最大灌水定额 meaning in Chinese

maximum duty of water

According to the correlativity between stomatal conductance and soil moisture , root system distribution and soil water profile , these greenbelt should irrigate when soil moisture is high , and their scheming wetted soil layer depth is shallow in slow consumption stage ; irrigate when soil moisture is low , and their scheming wetted soil layer depth is deep in quickest consumption stage ; irrigate when soil moisture is higher , and their scheming wetted soil layer depth is deeper hi slower consumption stage
在草坪弱、泡桐中耗水期时，土壤高含水量时即须浅层灌溉补水，以满足其萌发需要；中、强耗水期，可低土壤含水量时深层灌溉补水；微耗水期，为安全越冬，又需中深层灌溉补水。最大灌水定额由灌溉饱和点、补偿点和计划湿润深度确定。