Tamarix Aphylla Research Articles

English

A research study was conducted on Tamarix aphylla in August, 2008, in the experimental area of Department of Forestry, University of Agriculture Faisalabad, Punjab to find out the impact of vegetative propagation of Farash (T. aphylla) through different size of cuttings in open air and under low polytunnel. In this study, 2", 4" and 6" long cuttings were planted in shade in polythene bags, with nine holes, 3" wide and 7" long, made in each bag for irrigation purpose. The data was recorded twice a month on sprouting percentage, height of plant, root length and number of root branches for two months after initial planting in the month of August. Sprouting percentage and height of plants were maximum in T3 (6" long cuttings) and minimum in T1 (2" long cuttings) in both open air and low polytunnel, but overall the success rate was much higher under the low polytunnel. The measurement of roots length and number of roots branches was maximum in T1 than T3, in open air and low polythene tunnel. Key words: Tamarix aphylla, cuttings, growth, open air, polytunnel.

The remarkable role of rosemary officinalis & tamarix aphylla against radiation based therapy

The remarkable role of rosemary officinalis & tamarix aphylla against radiation based therapy

First report of a 16SrII phytoplasma associated with a witches' broom disease of Tamarix aphylla in Iran

Tamarisk (Tamarix aphylla) has been used for windbreaks near agricultural crops and as shade trees in rural desert margins in Iran. Symptoms associated with tamarisk witches' broom (TWB) disease, including proliferation of shoots with short internodes and little leaf symptoms (Figs. 1-2) were observed in 34% of trees surveyed in an area of 3500 ha in Chah Afzal (Yazd province, Iran) during 2014-15. Nested polymerase chain reaction using the P1/P7 primers (Deng & Hiruki, 1; Schneider et al., 5) followed by the R16mF2/R16mR2 and R16F2n/R16R2 primer pairs (Gundersen & Lee, 3) was carried out on DNA extracted from six diseased and three symptomless tamarisk plants. After 35 cycles, DNA fragments of c. 1.8, 1.4 and 1.25 kb respectively were obtained from each of the diseased tamarisk samples but not from symptomless samples. Restriction fragment length polymorphism (RFLP) analysis of R16F2n/R16R2 amplicons using AluI, HaeIII, HhaI, RsaI, MseI and TaqI restriction enzymes showed profiles identical to those of phytoplasmas belonging to the16SrII group. R16F2n/R16R2 sequences from six samples were identical to each other and a representative sequences was deposited in GenBank (Accession No. MF427724). BLAST analysis showed 99% nucleotide identity with other 16SrII-D phytoplasmas including parsley witches' broom phytoplasma (KU501295), which is also found in Iran. Phylogenetic analysis using the neighbour-joining method (MEGA7) showed that the TWB phytoplasma clustered within the 16SrII group closest to papaya yellow crinkle (PYC) phytoplasma (Y10097) which is the type strain of the 16SrII-D group. Computer-simulated analysis with seventeen restriction endonucleases using iPhyClassifier (Zhao et al., 6) showed that the RFLP pattern derived from the TWB phytoplasma 16S rRNA gene was different from the reference patterns of all previously established 16SrII subgroups. The most similar was the RFLP pattern of PYC phytoplasma (Y10097) with a similarity coefficient of 0.97. This is the first report of a 16SrII phytoplasma associated with TWB disease in Iran and worldwide. TWB disease occurs near field crops heavily infected with 16SrII phytoplasmas such as alfalfa witches' broom (Esmailzadeh Hosseini et al., 2) and sesame phyllody (Salehi et al., 4) in Yazd and therefore tamarisk may have an important role in the epidemiology of the disease.

Agroforestry Systems as Alternative Land-Use Options in the Arid Zone of Thal, Pakistan

