Aplikasi Limbah Padat Karet Remah Pada Tanah Podsolik Merah Kuning Terhadap Ketersediaan Hara Makro Dan Perbaikan Sifat Fisika Tanah

The chemical properties of Podsolic Red-Yellow soil have pH is very acidic to slightly acidic, low to moderate percentage of C-organic, low to moderate P, and low status of K, Ca, Mg, Na, and other saturation of bases. Also, the physical characteristics of the Red-Yellow Podsolic soil show a distinctive characteristic, as bulk density soil index of 1.30 - 1.50 g.cm-3, with low water absorption. The chemical and physical properties are bad enough to make Red-Yellow Podsolic soil have a low ability to provide macronutrients needed by plants. Organic matter is proven to be able to control nutrient availability in mineral soils. The potentials for organic material that has been completely decomposed is crumb rubber solid waste. The use of crumb rubber solid waste material as organic material is expected to be able to influence the availability of macronutrients and improve the physical characteristics of the Podsolic Red-Yellow soil. This study aims to find differences in the availability of NH4+ NO3-, H2PO4-, K-exchangeable, C-organic and to compare the treatments that produce the best index of soil bulk density, increase the percentage of water content, and determine the soil temperature of Red-Yellow Podsolic with the application of crumb rubber solid waste with difference level, statistical test with through the index of mean difference Tukey’s test on level α 5%. In this research it was concluded that the application of crumb rubber solid waste could increase soil pH, provide levels of NH4+, NO3-, H2PO4, K-exchangeable, C-organic and reduce soil bulk density index, increase water content and soil temperature compared to not using crumb rubber solid waste. PCr3 treatment showed the highest yield at pH, NH4+, H2PO4, C-organic and increased water content, but it was not significantly different than PCr2 treatment, whereas PCr2 was significantly different from PCr3 in providing NO3-, K-exchangeable.

Analisis Pengaruh Ledakan Populasi Ikan Sapu-Sapu (Pterygoplichthys Spp) Terhadap Pendapatan Nelayan Jaring Insang Di Perairan Danau Sidenreng

The Sailfin Catfish is one of the invasive fish species. The occurrence of sailfin catfish population explosion in the waters of Lake Sidenreng which disturbs gill net fishermen is one of the main problems that have not been found to solve it. Due to its impact on catch production, catch effectiveness and sustainability of aquatic biodiversity, this research was carried out with the aim of knowing the effect of sailfin catfish population explosion on gill net fishermen's income. This research was conducted for three months, namely from June to August 2020 in Wette'e Village and in the Village of Teteaji Kab. Sidenreng Rappang. The average income of gill-net fishermen before the sailfin catfish population explosion tended to be higher than that of the fishermen after the sailfin catfish population explosion occurred. The highest income of fishermen before the Sailfin catfish population explosion was Rp. 550,000 with the lowest income of Rp. 50,000, while the highest income of fishermen after the sailfin catfish population explosion was Rp. 200,000 with the lowest income of Rp. 15,000. Meanwhile, based on the results of the analysis of the Mann Whitney test, the calculated z value of -1.878 and the Asympe sig (2 tailed) value of 0.060 The significance probability value is lower than ɑ = 0.05. This means that H0 is rejected and H1 is accepted so that it can be concluded that the sailfin catfish population explosion had an effect on fishermen's income before the sailfin catfish population explosion and after the sailfin catfish population explosion occurred.

Analisis Kelimpahan Dan Keanekaragaman Perifiton Rawa Bangkau Kabupaten Hulu Sungai Selatan Kalimantan Selatan

Periphyton group are biota communities that be able adapt and grow well in lentic waters. Their habits are adhere to a permanent location. Aquatic vegetation in Bangkau can influenced the periphyton abundance and diversity as natural food in the food chain. The purpose of this study was to analyzed abundance and diversity of Periphyton from different aquatic vegetation. The research was conducted in three stations by purposive sampling. The method used was quantitative explored. The data that has been taken were epiphythic periphyton samples. Periphyton sampling procedures, preservation, and analysis were carried out based on Indonesian National Standard methods. Bangkau’s peatland had the highest abundance of phytoplankton-periphyton (9982 sel/liter) in inlet, but low at middle station (778 sel/liter). Zooplankton-periphyton (553 sel/liter) in middle station was the highest abundance whereas in outlet station (153 sel/liter) was the lowest. Bacillariophyceae had predominant and always attendanced Oscillatoria, Closterium, Planktonella, Diatom, meanwhile zooplankton-periphyton dominated Ciliophora in all stations and sampling. Diversity index of phytoplankton-periphyton in inlet station (1,55) was the highest and in inlet (0,77) was the lowest. Zooplankton-periphyton in middle (1,76) and outlet (0,94) was different based on Shannon wiener’s Index. The abundance index of Bangkau were mesotrophic categorized for phytoplankton-periphyton and oligotrophic for zooplankton-periphyton. Due to the low level of species diversity (H’≤ 3) showed moderate stability and for the water quality conditions was moderate polluted.

