Soil Nutrient Evaluation in Hanzhong City of Shannxi Province
Based on the soil quality grading standard , a matter-element model was constructed with the weight was determined by analytic hierarchy process approach , and organic matter, total N, available P and available K were chosen as the evaluation indices.The model was applied to the soil nutrient evaluation in land consolidation, and it showed a positive results.The study indicates that the soil nutrient of the land consolidated project area is high, and the soil with grade Ⅰ and grade Ⅱ accounts 75 % of all samplings , and the main factors which affect the quality of soil nutrients are organic matter and total nitrogen.The study could provide theoretical references and basic data for soil nutrient evaluation of new farmland in Hanzhong City.
Hanzhong City of Shaanxi provinceanalytic hierarchy processmatter-element modelsoil nutrient evaluation
NETL
NSTL
万方数据
维普
