湖北省丘陵区冲垅冷浸田的危害特点与利用改良

Characteristics of waterlogging harm and ameliorative measures of cold waterlogged fields in hilly region of Hubei

冲垅冷浸田的危害特点是：水土温度低，泥烂田脚深，速效养分少，还原物质多。主要改良途径为：①以集流面为单位，建立微域农田生态系统；②建设梯形条田，改良土壤；③增施有机肥，实行配方施肥；④推广水旱轮作和高产栽培技术；⑤绿化山丘，保持水土。

The characteristics of cold water paddy soil are:low soil and water temperature;slush paddy and no plowpan;low readily available nutrients;high reducting matters.The following five measures may be taken for the amelioration.(1)build mini ecosystem of fields in a water collecting area.(2)terracing and improve the soil,(3)apply organic matters and balanced fertilization.(4)extend wet/dry land crops and cultural techniques for high yield.(5)afforest the hills and protect soil and water lossed.