To the same soil degradation series, higher the fractal dimension, more serious the soil degradation.
对于同一土壤退化系列,分形维数越高,土壤退化越严重。
The dry and hot valley of Jingsha River is one of fragile ecological environment areas in China, where the soil degradation was very serious.
金沙江干热河谷地区是我国生态环境脆弱地区之一,土壤退化十分严重。
The soil degradation integrated 10 indexes of soil property indicated that compared with the primary marsh, the wetland under different utilization types all degraded.
综合土壤性质10项指标计算的土壤退化指数表明,与原生沼泽相比,不同利用方式下的湿地均出现退化。
Frequent tillage can often destroy the organic balance of soils resulting in soil degradation and poor productivity over time.
频繁的耕作往往会破坏土壤的有机平衡,逐渐导致土壤退化和生产力不足。
The aim of the field experiment was to investigate to what extent such a system could prevent soil degradation resulting from very intensive crop rotations.
此次田间试验的目的,是研究这一方法能在多大程度上防止由于精细的作物轮作所产生的土壤退化。
The manure decreases the acidity of soil, creating an environment ideal for the bacterial degradation.
鸡粪能减少土壤的酸性,创造出细菌降解的理想环境。
About 24% of 11.5 billion hectares of vegetated land has already undergone human-induced soil degradation, in particular through erosion, the study says.
报告指出,全球115亿公顷植被生长区中,约有24%已然经历了由人类活动引发的土壤退化,尤其因土壤流失造成退化。
Soil degradation induced by human activities together with natural factors has been attracting increasing attention in the world.
由人类活动和自然因素综合作用导致的土壤退化已引起全球的日益关注。
The fine particle loss in the soil is an important issue of soil quality degradation.
土壤中细颗粒的流失是土壤质量恶化的重要表现之一。
Through experiments of static adsorption, static degradation and dynamic soil column, the transport and transformation of organic pollutants in wastewater in saturated soil were studied.
通过静态吸附、静态降解和动态土柱试验,研究了磁河废水中有机污染物在土壤饱水条件下的迁移转化行为。
Soil erosion is the main cause of the degradation of local environment and backwardness in agricultural production.
水土流失是当地生态环境恶化,农业生产落后的主要原因。
The oil degradation rate is positively correlated with the respiratory intensity of soil bacteria, while the leaching has less impact.
土壤的油降解率与土壤细菌的呼吸强度有一定正相关,淋滤的部分相对较少。
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。
The community structure and function of soil fauna in ecosystems received severe negative impact with the increasing population, soil degradation and environment pollution.
随着人口的增长、土壤的退化以及环境的恶化,各种生态系统中土壤动物的结构与功能受到严重的干扰。
This paper reviewed the intension of soil quality, discussed the importance of studying soil quality, and analyzed development laws of soil quality and the ways of soil degradation.
本文综述了土壤质量的内涵、土壤质量研究的重要性与重点、土壤质量演变的规律及土壤退化的途径。
The main types of soil degradation were of poor nutrients, poor microorganism, bad structure, basification and heavy drought.
库区土壤退化类型有贫养分化、贫微生物化、结构劣化、碱化和严重干旱化。
This paper details the change characters of black soil quality, and analyses the natural and artificial factors of black soil degradation.
详述了近几十年来黑土资源质量的变化特征,分析了黑土质量退化的各种自然与人为因素。
Indirect competitive ELISA based on monoclonal antibody was applied to monitor the degradation kinetics of fipronil in vegetable and soil.
利用单克隆抗体间接竞争ELISA技术检测氟虫腈在青菜和土壤中的降解规律。
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。
This paper reviews the movement, degradation in soil of herbicide and character of some long residue herbicide and gives some suggestion to avoid carryover to next crops.
评述了除草剂在土壤中的移动与降解及若干类长残留性除草剂降解特点,提出了避免除草剂残留对后茬作物伤害的措施。
Nitrogen leaching from a sloping land is one of the important causes of soil degradation and agricultural non-point source pollution.
坡地氮素淋溶是导致坡地土壤质量退化和农业非点源污染的重要原因之一。
Through field investigation and soil fertility index analysis, causes and mechanism of fertility degradation of black soil in the Songliao Plain were explored.
通过田间调查和土壤肥力指标分析,探讨了松辽平原玉米带黑土肥力退化的原因和机理。
This reduces soil degradation, as freshly tilled soils are shaded and protected from heavy rains and run-off by the trees.
它可以减少土地的退化,通过树木来保持土壤不被暴雨冲走。
Globally, soil erosion, chemical deterioration and physical degradation are the important forms amongst various types of soil degradation.
土壤侵蚀、化学退化、物理退化是全球范围内最主要的退化形式。
The role of photochemical reactions in soil pesticide degradation remains uncertain.
光化学反应在土壤中的农药的降解方面的作用还没有确定。
Environmental fragility is only the premise of severe soil degradation, but vegetation damage induced by destructive human-soil interaction is the key driving force, or "the last straw".
西南喀斯特地区的环境脆弱性只是土壤严重侵蚀退化的前提或内因,日益尖锐的人地矛盾导致的植被破坏和退化才是喀斯特土壤侵蚀退化的关键驱动力。
Irrational land use and forest cutting have resulted in the serious degradation, the decrease of land productivity and the water and soil erosion in the fragile soil system and forest system.
不合理的土地利用方式和对森林的不合理砍伐导致脆弱的土壤系统和森林生态系统的严重退化、生产力下降和严重的水土流失。
With the increase of farming years the degradation of nutrients, texture and bulk density weakened the soil abilities of water and fertility retention.
随耕种年限的增加,耕地在养分、质地以及容重退化的同时保水保肥能力降低。
With the increase of farming years the degradation of nutrients, texture and bulk density weakened the soil abilities of water and fertility retention.
随耕种年限的增加,耕地在养分、质地以及容重退化的同时保水保肥能力降低。
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