A Quantification of the Effects of Erosion on the Productivity of Purple Soils
文献类型: 外文期刊
第一作者: Zhao Li
作者: Zhao Li;Du Shuhan;Liu Gangcai;Zhao Li;Du Shuhan;Liu Gangcai;Zhao Li;Du Shuhan;Jin Jie
作者机构:
关键词: Purple soil;Erosion;Productivity;Impact characteristics;China
期刊名称:JOURNAL OF MOUNTAIN SCIENCE ( 影响因子:2.071; 五年影响因子:2.113 )
ISSN: 1672-6316
年卷期: 2012 年 9 卷 1 期
页码:
收录情况: SCI
摘要: Research on the effects of soil erosion on soil productivity has attracted increasing attention. Purple soil is one of the main soil types in China and plays an important role in the national economy. However, the relationship between erosion and the productivity of purple soils has not been well studied. The purpose of this research was to determine if soil depth, which is dependent on the rate of erosion, has an influence on crop yield and growth. Plot and pot experiments at different soil depths were performed. Results indicate that soils from different parental materials had different growth features and crop yields due to the differential fertility of the derived soils. The yield reduction rate increases exponentially with the depth of eroded soil (level of erosion). The yield reduction rate per unit eroded soil horizon (10 cm) is approximately 10.5% for maize and wheat.
分类号:
- 相关文献
作者其他论文 更多>>
-
Size fraction of phytoplankton and the contribution of natural plankton to the carbon source of Zhikong scallop Chlamys farreri in mariculture ecosystem of the Sanggou Bay
作者:Jiang Zengjie;Du Meirong;Fang Jinghui;Gao Yaping;Li Jiaqi;Fang Jianguang;Jiang Zengjie;Fang Jianguang;Zhao Li
关键词:phytoplankton;picoplankton;protist;microbial food web;Chlamys farreri
-
Expression analysis of two reverse duplicated small heat shock protein genes in rice (Oryza sativa L.)
作者:Guo Hong-xia;Zeng Wen-zhi;Feng Jing-lei;Tang Hui-wu;Bai Mei;Liu Yao-guang;Guo Jing-xin;Guo Hong-xia;Wang Chuang-yun;Zhao Li;Wang Lu-jun;Fan Tao
关键词:small heat shock proteins (sHSPs);expression characteristics;semi-quantitative RT-PCR;GUS staining;rice