Ethnomedicinal Aspects of some Weeds from Paddy Fields of Villupuram District in Tamil Nadu, India

Ethnomedicinal and Ecological Studies of some Weeds in Sugarcane Fields of Villupuram District

International Letters of Natural Sciences ◽

10.18052/www.scipress.com/ilns.16.197 ◽

2014 ◽

Vol 16 ◽

pp. 197-208

Author(s):

S. Dhanam

Keyword(s):

Relative Density ◽

Plant Species ◽

Relative Frequency ◽

Tamil Nadu ◽

Human Beings ◽

Ecological Studies ◽

Present Communication ◽

Crop Fields ◽

Sugarcane Crop

The present communication pertains to ethnobotany of major weeds of sugarcane fields in Villupuram district, Tamil Nadu. Present study was conducted in ten selected sites of Villupuram district in the sugarcane crop fields. Random quadrate method was adopted for studying phytosociological attributes of weeds. A total of 80 plant species belonging to 25 families were identified, out of which 46 plant species are medicinally important to cure different diseases in human beings directly. Amaranthaceae and Euphorbiaceae was the dominant family seen during observation. Frequency, Relative frequency, Density and Relative density of the species were calculated.

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Composition and Pattern of Vegetation Distribution at the Tree Level in the Forest Area of Sorong Nature Tourism Park

Agrologia ◽

10.30598/ajibt.v10i2.1424 ◽

2021 ◽

Vol 10 (2) ◽

Author(s):

Ponisri Ponisri ◽

Fajrianto Saeni ◽

Lona H. Nanlohy

Keyword(s):

Relative Density ◽

Plant Species ◽

Relative Frequency ◽

Tree Level ◽

Line Transect ◽

Importance Value Index ◽

Importance Value ◽

Nature Tourism ◽

Relative Dominance ◽

Important Value Index

This study aims to determine the species composition, frequency, density, dominance, important value index (INP) and the distribution of tree species. The method used in this research is the Line Transect Plot Method. The total area of the sample plots is 1 ha (10.000 m2) with a total of 25 sample plots, which are placed purposively at the study site. Observational data were analyzed according to the parameters and described qualitatively and quantitatively and presented in the form of tabulations and pictures. The composition of vegetation types in the Sorong Nature Tourism Park forest contains 50 plant species, namely 30 known families and 3 plant species not yet traded, scientific and family names. The number of tree levels is 36 species with the largest density value (K) for resak (Vatica papuana) and guava (Syzygium, sp ) which is 29.81/ha with a Relative Density (KR) of 15.897% with the smallest density value (K). 0.962/ha, and the value of relative density (KR) was 0.5128%, respectively. The largest frequency (F) value is found in guava with a value of 0.731, relative frequency (FR) of 13.19%, and the lowest value of frequency (F) is 0.038 %, the smallest relative frequency (FR) is 0.694%. With the largest dominance value (C) in resak plants of 2,561 and relative dominance of 15.95%, while the lowest dominance was 0.033 and relative dominance was 0.208%. Where the highest Importance Value Index (INP) is on the guava tree at 43.117 and the lowest Important Value Index (INP) is in the Trichadenia tree, sp 1.3964. The distribution pattern at the tree level is based on the morista index, which is spread in groups or in clusters.Keywords: Composition, Vegetation, Nature Park

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GENERAL BEHAVIOR AND VEGETATION ASSOCIATED WITH THE HABITATS OF ASSAMESE MONKEY (Macaca assamensis McClelland, 1840) ALONG KALIGANDAKI RIVER BANK, WESTERN NEPAL

Journal of Institute of Science and Technology ◽

10.3126/jist.v22i1.17761 ◽

2017 ◽

Vol 22 (1) ◽

pp. 110-119

Author(s):

Pavan Kumar Paudel ◽

Mukesh Kumar Chalise

Keyword(s):