Agroforestry offers unique opportunities for increasing biodiversity, preventing land degradation, and alleviating poverty, particularly in developing countries, but factors explaining the adoption by farmers are not well understood. A survey of 524 farm households was conducted in Bhakkar district of Punjab, Pakistan to study factors that determine the adoption of agroforestry on the sand dunes in the resource-deficient region of Thal. Two types of agroforestry systems were studied: intercropping and border cropping (also known as boundary or perimeter planting). Both agroforestry systems included irrigated cultivation of the timber trees Eucalyptus camaldulensis (local name: sufeda) and Tamarix aphylla (local name: sars) with wheat, chickpeas (Cicer arietinum) (local name: chana) or cluster beans (Cyamous tetragocalobe) (local name: guars). The majority of the farmers was in favour of intercropping and border cropping. Most farmers reported the protection of nearby crops from dust storms as the most important positive perception about both agroforestry systems. Age, education, and farm to market distance were significant determinants of agroforestry adoption. Older and less-educated farmers, with farms closer to markets were less likely to adopt tree planting or border cropping in Thal. In general, the agroforestry systems examined were more likely to be adopted by farmers who can wait 3–4 years for harvesting crop outputs, but not by poorer farmers who are totally dependent on subsistence agriculture and cannot afford the high initial cost of agroforestry establishment, nor can they wait for crop output for extended periods. Furthermore, the adoption of both agroforestry systems was more likely in remote marginal areas than in areas close to markets. To increase agroforestry adoption rates, government policies should strengthen farmers’ knowledge of every stage of agroforestry through extension services, focusing particularly among the prime prospects, i.e. farmers who will be most likely to adopt agroforestry. Once the prime prospects have adopted it, the older, less-educated, and poor farmers of the rural population can be also focused on to motivate adoption.

Hybridization affects life-history traits and host specificity in Diorhabda spp.

Hybridization is an influential evolutionary process that has been viewed alternatively as an evolutionary dead-end or as an important creative evolutionary force. In colonizing species, such as introduced biological control agents, hybridization can offset losses in genetic variation due to population bottlenecks and genetic drift. Increased genetic variation associated with hybridization could benefit biological control programs, by increasing the chances of establishment success. However, hybridization also can lead to the emergence of transgressive phenotypes, potentially including changes in host use; an important consideration when assessing potential non-target impacts of planned agents. In a series of laboratory experiments, we investigated the effects of hybridization between three species of Diorhabda released to control invasive Tamarix (saltcedar), evaluating effects on development time, adult mass, and fecundity over two generations for all three cross types, and over a third generation for one cross. Depending on the cross, hybridization had either a positive or neutral impact on the measured traits. We evaluated preference for the target (saltcedar) relative to a non-target host Tamarix aphylla (athel), and found hybridization influenced preference in two of the three cross types, demonstrating the possibility for hybridization to shape host use. The overall effects of hybridization varied by cross, suggesting that the outcome of hybridization will be difficult to predict a priori.

Identification of oral cavity biofilm forming bacteria and determination of their growth inhibition by Acacia arabica, Tamarix aphylla L. and Melia azedarach L. medicinal plants

ObjectiveBiofilms are complex, multi-species bacterial communities that colonize the oral cavity in the form of plaque and are known to cause dental caries and periodontal disease. Present study demonstrated the potential of three selected medicinal plants against isolated and identified dental biofilm forming strains. MethodsPathogenic bacteria from dental biofilms were isolated, cultured, identified by phylogenetic analysis using PCR-based 16S ribosomal RNA (or 16S rRNA) nucleotide sequences and were analyzed for their biofilm forming capability. The antimicrobial activity of the three important medicinal plant extracts (Acacia arabica, Tamarix aphylla L. and Melia azadirachta L.) was determined against the highest biofilm forming bacteria. ResultsPhylogenetic analysis revealed that the 19 strains belonged to Proteobacteria, Firmicutes and Actinobacteria. Among the 19 isolates, eleven strains were found to possess high biofilm formation capability comparatively and antimicrobial activity assay showed that the selected plants considerably inhibited their growth. Extract from A. arabica stem had strong effect on the ability of bacteria isolated from dental carries as evident by up to 73% reduction in biofilm formation on surface pre-treated with extract from this plant. The same extract also showed tremendous biofilm cleaning potential up to 87% of the biofilm. ConclusionThe results suggested that the extracts of selected medicinal plants could be used for protection against pathogenic dental biofilm causing bacteria and attempts should be taken by pharmaceutical industries to utilize it in dental caring products.

Characterization of ethno-medicinal plant resources of karamar valley Swabi, Pakistan

