宁夏中卫环香山地区压砂地西瓜降水生产潜力研究

Study on Natural Precipitation Productivity of Gravel-mulched Land Watermelon in Xiangshan Mountain Region of Zhongwei in Ningxia

利用宁夏中卫环香山地区1961-2011年月份气温、降水量等气象资料,运用衰减法,估算了中卫压砂地区降水生产潜力。结果表明:中卫各地区热量条件较好,海原县降水生产潜力较高,沙坡头区次之,中宁县较低,水分条件是限制西瓜产量的主要因素,压砂地产量尚有较大提高空间,为当地压砂瓜产业发展提供理论依据。

Based on the data of temperature,precipitation and other meteorological data in Zhongwei during the year of 1951 to 2011,the attenuation method is used to estimate the natural precipitation productivity of gravel-mulched area.The results show that：the heat condition in various regions of Zhongwei is good;water condition is the main factor limiting the yield of watermelon;and the yield has great improving space.The study can provide the theory basis for the development of local agriculture.