Relative Density ◽

Plant Species ◽

Relative Frequency ◽

Sampling Method ◽

Field Survey ◽

River Bank ◽

General Behavior ◽

Assamese Macaques ◽

Dominant Plant Species ◽

Macaca Assamensis

This study was focused on Macaca assamensis general behavior and vegetation associated with their habitats in Kaligandaki River Basin at Baglung and Parbat Districts of Nepal. The field survey was conducted from December, 2015 to May, 2016 to explore the Assamese Macaque general behavior and vegetation associated with their habitats. Total area of 104.70 km2 was surveyed, vegetation analysis was done by random quadrates sampling method and behavioral data were collected by scan sampling method. A total of 47 individuals of Assamese Macaques (Macaca assamensis) were counted in four different troops. Total of 2240 scan samples were recorded from the four different troops during this study period the scan samples revealed that foraging was 47%, moving 28%, resting 14% and grooming 11%. In the context of daily activity pattern for aging time of Assamese monkey was found to be highest 54% in 15:00 to 18:00 observational phase and lowest 40% in the observational phase of 12.00 to 15.00 hours. Moving time of the Assamese monkey was found to be highest 33% in 12.00 to 15.00 observational phase and lowest 22% at 15:00 to 18:00 observational phase, resting time of Assamese monkey was found to be highest 15% in 09:00 to 12:00 hours and lowest 13% in 15:00 to 18:00 observational phase and Assamese monkey were seen mostly grooming 13% in 12.00 to 15.00 hours and lowest 10% in 15:00 to 18:00 observational phase. By quadrate sampling, 58 plant species with 716 number were recorded. Sal (Sorea robusta) was the dominant plant species with relative density 31.42% and relative frequency 8.376% which was followed by Tiju (Diospyros malabarica)with relative density 10.93% and relative frequency 8.376%.Journal of Institute of Science and TechnologyVolume 22, Issue 1, July 2017, page: 110-119

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Diversity and population dynamics of Odonata (Insecta: Odonata) in rice growing area of central Gujarat

Journal of Biological Control ◽

10.18311/jbc/2016/15597 ◽

2017 ◽

Vol 30 (3) ◽

pp. 149

Author(s):

V. B. Rohmare ◽

Darshana M. Rathod ◽

B. M. Parasharya

Keyword(s):

Population Dynamics ◽

Community Structure ◽

Relative Abundance ◽

Paddy Field ◽

Dominant Species ◽

Diversity Index ◽

Fish Farm ◽

Paddy Fields ◽

Point Count ◽

Point Count Method

Odonates diversity was studied in Paddy field of central Gujarat during 2012 to 2015. Total 39 species belonging to 25 genera, under six families and two suborders were recorded. Total 17 species of Zygoptera (damselflies) and 22 species of Anisoptera (dragonflies) were recorded. Community structure and population dynamics of adult odonates were studied at Lingda village during July to December, 2012 through monitoring their population by point count method on three microhabitats (paddy field, village pond and fish farm). Total seventeen species were encounterd in the point count. Diversity index (H’) was highest (2.13) for paddy fields followed by fish farm (2.07) and village pond (1.99). Evenness value of the odonates also ranged between 0.7 and 0.8. Total four species (Viz. Ditch Jewel (25.0%), Green Marsh Hawk (17%), Ruddy Marsh Skimmer and Coromandal Marsh Dart (16% each) were dominant species in all three microhabitats. Both the suborders Anisoptera (dragonfly) and Zygoptera (damselfly) showed similar trend of population fluctuation during the study. Relative abundance was higher and remained constant during 4th week of September to 2nd week of October.

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ANALISIS STRUKTUR KOMUNITAS MANGROVE DI KAWASAN SEKITAR PT. CONCH KABUPATEN BOLAANG MONGONDOW

JURNAL PESISIR DAN LAUT TROPIS ◽

10.35800/jplt.8.2.2020.30000 ◽

2020 ◽

Vol 8 (2) ◽

pp. 104

Author(s):

George L Pandeirot ◽

Antonius P Rumengan ◽

Carolus P Paruntu ◽

Surya Darwisito ◽

Medy Ompi ◽

...

