecosystem services can aggravate their degradation.
北卡罗莱纳州立大学的Rodrigo Arriagada和他的同事认为生态系统付费方案对有效减少10%的农场里部分森林退化做出了贡献。
Work by Rodrigo Arriagada of North Carolina State University and his colleagues suggests that the PES scheme was responsible for only 10% of the reduced deforestation on farms that took part.
摘要建立了退化河口生态系统恢复评价指标体系。
An evaluating index system is established for degenerated estuarine ecosystem restoration.
简述了退化森林生态系统恢复和重建的一般操作程序；
The common work procedure of rehabilitating degraded forest ecosystems was briefly introduced.
城市污泥对退化森林生态系统土壤的人工熟化研究。
Artifical improvement of soil fertility in a regraded forest ecosystem by using municipal sewage sludge.
由于人类对水资源的不合理利用，造成荒漠河岸生态系统的退化甚至崩溃，保护受危胡杨种群已成为当务之急。
The riparian ecosystems are facing the dangers of degrading or even collapsing due to the unreasoned water utilization by human being.
由于人类利用和改造湿地资源活动的日益加剧，湿地正在全世界范围内面临威胁，并已成为退化最为严重的生态系统。
With more and more activities of using and changing wetland by human, wetland is facing with worldwide threat and has become one of the most degraded ecosystems.
更多是从植被恢复及其水土流失效应方面进行了探讨，为退化生态系统恢复和格局设计提供了极其有用的信息。
Most authors studied vegetation restoration and its effects on soil loss, and provide much valuable information on degraded ecosystem restoration and ecological security pattern design.
退化森林生态系统的恢复和重建依赖于对有关理论的理解和认识，也依赖于对有关技术体系的研究和应用。
To restore and rehabilitate the degraded forest ecosystems, we must understand the theories concerned, also we have to study and apply the related technology.
其他淡水和陆地生态系统也因污染而退化。
Other freshwater and terrestrial ecosystems have been degraded by pollution.
由于城市化影响及人为干扰，深圳凤塘河口水质受到严重污染，河口红树林生态系统严重退化。
Due to the urbanization impact and human disturbance, the water quality of Fengtang estuary in Shenzhen was seriously polluted, and part of the mangrove ecosystem was badly degraded.
对退化生态系统的层次结构、层片结构、高度级结构及其动态等进行了研究。
Layer structure, synusia structure and height - classes structure and dynamics of degraded ecosystem were studied.
本文从地震对震区生态系统的破坏和退化出发，探讨了不同生态系统重建中植被恢复的技术和做法。
Based on the destroyed and degraded ecosystem by the powerful earthquake in seismic areas, vegetation restoration was discussed in reconstruction of different ecosystems.
耕作对喀斯特脆弱生态系统土壤具有重要影响，是造成土壤养分流失、退化的主要原因。
Tillage practice had important effect on soil nutrients loss and soil degradation in the fragile karst ecosystem.
海洋生态系统正在退化。
结果表明：1。退化生态系统木本植物的密度与植被的恢复阶段紧密相关；
The main results are as follows: 1 . Woody plant density in degraded ecosystem is in close relation with restoration stage of vegetation.
结果表明：1。退化生态系统木本植物的密度与植被的恢复阶段紧密相关；
The main results are as follows: 1 . Woody plant density in degraded ecosystem is in close relation with restoration stage of vegetation.
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