| 宁南山区典型旱作农耕地土壤特性分析 |
| |
| 引用本文： | 蔡进军,蒋齐,张源润,王月玲,董立国,季波,李生宝.宁南山区典型旱作农耕地土壤特性分析[J].西北农业学报,2007,16(2):75-79. |
| |
| 作者姓名： | 蔡进军 蒋齐 张源润 王月玲 董立国 季波 李生宝 |
| |
| 作者单位： | 宁夏农林科学院荒漠化治理研究所,宁夏银川,750002 |
| |
| 基金项目： | 国家科技支撑计划;宁夏自然科学基金 |
| |
| 摘 要： | 对宁南山区3种典型耕地坡耕地、川道地和水平梯田进行了物理性质的分析,结果表明土壤容重表现为坡耕地>水平梯田>川道地,坡耕地土壤容重比水平梯田高9.24%,比川道地高14.04%。土壤团聚体总体表现为川道地优于坡耕地,坡耕地比水平梯田略好。土壤总孔隙度川道地为53.03%,水平梯田为50.54%,坡耕地为49.84%。毛管孔隙变化不大,非毛管孔隙,坡耕地小于川道地和水平梯田,土壤透气度川道地>坡耕地>水平梯田。0-80 cm土层土壤饱和持水量川道地>水平梯田>坡耕地,在耕作层则是坡耕地>川道地>水平梯田。毛管持水量坡耕地>川道地>水平梯田,田间持水量坡耕地>水平梯田>川道地,在0-40 cm则表现为坡耕地>川道地>水平梯田。土壤入渗趋势均表现为幂指数方程变化,土壤稳渗速率川道地为0.69 mm/min,坡耕地为0.64 mm/min,水平梯田为0.46 mm/min。
|
| 关 键 词： | 坡耕地 川道地 水平梯田 物理性质 |
| 文章编号： | 1004-1389（2007）02-0075-05 |
| 收稿时间： | 2006-11-16 |
| 修稿时间： | 2006-12-20 |
The Soil Characteristic Analysis of Model Dry Farmlands in the South Mountainous Area of Ningxia |
| |
| CAI Jin-jun,JIANG Qi,ZHANG Yuan-run,WANG Yue-ling,DONG Li-guo,JI Bo and LI Sheng-bao.The Soil Characteristic Analysis of Model Dry Farmlands in the South Mountainous Area of Ningxia[J].Acta Agriculturae Boreali-occidentalis Sinica,2007,16(2):75-79. |
| |
| Authors: | CAI Jin-jun JIANG Qi ZHANG Yuan-run WANG Yue-ling DONG Li-guo JI Bo and LI Sheng-bao |
| |
| Institution: | Institute of Desert Adminster, Ningxia Academy of Agriculture and Foresty Sciences,Yinchuan Ningxia 750002 China |
| |
| Abstract: | The physical property were analyzed in three kind of models slope field,flat field and the level terraced field in the south mountainous area of Ningxia,the result showed that soil volumetric weight slope field>level terraced field>flat field,soil volumetric weight of the slope field is higher than the level terraced field 9.24% and the flat field 14.04%,respectively.The soil aggregate display the flat field excelled the slope field,the slope field is slightly better than the level terraced field.Soil porosity of the flat field is 53.03%,the level terraced field is 50.54%,the slope field is 49.84%.The change of the capillary hole is not big.Non capillary hole of the slope fieldthe slope field>the level terraced field.From zero to eighty centimeter soil layer,the capacity of the saturated holding moisture is the flat field>the level terraced field>the slope field,in cultivation soil layer,which is the slope field>the flat field>the level terraced field.The moisture-holding capacity of the capillary is the slope field>the flat field>the level terraced field.The moisture-holding capacity of the field is the slope field>the level terraced field>the flat place,from zero to forty centimeter soil layer,which is the slope field>the flat field>the level terraced field.The tendency of the soil infiltration displays exponent exquation change,the soil infiltration velocity of the flat field is 0.69 mm/min,the slope field is 0.64 mm/min,the level terraced field is 0.46 mm/min. |
| |
| Keywords: | Slope field Flat field Level terraced field Physical property |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《西北农业学报》浏览原始摘要信息 |
| 点击此处可从《西北农业学报》下载免费的PDF全文 |
|
