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The Potential Use of Wild Swamp Vegetables Through an Ethnobothanical Survey 通过民族调查研究野生沼泽蔬菜的潜在用途
Pub Date : 2020-07-17 DOI: 10.20527/jwem.v8i2.209
S. Sari, Fidhi Widya Sari, Eny Dwi Pudjawati
Swamp areas provide basic needs for local communities living in wetland areas, especially in the Banjar regency, South Kalimantan. Indigenous people called Banjarese or the Banjar are consuming wild swamp vegetables and processing them into traditional food combined with rice. The potential use of swamp plants for vegetables by Banjarese was investigated through an ethnobotanical study. The vegetables were obtained from three selected lowland swamps located in three villages of Banjar regency namely Panjambuan, Sungai Batang and Sungai Tuan Ilir. Wild swamp vegetables were identified using a semi structured questionnaire technique and the 72 key respondents were selected by a purposive sampling based on their interaction with swamps. Then they were classified into gender, and 4 groups based on their ages to determine knowledge level (Mg) in utilizing wild swamp vegetables. After that, their level knowledge was tested based on gender and ages using Kruskal Wallis test. Mann Whitney U-test was applied to distinguish the difference of knowledge level from ages and sex. The findings observed were six wild swamp vegetables used by Banjarese such as water spinach Ipomoea aquatica , genjer Limnocharis flava , hairy water lily Nymphaea pubescens , water mimosa Neptunia oleracea , taro Colocasia esculenta and swamp fern Stenochlaena palustris . All parts of the plants were used except for the roots. Leaves were preferably cookedwith 44,5% in comparison toother parts of plants like stem, flower, tendril and corm. Water spinach was frequently consumed by Banjarese compared to other plants. The knowledge level of local people was 67,84 categorized as a middle level and an elderly more than 60 years old had the highest knowledge level in using swamp plants compared to other groups. Moreover, women had better knowledge rather than men to utilize wild swamp plants for food.
沼泽地区为生活在湿地地区的当地社区提供了基本需求,特别是在南加里曼丹的班贾尔县。被称为Banjarese或Banjar的土著居民正在食用野生沼泽蔬菜,并将它们与大米混合加工成传统食物。通过民族植物学研究,探讨了班加利人利用沼泽植物作蔬菜的可能性。这些蔬菜是从班贾尔县三个村庄的三个选定的低地沼泽中获得的,即Panjambuan、Sungai Batang和Sungai Tuan Ilir。采用半结构化问卷法对沼泽野菜进行调查,并根据野菜与沼泽的互动情况,通过有目的抽样选出72个关键应答者。然后将他们分为性别,按年龄分为4组,确定他们利用野生沼泽蔬菜的知识水平(Mg)。之后,使用Kruskal Wallis测试对他们的水平知识进行基于性别和年龄的测试。采用Mann Whitney u检验来区分年龄和性别对知识水平的差异。对孟加拉人常用的6种野生沼泽蔬菜进行了研究,分别为:水菠菜(Ipomoea aquatica)、黄姜(genjer Limnocharis flava)、毛睡莲(Nymphaea pubescens)、水含羞草(Neptunia oleracea)、香芋(Colocasia esculenta)和沼泽蕨(Stenochlaena palustris)。除了根,植物的所有部分都被利用了。与茎、花、卷须和球茎等植物的其他部分相比,叶子的煮熟率为44.5%。与其他植物相比,水菠菜是巴尼亚人经常食用的食物。当地居民对沼泽植物利用的知识水平为67,中等水平为84,60岁以上的老年人对沼泽植物利用的知识水平最高。此外,女性比男性更懂得如何利用野生沼泽植物作为食物。
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引用次数: 0
Rendement and Characteristics of Wood Vinegar Produced from Ironwood Delinquent Waste through Clay Kiln Charcoaling Furnace 铁木废渣粘土窑炭化制备木醋的工艺及特性研究
Pub Date : 2020-07-17 DOI: 10.20527/jwem.v8i2.231
Muhammad Faisal Mahdie, Violets Violet, M. Helmi
The study aimed to determine the rendement of charcoal and wood vinegar and to identify wood vinegar chemical compounds made from ironwood deliquent waste. The study was carried out by using charcoaling facilities at the charcoaling center in the village of Asam – Asam. The charcoal and wood vinegar rendements  were determined after ironwood delinquent waste was heated for 21 days with a temperature of approximately 400 - 600 oC. The results showed that the rendement of the charcoal and wood vinegar were 14.02% and 0.05%, respectively. The research with wood vinegar characteristic before purification was pungent, however after purification, the results did not sting; color pH before purification was blackish-brown, however after purification it was pale brown yellow; the specific gravity before purification was 1.012 and after purification, it was 0.97; the pH before purification is 3.63 and after purification 3.41; and acid content before purification was 3.73% and after purification it was 3.66%. As a whole, the physics test of wood vinegar is categorized in Japan standard, however, the color only before purification is not standard. There are five chemical compounds identified in wood vinegar both before and after purification.