SummaryAn ethno-medicinal survey was conducted in District Swabi, Pakistan. Data were collected through field assessment as well as from traditional healers and local inhabitants by conducting personal interviews and questionnaires. Information about 63 medicinal plants belonging to 36 families was recorded. Some plants including Foeniculum vulgare Mill. (Apiaceae), Curcuma longa L. (Zingiberaceae), Cuscuta reflexa L. (Cuscutaceae), Fagonia arabica L. (Zygophyllaceae), Lepidium sativum L. (Apiaceae), Mirabilis jalapa L. (Nyctaginaceae), Ricinus communis L. (Euphorbiaceae), Tamarix aphylla L. (Tamaricaceae), Tribulus terrestris L. (Zygophyllaceae) and Zingiber officinale L. (Zingiberaceae) were found to be of great pharmacological interest for novel compounds and substitute for the antibiotics. Industrial relevanceMedicinal plants are still widely used for the treatment of different ailments in the area of Swabi, therefore survey of medicinal flora should be carried out to explore and bring up-to-date the catalogue of existing natural plant resources of the area especially in agricultural country like Pakistan. Small scale government processing units of agroforestry should be implemented to reduce the overuse and motivate the cultivation of valuable medicinal plants. Majority of the people use various formulations of medicinal plants for different ailments treatment. The phytochemicals greatly varied in medicinal plants and cause a marvelous effect on human illnesses. The objective of the present study was to document the information of folk medicines, its identification, collection of samples, study of its chemical constituents and uses by the local people of District Swabi, Pakistan.

Characterisation of above-ground endophytic and soil fungal communities associated with dieback-affected and healthy plants in five exotic invasive species

In Australia, several well-established invasive plant species have experienced unexplained dieback. To investigate this issue, we used internal transcribed spacer (ITS) amplicon pyrosequencing to characterise fungal communities within stems (endophytes) and soils associated with dieback-affected and healthy plants from populations of five exotic invasive species (Jatropha gossypiifolia, Mimosa pigra, Parkinsonia aculeata, Tamarix aphylla and Vachellia nilotica) across northern Australia. M. pigra and P. aculeata were sampled from multiple geographic regions. A total of 353 and 4926 fungal operational taxonomic units (OTUs) were identified in stem and soil samples, respectively. Members of Ascomycota were common, representing 75% of stem and 49% of soil OTUs. Four common endophytes, including Cladosporium perangustum, were at least 50% more prevalent in healthy than dieback-affected samples for the five invasive species combined. Fungal community structure within stem and soil samples varied among invasive species. For the two species sampled across multiple regions, M. pigra had similar fungal communities within stems among regions, but a significant difference in associated soil fungi, suggesting that host plant rather than environment determined endophytic communities in this species. Irrespective of the invasive species and sample type (stem vs. soil), no significant differences were observed in fungal richness, diversity or community structure between dieback-affected and healthy plants, either locally or regionally. Our work failed to identify fungi that were either unique or relatively more abundant in dieback than healthy plants in these invasive species. Future investigations of biotic factors other than fungi, such as bacteria, archaea and oomycetes, may provide more insights into the mechanism of the dieback phenomenon affecting these species.

Distribution of Halophyte Plants in Relation to Properties of Salt-Affected Soils of District Thatta

The main objective of this study was to survey and collect some halophyte species capable of growing in highly salt affected soils and their distribution in relation to some soil properties of district Thatta. Sueda fruticosa, Tamarix aphylla, Ceriops candoleana, Cynodon dactylon, and Chenopodum album species were collected form Thatta. Soil samples were collected from the vicinity of each halophyte and were analyzed for pH, organic matter (OM), electrical conductivity (EC), soluble Na+, Ca2+, Mg2+, HCO3-, Cl-, sodium absorption ratio (SAR), and exchangeable sodium percentage (ESP). Halophytes species collected were analyzed for ion (Na+, K+, Ca2+, Mg2+and Cl-) contents. Data regarding plant ionic composition showed that contents of Na+ ranged between 3.7-6.9 %, K+0.7-1.9 ,Ca+2 0.4--1.2 %, Mg2+ 0.6-2.2 and Cl- contents between 0.1-0.8 in species collected from Thatta, respectively. Data further revealed that maximum Na+ (6.9 and %) was recorded in Sueda fruticosa and Salsola indica, highest K+(1.9 %) was noted in Chenopodium album species, greatest Ca+2 (1.2 %) was documented in Sueda fruticosaspecies, highest Mg2+ (2.2 %) was observed in Sueda fruticosa whereas, maximum Cl- (0.8 %) was noted in Sueda fruticosa collected from district Thatta, respectively. Data pertaining to soil properties indicated that EC of studied soils ranged between 7.0-18.4dS m-1, pH 7.5-8.0. O.M 0.82-0.94 % , soluble Ca2+ 17.3-33.3 meq L-1, Mg2+ 15.5-24.6 meq L-1, Na+ 43.6-83.4 meq L-1 , Ka+ 3.20-4.50 meq L-1, HCO3? 2.4-5.3 meq L-1, Cl- 55.6-145.4 meq L-1, SAR 10.2-17.1 whereas, ESP ranged between 12.2-19.6 % in soil samples collected from Thatta, respectively. It was concluded that halophyte species Sueda fruticosa, Tamarix aphylla, gallica, Salsola indica, Cyperus irria accumulate significant amounts of salt (Na+ and Cl-)from salt-affected soil and, therefore, may remediate land to the point where native plants could invade and become established, or the site could be returned to agricultural productivity. These halophytes species have an excellent potential for rehabilitation of degraded salt affected soils.

