东北黑土区土壤容许流失量与水土保持治理指标探讨  

Study on Criterion of Soil Loss Tolerance and Soil and Water Conservation in Black Soil Region of Northeast

作　　者：范昊明[1] 蔡强国[2] 郭成久[1] 王铁良[1] 苏芳莉[1] 崔明[2] 

机构地区：[1]沈阳农业大学水利学院,辽宁沈阳110161 [2]中国科学院地理科学与资源研究所,北京100101

出　　处：《水土保持学报》2006年第2期31-34,81,共5页Journal of Soil and Water Conservation

基　　金：沈阳农业大学青年科学基金资助项目;国家自然科学基金重点研究项目(40235056);国家自然科学基金面上项目(40271075);中国科学院知识创新工程重要方向项目(KZCX3-SW-422)

摘　　要：在明确土壤容许流失量概念与意义的基础上,指出了我国东北黑土区现行的土壤容许流失量标准存在的不足。参考国内外土壤容许流失量制定的影响因子,以成土速率、水土流失类型与强度、土层厚度为主要参考指标,并提出以我国现行及未来一定时期内,水土保持实践中可能达到的限制土壤侵蚀的极限,作为确定东北黑土区土壤容许流失量的重要参考指标。综合考虑对黑土区内72条小流域水土保持实践的调查结果,初步确定了东北黑土区主要水土流失类型区土壤容许流失量指标及水土保持治理指标。The concept and significance of the soil loss tolerance has been reviewed firstly, and then the shortcoming of the loss tolerance criteria being used in the black soil region of northeast China has been pointed out. In referencing to the experience in the world, the soil-forming process, the type and intension of soil loss and the depth of soil are the primary factors to constitute the loss tolerance criteria in the black soil region of northeast China, and especially, the high-point of soil loss control at present and a period of time in the future has been used as a most important factor for loss tolerance criteria constitution. Comprehensive analyzing the investigation result of soil and water conservation practice at 72 small watersheds in the black soil region of northeast China, the criteria of soil loss tolerance and soil loss control has been constituted for the primary soil erosion typical areas.

关 键 词：土壤容许流失量 影响因子 指标 东北黑土区 

分 类 号：S157.1[农业科学—土壤学]