本研究的目的是确定木炭和木醋的还原过程,并鉴定由铁木废液制备的木醋化合物。这项研究是在Asam - Asam村的炭化中心使用炭化设施进行的。铁木废渣在400 ~ 600℃的温度下加热21天后,测定了木炭和木醋的含量。结果表明,木炭和木醋的溶出率分别为14.02%和0.05%。研究木醋纯化前有刺激性,纯化后无刺激性;纯化前的pH值为黑棕色,纯化后的pH值为浅棕黄色;纯化前的比重为1.012,纯化后的比重为0.97;纯化前pH为3.63,纯化后pH为3.41;纯化前酸含量为3.73%,纯化后酸含量为3.66%。从整体上看,木醋的物理测试是按照日本标准分类的,但是只有净化前的颜色是不标准的。木醋经纯化前后均鉴定出5种化学成分。
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引用次数: 2
Heavy Metals Contents and Histopathological Analysis of Some Organs of Fish Obtained from Payau River, Anggana, Kutai Kartanegara, Indonesia 印度尼西亚库泰卡尔塔尼加拉省安加纳帕约河部分鱼类器官重金属含量及组织病理学分析
Pub Date : 2020-07-17 DOI: 10.20527/jwem.v8i2.217
Sulistyawati Hidayat, I. Suyatna, A. Rafii, Ghitarina Ghitarina
The objectives of this study were to determine the heavy metals contents (Cd, Pb, Cu and Zn) in the body of some freshwater fish and to examine the histopathological changes of some organs.  The fish were obtained from Payau River located in Anggana, Kutai Kartanegara District, East Kalimantan, Indonesia.  There were four (4) species examined namely: Glass Fish ( Chanda sp), Croaker ( Micropogenias undulatus ), Lais ( Kryptopterus cryptopterus ), and spotted catfish ( Arius maculatus ).  Lead (Pb), Cadmium (Cd), Copper (Cu), and Zinc (Zn) were being analysed in the gills, livers, and the muscles of the fish.  The results showed that Pb and Cd were still low and fulfilled the the quality standard based on Indonesian National Standards Agency (INSA, 2009) and Directorate of Drug and Food Control No. 03725/B/SK/VII/89.  Cadmium concentration in the fish organ was < 0.003 mg/kg (Max. limit of Quality standard is 0.1 mg/kg) and Pb concentration was <0.002 mg/kg (Quality standard is 0.3 mg/kg).  Yet, Cu and Zn concentrations were exceeded the Quality standard as the levels were 2.63-2.93 mg/kg and 60.23 -65.55 mg/kg., respectively.  Based on Histopathological analysis of the gills, livers and muscles, the fish experienced edema, hyperplasia, vacuolar degenerative, necrosis and hemorrhagic ..
