soil degradation

The soil degradation in in Larix olgensis plantations, to a certain extent, has been found.

落叶松人工林土壤质量存在着不同程度的下降问题.

They may provide an early warning of soil degradation and contamination.

在欧洲,经过挑选的蚯蚓品种可提供土壤污染的敏感的测定方法.

Man-made unreasonable land use is the main cause of soil degradation and eco-environmental deterioration. Rational utilization of land will be imperative.

不合理的土地利用方式是土壤退化和生态环境恶化的主要原因，因此，合理利用土地势在必行。

Abusement of chemical fertilizer application resulted in soil degradation and threaten sustainable agricultural development.

不当的化肥施用将导致土壤发生各种形式的退化,严重威胁着农业的持续发展.

The degradation and residue of bifenthrin in cabbage and soil under tropical climate were studied.

研究热带气候下联苯菊酯在甘蓝和土壤中的消解动态和最终残留.

Desertification leads to the formation of drought and lack of rain. Soil erosion and grassland desertification and degradation will continue to cause the expansion of the area of sand region. Desertification is our country is very serious.

荒漠化导致干旱少雨小气候的形成，水土流失、草原沙化退化严重，而且荒漠沙区面积不断扩大。

Soil pollution degradation is one of soil degradation patterns in China and also in the world.

土壤污染退化已成为我国乃至全球性土壤退化的主要表现形式之一.

Man_made accelerated erosion caused by forest vegetation destruction is soil degradation and eco_environmental deterioration.

人为破坏植被造成的加速侵蚀，是导致土壤退化和生态环境恶化的主要原因；

Besides, soil degradation is also associated with off site problems of sedimentation, climate change, watershed functions, and changes in natural habitats leading to loss of genetic stock and biodiversity.

此外，土壤退化还造成如河流与湖泊淤积、土壤有机碳储量变化、特殊生境消失以及生物多样性减少等其它环境与生态问题，对人类的生存与可持续发展形成极大威胁。

The present development on modeling and application about transport and degradation of chemical contaminant in soil systems is introduced, and further works to be done are discussed.

介绍当前国外对于土壤污染化学污染物传递和演变过程模型化及模型应用工作的进展情况，并给予评述，最后给出关于进一步研究该问题的讨论。

Long-term predatory operation caused serious soil degradation.

长期的掠夺式经营，造成了东北黑土地的严重退化。

It encompasses soil degradation and the deterioration of natural landscapes and vegetation.

它包括土壤退化和自然景观和植被的衰退.

Soil erosion is the main reason of desertification and environmental degradation.

它是引发水土流失、土地荒漠化乃至环境退化等生态问题的重要原因。

Soil erosion by wind, transport, and deposition occur over more than one third of the land surface of the earth and it is the most widespread form of soil degradation.

土壤风蚀是引起土壤退化最广泛的形式和原因之一。

GIS based soil information system ( SIS) is very important for assessment of the capacity of land production, the status, rates of soil degradation and global change studies.

地理信息系统（GIS）支持下的土壤信息系统（SIS）在评价土地生产能力、土地退化的现状、速率和风险以及全球变化研究中具有重要意义。

Study on Transport of Phosphorus and Soil Degradation of Loessial Soil on Slope Land

黄绵土坡耕地磷素迁移与土壤退化研究

Extensive production on hillside fields of sandstone hilly area causes soil and water loss, which leads to degradation of agricultural resources and degeneration of eco-environment and agricultural sustainable development.

砂岩山丘区坡地粗放生产是引起水土流失，导致农业资源退化和生态环境恶化，影响农业可持续发展和山区综合开发建设的重要制约因素。

Degradation of phenanthrene in soil at different aeration rates using modified biological reactor

利用改进的生物反应器研究不同通气条件下土壤中菲的降解

In order to solve the soil degradation of this area, conservation tillage must be put in practice.

为了解决东北黑土地退化的问题，实施保护性耕作势在必行。

The vegetative degradation of northwestern Yunnan problem and the soil and water loss was quite serious.

滇西北地区自然植被的破坏较大,水土流失严重.

Pea cultivation in arid and semi-arid agricultural regions is of great significance to rehabilitation ecological damage and inhibition soil degradation.

充分发挥其生物固氮作用，对修复干旱半干旱区的生态损伤和抑制土壤退化具有重要意义。

The types of land degradation are mainly soil degradation, stone-landification and water erosion.

土地退化类型主要有土壤退化 、 土地沙石化、土地石质化和侵蚀劣地.