scholarly journals SOIL - PLANT DEGRADATION AND THEIR INTER - RELATION AT SALINE DESERT ECOSYSTEM

2018 ◽  
Vol 6 (10) ◽  
pp. 214-223
Author(s):  
Pilania PK ◽  
◽  
N Parejiya ◽  
NS Panchal ◽  
◽  
...  
2016 ◽  
pp. 81-90 ◽  
Author(s):  
Pradeep Kumar Pilania ◽  
Nilesh Sundarjibhai Panchal

El ambiente edáfico tiene una significativa influencia en la productividad. La salinidad es uno de los principales factores que afectan negativamente a la vegetación. Se estudió un ecosistema desértico de la India (Pequeño Rann de Kutch; 7020 ha) para medir la influencia de las propiedades del suelo en la vegetación. Tanto la riqueza de especies (SR) como la densidad de hierbas y arbustos/árboles (17.018 plantas m-2 y 8.617 plantas 10 m-2) fueron mayores en el punto 4, con valores altos de OC, OM, N, P, Ca y Fe (0.684, 1.179, 0.059 %, 42.338 kg ha-1, 170.732, 32.016 mg kg-1) y bajos niveles de arcilla, EC y Na (33.654%, 9.441dSm-1 y 68.699 mg kg-1). Valores altos de arcilla, Na y EC con bajo Ca y Fe resultaron en bajas densidades de SR (lugares 2 y 5). Las bajas SR y densidad se deben a bajas concentraciones de OC, OM, N, P, Fe, Ca y alta concentración de arcilla, Na y EC.Soil environment have significant influence on the productivity of land. Salinity is one of the major factors which negatively affect the vegetation. To measure the influence of soil properties on vegetation, desert ecosystem in India (Little Rann of Kutch of 7020 ha) was studied. Species richness (SR) as well as density for herbs and shrubs/tree (17.018 plants m-2 and 8.617 plants 10m-2) was highest in the site 4, with high OC, OM, N, P, Ca and Fe (0.684, 1.179, 0.059 %, 42.338 kg ha-1, 170.732 and 32.016 mg kg-1) and low clay, EC and Na (33.654%, 9.441dSm-1 and 68.699 mg kg-1). High amount of clay, Na and EC with low Ca and Fe results into low density with low SR (site 2 and 5). Low SR and density are due to low concentration of OC, OM, N, P, Fe, Ca and high concentration of clay, Na and EC.


2021 ◽  
Vol 13 (12) ◽  
pp. 6660
Author(s):  
Marco Ferrante ◽  
Anuma Dangol ◽  
Shoshana Didi-Cohen ◽  
Gidon Winters ◽  
Vered Tzin ◽  
...  

Vachellia (formerly Acacia) trees are native to arid environments in Africa and the Arabian Peninsula, where they often support the local animal and plant communities acting as keystone species. The aim of this study was to examine whether oil pollution affected the central metabolism of the native keystone trees Vachellia tortilis (Forssk.) and V. raddiana (Savi), as either adults or seedlings. The study was conducted in the Evrona Nature Reserve, a desert ecosystem in southern Israel where two major oil spills occurred in 1975 and in 2014. Leaf samples were collected to analyze the central metabolite profiles from oil-polluted and unpolluted adult trees and from Vachellia seedlings growing in oil-polluted and unpolluted soils in an outdoor setup. We found that oil pollution had a stronger effect on one-year-old seedlings than on adult trees, reducing the levels of amino acids, sugars, and organic acids. While adult trees are mildly affected by oil pollution, the effects on young seedlings can cause a long-term reduction in the population of these keystone desert trees, ultimately threatening this entire ecosystem.


Hydrobiologia ◽  
1993 ◽  
Vol 267 (1-3) ◽  
pp. 179-189 ◽  
Author(s):  
John E. Reuter ◽  
Cathryn L. Rhodes ◽  
Martin E. Lebo ◽  
Mandy Kotzman ◽  
Charles R. Goldman

2018 ◽  
Vol 435 (1-2) ◽  
pp. 81-93 ◽  
Author(s):  
Yanfei Sun ◽  
Yuqing Zhang ◽  
Wei Feng ◽  
Shugao Qin ◽  
Zhen Liu

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