Desert Dwelling Trees: Forage Suitability and Ethnobotany, Pakistan

Phytochemicals are primary and secondary compounds naturally occurring in the plants and trees that have defensive and protection mechanism from various diseases. Plant chemistry has been an integral component for man service as evident from history, providing substantial, entho-botanical and chemical remedies for locals in any subject area. The phyto-chemical profile of five desert dwelling tree species i.e. Salvadora oleides, Acacia nilotica, Prosopis cineraria, Tamarix aphylla and Ziziphus mauritiana was analyzed in Cholistan desert, Punjab, Pakistan. Photochemical analysis of air dried leaves/twigs powder confirmed the presence of alkaloids, flavonoids and saponins but no steroids during extraction. Moreover Chemical analyses revealed that crude fiber (CF) content was 16.67% and 6.67% in Prosopis cineraria and Acacia nilotica respectively, crude protein was found highest (2.62%) in Zizyphus mauritiana, slightly lower in Salvadora oleoides (2.36%) and minimum in Acacia nilotica (1.43%). Salvadora oleioides had highest (41.67%) ash content, while minimum in Prosopis cineraria (8%). Fat content (EE) was limiting as 5.33% in Acacia nilotica and lowest value in Salvadova oleoides (2.33%). Whereas, nitrogen free extract (NFE) was found maximum in Zizyphus mauritiana (72.22%). Results revealed species have high nutritional and medicinal values for livestock and local people.

Evaluation of Antioxidant, Anticholinesterase, and Antidiabetic Potential of Dry Leaves and Stems in Tamarix aphylla Growing Wild in Tunisia.

Tamarix aphylla (L.) Karst. has a wide geographic distribution and was employed in traditional medicine as astringent, anti-rheumatic and to treat fever. T. aphylla leaves and stems extracts were studied from both chemical and biological points of view to assess the antidiabetic, anticholinesterase and antioxidant potential of this species. The HPLC/Diode Array Detector (DAD) analysis showed the presence of 14 phenolic compounds (gallic, caffeic, p-coumaric, ferulic and ellagic acids, kaempferol, quercetin, quercetin 3-O-galactoside and six flavonol derivatives). This is the first study reporting a comparative study of the biological activities of different extracts from T. aphylla. High activities were obtained against DPPH radical, superoxide anion radical (O2∙-) and nitric oxide radical (• NO) in a concentration-dependent manner, the most active extracts being the polar ones. T. aphylla also showed moderate protective effects against acetylcholinesterase, but no effects were observed against butyrylcholinesterase. Against α-glucosidase the MeOH extracts displayed IC50 values from 8.41 to 24.81 μg/ml.

Green dyeing process of modified cotton fibres using natural dyes extracted from Tamarix aphylla (L.) Karst. leaves

This research work involves an eco-friendly dyeing process of modified cotton with the aqueous extract of Tamarix aphylla leaves. During this process, the dyeing step was carried out on modified cotton by several cationising agents in order to improve its dyeability. The influence of the main dyeing conditions (dye bath pH, dyeing time, dyeing temperature, salt addition) on the performances of this dyeing process were studied. The dyeing performances of this process were appreciated by measuring the colour yield (K/S) and the fastness properties of the dyed samples. The effect of mordant type with different mordanting methods on dyeing quality was also studied. The results showed that mordanting gave deeper shades and enhanced fastness properties. In addition, environmental indicators (BOD5, COD and COD/BOD5) were used to describe potential improvements in the biodegradability of the dyebath wastewater. Further, HPLC was used to identify the major phenolic compounds in the extracted dye.

