scholarly journals KERAGAMAN JENIS TANAMAN PADA SISTEM PENGELOLAAN HUTAN KEMASYARAKATAN

2020 ◽  
Vol 3 (1) ◽  
pp. 41
Author(s):  
Destia Novasari ◽  
Rommy Qurniati ◽  
Duryat Duryat
Keyword(s):  
Plant Species ◽  
Community Forestry ◽  
Persea Americana ◽  
Piper Nigrum ◽  
Syzygium Aromaticum ◽  
Structured Interviews ◽  
Work Activity ◽  
Cropping Patterns ◽  
Durio Zibethinus ◽  
Environmental Functions

Community Forestry is a government policy that aims to reduce the rate of deforestation by involving local communities through optimal, fair, and sustainable use of forest resources while maintaining the preservation of forest and environmental functions. The diversity of plant species is one indicator of the preservation of forest and environmental functions. This study aims to determine the types of plants and cropping patterns carried out related to the characteristics of group members after obtaining Community Forest Utilization Permits. The study was conducted in December 2018. Data collection was carried out by structured interviews with members of the Sinar Harapan farmer group and direct observation in the field. Data is tabulated and analyzed descriptively. The results showed that the planting pattern used in Sinar Harapan group was a simple agroforestry pattern consisting of 8 types of intolerant plants namely avocado (Persea americana), petai (Parkia speciosa), areca nut (catechu area), durian (Durio zibethinus), jengkol (Archidendrom pauciflorum), bananas (Musaceae), candlenuts (Aleurites moluccanus), mahogany (Swietenia mahagoni) and 7 types of tolerant plants consisting of lemongrass (Cymbopogon citratus), cloves (Syzygium aromaticum), jaling (Archidendron bubalinum), chili (Capsicum frutescens) ), pepper (Piper Nigrum), nutmeg (Myristica fragrans), and coffee (Coffea). The diversity of plant species is influenced by farmer characteristics such as age, type of work, activity in the organization, land area, and the number of working days of farmers.

scholarly journals ASOSIASI LIANA DENGAN TUMBUHAN PENOPANGNYA DI BLOK KOLEKSI TAMAN HUTAN RAYA WAN ABDUL RACHMAN, PROVINSI LAMPUNG

2021 ◽  
Vol 1 (1) ◽  
pp. 1-11
Author(s):  
Paul Sukra ◽  
Indriyanto Indriyanto ◽  
Ceng Asmarahman
Keyword(s):  
Gliricidia Sepium ◽  
Persea Americana ◽  
Piper Nigrum ◽  
Survey Method ◽  
Piper Betle ◽  
Mikania Micrantha ◽  
Forest Park ◽  
Durio Zibethinus ◽  
Gnetum Gnemon ◽  
Aleurites Moluccana

Wan Abdul Rachman Forest Park (Tahura WAR) is an area to maintain nutrient cycling and a center for preservation of biodiversity in Lampung Province, one part of its management is a collection block that functions t            o conserve plants, including lianas. Therefore, this study aims to determine the type of liana, the type of support for the liana and the form of association between the liana plant and its supports. The research was conducted with a systematic double plot survey method with a sampling intensity of 2%. The data obtained were analyzed the level of association using the Ochiai Index (OI). The results showed that there were 5 types of lianas in the collection block, namely Piper nigrum, Piper betle, Vanilla planifolia, Passiflora edulis, and Mikania micrantha. Furthermore, 15 types of lianas were found, namely, Ceiba petandra, Theobroma cacao, Durio zibethinus, Hevea brasiliensis, Gnetum gnemon, Persea americana, Pithecellobium lobatum, Gliricidia sepium, Dalbergia latifolia, Naphelium lappiosa, Aleurites moluccana, Cocos speciosa, and nucifera and Intsia palembanica. The real associations in the research location between lianas and their supporting plants were durian and pepper, durian with betel, rubber with sembung, tangkil and sembung, jengkol with pepper, and sonokeling with passion fruit.

scholarly journals Identification of Tropical Plants Leaves Image Base on Principal Component Analysis

2020 ◽  
Vol 4 (1) ◽  
pp. 64-75
Author(s):  
Indra Laksmana ◽  
Hendra Hendra ◽  
Sri Aulia Novita ◽  
Fithra Herdian ◽  
Mohamad Riza Nurtam ◽  
...  
Keyword(s):  
Principal Component Analysis ◽  
Plant Species ◽  
Mangifera Indica ◽  
Leaf Shape ◽  
Principal Component ◽  
Component Analysis ◽  
Persea Americana ◽  
Commission Error ◽  
Tropical Plants ◽  
Durio Zibethinus

