雷州半岛旱坡蔗地的自然生产潜力及限制因子分析

根据雷州半岛的自然条件和生产特征，建立了光、温、水和土壤条件对甘蔗自然生产潜力影响的分析模型和综合模型；通过时模型计算分析，明确了影响雷州半岛甘蔗自然生产潜力的主导因子是土肥条件，其次是水分条件，再次是光、温、水配制结构和温度条件；并明确了雷州半岛旱坡蔗地各耕作土壤中存在的限制因子的位序，为分阶段进行旱坡蔗地土壤改良提供了依据

Analysis on Natural Productive Potential and Restrictive Factors of Drysloping Sugarcane Fields in Leizhou Peninsula

The analysis model and synthetic model of effect of light. temperture, water and soilcondition on the sugarcane natural productive potential were established by the natural condi-tions and productive specific feature in Leizhou Peninsula,statistical analysis on the modelswhich have shown that the lst factor that effected the sugarcane natural productive potentialin Leizhou Peninsula was soli fertility,the 2nd was water,the 3rd was making up structure oflight,temperature,water and temperature condition.and the position order of restrictive fac-tors in every cultural soil of dry sloping sugarcane fields in Leizhou Peninsula was shown,this provided a basis for soil improving of dry Sloping sugarcene fields by stage divided.