摘要
松嫩平原黑土区属“雨养农业”区 ,水分的供需状况主要取决于大气降水和土壤水的供给 ,地下水主要供给井灌水稻。根据分析 ,松嫩平原黑土区大气降水季节分布不均 ,一般年份可以满足作物对水分的低水平需求 ,土壤水分起到调节作用 ,地下水资源基本能够满足现有水田面积的供给。图
Black soil area of Song Nen Plain belongs to a region where agricultural water supply is totally from rainfall. Condition of water supply and consumption is affected by rainfall and underground water. And underground water is mainly utilized to irrigate rice. The analysis showed that rainfall can meet lower plant's demand for water in normal year athrough it occurs unformally; Underground water is a secend supply of plants. And Resources of undergroud water can meet water consumption of present rice planting area.
出处
《农业系统科学与综合研究》
CSCD
北大核心
2000年第3期228-231,共4页
System Sciemces and Comprehensive Studies In Agriculture
基金
国家自然科学基金项目!(49890 330 - 4)
中国科学院"九五"特别支持项目 !KZ95 7- 0 4- 0 1
中国科学院"九五"重大项目!KZ95 1 -
关键词
黑土区
水分供需
农业水分
Black soil area, Water, Supply and Consumption