Keyword(s):

Relative Density ◽

Relative Frequency ◽

Mangrove Species ◽

Species Frequency ◽

Breast Height ◽

Plot Size ◽

North Sulawesi ◽

Relative Cover ◽

Important Value Index ◽

Mangrove Structure

This research was conducted for four months of April-July 2020. The purpose of this study was to determine species density, species relative density, species frequency, species relative frequency, species cover, species relative cover, index of the importance of mangrove species in the area around PT. Conch Lolak District, Bolaang Mongondow Regency, North Sulawesi Province. This research was conducted for four months of April-July 2020. The method used was a quadratic plot of 6 stations. Data collection at each station was made with a plot size of 10 × 10 m2 to measure the diameter of a tree at breast height (DBH), which has a minimum trunk circumference of 16 cm. The results showed that there were five types of mangroves, namely R. apiculata, R. mucronata, B. gymnorhiza, S. alba, and X. granatum. The highest relative density of species at station 2, namely R. mucronate 62.96%, while the lowest value at station 3, namely R. mucronata 8.77%, the highest relative frequency value at station 4, namely R. mucronata 33.33%, whereas the lowest value was at station 5, namely B. gymnorhiza 25.00%, the highest relative closure value was at station 5, namely R. mucronata 30.91%, while the lowest was at station 2, namely R. apiculata 12.88%, and the important value index the highest was at station 3, namely R. apiculata 138.09% and the lowest value was at station 5, namely X. granatum 35.05%.Kata Kunci: Mangrove, Structure in areas around PT. Conch. Conch, Rhizopora Abstrak Penelitian ini dilakukan selama 4 bulan April-Juli 2020. Tujuan penelitian ini adalah untuk mengetahui kerapatan jenis, kerapatan relatif jenis, frekuensi jenis, frekuensi relatif jenis, penutupan jenis, penutupan relatif jenis, indeks nilai penting jenis mangrove yang ada di kawasan sekitar PT. Conch Kecamatan Lolak, Kabupaten Bolaang Mongondow, Provinsi Sulawawesi Utara. Penelitian ini dilakukan selama 4 bulan April-Juli 2020. Metode yang dipakai adalah plot kuadrat sebanyak 6 stasiun. Pengambilan data pada setiap stasiun dibuat plot dengan ukuran 10 × 10 m2 untuk mengukur diameter pohon setinggi dada (DBH) yang memiliki lingkar batang minimal 16 cm. Hasil penelitian menunjukkan bahwa ada 5 jenis mangrove yaitu R. apiculata, R. mucronata, B. gymnorhiza, S. alba dan X. granatum. Kerapatan relatif jenis tertinggi pada stasiun 2, yaitu R. mucronata 62,96%, sedangkan nilai terendah pada stasiun 3, yaitu R. mucronata 8,77%, nilai Frekuensi relatif jenis tertingi pada stasiun 4, yaitu R. mucronata 33.33%, sedangkan nilai terendah pada stasiun 5, yaitu B. gymnorhiza 25.00%, nilai Penutupan relatif jenis tertinggi pada stasiun 5, yaitu R. mucronata 30,91%, sedangkan terendah pada stasiun 2, yaitu R. apiculata 12,88%, dan Indeks nilai penting tertinggi pada stasiun 3, yaitu R. apiculata 138,09% dan nilai terendah pada stasiun 5, yaitu X. granatum 35,05%.Kata Kunci: Mangrove, kawasan sekitar PT. Conch, Rhizopora

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Organochlorine pesticide residues in plants and their possible ecotoxicological and agri food impacts

Scientific Reports ◽

10.1038/s41598-021-97286-4 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Rachna Chandra ◽

N. Sharpanabharathi ◽

B. Anjan Kumar Prusty ◽

P. A. Azeez ◽

Rama Mohan Kurakalva

Keyword(s):