本研究的目的是测定一些淡水鱼体内重金属(Cd、Pb、Cu和Zn)的含量,并观察一些器官的组织病理学变化。鱼采自印度尼西亚东加里曼丹Kutai Kartanegara区Anggana的Payau河。其中玻璃鱼(Chanda sp)、Croaker (Micropogenias undulatus)、Lais (Kryptopterus cryptopterus)和斑点鲶鱼(Arius maculatus)共4种。对鱼的鳃、肝脏和肌肉中的铅(Pb)、镉(Cd)、铜(Cu)和锌(Zn)进行了分析。结果表明,铅和Cd的含量仍然较低,符合印尼国家标准局(INSA, 2009)和药品和食品监督管理局03725/B/SK/VII/89号的质量标准。鱼器官中镉的浓度< 0.003 mg/kg(最大;铅浓度<0.002 mg/kg(质量标准为0.3 mg/kg)。但铜和锌的浓度分别为2.63 ~ 2.93 mg/kg和60.23 ~ 65.55 mg/kg,超出了质量标准。,分别。根据鱼鳃、肝脏和肌肉的组织病理学分析,鱼出现水肿、增生、空泡变性、坏死和出血。
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引用次数: 2
The Linkage of El Niño-induced Peat Fires and Its Relation to Current Haze Condition in Central Kalimantan El Niño-induced泥炭火灾的联系及其与加里曼丹中部当前雾霾状况的关系
Pub Date : 2020-07-13 DOI: 10.20527/jwem.v8i2.221
N. Yulianti, K. Kusin, D. Naito, M. Kawasaki, O. Kozan, Kurniawan Eko Susatyo
fires in Indonesia. About thirty percent of the total fires are spread in Central Kalimantan Province. Symptoms of climate change in the form of increasingly frequent weather and extreme climate phenomena support the severity of forest and land fires which results in increased release of air pollution gases. In 2015, the peak fire months had emitted a high concentration of air pollutant gasses and causes hazardous air pollution. This study aims to investigate the latest severe fire occurrence and haze conditions in Central Kalimantan. Hotspot data was from 2006 to 2017, visibility data were from four times of El Nino event, Particle Matter Size 10 (PM 10) data and Pollution Standard Index (PSI) was from very strong El Nino in 2015 comparison to La Nina in 2016/2017. The results showed that the top incidents occurred not only very strong in 2015 but also weak El Nino in 2006. The most of dense hotspots density in the last twelve years (> 50% of fires in the area) found in peatlands in Pulang Pisau, Palangka Raya and Kapuas.  Palangka Raya's case, dangerous of APSI with PM10 concentrations of more than 500 µg m-3 occurred for 2 (two) months, from the end of August to the early of November 2015. The maximum peak concentration of PM10 is as high as 3000 μg m-3, which is higher than other fire years. Based on the data obtained, the haze was blanketed Palangka Raya was getting thicker at the end of October. As a result, visibility is decreasingly limited, only around 200 to 900 m during the peak season and air pollution-related-peat fire. Thus, this severe condition could rose multiple effects, which will exacerbate climate change, environmental sustainability and the livelihoods of thousands of peoples.