Use of tree pruning wastes for manufacturing of wood reinforced cement composites

Tree pruning wastes from six woody species, namely Acacia salicina, Conocarpus erectus, Ficus altissima, Leucaena glauca, Pithecellobium dulce and Tamarix aphylla, were used to manufacture high-quality wood reinforced cement composites (WRCCs). Hydrations experiments were conducted to screen the compatibility of the selected tree pruning wastes with cement. Additionally, various particle pretreatments and chemical additives were applied to enhance the compatibility of wood with cement. The best treatment for each species was selected and used to manufacture the WRCCs. The panels were produced under specific manufacturing variables and the mechanical properties and dimensional stability of the panels were determined. The results indicated that both board density and wood/cement (W/C) ratio had significant effects on the properties of WRCCs. With few exceptions, a W/C ratio of 1/2 and either 1200 kg m−3 or 1300 kg m−3 produced the optimal strength properties. The tree pruning wastes are suitable for use as raw materials in the manufacturing of WRCCs after pre-treatment of the wood particles with either cold or hot water and with addition 3% of CaCl2, Al2(SO4)3 or MgCl2. Therefore, these wastes could be used as an alternative wood source for WRCCs.

Effect of salinity on tissue nutrient contents of the four dryland tree species of Indus flood plains

ABSTRACTSalinity is a common issue of semi-arid and arid lands rendering them unfit for agriculture. Saline wastelands can be converted into productive ecosystems by rehabilitating them with salt tolerant native tree species. The objective of this work was to study the effect of NaCl salinity on tissue nutrient contents of the four dryland tree species. Saplings were grown in pots under nonsaline and high salinity conditions. After eighteen weeks the plants were harvested and their tissue nutrient contents were analyzed. Results revealed that all species accumulated high amounts of Na+ under saline conditions, while concentrations of N, P and Mg2+ decreased in their tissues. Concentrations of K+ and Ca2+ showed more variable trend in various tissues in response to increase in soil salinity. Na+: K+ ratios of roots (1.57), stems (1.27), and leaves (1.66) of salinized Salvadora oleoides plants were lowest among all the four species. Root Na+: K+ ratio of salinized plants was significantly higher for Prosopis cineraria (7.10), while these ratios for stem (1.85) and leaf (3.42) were highest for Tamarix aphylla. Plants of P. cineraria showed lowest Stem-Na+/root-Na+ ratio (0.30) when subjected to salinity. Results showed that salinity induces nutrient deficiency in all species. Salinity tolerance of these species can be attributed to their ability to (i) restrict translocation of Na+ from roots to stem; (ii) keeping low tissue Na+: K+ ratios; and (iii) selectivity of K+ and Ca2+ over Na+, and can be used for the screening of salt-tolerant ecotypes for the rehabilitation of saline wastelands.

Phytochemical and Antimicrobial Properties of Tamarix aphylla L. Leaves Growing Naturally in the Abha Region, Saudi Arabia

In this study, antimicrobial activities of some solvent extracts of fresh and dry leaves of Tamarix aphylla against eight clinical isolates of bacteria and Candida and the chemical compounds present in the hexane extract were determined. The results showed that cold-water extract has no antimicrobial effect against any of the microbes tested, while hot-water extract showed 75 % antimicrobial activities against the same microbes. Extracts involving methanol, chloroform, petroleum ether, acetone and diethyl ether of dry and fresh T. aphylla leaves showed a 100 % lethal effect against all the tested pathogenic microbes. Additionally, superior performance has been observed in the cases of methanol extract against Proteus mirabilis, chloroform and diethyl ether extracts against Klebsiella oxytoca, petroleum ether extract against Candida sp. compared with the standard antibiotic drug. The GC–MS analysis revealed that the leaves contain ten different chemical compounds; propenoic acid (28.99 %) and beta-d-mannofuranose (23.04 %) are found to be dominant. In conclusion, extraction methods using polar and nonpolar solvents of T. aphylla leaves showed great antimicrobial effect on pathogenic tested microbes. This could be used in the treatment of infectious diseases caused by multidrug-resistant bacterial strains “that are resistant to multidrug treatment” and Candida sp. From the pharmaceutical viewpoint, the identified phytochemical in the T. aphylla is reported to be biologically important and needs further investigation with regard to isolations to develop the safe and cheap drugs.

Tribological properties of wood as a cellular fiber-reinforced composite

The relationships among microstructural, viscoelasticity, micro-hardness, elasticity modulus and tribological properties of wood are important for the understanding and bio-mimicking of fiber-reinforced composite materials. The microstructural, viscoelasticity, micro-hardness, elasticity modulus of wood and the friction between steel ball and wood have been studied. Results revealed that normal load and sliding speed had little effect on the friction coefficient of a hard much fiber wenge (Millettia laurentii). By contrast, sliding speed significantly affected that of a soft porous tamarisk (Tamarix aphylla). The groove of wood surface could store wear debris. The tamarisk had more groove shape vascular cells than the wenge so that the tamarisk friction coefficient was smaller than that of the wenge. Furthermore, the viscoelasticity of the tamarisk was higher than that of the wenge. The tamarisk friction force which was derived from the deformation resistance was smaller than that of the wenge resulting in the tamarisk friction coefficients being smaller. The micro-hardness and elasticity modulus of the tamarisk were lower than that of the wenge resulting in the friction interface contact surface being larger than that of the wenge. The tamarisk grinding trace sizes were bigger than that of the wenge.