Organochlorine Pesticide ◽

Plant Species ◽

Food Chain ◽

Tamil Nadu ◽

Agricultural Landscape ◽

Heptachlor Epoxide ◽

Human Beings ◽

Edible Plant ◽

Plant Parts ◽

Edible Parts

AbstractScientific investigations on levels of Organochlorine Pesticide (OCP) residues in plants largely consider the edible parts (crops, vegetables, and fruit plants). Though the non-edible parts of plants are not eaten by human beings directly, these parts are consumed by livestock and other animals, thereby facilitating the flow of chemical residues through the food chain. The objective of the present investigation was to evaluate the concentration of OCP residues in non-edible plant parts to provide insights on their potential ecotoxicological impacts. Eighteen OCP residues were extracted in nine different plant species (banana Musa acuminate, brinjal Solanum melongena, Casuarina equisetifolia, Eucalyptus globulus, lotus Nelumbo nucifera, paddy Oryza sativa, sugarcane Saccharum officinarum, tapioca Manihot esculenta, tomato Lycopersicon esculentum) following QuEChERS method. The concentrations of OCP residues in plant extracts were determined using Gas Chromatography coupled with Mass Spectrometry (GC–MS). The OCP residues, namely: γ-HCH (lindane), heptachlor epoxide isomer, dieldrin, endrin, endrin aldehyde and endrin ketone were found predominantly in seven plant species. Residues of γ-HCH (lindane) were reported in different parts of plant species such as stem (581.14 ng/g in paddy and 585.82 ng/g in tapioca) and leaf (583.3 ng/g in tomato). Seven samples contained residues of heptachlor epoxide isomer (512.53 to 1173.8 ng/g). Dieldrin was found in paddy stem (489.97 ng/g), tapioca stem (490.21 ng/g) and tapioca leaf (490.32 ng/g). The detected OCPs in the present study were 10–50 times higher than the Maximum Residue Limits (MRL, 0.01–0.1 mg/Kg) as prescribed in the Codex Alimentarius of the FAO/WHO. Their elevated concentrations in the plant parts therefore pose risk of contamination to the consumers in the food chain, including human beings those are dependent on the animals as source of protein. The findings of this study are the first report on residue levels of OCPs in non-edible plant parts in the agricultural landscape of Puducherry region, India. Since, this study assumes significance for the strategic location of Oussudu Lake, an interstate lake spread over Puducherry and Tamil Nadu states, regular monitoring of OCP residues in different environmental segments in strategic locations in both the states is suggested, which will help the authorities in devising a comprehensive environmental management plan aiming at the ecosystem at large.

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The Inventory and Composition Studies of Seagrass in Ratatotok Waters, District of Ratatotok, Southeast Minahasa Regency

JURNAL ILMIAH PLATAX ◽

10.35800/jip.7.1.2019.22592 ◽

2019 ◽

Vol 7 (1) ◽

pp. 98

Author(s):

Frani Mare ◽

Ferdinand F. Tilaar ◽

Laurentius Th. X. Lalamentik

Keyword(s):