印度尼西亚发生火灾。大约30%的火灾发生在加里曼丹省中部。气候变化的症状表现为日益频繁的天气和极端气候现象,加剧了森林和土地火灾的严重程度,导致空气污染气体的释放增加。2015年,5个月的峰值排放了高浓度的大气污染气体,造成了危险的空气污染。本研究旨在调查加里曼丹中部最近的严重火灾发生和雾霾情况。热点数据来自2006年至2017年,能见度数据来自4次厄尔尼诺事件,颗粒粒径10 (PM 10)数据和污染标准指数(PSI)来自2015年强厄尔尼诺与2016/2017年拉尼娜的对比。结果表明,2015年的厄尔尼诺现象不仅非常强烈,而且2006年的厄尔尼诺现象也很弱。在过去12年中,最密集的热点地区(该地区火灾的50%以上)位于Pulang Pisau, Palangka Raya和Kapuas的泥炭地。Palangka Raya的案例中,从2015年8月底到11月初,PM10浓度超过500µg m-3的APSI危险发生了2个月。PM10最高峰值浓度高达3000 μg - m-3,高于其他5年。根据获得的数据,10月底,帕朗卡拉雅的雾霾覆盖范围越来越厚。因此,能见度越来越有限,在高峰季节和与空气污染有关的泥炭火灾期间,能见度只有200至900米左右。因此,这种严重的情况可能产生多重影响,这将加剧气候变化、环境可持续性和成千上万人的生计。
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引用次数: 7
Water Management and Soil Fertility Status at A Reclaimed Tidal Lowland of Telang Jaya Village, South Sumatra, Indonesia 印度尼西亚南苏门答腊岛Telang Jaya村开垦潮地的水管理和土壤肥力状况
Pub Date : 2020-07-10 DOI: 10.20527/jwem.v8i2.228
B. Bakri, M. Imanudin, Wahyu Chandra
Tidal lowland has a great prospect due to its vast area to support the improvement of national food security and the development of agribusiness system. Based on these potentials, it is necessary to study water management the physical dan chemical characteristics of soil on tidal land at Telang Jaya, South Sumatra. The aim of the study is to develop micro water management in the field level  for rice cultivation, and to evaluate the soil fertility in relation to the rice production.  The soil properties can be used to determine the level of soil fertility and the land management problem at the area. Research method was done by experimental research in combination with survey and monitoring. Rice was cultivated in tertiary block and the ground water table fluctuation was record in daily bases. Soil samples were taken from 0-20 cm depth (the root depth for common food crops) and then analyzed at the laboratory. The result had showed that the soil fertility status at Telang Jaya was low to moderate. The limiting factors of soil fertility found in this study were consisted of low nitrogent content, low C-organic content and acid soil condition (low bases and pH). Ground water taken at  February to March was maintained on 10 to (-10) cm related to the soil surface. It was sufficient for crop water requirement. Water management objective for second rice was mainaly for control drainage during the intial stage, and retain rainfall water. Pumping irrigation was required during Elnina climatic condition at generative phase. By proper water management system rice production could achive 5 ton/ha.
潮汐低地面积广阔,对保障国家粮食安全和农业综合经营体系的发展具有广阔的应用前景。在此基础上,有必要对南苏门答腊岛Telang Jaya潮地土壤的物理和化学特征进行水管理研究。本研究的目的是发展水稻种植的田间微水管理,并评价与水稻生产有关的土壤肥力。土壤性质可以用来确定该地区的土壤肥力水平和土地管理问题。研究方法采用实验研究与调查监测相结合的方法。水稻在第三系地块种植,地下水位波动以日为单位记录。土壤样品取自0-20厘米深度(普通粮食作物的根深),然后在实验室进行分析。结果表明,该区土壤肥力处于中低水平。土壤肥力的限制因素是低氮含量、低碳有机含量和酸性土壤条件(低碱、低pH)。2 ~ 3月采水量保持在距离土壤表层10 ~ (-10)cm。满足作物需水量。二稻的水分管理目标主要是控制初期排水,保持降雨水分。在厄尔尼诺气候条件下,在生育期需要抽水灌溉。通过适当的水分管理系统,水稻产量可达到5吨/公顷。
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引用次数: 1
Selection Of Municipal Wastewater Reuse Technology For Agricultural Water By Using Multi Criteria Analysis (MCA): The Case Of Walcheren Wastewater Treatment Plant, The Netherlands 用多标准分析(MCA)选择城市污水回用技术用于农业用水:以荷兰Walcheren污水处理厂为例
Pub Date : 2020-07-08 DOI: 10.20527/JWEM.V8I1.207
N. Marleni, Am Maisarah Lindawati, Luqman Saleh, Nurkhakim Andriani, R. Ermawati, Nitis Aruming Firdaus
