片语

soil productivity grading[土壤]

potential soil productivity潜在地力

soil productivity quality土壤生产力质量

Forest Soil Productivity Decline森林土壤肥力衰退

evaluation of soil productivity土地生产力评价

soil water productivity土壤水分生产力

Soil and productivity losses土壤流失以及产量减少

soil sustainable productivity土壤持续生产力

climate-soil potential productivity气候

soil fertility[土壤] 土壤肥力；地力

英汉例句

• mixed plantation can be used to prevent soil productivity from deterioration in the repeated pure plantations. some problems of the application of mixed plantation are also discussed in this paper.

  针对目前人工纯林地力衰退的问题，提出了混交林可作为防止地力衰退的途径，并对混交林应用上的有关问题作了探讨。

• site level in hexi-corridor area was divided into 4 types by comprehensive analyzing the growing stock of stand and soil productivity of all kinds of farmland shelterbelt.

  通过对各土类农田防护林林分蓄积生长量和土壤生产力的综合分析，把河西走廊立地级划分为四类。

• based on this database and some software, the evaluation of soil productivity was conducted by ahp method, and .

  土壤生产力评价是土地生产力评价的一个重要方法，对土壤生产力进行科学合理的定量评价具有重要意义。

• the serious soil erosion of the loess plateau has led to not only the reduction of soil productivity but also the soil degeneration.

  黄土高原土壤侵蚀极其严重，这不仅导致了土壤生产力的降低，同时也导致了土壤的退化。

• in the total rate, the contribution of variety change, cultural improvement, the application of fertilizer, and soil productivity was 54%, 36%, 15%, and 27% respectively.

  其中，品种更换、栽培技术改进、施肥水平与地力变化和三因子综合作用对产量增长的贡献分别占54％、36％、15％和27％。

• by a concept soil productivity index (spi) model combined with soil database, the loss of rice yield and paddy soil productivity caused by urban expansion are evaluated from 1984 to 2001.

  水稻土生产力指数模型（spi）可以对常熟市水田土壤生产力进行合理地评价，可以用来估算在城镇建设用地扩展对水田土壤生产力和水稻产量造成的损失量。

• through the classic year's analysis, it is proved that the soil nutrient situation be the main factor for effecting on soil productivity of hillside fields.

  通过典型年样本分析，证明土壤养分状况是影响坡耕地生产能力的主要因素；

• soil productivity and biodiversity decline is a popular problem in the soil of eucalyptus plantation.

  土壤肥力下降、生物多样性减少是桉树人工林普遍存在的问题。

• soil productivity is strongly linked to soc because soc plays important roles in improving soil structure, soil water holding, infiltrating and capacities, and the nutrients supply to plants.

  soc在改善土壤结构、保持水分、防止土壤侵蚀和退化、提供植物养分特别是氮素等方面具有重要作用。

• it undertakes the function of converting the natural economy into commodity one, and enhance the soil productivity at the same time.

  生态经济沟建设承担着把自然经济拉上商品经济轨道的职能和提高土地生产力的职能。

• as the main reason for the worse water quality, agricultural non-point pollution, which also causes soil productivity to degenerate directly, is tightly related with the hydrological process.

  农业非点源污染是水系或水体水质恶化的最主要原因，同时也是土地生产力退化的直接动因，农业非点源污染又往往与流域水文过程具有不可分割的关系。