|
|
|
| Application of returning straw to field to improve the black soil quality in small watershed in black soil region of China |
| Cui Ming1,2,3,Cai Qiangguo1,2,3,Fan Haoming4 |
| 1.Key Laboratory of Water Cycle and Related Land Surface Processes;2.Institute of Geographic Sciences and Natural Resources Research; 3.Graduate University of Chinese Academy of Sciences: 100101,Beijing;4.College of Water Conservancy,Shenyang Agriculture University,110161,Shenyang: China |
|
|
|
|
Abstract The accumulating of organic materials of the black soil was stopped and the occurring of severe soil erosion caused by irrational farming works are the main reasons for degradation of the soil in typical black soil region of northeast china.While large surplus of straw of crops are burnt and the smoke caused by burning polluted the air there.And lots of facts are presented to demonstrate that the applicability of returning straw to field directly is good in this region.So returning straw to field directly is suggested to solve these problems in the project of soil improvement in small watershed of northeast China considering some technical problems and the resolutions.
|
|
Received: 06 June 2006
|
|
|
|
|
|
|
