Nutrient cycling and field-based partial nutrient balances in two mountain oases of Oman

Nutrient Relationships: Cycling

Nutrient Relationships: Cycling

Figure 1. Nutrients may be tied up in bryophytes for decades, or recycle within months, in forests with abundant bryophytes, as in this forest with Isothecium myosuroides. Photo by Michael Lüth. Few quantitative studies have addressed the role of bryophytes in ecosystem nutrient cycling. Nevertheless, bryophytes may play a significant role in N retention and release in the ecosystem (Figure 1)....

Forest Ecosystems: Nutrient Cycling

Nutrients are elements or compounds that are essential for the growth and survival of plants. Plants require large amounts of nutrients such as nitrogen (N), phosphorus (P), carbon (C), hydrogen (H), oxygen (O), potassium (K), calcium (Ca), and magnesium (Mg), but only small amounts of others such as boron (B), manganese (Mn), iron (Fe), copper (Cu), zinc (Zn) and chlorine (Cl) (micronutrients)...

Nutrient Cycling, Modelling and Management from Field to Catchment Scale

The changes in land use caused by antropogenic interventions, has increased the global pool of nutrients (Nitrogen and Phosphorus) in terrestrial and aquatic ecosystems. This report analyzes the behavior of the main nutrient biogeochemical cycles and the consequences of its alterations. It is remarkable the enhancement of some inputs and outputs to terrestrial and aquatic ecosystems and the inc...

Nutrient balances for cassava cultivation in Kampong Cham province in Northeast Cambodia

In Cambodia, cassava is mostly grown with little or no fertilizer inputs, but the magnitudes of nutrient balances are not known. This study was conducted to assess nutrient balances for cassava cultivation in Kampong Cham province in Northeast Cambodia. Forty five households in four cassava production zones were interviewed in relation to their cultural practices and crop residue management...