Natural soil fertility is dropping in many areas because of continuous industrial fertiliser and pesticide use, while the growth of algae is increasing in lakes because of the fertiliser run-off.
在很多地区，由于工业化肥和农药的持续使用，导致自然土壤的肥力正在下降，然而化肥的流入却导致湖泊中藻类生长得越来越快。
As the management term of pure bamboo stands prolonged the natural soil fertility declined, which resulted from the growth characteristics of pure bamboo forest and the management methods.
毛竹纯林随经营期的延长，其土壤的自然肥力呈下降趋势，这是毛竹纯林的生长特性和经营方式决定的。
Natural soil fertility is dropping in many areas because of continuous industrial fertilizer and pesticide use, while the growth of algae is increasing in lakes because of the fertilizer run-off.
在很多地区，由于工业化肥和农药的持续使用，导致自然土壤的肥力正在下降，然而化肥的流入却导致湖泊中藻类生长地越来越快。
Forest soil fertility mainly relies on maintaining and resuming natural fertility and combines with artificially applying fertilizer.
森林土壤肥力以维持和恢复自然肥力为主，人工施肥为输。
Natural fertility of soil is the gradual product of natural and historical process.
土地自然肥力是自然历史过程的产物；
Fertilizers enhance the natural fertility of the soil or replace the chemical elements taken from the soil by previous crops.
肥料能提高土壤的肥力，或补充土壤中被以前作物吸收的化学元素。
The southern polder area of China has fertility soil, variegated rivers and plentiful natural resources.
我国南方圩区土壤肥沃，水网密布，资源丰富。
The southern polder area of China has fertility soil, variegated rivers and plentiful natural resources.
我国南方圩区土壤肥沃，水网密布，资源丰富。
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