Effect of Plant Roots on Penetrability and Anti-Scouribility of Red Soil Derived from GraniteEnglish Full Text
WU WEIDONG; ZHENG SHIZHANG; LU ZHIHONG and ZHANG TAOLIN(Institute of Resouree and Environmental Science, Jiangxi Agmcultural University, Nanchang 330045 China)(Institute of Soil Science, the Chinese Academy of Sciences, P. O. Box 821, Naniing 210008 China
Abstract: Distribution of plant roots in a red soil derived from granite was investigated to study the effect of plantroots on intensifying soil penetrability and anti-scouribility by the double-cutting-ring and the undisturbedsoil-flume methods, respectively. The plant roots system consisting mostly of fibrils, < 1 mm in diameter,was mainly distributed in the upper surface soil 30 cm in depth. It can remarhably increase the penetrabilityand anti-scouribility of the red soil derived from granite. When the root density was > 0.35 root cm-2, theintensifying effect of roots on both the penetrability and the anti-scouribility could be described by exponentequations, △ Ks = 0.0021RD1.4826 (R2 = 0.9313) and △ As = 0.0003RD1.8478 (R2 = O.9619), where △ Ks isthe value of intensified soil penetrability, a As the value of intensified soil anti-scouribility and RD the rootdensity, especially in the top soils within 30 cm in depth where plant roots were conceotrated.
- Series:
(D) Agriculture
- Subject:
Fundamental Science of Agriculture; Agronomy
- Classification Code:
S154.4
- Mobile Reading
Read on your phone instantly
Step 1Scan QR Codes
"Mobile CNKI-CNKI Express" App
Step 2Open“CNKI Express”
and click the scan icon in the upper left corner of the homepage.
Step 3Scan QR Codes
Read this article on your phone.
- CAJ Download
- PDF Download
Download the mobile appuse the app to scan this coderead the article.
Tips: Please download CAJViewer to view CAJ format full text.
Download: 47 Page: 183-188 Pagecount: 6 Size: 188k
Citation Network
Related Literature
- Similar Article
- Reader Recommendation
- Associated Author