Difference and variation of leaves shape is usually used as primary identifier of the plant species. But some plants may have a similar leaf shape and thus require another more accurate identifier. This study applied principal component analysis (PCA) methods for identifying tropical plant species from the shape of the leaves. This method simplified the observed variables by reducing the dimensions of the information that is stored as much as 75%, so it did not eliminate important information and can save the data processing time. There were 100 images of leaves taken from several sides of the leaf in JPEG format with which the shape of leaves were look similar, like citrus (Citrus aurantifolia), durian (Durio zibethinus), guava (Psidium guajava), mango (Mangifera indica), jackfruit (Artocarpus heterophyllus), avocado (Persea americana), rambutan (Nephelium lappaceum), sapodilla (Manilkara zapota), red betel (Piper crocatum) and soursop (Annona muricata). Identification of those 10 kind plant leaves produced 97% accuracy rate. Measurement systems were designed using the K-fold Cross Validation with k = 10, the results of experiments shown omission error occurs on the leaves of guava, jackfruit and red betel while twice commission error were found on the leaves sapodilla and once on citrus leaves.

Pemanfaatan Tumbuhan Obat Tradisional oleh Etnis Sangihe di Kepulauan Sangihe Bagian Selatan, Sulawesi Utara (The Usage of Traditional Medicinal Plants by Sangihe Ethnic in the Southern Sangihe Islands, North Sulawesi)

2018 ◽  
Vol 8 (2) ◽  
pp. 45
Author(s):  
Chrisye Yustitia Pelokang ◽  
Roni Koneri ◽  
Deidy Katili
Keyword(s):  
Medicinal Plants ◽  
Traditional Medicine ◽  
Plant Species ◽  
Structured Interviews ◽  
Active Components ◽  
Plant Materials ◽  
Medical Practitioners ◽  
North Sulawesi ◽  
Traditional Medicinal Plants ◽  
Plant Families

Abstrak Tumbuhan obat merupakan tumbuhan yang menghasilkan satu atau lebih komponen aktif yang dipercaya oleh penduduk berkhasiat obat sehingga dimanfaatkan dalam pengobatan tradisional. Penelitian ini bertujuan untuk mengidentifikasi dan mengkaji spesies tumbuhan yang digunakan sebagai obat tradisional oleh Etnis Sangihe di Kepulauan Sangihe bagian Selatan, Sulawesi Utara. Pengambilan data dilakukan melalui wawancara terstruktur  yang diajukan kepada pengobat tradisional. Hasil penelitian menunjukkan adanya 38 spesies dari 25 famili tumbuhan yang dimanfaatkan sebagai tumbuhan obat oleh Etnis Sangihe bagian Selatan. Herba merupakan habitus tumbuhan yang banyak dimanfaatkan untuk bahan pengobatan. Bagian tumbuhan yang paling banyak digunakan sebagai obat yaitu daun. Cara pengolahan yang paling banyak digunakan adalah direbus. Jenis penyakit yang dapat diobati dengan tumbuhan obat sebanyak 22 jenis penyakit. Kata kunci: tumbuhan obat, obat tradisional, habitus, Kepulauan Sangihe Bagian Selatan Abstract             Medicinal plants are plants that produce one or more active components that are believed by local people as medicinal plants for traditional medicine practices. This study aimed to identify and to assess the plant species that used as traditional medicine by the Sangihe Ethnic in the Southern Sangihe Islands, North Sulawesi. Data collection was conducted by structured interviews to the indigenous medical practitioners. The results showed that 38 plant species from 25 plant families were used as medicinal plants by the Southern Sangihe Ethnic people. Herbs were plant habitus that were widely used for medicinal ingredients. The leaves were widely used as medicinal plant materials. Boiling was the most processing method for preparing medicinal herbs. There were 22 types of diseases that could be treated using medicinal plants. Keywords: medicinal plants, traditional medicine, habitus, Southern Sangihe Islands

scholarly journals Homegarden agroecosystems managed by Salar people on Qinghai-Tibet Plateau