The water demands for agricultural purposes are increasing along with the population growth. Unfortunately, the water source is not sufficiently available nowadays. Furthermore, the quality of available water is more deteriorated due to the contamination from many sources such as households, industrial areas and other activities. Water board Scheldestromen handles 16 wastewater treatment plants located in Province of Zeeland in The Netherlands. The total production of treated effluent water from 16 wastewater treatment plants is 50 million annually. Quality of the effluent is relatively good, however, some potential risks related to the number of pathogenic microorganism and some trace metals are still there. The treated effluent is mostly discharged to river near to the treatment plant. The high amount of effluent discharge would potentially to be re-used for fulfill the demand for agricultural water. Therefore, this study aims to evaluate the feasibility of treated effluent from one of Walcheren wastewater treatment plants located in Ritthem, Province of Zeeland. This study uses the method of Multi Criteria Analysis (MCA) for looking the best way to re-use the effluent for agricultural purposes. The MCA questionnaire was developed based on the thorough literature review of effluent reuse. There are 6 criteria that need to be weighted and 6 scenario alternatives that need to be scored for the MCA questionnaire. The result show that the effluent water contained pathogenic bacteria (E.Coli) and some trace metals (Ni and Cu) more than suggested by FAO standard. Hence the most preferred technology is combination between closed conduits and UV system, with weighted score 0.78 while others had less weighted score compared to the selected one
随着人口的增长,农业用水需求也在不断增加。不幸的是,现在水源不足。此外,由于家庭、工业区和其他活动等许多来源的污染,可用水的质量更加恶化。Scheldestromen水务公司位于荷兰泽兰省,负责处理16家污水处理厂。16个污水处理厂每年处理的废水总量为5000万欧元。出水水质较好,但仍存在病原微生物数量和部分微量金属的潜在风险。处理后的污水大部分排放到处理厂附近的河流中。大量的废水排放有可能被重新利用,以满足农业用水的需求。因此,本研究旨在评估位于泽兰省里特姆的Walcheren污水处理厂之一的废水处理的可行性。本研究使用多标准分析(MCA)的方法来寻找将废水重新用于农业目的的最佳方法。MCA问卷是在对污水回用的相关文献进行深入研究的基础上编制的。MCA问卷有6个需要加权的标准和6个需要评分的方案选择。结果表明,出水中致病菌(大肠杆菌)和部分微量金属(镍、铜)含量均超过粮农组织标准。因此,最受青睐的技术是封闭管道与UV系统的结合,其加权得分为0.78,而其他技术的加权得分低于所选择的技术
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引用次数: 2
Potency of Cell Wall Protein of Pasteurella multocida as Hemorrhagic Septicemia Vaccine on Swamp Buffaloes 多杀性巴氏杆菌细胞壁蛋白作为沼泽水牛出血性败血症疫苗的效力研究
Pub Date : 2020-07-08 DOI: 10.20527/JWEM.V8I1.200
H. Herliani, A. Sulaiman, M. I. Hidayat
Vaccine candidate tests were carried out in the Laboratory of Microbiology, Faculty of Agriculture ULM; and the Laboratory of Molecular Genetics, Faculty of Science and Technology Airlangga University. The field test was conducted in Tampakang Village, Hulu Sungai Utara district and Bati-Bati village, Tanah Laut district that was including sterility test through vaccine mediated Brain Heart Infusion (BHI) inoculation. Safety testing was applied in experimental animals (mice and swamp buffaloes). Serum was tested serologically using Enzyme Linked Immuno Sorbent Assay (ELISA). Vaccine safety test showed 100% of mice and buffalo are surviving without clinical symptoms according to the characteristics of hemorrhagic septicemia disease. ELISA test indicated vaccinations increase antibody production, namely the Optical Density (OD) ƛ 450 ƞm 0.292 before vaccination to be 0.748 and 1.576 after vaccination and to be 1.821 after boosted. Based on sterilization test, safety test, and vaccine potency test, the vaccine candidate from cell wall proteins of P. multocida local isolate can be used to prevent hemorrhagic septicemia disease that infect swamp buffalo both on laboratory and field experiment.
