| Autor: |
Yang Cuihong, Li Yong, Wang Xu, Chen Tingting, Guo Hao, Yang Jiangyi, Wu Zongmeng, Zhou Xiaoqi, Huang Zhigang |
| Jazyk: |
čínština |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Shuitu baochi tongbao, Vol 43, Iss 5, Pp 69-78 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
1000-288X |
| DOI: |
10.13961/j.cnki.stbctb.20230327.002 |
| Popis: |
[Objective] The suitable configuration ratios for contour planting and replanted sugarcane on slopes were determined in order to provide technical support for reducing slope ditch erosion and nutrient loss, improving cultivated land quality and rational sugarcane planting in sugarcane planting area. [Methods] Three configuration ratios (high, medium, and low) for contour planting and replanted sugarcane were evaluated. Slope-gully erosion and nutrient losses were determined by field measurements and laboratory experiments at the growth stages of establishment growth (EG), vegetative growth (VG), grand growth (GG), and ripening growth (RG), and the factors influencing erosion and nutrient loss were determined. [Results] ① During the total growth (TG) of sugarcane, the total nitrogen (TN) and total phosphorus (TP) losses caused by gully erosion on slopes planted to sugarcane in the Nala River basin were 31.3—66.3 t/hm2, 39.0—82.5 kg/hm2 and 18.0—38.4 kg/hm2, respectively. ② EG was the main stage of gully erosion and nutrient losses in the Nala River basin, accounting for 47.7%—57.7% of the total erosion and nutrient losses. ③ During TG, gully erosion and associated nutrient losses for higher contour ratios (HC) were 33.03%—35.42% lower than for lower contour ratios (LC) (p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