Relative Density ◽

Relative Abundance ◽

Relative Frequency ◽

Seagrass Species ◽

Thalassia Hemprichii ◽

Halophila Ovalis ◽

Halodule Uninervis ◽

Cymodocea Rotundata ◽

Syringodium Isoetifolium ◽

Cymodocea Serrulata

This research was carried out in the coastal waters of Ratatotok Village with the purpose of: 1. Knowing the condition of aquatic environment at research location. 2. Identify seagrass species from Ratatotok waters. 3. To determine the composition of seagrass species which included: Species Density, Relative Density, Abundance, Relative Abundance, Domination, Relative Domination, Frequency, Relative Frequency and Important Values. 7 species from of 2 families were found in this research i.e. Cymodoceaceae (Cymodocea rotundata, Cymodocea serrulata, Syringodium isoetifolium, and Halodule uninervis) and Hydrocharitaceae (Enhalus acoroides, Halophila ovalis and Thalassia hemprichii). The number of seagrass stands in the research were ranged from 26-2699 individuals. Species density were found to range from to 9.51 to 987.06 / m². Relative density were varied from 0.72 to 75.08%. Frequency of occurence were also varied from to 0.69 to 8.46. Relative frequency were ranged from to 2,68-33.04%. Abundance were found to range from to 10.08-1046.88. Relative abundance were varied from 0.72-75.08%. The dominance were range from to 28.89-2998.89 and relative dominance from to 0.72-75.08%. The important value of seagrass in the Ratatotok waters showed that Syringodium isoetifolium had important value reaching to 183.20 %. important values of Cymodocea rotundata and Thalassia hemprichii were 41.93 % and 26.68 % respectively .In addition, these two species were consisted of relatively large individual size compared to other species.Keywords : Ratatotok, Seagrass, Important ValuesABSTRAKPenelitian ini dilakukan di Perairan Pantai Desa Ratatotok dengan tujuan untuk: 1. Mengetahui kondisi lingkungan perairan pada lokasi penelitian. 2. Mengidentifikasi spesies lamun di Desa Ratatotok. 3. Mengetahui komposisi spesies lamun yang meliputi: Kepadatan Spesies, Kepadatan Relatif, Kelimpahan, Kelimpahan Relatif, Dominasi, Dominasi Relatif, Frekuensi, Frekuensi Relatif dan Nilai Penting. Spesies lamun yang ditemukan di lokasi penelitian berjumlah 7 spesies dari 2 family: Cymodoceaceae (Cymodocea rotundata, Cymodocea serrulata, Syringodium isoetifolium, dan Halodule uninervis) dan Hydrocharitaceae (Enhalus acoroides, Halophila ovalis dan Thalassia hemprichii). Jumlah tegakan spesies lamun di lokasi penelitian berkisar antara 26-2699 individu, kepadatan spesies 9,51-987,06/m², kepadatan relatif 0,72-75,08 %, frekuensi kehadiran 0,69-8,46, frekuensi relatif 2,68-33,04 %, kelimpahan 10,08-1046,88, kelimpahan relatif 0,72-75,08 %, dominasi 28,89-2998,89 dan dominasi relatif 0,72-75,08 %. Nilai penting lamun di perairan Desa Ratatotok menunjukkan bahwa jenis Syringodium isoetifolium memiliki nilai penting yang mencapai 183,20 %. Untuk jenis Cymodocea rotundata dan jenis Thalassia hemprichii masing-masing memiliki nilai penting yakni 41,93 % dan 26,68 %. Selain itu jumlah indvidu kedua spesies ini banyak ditemui disertai dengan ukuran individu yang relatif besar dibandingkan spesies lainnya.Kata Kunci : Ratatotok, Lamun, Nilai Penting

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The Value of a Decrease in Temperature by One Degree Celsius of the Regional Microclimate—The Cooling Effect of the Paddy Field

Atmosphere ◽

10.3390/atmos12030353 ◽

2021 ◽

Vol 12 (3) ◽

pp. 353

Author(s):

Ya-Wen Chiueh ◽

Chih-Hung Tan ◽

Hsiang-Yi Hsu

Keyword(s):

Land Use ◽

Surface Temperature ◽

Paddy Field ◽

Research Area ◽

Paddy Fields ◽

Cooling Effect ◽

Field Temperature ◽

Bare Land ◽

The Face ◽

The Difference

In the face of climate change, extreme climates are becoming more frequent. There were severe droughts in Taiwan in 2020, 2014–2015, and 2002. In these years, the paddy fields were kept fallow to save water and transfer agricultural water to non-agricultural use. On the other hand, with global warming, the existence of paddy fields may be one of the natural solutions to regional temperature mitigation. This study used remote sensing to quantify the difference in temperature between paddy fields and urban areas. The result of overall surface temperature deductive analysis revealed that the temperature in the whole Taoyuan research area was 1.2 °C higher in 2002 than in 2003 because of fallowing of the paddy field, while in the Hsinchu research area, it was 1.5 °C higher in 2002 than in 2003, due to the same reason described above. In terms of the difference in land use, for the Hsinchu research area, the surface temperature deductive result showed that the average paddy field temperature in 2002 was 22.3 °C (sample area average), which was 7.7 °C lower than that of the building and road point and 4.3 °C lower than that of the bare land point. The average paddy field temperature in 2003 was 19.2 °C (sample area average), which was 10.1 °C lower than that of the building and road point and 8.3 °C lower than that of the bare land point. Then this study evaluated the economic valuation of the paddy field cooling effect using the contingent valuation method. Through the paddy field cooling effect and in the face of worsening extreme global climate, the willingness to pay (WTP) of the respondents in Taiwan for a decrease of 1 °C with regard to the regional microclimate was evaluated. It was found that people in Taiwan are willing to pay an extra 8.89 USD/per kg rice/year for the paddy for a decrease in temperature by 1 °C in the regional microclimate due to the paddy field. Furthermore, this study applied the benefits transfer method to evaluate the value of a decrease of 1 °C in the regional microclimate in Taiwan. The value of a decrease of 1 °C in the regional microclimate in Taiwan is 9,693,144,279 USD/year. In this regard, the economic value of 1 °C must not be underestimated. In conclusion, more caution is needed while making decisions to change the land use of paddy fields to other land uses.

