But the biology of the soil is also being damaged by the loss of organic matter, which can take five to ten years to recover.
但土壤生物学也在有机物损失损失中遭到破坏，这可能需要五到十年才能恢复。
Ecology studies the whole; biology studies the organic constituents of the whole that are no more important than air, water and soil.
生态学研究的是整体；生物学研究的是这个整体里的有机成分，这些有机成分并不比空气、水和土壤更重要。
Itimproved the quantity of all kinds of micro-biology in soil as wellas the number of organism material and its richness.
它在大大增加复垦土壤中各种微生物数量的同时，也增加了土壤中的有机质的含量和肥力。
Soil science majors learn about the chemistry, biology, use, management, and conservation of different kinds of soil.
这个专业学习化学，生物，用途，管理，以及不同土壤的保护等。
Coursework includes plant biology, entomology, soil chemistry, and plant propagation.
课程包括植物生物学，昆虫学，土壤化学和植物繁殖。
The various unreasonable farming activities in Northern China plain caused tri-dimension pollution to water, soil, biology and air.
概述了华北平原区由于各种不合理的农事活动，对水体-土壤-生物-大气所造成的立体交叉污染的现状。
We must therefore take integrated management of relevant factors, which may influence the valley ecosystem, including water, soil, biology and associated resources.
因此我们必须对影响流域生态系统的有关因素，包括水、土、生物及相关资源进行综合管理。
Courses include plant biology, the chemistry of fertilizers and pesticides, identification of trees and shrubs, soil conservation, and related studies.
课程包括植物生物学，肥料和杀虫剂的化工制造，树木和灌木的辨识，水土保持及相关研究。
Courses include plant biology, the chemistry of fertilizers and pesticides, identification of trees and shrubs, soil conservation, and related studies.
课程包括植物生物学，肥料和杀虫剂的化工制造，树木和灌木的辨识，水土保持及相关研究。
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