耕地地力评价因子权重及隶属度的确定

Determination of Weighting and Membership of Farmland Evaluation Factors

根据耕地地力评价因子总集,按照选取的因子应对耕地地力有较大的影响,在评价区域内的变异较大,在时间序列上具有相对的稳定性,因子之间独立性较强的原则,选取拉萨市耕地地力评价因子。结合拉萨市实际,确定各评价因子的权重、隶属度,为全面推广测土配方施肥技术提供依据。

Based on the total set of evaluation factors of soil fertility,according to the principles that factors selected should have a great effect on farmland,in the evaluation of large variation within the region,in the time series relative stability,a strong independence,the local soil fertility evaluation factors were selected.Combined with local conditions,the weight of the evaluation factors and membership were determined,so as to provide basis for comprehensive soil testing and fertilization technology.