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机构地区:[1]海南省环境科学研究院,海南海口571126 [2]中国科学院生态环境研究中心城市与区域生态国家重点实验室,北京100085
出 处:《安徽农业科学》2017年第12期213-217,共5页Journal of Anhui Agricultural Sciences
基 金:海南省国际科技合作专项(KJHZ2014-22)
摘 要:以重点生态功能区内的琼中县为例,将自然资本和农户家庭特征作为生产要素纳入水稻的生长函数中,根据农户问卷调查数据,结合遥感信息解译结果,构建了琼中县水稻生产函数。结果表明:村庄内部及周边的天然植被、人工林面积均与水稻单产存在显著正相关;在琼中县目前的施肥情况下,尿素与水稻产量存在正相关,而复合肥和磷肥与水稻单产没有显著相关关系;农户劳动力是影响水稻单产的重要因素,随着外出务工人数的增加,水稻单产呈下降趋势;非农家庭的水稻产量显著低于纯农家庭和兼业家庭。We took Qiongzhong,a county in the key ecological function area as an example to start a modeling analysis with natural capital and farm households features as production factor in paddy rice growth. And we developed a growth function of paddy rice in Qiongzbeng according to farm households' questionnaire data and interpretation results of remote sensing. The results showed that : Significant positive correlation was found between paddy rice yield and the natural vegetation and plantation areas within and around the village; under present fertilization conditions, there was a positive correlation between urea and paddy rice yield,however there was no significant correlation found between compound fertilizer and phosphatic fertilizer and paddy rice yield ;the labor resources of farm households is an important factor which will influence the paddy rice yield, as there are more migrant workers from rural area,the paddy rice yield has decreased;the paddy rice yield of non-farm households is obviously lower than farm households and households with both functions.
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