候选疫苗试验在乌拉尔大学农学院微生物学实验室进行;和Airlangga大学科技学院分子遗传学实验室。在Hulu Sungai Utara县的Tampakang村和Tanah Laut县的bti - bati村进行了现场试验,包括通过疫苗介导的脑心脏输注(BHI)接种进行无菌试验。对实验动物(小鼠和沼泽水牛)进行了安全性试验。采用酶联免疫吸附试验(ELISA)对血清进行血清学检测。疫苗安全性试验表明,根据出血性败血症的特点,小鼠和水牛100%存活,无临床症状。酶联免疫吸附试验表明,接种疫苗可增加抗体的产生,即接种前的光密度(OD) 450 ƞm 0.292,接种后为0.748和1.576,增强后为1.821。通过灭菌试验、安全性试验和疫苗效价试验,从多杀假单胞菌本地分离株细胞壁蛋白中分离得到的候选疫苗可用于防治沼泽水牛出血性败血症。
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引用次数: 0
The Effect of Locus of Control, Learning, and Adversity Quotient towards Micro Business Success (Study on Entrepreneurship under Foster Group of the Banjarmasin Regional Government) 控制源、学习和逆境商对微商成功的影响(基于班加马辛地方政府培育小组的创业研究)
Pub Date : 2020-07-08 DOI: 10.20527/JWEM.V8I1.215
T. Agustina, Wida Gerhana, S. Sulaiman
Micro, small and medium entrepreneurs are the economic drivers at the lower levels and they generally rely on the ability of human resources. Nevertheless, they will be extraordinary if all their potential is nurtured, explored and developed because the factors that trigger success are not only determined by external conditions, but also internal conditions. Among the internal factors that spur one's success are locus of control, learning, and adversity quotient. This study aims to examine the partial and simultaneous effects of locus of control, learning, and adversity quotient on business success. The research respondents were a foster group of entrepreneurs under Banjarmasin, total 1881 people. With the Slovin formula, 100 respondents appear. The results of the study showed partially that the t value of the effect of locus of control on business success was 3.046. T value calculated the effect of learning on business success was 2,150. T value calculated the effect of adversity quotient on business success was 4.924. Thus, adversity quotient had the most dominant influence on business success. The correlation coefficient of 51,944 and the probability value between variables of 0,000 indicate a significant effect between locus of control, learning, and adversity quotient on business success simultaneously. Finally, it was found that R square 0.619 means 69.1% where business success can be explained by the locus of control, learning, and adversity quotient variables; the remaining 30.9% was explained by other factors. The research findings that the guidance provided must be ongoing, not only with training, but also need to foster mental and spiritual change as a true entrepreneurship through strong locus of control, continuous learning, and high adversity quotient.
中小微企业家是底层的经济动力,他们一般依靠人力资源的能力。然而,如果他们所有的潜力都得到培育、探索和发展,他们将是非凡的,因为触发成功的因素不仅由外部条件决定,而且由内部条件决定。在刺激一个人成功的内在因素中,有控制点、学习和逆境商。本研究旨在探讨控制源、学习、逆境商对企业成功的部分及同时影响。调查对象是Banjarmasin麾下培养的一批企业家,共有1881人。根据斯洛文公式,出现了100个受访者。研究结果部分显示控制源对企业成功影响的t值为3.046。T值计算出学习对商业成功的影响为2150。T值计算出逆境商对企业成功的影响为4.924。由此可见,逆境商对企业成功的影响最为显著。相关系数为51,944,变量间的概率值为0000,表明控制源、学习和逆境商同时对企业成功有显著影响。最后,我们发现R平方为0.619,即69.1%,其中企业成功可以被控制源、学习和逆境商变量解释;剩下的30.9%是由其他因素解释的。研究发现,所提供的指导必须是持续的,不仅是培训,还需要通过强大的控制点,持续学习和高逆境商来促进心理和精神上的变化,从而成为真正的企业家。
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引用次数: 10
Study on The Structure of The Trees Population in The Maluka Riverside as A Subject Matter to Development of The Plants Ecological Handouts 马鲁卡河畔树木种群结构与植物生态讲义开发研究
Pub Date : 2020-07-08 DOI: 10.20527/JWEM.V8I1.166
D. Putra, Mahrudin Mahrudin
Understanding the population structure is one of the best ways to recognize the population in a plant as a whole. The riverside Maluka of Tanah Laut District is the swamps and river found herbs having an important role to play in maintaining the structure of the soil from the erosion of the river running on the area. Employing the descriptive method, this research attempts to describe population of structure plants of the riverside Maluka. The sample of structure plants are those on both edges of the riverside, namely: 1500 meters long and 2 meters wide. The data were collected by using the transect The results showed that there were 13 plants species  trees with the different population structure. There are four plants with population structure of polygonnamely; Mangifera indica , Flacourtia rukam ,  Antidesma Ghaesembilla , and Melaleuca cajuputi . There are six plants of width-based population structure of width, namely; Gluta renghas , Acacia auriculiformis , Syzygium sp., Syzygium guineense , Pisonia sp., Cassia alata . There are two plants in the forms of basin or pitcher, namely; Mangifera casturi and Fagraea crenulata . Plants that have population structure of reversed polygon is called Lagerstroemia speciosa.
