ICAR Research Data Repository for Knowledge Management
Evaluation of physical, chemical and morphological characteristics of Bhadiar micro-watershed in relation to soil erosion and crop productivity
KrishiKosh
View Archive Info| Field | Value | |
| Title |
Evaluation of physical, chemical and morphological characteristics of Bhadiar micro-watershed in relation to soil erosion and crop productivity
|
|
| Creator |
Vivekpal Singh
|
|
| Contributor |
Hadda, M.S.
|
|
| Subject |
soil degradation, irrigation, clay, land resources, silting, sand, productivity, carbon, economic resources, area
irrigation |
|
| Description |
The information on physical, chemical, and morphological characteristics is a prerequisite for efficient watershed management. The present study was undertaken to evaluate physical, chemical, and morphological characteristics of Bhadiar micro-watershed in relation to soil erosion and crop productivity. The studied pedons were either structure less or massive. The soils in the area were highly erodible as indicated by soil erodibility factor âKâ of universal soil loss equation. The infiltration rate was higher in middle and lower slope position as compared with upper slope position. The soil pH increased with increase in soil depth whereas EC, organic carbon, available N, P and K decreased with increase in depth in all the pedons. Silt content in all the pedons decreased whereas sand and clay content increased. Aggregate content, water holding capacity, saturated hydraulic conductivity decreased with decrease in depth to lower layers of horizons. Bulk density increased with increase in depth. Maize yield reduced to 31.4 q ha-1 at upper slope position from 38.5 q ha-1 at lower slope position. The productivity index ranged from 0.08 to 0.30 in the examined pedons. The slope per cent was found to be most significant factor in affecting the yield of maize crop followed by pH and calcium carbonate content. The nomographic âKâ is highly and significantly correlated with erosion ratio and most significantly and negatively correlated with clay/M.E. ratio. In the area, the water erosion, the distribution of water through rainfall and weathering interacts together and play a major role in affecting the soil texture of various slope positions and horizons. The relationships among organic matter content, runoff and sediment generation and transport needs to be investigated with different slope positions and transects. These relationships could help establish a link between easily measured topographic parameters and some specific soil properties needed to understand water flow along different slope positions which reduces time and cost of analysis.
|
|
| Date |
2016-10-24T15:56:28Z
2016-10-24T15:56:28Z 2011 |
|
| Type |
Thesis
|
|
| Identifier |
http://krishikosh.egranth.ac.in/handle/1/81572
|
|
| Language |
en
|
|
| Format |
application/pdf
|
|
| Publisher |
Punjab Agricultural University
|
|