Observations on the rooting patterns of some agroforestry trees in an arid region of north-western India

@article{Toky2004ObservationsOT,
  title={Observations on the rooting patterns of some agroforestry trees in an arid region of north-western India},
  author={Om Parkash Toky and Rashmi Bisht},
  journal={Agroforestry Systems},
  year={2004},
  volume={18},
  pages={245-263}
}
The present study deals with root architecture of 6-year-old trees of 9 indigenous and 3 exotic species growing in arid climate of north-western India. [] Key Result Observations, made on excavated root systems (3 tree replicates of each species) showed large variation in horizontal and vertical spread of roots.
Root biomass and distribution of five agroforestry tree species
TLDR
Results of this study infer that although all the species have potential to conserve moisture and improve fertility status of the soil, A. auriculiformis is the most effective for promoting soil fertility and will be preferred for cultivation under agroforestry systems.
STUDIES ON ROOTING PATTERNS OF 5-YEAR-OLD IMPORTANT AGROFORESTRY TREE SPECIES IN NORTH BIHAR, INDIA
TLDR
Analysis of rooting patterns of eight important multipurpose tree species suggest that all these species have potential for conserving moisture and improving the fertility status of the soil, but when grown with agricultural crops would need pruning of their lateral roots.
CHARACTERISTICS OF FIVE AGROFORESTRY TREE SPECIES IN EASTERN INDIA
DAS, D. K. & CHATURVEDI, O. P. 2008. Root phytomass recovery and rooting characteristics of five agroforestry tree species in eastern India. Knowledge of the quantitative assessment and structural
Soil physical conditions and root growth in coconut plantations interplanted with nitrogen fixing trees in Sri Lanka
TLDR
Investigation of the possibility of improving degraded soil conditions of Andigama series by intercropping coconut with Calliandra calothyrsus, Leucaena leucocephala, Acacia auriculiformis and Gliricidia sepium indicated that soil physical conditions could be significantly improved by interplanting acacia and gliricidi.
Root distributions in a Grevillea robusta-maize agroforestry system in semi-arid Kenya
TLDR
Competition between G. robusta and maize for soil water stored near the surface was unavoidable, although pruning reduced its impact; complementary use of water by the trees and crop would only have been possible if alternative sources of water were available.
Root and inorganic nitrogen distributions in sesbania fallow, natural fallow and maize fields
TLDR
A field study was conducted on a Kandiudalfic Eutrudox in the highlands of western Kenya to measure rooting characteristics and distribution of inorganic N and water in three land-use systems (LUS): Sesbania sesban (L.) Merr.
Bamboo hedgerow systems in Kerala, India: Root distribution and competition with trees for phosphorus
TLDR
Although nearness of bamboo clumps depressed root activity of teak and Vateria in the surface layers of the soil profile, root activity in the deeper layers was stimulated and 32P recovery was higher when applied at 50-cm depth than at 25-cm Depth implying the safety net role of tree roots for leached down nutrients.
Pruning effects on root distribution and nutrient dynamics in an acacia hedgerow planting in northern Kenya
Tree pruning is a common management practice in agroforestry for mulching and reducing competition between the annual and perennial crop. The below-ground effects of pruning, however, are poorly
...
...

References

SHOWING 1-10 OF 35 REFERENCES
Root biomass and surface area in three successional tropical forests
TLDR
The 1- and 8- year-old vegetations had proportionally more fine roots below 25 cm than the 70-year-old vegetation, but lacked the large-diameter roots characteristic of the 70,year- old stand.
Structure and function of traditional agroforestry systems in the western Himalaya. II. Nutrient cycling
TLDR
Agrihortisilvicultural system is remarkably efficient in view of biomass productivity for fuel, fodder and fruits, and also from nutrient point of view provided losses through harvest are compensated externally.
Some observations on the root growth of young apple trees and their uptake of nutrients when grown in herbicided strips in grassed orchards
TLDR
Root laboratory observations of the root growth of 4-year-old trees of Cox/M.26 planted in a herbicided strip in grass indicated that during the year 70% of the new growth occurred in the strip; the absorption of nitrogen into the leaves was greater in early summer than autumn.
Rooting of peatland black spruce and tamarack in relation to depth of water table
TLDR
There was a strong positive correlation between fine root biomass and depth of water table; however, total root biomass was not correlated with depth to water table and growth rates of both black spruce and tamarack were positively correlated with water table.
Growth of a sitka spruce plantation: Spatial distribution and seasonal fluctuations of lengths, weights and carbohydrate concentrations of fine roots
SummaryAs part of an investigation into the primary production of a forest the activity of fine roots was estimated by taking weekly soil cores from 24 May to 27 September in the 11 year of growth of
Structure and function of traditional agroforestry systems in the western Himalaya. I. Biomass and productivity
TLDR
Among three systems agrihortisilvicultural was highly diverse in vegetation, with as many as 13 tree and 5 agricultural crops mixed together, and this system showed the highest productivity up to 25.8 t ha−1 yr−1, out of which 68 percent was contributed by the trees and the remainder by the annuals.
The growth, activity and distribution of the fruit tree root system
SummaryThe paper reviews information, much of it obtained from studies using the East Malling root observation laboratories, on the growth and development of the fruit tree root system. The
Distribution of Radial Growth During the Development of Red Pine Root Systems
TLDR
The patterns of ring width throughout the root systems and stems of several 32- to 36-year-old, plantation-grown red pine were analyzed and the pattern of deposition of xylem at branching points was visualized as an interaction between the stream of growth regulators and assimilates towards the root tips.
Root dynamics in a young Scots pine stand in Central Sweden
TLDR
The results suggest a production and supply of dead fine-root material to the soil, considerably higher than that conventionally expected, in Scots pine Pinus sylvestris stand in Central Sweden.
Root turnover and productivity of coniferous forests
  • R. Fogel
  • Environmental Science
    Plant and Soil
  • 2005
SummaryFine roots and mycorrhizae have recently been shown to produce a major portion of the organic matter entering decomposition. Roots and mycorrhizae constitute 63 to 70% of total net primary
...
...