以不覆盖的处理为对照，研究了冬小麦期覆盖秸秆对夏玉米土壤水分动态变化及产量的影响。
Taking bare surface as CK, this paper discussed effect of straw-mulch during wheat stage on soil water dynamic changes and yield of summer maize.
依据定位观测数据，对紫色土丘陵区农用地土壤水分的动态变化规律进行了初步研究。
Based on the data of observation in fixed location, the pilot study on soil moisture dynamic variation law of farmland in purple soil hilly region has been done.
植物根系对土壤水分动态变化影响明显。
Root system of vegetation clearly influence the trends change of soil water.
试验在池栽条件下研究了滴灌与垄沟耕作条件下冬小麦田间土壤水分的动态变化。
An experiment was carried out to study changes in soil moisture in winter wheat field under the conditions of drip irrigation, furrow and ridge planting.
试验结果表明，土壤水分显著影响了小麦的光合蒸腾日变化动态。
The research results reveal that the soil moisture prominently impacts the daily variation kinesis of transpiration rate and the daily net photosynthetic rate of wheat leaves.
以淳化试区的水平梯田为系统研究对象，休闲坡地为对照，对其剖面土壤水分变化进行动态监测。
Level terrace in Chunhua was the system studied object, fallow sloping field was the check, and their soil moisture variety was dynamic monitored.
准确预测和预报田间土壤水分的动态变化过程是土壤水分高效利用的关键。
To predict accurately the dynamic movement of soil water is a key for high-efficient use of soil water.
研究了甘肃黑河地区麦田土壤水分的变化动态。
The laws of soil moisture variations on the state of evapotranspiration in Heihe areas has studied.
下部土壤含水率等值线分布由底部向上都呈递增趋势，表明本次试验土壤水分动态变化不受地下水位的影响。
The distributing trend of soil moisture contour map in under soil is rising up from bottom to surface, which indicates that ground water level has no influence on soil moisture variation.
应用土壤水分实测数据对SWAP模型参数进行了率定，结果表明率定后的模型能够较好的反映出当地农田实际水分的动态变化过程。
The parameters in the SWAP were calibrated with the data of irrigation experiment The calibrated model represented preferably the field soil water movement.
土壤水分是连接气候变化和植被覆盖动态的关键因子。
Soil moisture is the key factor, which connects climate with vegetation change.
通过对5个海岛棉品种土壤水分动态变化分析研究，结果表明，不同海岛棉品种各生育期土壤含水量、土壤蓄水量以及水分利用效率存在差异。
The dynamic change of soil water of 5 island cottons was studied, The results show that there are distinct difference in soil water content and water use efficiency among different varieties.
土壤水分是土地评价及节水农业技术研究的基础，土壤水分的动态变化已经成为前沿研究领域的热点之一。
Soil moisture is important basis of land appraise and agricultural water saving technology research, and soil water has become one of the research hotspot in the world.
依据定位观测数据，对紫色土丘陵区农用地土壤水分的动态变化规律进行了初步研究。
Soil physicochemical properties under 4 different land utilization types in a purple soil hilly region were analyzed.
依据定位观测数据，对紫色土丘陵区农用地土壤水分的动态变化规律进行了初步研究。
Soil physicochemical properties under 4 different land utilization types in a purple soil hilly region were analyzed.
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