Development and optimization of the extraction process of natural dye from Tamarix aphylla (L.) Karst. Leaves using response surface methodology (RSM)

The extraction of colorant from Tamarix aphylla (L.) Karst. leaves was optimized using response surface methodology (RSM). The combined effects of extraction conditions (sodium hydroxide concentration, sample weight, and extraction time and temperature) on the total phenolic content (TPC) and color yield (K/S) were studied using three-levels three-factors Box-Behnken design. The optimum conditions for dye extraction were found to be 0.25 mol/l, 65 min, 88 °C and 52.5 g/l for sodium hydroxide concentration, extraction time and temperature, and mass of the leaves powder respectively. The efficiency of extraction under these optimum conditions was found to be 1.12 g/l of phenolics and color yield equal to 11.20. Further, high-performance liquid chromatography analysis (HPLC) was used to identify the major phenolic compounds in the dye extract such as gallic acid, quercetin, luteolin, and kaempferon.

Ellagitannins, gallotannins, and gallo-ellagitannins from the galls of Tamarix aphylla

Chromatographic separation of an aqueous acetone extract of the galls from Tamarix aphylla using gels resulted in isolation of an ellagitannin, phyllagallin M1 (13), a gallo-ellagitannin, phyllagallin D1 (14), and four gallotannins, phyllagallin M2 (15) and phyllagallins D2–D4 (16–18), in addition to four known ellagitannins and three phenolics of lower molecular weight structurally related to hydrolyzable tannins. The structures of the six new tannins were elucidated based on spectroscopic and chemical data. Among the phenolics, flavogallonic acid dilactone (8), which is presumed to be biogenetically produced by C–C oxidative coupling of an ellagic acid unit with a galloyl residue, shows an exceptional oxidative pattern of gallic acid residues in plants of the family Tamaricaceae. Although the ellagitannin tamarixellagic acid (4) was reported to be a constituent of the galls of T. aphylla, such compounds with anomalous location of the DHDG moiety at O-3 on the glucopyranose core have not been observed among the tannins of tamaricaceous plants.

Large old trees need more conservation attention: A case of Tamarix aphylla in the arid deserts of the United Arab Emirates

Large old trees are often recognized for the provision of variety of ecosystem services to humanity. This paper reports the existence of a large old Tamarix aphylla (L.) Karst. tree in the Hamriyah area of Sharjah, the United Arab Emirates. Existence of such keystone structures spans many human generations and they become a historic link between the generations. Therefore, protection and recognition of more culturally, historically, and ecologically important trees by establishing a comprehensive tree list are crucial.

Production of humic substances and available nutrient status in soil profile under multipurpose tree species of arid and semiarid region

To study the effect of different tree species on organic carbon, production of humic substances and nutrient status in soil profile under different tree species, five blocks of different tree plantations, viz. Prosopis cineraria, Dalbergia sissoo, Acacia nilotica, Eucalyptus tereticornis and Tamarix aphylla were selected. Seven soil samples depth wise up to 150 cm from each soil profile including six one without plantation (control) was collected and analyzed for organic carbon, humic acid, fulvic acid and available nutrient status in soil. The organic carbon content decreased with increase in soil depth and highest organic carbon was found in surface layer of Dalbergia sissoo in comparison to other tree species and control. Similarly humic acid and fulvic carbon decreased with increase in soil depth and maximum humic acid was found under Dalbergia sissoo and in fulvic acid, it was highest under Acacia nilotica and minimum in control in both the cases. The available nutrients were decreased with increase in depth higher amount of nutrients were found under tree species as compared to control. It may be concluded that tree litter falling from Acacia nilotica, Dalbergia sissoo and Prosopis cineraria was stabilized enough and improved the availability of nutrients in soil. The intercrop may be taken up successfully between the trees of these plantations. In case of Eucalyptus tereticornis and Tamarix aphylla, more time is needed for stabilization and decomposition of litter for their better management and high returns.