四川紫色土退化及其防治
文献类型：期刊论文
| 作者 | 何毓蓉; 黄成敏 |
| 刊名 | 山地研究
 |
| 出版日期 | 1993 |
| 卷号 | 11期号:4页码:209-215;279 |
| 关键词 | 四川 紫色土退化 现状 成因 防治 |
| ISSN号 | 1008-2786 |
| 其他题名 | PURPLE SOIL DEGRADATION AND ITS CONTROL IN SICHUAN PROVINCE |
| 通讯作者 | 何毓蓉 |
| 中文摘要 | 四川紫色土的物理性退化、构造性退化,以及营养性退化中的氮素贫化、有效磷缺乏和有机质贫化等都比较严重。这主要受母质、生态和侵蚀等因素的影响。防治紫色土退化的措施有:重建紫色土生态保护系统,改土培肥以增强土壤“体质”和实施保护性耕作等。划分出四川紫色土退化防治区,并分区提出了防治途径。 |
| 英文摘要 | Based on classification and gradation of the degraded purple soils according to the Index System to Evaluate the Purple Soil Degradation in Sichuan Province,the present situation of the purple soil degradation was assessed. By means of frequent and statistical analyses,the trendency of the results by comparison with the two ways was quite accordant.The results determined by statistical analysis showed that the area of the physical , constitutional degradation,the deficiency of organic matter, nitrogen,and available phosphorus in the purple soils in Sichuan Province, respectively, reaches 150. 5, 116. 9, 144. 7, 217. 0, 166. 8 （×104 ha）,and is 37. 1, 28. 8, 35. 6, 53. 4, 41. 1（%） of the total area of the cultivated purple soils. All those demonstrated that the degradation of the purple soils in Sichuan Province is rather serious.The purple soil degradation in the province is influenced by the properties of bedrocks and parent materials,the constraints of soil substance circulation and soil erosion,etc. The practices of rebuilding the ecological protective system of the purple soils,ameliorating soils,and improving soil fertility to enforce the ability of soil reaction on degradation,renovating the traditional tillage system,and protectively tilling can be taken to guard from and control the purple soil degradation.According to the types and distribution of the purple soil degradation ,the distribution area of the purple soils in Sichuan Province was divided into 6 subregions of controlling soil degradation, i. e. the northern , central, southern, eastern, western subregions of Sichuan Basin and the subre-gion of Panzhihua-Xichang. In accordance with the characteristics of the subregions and principal types of the purple soil degradation, the basic countermeasures of controlling degradation of the subrgions had been proposed. |
| 学科主题 | 土壤学 |
| 分类号 | S157 |
| 收录类别 | CSCD ; 北大中文核心 |
| 资助信息 | 四川省应用基础研究专项经费资助项目(项目号:894090) |
| 语种 | 中文 |
| CSCD记录号 | CSCD:937969 |
| 公开日期 | 2011-08-08 |
| 源URL | [http://192.168.143.20:8080/handle/131551/3320]  |
| 专题 | 成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前） |
| 作者单位 | 中国科学院、水利部成都山地灾害与环境研究所 |
| 推荐引用方式 GB/T 7714 | 何毓蓉,黄成敏. 四川紫色土退化及其防治[J]. 山地研究,1993,11(4):209-215;279. |
| APA | 何毓蓉,&黄成敏.(1993).四川紫色土退化及其防治.山地研究,11(4),209-215;279. |
| MLA | 何毓蓉,et al."四川紫色土退化及其防治".山地研究 11.4(1993):209-215;279. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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