2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Mingjing Zhu ◽  
Binsheng Luo ◽  
Ben La ◽  
Ruijie Chen ◽  
Fenggui Liu ◽  
...  
Keyword(s):  
Plant Species ◽  
Rural Areas ◽  
Production Systems ◽  
Farming Systems ◽  
Field Investigation ◽  
Tibet Plateau ◽  
Ecosystem Functions ◽  
Structured Interviews ◽  
Services Research ◽  
Qinghai Tibet Plateau

Abstract Background Salar is a Turkic-speaking Islamic ethnic group in China living mainly in Xunhua Salar Autonomous County (Xunhua or Xunhua County), Qinghai-Tibet Plateau. Salar people are skilled in horticulture and their homegarden (HG) management. They are regarded as the first people on the Qinghai-Tibet Plateau to practice horticulture, especially manage their HGs, traditional farming systems, and supplementary food production systems. Traditional knowledge of Salar people associated with their HGs always contributes significantly to the local livelihood, food security, ornamental value, and biodiversity conservation. The cultivation of different plants in HGs for self-sufficiency has a long tradition in China’s rural areas, especially in some mountainous areas. However, Salar traditional HGs have not been described. The present paper aims to report the features of Salar HGs mostly based on agrobiodiversity and its ecosystem services. Methods The methods used in this work included semi-structured interviews and participatory observation. A total of 60 households in three townships, 9 villages were surveyed. There are 4–12 family members in each household, aged from 20 to 86 years old. The homestead size is between 200 and 1200 m2. Plant species cultivated in Salar HGs were identified according to Flora of China. Based on a comprehensive survey of Salar HGs and related to background data, we identified and characterized the most important services and functions provided by Salar HGs. Results According to primary production systems, there are 4 different types of Salar HGs, including ornamental focus, product focus, dual-purpose and multi-purpose. In total, 108 (excluding weeds and bonsai) plant species were recorded in Salar HGs, within 43 plant families. The most important and frequently used plants are Rosa chinensis, Armeniaca vulgar, Prunus salicina, and Ziziphus jujuba. About 4 to 32 plant species were recorded in each homegarden. We found that the Salar HGs, as a typical agroecosyste, prossess multiple servcices and functions that directly benefit households according to the field investigation. Conclusion This paper reveals the floristic diversity of Salar HGs. It presents useful information in the homegarden agroecosystem of Salar people, such as HG types and species diversity in Salar HGs. Ecosystem functions and services research suggested that the Salar HG agroecosystem provides agroecosystem services mainly related to supply and culture services. Salar HGs are important as food supplement resources, aesthetics symbol, and cultural spaces.

scholarly journals Prioritization and Selection of High Biomass Energy Producing Plant Species at Boset District, Central Ethiopia: An Ethnobotanical Approach 

2021 ◽  
Author(s):  
Tinsae Bahru Yifru ◽  
Berhane Kidane ◽  
Amsalu Tolessa
Keyword(s):  
Plant Species ◽  
Sustainable Use ◽  
Biomass Energy ◽  
Calotropis Procera ◽  
Sampled Data ◽  
High Biomass ◽  
Structured Interviews ◽  
Acacia Senegal ◽  
Selection Of Species ◽  
Selection Of

Abstract Background: In Ethiopia, about 92.3% of all the biomass energy is consumed by domestic households and the demand is growing from 10-14%. However, there are little/no practical experiences or documented indigenous knowledge on how traditional people identify and select high biomass producing plant species with short rotation periods at Boset District. Therefore, the present study was aimed at: (1) selecting and documenting high biomass energy producing plant species at Boset District; (2) identifying major predictor variables that influence the prioritization and selection of species; and (3) develop a Generalized Linear Model (GLM) to predict the selection of species. Methods: A total of 96 informants comprising 59 men and 37 women between the ages of 18 and 81 were sampled. Data were collected using structured interviews, guided field walk, discussions and field observations. Results: Collected data indicated that 88.5% of the informants involved in firewood collection, while 90% practiced charcoal making. A total of 1533.60 Birr per household on average was earned annually from this activity. A total of 25 firewood and/or charcoal plant species were identified and documented at Boset District. Of these, Acacia senegal, Acacia tortilis and Acacia robusta were the three best prioritized and selected indigenous high biomass producing species. Prosopis juliflora, Parthenium hysterophorus, Azadirachta indica, Calotropis procera, Cryptostegia grandiflora, Lantana camara and Senna occidentalis further grouped under introduced fuelwood species. Prediction of GLM assured sampled Kebeles and source of income generated from fuelwood species positively and significantly (p<0.001) related to selection of species. Higher efficiency to provide energy and heat; little or no smoke or soot; easier to cut and split the wood and easier availability were some of the main selection criteria. Conclusions: This study provides valuable information in selection and documenting of high biomass producing plant species for proper management and sustainable use at Boset District. The three most selected species (A. senegal, A. tortilis and A. robusta) should be further evaluated at laboratory to determine their energy values.

