The function of forest floor on water conservation, nutrient supply, promoting biological respiratory intensity and soil development are discussed.

探讨了森林地层在水土保持、养分供应、促进生物呼吸强度和土壤发育等方面的作用。

youdao

The glacier influence of Quaternary Period affect soil development obviously;

土壤发育受第四纪冰川影响明显，成土年龄短；

youdao

The degree of differentiation of iron and manganese in horizons increased with the degree of soil development.

铁、锰在土层中的分化程度，随土壤发育的程度而增加；

youdao

Authorities here have acknowledged that deforestation and unregulated development were responsible for weakening the soil and contributed to the mudslides from Messina's surrounding hills and cliffs.

VOA: standard.2009.10.03

It undermines development and tills the soil of unrest.

UNESCO: Putting Education First - Al-Hayat

Phase II, planned for 2011, will identify both aquifers down to 3, 000 meters below the surface, study soil composition and aquifer replenishment, and prioritize areas for agricultural development.

UNESCO: launches initiative to identify groundwater and alleviate water shortages in Iraq | United Nations Educational, Scientific and Cultural Organization

Food safety is a particular concern, as some of the contaminants from years of industrial development make their way into the country's food from the soil in which it is grown.

WSJ: Cadmium-Tainted Rice Found in Guangzhou