了解种群结构是认识植物整体种群的最好方法之一。Tanah Laut地区的河边Maluka是沼泽和河流,草本植物在保持土壤结构免受河流侵蚀方面发挥着重要作用。本文采用描述性方法,对马鲁卡河滨构造植物种群进行了描述。结构植物样本为河岸两侧的植物,即:长1500米,宽2米。利用样带法采集数据,结果表明,该地区共有13种不同种群结构的植物。有四种植物具有蓼型的种群结构;芒果、黄花、黄花、千层木。植物以宽度为基础的种群结构有6种,即;谷子,金合欢,金合欢,金合欢,松果,决明子。盆状或壶状植物有两种,即;山茱萸和芒萁。具有反多边形种群结构的植物称为紫花Lagerstroemia speciosa。
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引用次数: 0
Field Adaptation for Watermelon Cultivation under Shallow Ground Water Table in Tidal Lowland Reclamation Area 潮洼垦区浅地下水位西瓜栽培的田间适应性研究
Pub Date : 2020-07-08 DOI: 10.20527/JWEM.V8I1.211
M. Imanudin, Satria Jp, B. ,, M. E. Armanto
Agriculture productivity of tidal lowland reclamation areas in South Sumatra is still low. It leads to the increasing of agricultural land conversion into plantation areas. Controlling the water table is the main factor in the tidal lowlands; this research aimed to develop micro drainage system in tertiary block for controlling water table under wet condition. Watermelon was used as a crop indicator and planted in mid- March 2015. The location of the research was in a tidal lowland agriculture with land typology B, where the tide can only be as irrigation during the rainy season. The method of this research was surveying and monitoring. Groundwater observation, measurement value hydraulic conductivity and land drainage applications were included in the field activities. The design of land drainage used an intensive shallow drainage concept; the effect of the depth of the water table to water status was evaluated by the UPFLOW model. A micro drainage on tertiary block was used by 8 m drain spacing, with channel depth of 20 cm. The results showed that the tertiary gate operation was maximum drainage option. The water table depth was 25 cm in soil depth.The watermelon crops grew well and production reached 20 t ha-1 .
南苏门答腊岛潮汐低地开垦地区的农业生产力仍然很低。这导致了农业用地转为人工林的增加。控制水位是潮低地的主要因素;本研究旨在开发第三系区块湿润条件下控制地下水位的微排水系统。以西瓜为作物指标,于2015年3月中旬种植。研究地点为潮汐低地农业,土地类型为B,在雨季潮汐只能作为灌溉。本研究的方法是调查和监测。野外活动包括地下水观测、测量值、导水率和土地排水应用。土地排水设计采用集约浅水排水理念;利用UPFLOW模型评价了地下水位深度对水态的影响。采用三级块体微排水,排水间距为8 m,沟道深度为20 cm。结果表明,三级闸门是最大的排水方式。地下水位为土壤深度25 cm。西瓜长势良好,产量达20吨/公顷。
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引用次数: 6
期刊
Journal of Wetlands Environmental Management
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