scholarly journals JENIS DAN PEMANFAATAN TANAMAN OBAT DI DESA BUDI MUKTI SULAWESI TENGAH DAN PENGEMBANGANNYA SEBAGAI MEDIA PEMBELAJARAN

2018 ◽  
Vol 9 (1) ◽  
pp. 11-19
Author(s):  
Ni Made Mega Hariani
Keyword(s):  
Cocos Nucifera ◽  
Aloe Vera ◽  
Zingiber Officinale ◽  
Psidium Guajava ◽  
Persea Americana ◽  
Apium Graveolens ◽  
Piper Betle ◽  
Syzygium Aromaticum ◽  
Cordyline Fruticosa ◽  
Cocos Nucifera L

Penelitian ini bertujuan untuk mengidentifikasi jenis dan cara pemanfaatan tanaman obat yang dimanfaatkan sebagai bahan obat-obatan tradisional oleh masyarakat di Desa Budi Mukti Sulawesi Tengah dan pengembangannya sebagai media pembelajaran. Metode yang digunakan adalah metode survei dimana sampel diambil secara acak. Analisis pemanfaatan tanaman sebagai obat dilakukan dengan wawancara secara terbuka dengan masyarakat di sekitar lokasi penelitian. Hasil penelitian diperoleh 36 species tanaman yang berkhasiat obat, tergolong dari 29 familia yaitu: Cordyline fruticosa L. (andong), Pluchea indica L. (beluntas), Cocos nucifera L. (kelapa), Andrographis paniculata Ness. (sambiloto), Annona muricata L. (sirsak), Amaranthus hybridus L. (bayam), Apium graveolens L. (seledri), Ipomea reptans L. (kangkung), Ipmoea batatas L. (ubi jalar), Mamordica charantia L. (pare), Carica papaya L. (pepaya), Euphorbia tirucalli L. (petikan kebo), Orthosiphoon staminues Benth. (kumis kucing), Persea Americana Mill. (alpukat), Michelia alba (cempaka putih), Hibiscus rosasinensis L. (kembang sepatu), Cyclea barbata Miers. (cincau), Leucaena leucocephala L. (lantoro), Moringa oleifera (kelor), Psidium guajava L. (jambu biji), Syzygium aromaticum L. (cengkeh), Averrhoa bilimbi L. (belimbing wuluh), Pandanus amaryllifolius Roxb. (pandan wangi), Cymbopogon citratus L. (sere), Imperata cylindrical L. (alang-alang), Piper betle L. (daun sirih), Morinda citriffolia L. (mengkudu), Citrus aurantifolia L. (jeruk nipis), Manilkara kauki L. (sawo), Physalis angulate (ciplukan), Aloe vera L. (lidah buaya), Zingiber officinale Rosc. (jahe), Cucurma xanthorrhiza Roxb. (temulawak), Curcuma domestica Val. (kunyit), Zingiber purpureum Roxb. (bangle), dan Kaempferia galangal L. (kencur). Bagian tumbuhan yang dimanfaatkan untuk pengobatan antara lain; akar, batang, daun, bunga, buah, biji, kulit batang dan seluruh bagian tumbuhan dengan cara penggunaan yang berbeda-beda. Penelitian ini menghasilkan produk berupa buku saku sebagai media pembelajaran Biologi.  

scholarly journals Ethnomedicinal survey of plants and animals used by Daur ethnic group, Inner Mongolia, China

2020 ◽  
Author(s):  
Xue Li ◽  
Le-Tai Yi ◽  
Ya-Qiong Bi ◽  
Lei Zhang ◽  
Ya-Hong Sun ◽  
...  
Keyword(s):  
Plant Species ◽  
Cervus Elaphus ◽  
Cervus Nippon ◽  
The Body ◽  
Extensive Literature ◽  
Canis Lupus Familiaris ◽  
Structured Interviews ◽  
Medicinal Species ◽  
Natural Habitats ◽  
Medical Practices