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Effects of Contemporary Land Use Types and Conversions from Wetland to Paddy Field or Dry Land on Soil Organic Carbon Fractions

Sustainability ◽

10.3390/su12052094 ◽

2020 ◽

Vol 12 (5) ◽

pp. 2094

Author(s):

Di Zhao ◽

Junyu Dong ◽

Shuping Ji ◽

Miansong Huang ◽

Quan Quan ◽

...

Keyword(s):

Land Use ◽

Organic Carbon ◽

Soil Organic Carbon ◽

Constructed Wetland ◽

Paddy Field ◽

Heavy Fraction ◽

Light Fraction ◽

Paddy Fields ◽

Dry Land ◽

Natural Wetlands

Soil organic carbon (SOC) concentration is closely related to soil quality and climate change. The objectives of this study were to estimate the effects of contemporary land use on SOC concentrations at 0–20 cm depths, and to investigate the dynamics of SOC in paddy-field soil and dry-land soil after their conversion from natural wetlands (20 and 30 years ago). We investigated the dissolved organic carbon (DOC), light fraction organic carbon (LFOC), heavy fraction organic carbon (HFOC), and other soil properties (i.e., moisture content, bulk density, pH, clay, sand, silt, available phosphorous, light fraction nitrogen, and heavy fraction nitrogen) in natural wetlands, constructed wetlands, fishponds, paddy fields, and soybean fields. The results indicated that the content of DOC increased 17% in constructed wetland and decreased 39% in fishponds, and the content of HFOC in constructed wetland and fishponds increased 50% and 8%, respectively, compared with that in natural wetlands at 0–20 cm. After the conversion of a wetland, the content of HFOC increased 72% in the paddy fields and decreased 62% in the dry land, while the content of DOC and LFOC decreased in both types. In the paddy fields, LFOC and HFOC content in the topmost 0.2 m of the soil layer was significantly higher compared to the layer below (from 0.2 to 0.6 m), and there were no significant differences observed in the dry land. The findings suggest that the paddy fields can sequester organic carbon through the accumulation of HFOC. However, the HFOC content decreased 22% after 10 years of cultivation with the decrease of clay content, indicating that paddy fields need to favor clay accumulation for the purpose of enhancing carbon sequestration in the paddy fields.

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Design and Application about System of Plant Science Popularization Based on the QR Code

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.738-739.1303 ◽

2015 ◽

Vol 738-739 ◽

pp. 1303-1308

Author(s):

Jing Hua Han ◽

Ming Jia Li

Keyword(s):

New Media ◽

Plant Species ◽

General Public ◽

Raw Materials ◽

Plant Science ◽

Qr Code ◽

Human Beings ◽

Plant Resources ◽

Science Popularization ◽

The World

Plant is not only closely related to human beings’ life, but also an integral part of raw materials in production. Protection of nature and plant resources is an increasingly urgent needs around the world. Cognition is a prerequisite for the protection of plant. But the way of plant science popularization is old, the knowledge of plant is too obscure to the general public. The system of plant science popularization based on the QR code spreads the knowledge of plant with illustrations interactively, to facilitate ordinary users to learn, understand and identify plant species. The article will detail all aspects of development of the system, allowing more scholars to understand the digitized plant science popularization under the new media.

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