Abstract Background: The traditional medical practices of the Daur region are an important element in Chinese ethnomedicinal knowledge. However, relatively little recording of traditional Daur medicine (TDM) has been carried out. As it is gradually being replaced by traditional Chinese medicine (TCM) and modern medicine, further research is urgently needed. Methods: We collected ethnobotany and ethnozoology data about their local name, parts used and diseases to be treated, dosage, and route for administration through semi-structured interviews with 114 informants (18 sessions), focus group discussions (6 sessions), and extensive literature reviews. Medicinal samples and specimens were collected during field investigations from June 2015 to October 2018. The diseases and ailments reported as being treated were classified according to the International Classification of Diseases 11 th (ICD-11). The expression correlation of medicine classification, medicine, and disease was assessed using Cytoscape 3.6.1 software. Quantitative indices such as informant consensus factor (ICF) and use value (UV) were used to evaluate the importance of ethnomedicinal data. Results: We documented 30 plant species (from 19 families) and 21 animal species (from 11 families). In the past, the majority of plant species were collected from natural habitats, but now they are mainly cultivated. The most widely utilized plants were herbs (21 species), followed by shrubs (4), trees (3), and fungus (2). The most utilized groups of animals were mammals (14 species), followed by birds (5), amphibians (1), and reptiles (1). Medicines were mostly administered orally (43) but were also applied externally (11) or delivered via both routes (9). Informants indicated that medicines were prepared via decoction (21), grinding (11), boiling (10), extraction (8), and burning (7). Medicines were taken as a drink (37), eaten (16), or made into pills and powders (7), but could also be administered as an ointment/wash (6), wrap/dressing (5), in the nose, eyes, and mouth (4), or as a fumigate (2). The TDMs investigated in this study treated 76 human diseases or ailments classified under 13 disease categories, based on the ICD-11. The highest ICF (1.00) was reported for neoplasms and visual system diseases and childbirth or the puerperium, followed by injury, poisoning, or other diseases resulting from external causes (0.92), and symptoms, signs or clinical findings, not elsewhere classified (0.82). The most used medicinal species were Cervus elaphus , Cervus nippon , Capreolus , Gallus , Canis lupus familiaris , Betula platyphylla , and Artemisia integrifolia . Conclusions: A substantial body of ethnobotanical and ethnozoological knowledge could lead to the development of new medicines. Therefore, research into Daur ethnic medicines is urgently required The current research can make an important contribution to the body of knowledge about the national medicine of the Daur people. This is particularly important because the younger generation is not interested in learning and preserving their traditional medical practices. The information documented in the present study will provide a useful basis for future investigations into the ethnopharmacological and traditional knowledge of the Daur region.

scholarly journals “A herder’s duty is to think”: landscape partitioning and folk habitats of Mongolian herders in a mountain forest steppe (Khuvsugul-Murun region)

2019 ◽  
Vol 15 (1) ◽  
Author(s):  
B. Gantuya ◽  
Á. Avar ◽  
D. Babai ◽  
Á. Molnár ◽  
Zs Molnár
Keyword(s):  
Plant Species ◽  
Northern Hemisphere ◽  
Habitat Preferences ◽  
Mountain Forest ◽  
Forest Steppe ◽  
Ecological Knowledge ◽  
Structured Interviews ◽  
Habitat Classification ◽  
Macro Scale ◽  
Conducting Research

Abstract Background Traditional habitat knowledge, like the classification of folk habitats and how people partition their landscape into habitats, is an emerging but still understudied part of traditional ecological knowledge. Our objectives were to reconstruct the folk habitats and the partitioning of the landscape into these folk habitats by Mongolian herders in Northern Mongolia and to compare it with other Northern Hemisphere boreal-temperate classifications. Methods The study area is located in Seruun Gilad (Khuvsugul province) and belongs to the mountain forest steppe of the Khangai region (dominated by meadow steppes and larch forests). Most herder families use the area for summer pasturing. Data collection was based on indoor and outdoor, structured and semi-structured interviews and interviews during landscape walks and participatory fieldwork. We interviewed 20 people using 76+ photos of plant species and 25+ photos of habitats and asked them to name and describe the habitats and describe the habitat preferences of the species. Results Mongolian herders distinguished at least 88 folk habitat categories and knew well the habitat preferences of the 76 plant species. They argued that a herder has to be observant of nature. The habitat classification was moderately lexicalized, with many descriptive expressions. Most habitats (77%) belonged to the meso-scale, while macro-scale habitats (like taiga, Gobi) and micro-scale habitats (like marmot burrow, top of the tussock) were few. Habitat names did not reflect directly the usefulness of the habitat. Classification was multidimensional; key dimensions were geomorphological and edaphic. There were some species (e.g., botyuul, hyag, shireg) and species groups (hot plants, leafy plants) that were often used to describe habitat types. Conclusions Landscape partitionings in the Northern Hemisphere differed considerably in the importance of various dimensions used, with edaphic, geomorphological, hydrological, and dominant species-based dimensions having higher importance, while land use, successional, and zoological dimensions having lower importance. We argue that conducting research on folk habitats will contribute to a deeper understanding of how nature is perceived by locals and to a more efficient management of the Mongolian pastures.

Urban Resources Initiative: A University Model for Clinical Urban Forestry Education

2021 ◽  
Vol 47 (1) ◽  
pp. 34-50
Author(s):  
Caroline Scanlan ◽  
Danica Doroski ◽  
Colleen Murphy-Dunning ◽  
Mark Ashton
Keyword(s):  
Community Engagement ◽  
Clinical Training ◽  
Online Survey ◽  
Community Forestry ◽  
Training Programs ◽  
Urban Forestry ◽  
Urban Neighborhoods ◽  
Structured Interviews ◽  
Social Competencies ◽  
Skill Sets

As urban land cover increases around the globe, it is increasingly important to train competent urban forestry professionals for the future. Urban Resources Initiative (URI), a program of the Yale School of Forestry and Environmental Studies and an affiliated New Haven-based nonprofit, has provided field experience and learning opportunities for professional graduate students in urban and community forestry for over 25 years. URI’s clinical training programs are uniquely designed to equip students with both technical skills and social competencies. They do this by working with local residents, municipal staff, and community leaders to promote community-based land and tree stewardship, restore neglected open spaces, and build social cohesion in urban neighborhoods. We used a mixed-method approach, which included semi-structured interviews with current and past URI interns as well as an online survey, to determine long-term impacts and learning outcomes from URI’s clinical training programs. We also evaluated archival program documents to examine key programmatic features and confirm interview and survey trends. Survey and interview responses revealed that in addition to having gained key technical field skills, interns also obtained skill sets associated with the social dimensions of urban forestry. One-third of survey respondents identified effective “strategies for community engagement” as the most significant learning outcome from their internship experience. URI’s program can serve as a unique and effective model for clinical training in urban forestry higher education, particularly for universities and nongovernment organizations interested in integrating a stronger social or community engagement component to their programs and curricula.

Effects of Multispecies Phytoremediation on the Fate of Phenanthrene and Pyrene in Soils

2013 ◽  
Vol 838-841 ◽  
pp. 2387-2394
Author(s):  
Sheng Wang Pan ◽  
Sheng Xian Cao ◽  
Mao Ping He ◽  
Li Jian Yang
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Plant Species ◽  
Aromatic Hydrocarbons ◽  
White Clover ◽  
Pollution Level ◽  
Mixed Cropping ◽  
Cropping Patterns ◽  
Polycyclic Aromatic

The potentials of three plant species, rape, alfalfa and white clover, separately or jointly on the degradation of polycyclic aromatic hydrocarbons (PAHs) in soils were estimated by pots experiments. Results showed that the presence of vegetation apparently enhanced the dissipation of PAHs at initial concentrations ranging from 20.05 to 322.06 mg·kg-1, but the efficacy enhanced varied greatly among plant species and cropping patterns. Within 70-day experiment, alfalfa and white clover showed higher efficiencies for the removal of PAHs than those of rape, and mixed cropping greatly enhanced the dissipation of PAHs as compared to single cropping. On average 74.87% of phenanthrene or 62.81% of pyrene were removed from soils with mixed cropping of rape and alfalfa, and 72.01% of phenanthren or 68.44% of pyrene removed by mixed cropping of rape and white clover. Under similar pollution level, PAHs accumulated in plant, irrespective of root and shoot, was much lower in mutli-planted treatments than in mono-planted ones. Results suggested a feasibility of the establishment of multispecies remediation for enforcing the dissipation of PAHs, which may also decrease the accumulations of PAHs in plant and thus reduce their risks to humans.

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