Peran Limbah Bahan Organik Pada Lubang Resapan Biopori Terhadap Sifat Kimia Tanah Di Lahan Pasca Tambang

Biopore infiltration hole are hole made for run-off flow which if allowed to cause erosion and can remove the topsoil, causing soil fertility to be reduced. The use of biopori infiltration holes can be maximized by adding organic matters into the hope that in addition to absorbing water it can increase soil fertility. The liquid waste of tofu and meranti litter is an organic matters are used in this study, by adding organic matters to the biopori hole. This study aims to look at the effect of providing organic matters in the biopore hole derived from tofu and litter liquid waste on the value of pH, C-Organic, and post-mining CEC. This study was an experimental study in the field using a completely randomized design of one factor, namely organic matters with six levels, namely without organic matters and using 25 g, 50 g, 75 g, and 100 gr organic matters given to the biopori hole in incubation for one month later Soil samples taken were analyzed for pH, C-organic, and CEC. The results showed that the treatment only affected the soil's pH value. Organic material provided in the biopori hole is thought to have not completely decomposed, causing the soil around the biopori infiltration hole to remain acidic. The acidity of the soil is due to the gases produced during the decomposition process. Changes in soil pH ranged from 4.36 to 4.65 by administering 75g of organic matters from tofu liquid waste and meranti litter. This research is useful in post-mining land reclamation in increasing soil fertility, with the improvement of soil chemical properties such as pH will slowly improve the physical and biological properties of the soil so that it can be used as cultivation land.

Ambang Batas Erosi Pada Suatu Daerah Aliran Sungai (Studi Kasus di DAS Tulis, Banjarnegara, Jawa Tengah)

Watersheds (DAS), which are river basins flowing in one outlet and limited by hills and mountains, often occur in land degradation or erosion. Erosion that occurs is said to be safe if it does not exceed the tolerable erosion or erosion tolerance limits or often called T-values. With regard to problems on sloping land in a watershed, the purpose of this study is to calculate the value of T-values or erosion tolerance limits. Calculation of T-values using the Hammer method (1981), namely by observing the factors of soil depth and effective depth of roots, and resources life of 300 or 400 years. T-value results are classified into 4 classes, namely (tons/ha/year) : (1) very low (<5), (2) low (5-25), (3) high (25-50), and (4) very high (> 50). The research location in the Tulis watershed is 12,750 ha in DTW (Reservoir Catchment Area) Mrica Banjarnegara. From the calculation of the T-value obtained results: very low 0.03% (3.8 ha), low 2.46% (313.7 ha), high 49.31% (6,287 ha), and very high 48.2% (6,145.5 ha).

Pandemi Covid-19: Refleksi Pentingnya Optimasi Lahan Pekarangan Sebagai Penyokong Kemandirian Pangan Dan Kesehatan Keluarga

The COVID-19 pandemic was outbreak since January 2020 has now spread out to 213 countries, infected 29,227,348 people and 929,263 deaths. In Indonesia, 221,523 people were infected and 8,841 of them died. Neither the vaccine nor the cure has been found, but the researchers recommend that people consume various types of rhizome plants, moringa, guava, and others as prevention. The opportunity for the Indonesian people to increase their sovereignty in facing the COVID-19 pandemic is very overt because it has a geographical advantage as a tropical country traversed by the equator and fertile soil. This study aims to determine the use of backyards and its importance in promote family health amid the COVID-19 outbreak. This research was conducted in Pacitan Regency, East Java, from March 16 to April 17, 2020 through a qualitative approach with a combined method of questionnaires (162 people), in-depth interviews (18 people), and desk study. The findings showed that 95.06% of respondents agreed that the backyard was an environmental asset, 100% agreed that the backyard could be used to fulfill the needs of vegetables and toga. As 78.4% of respondents have planted vegetables and toga in their backyards and 64.2% feel calmer in facing the COVID-19 pandemic in terms of availability of the need for vegetables and traditional herbal ingredients. This is stated as an ease of concocting traditional herbal medicine and fulfilling kitchen needs for 86.42% of respondents and 57.41% assessed that their families do not depend on market uncertainty because the pattern of backyard use is carried out by growing vegetables and toga plants. The backyard as an environmental asset can promote the realization of food sovereignty (non-rice) and family health if it is managed properly, both flat and vertically.

Dampak Kebakaran Lahan Dan Hutan Terhadap Kesehatan Perempuan Di Kabupaten Pulang Pisau

Forest and land fires are a source of air pollution in Pulang Pisau District. This incident has caused various impacts on women's lives, one of which is a decrease in the level of health. The research objective was to determine the impact of forest and land fires on women's health and the role of women in dealing with forest and land fires. This research was conducted in Pulang Pisau District, Central Kalimantan Province. Sources of data used are primary and secondary data collection. Data analysis in this research was conducted descriptively. Based on the results of the study, it shows an increase in the number of ispa cases followed by the intensity level of the number of forest and land fire incidents. One of the beneficiaries of the forest and land fire incidents are women, children and the elderly. The role and involvement of women so far is only to help prepare foodstuffs and participate in extinguishing fires when forest and land fires occur, but there is still a lack of women's involvement in making prevention and socialization efforts related to the impact of forest and land fires.

Persepsi Wisatawan Terhadap Kelestarian Lingkungan Di Kawasan Punclut Bandung

Bandung is one of the best tourist destinations in Indonesia and Southeast Asia. Bandung has its own charm as a tourist spot with a variety of tourist attractions ranging from natural, culinary, heritage and cultural tourism. Tourism supports 40% of Bandung City's Regional Revenue and one of the tourist areas is Punclut. At first Punclut area was a green hills. Since the 1990s, there have been many travelers go to Punclut just to exercise in the morning. Now, there were more and more travelers with varied purposes, like for having meals or just hang out. Slowly, more and more commercial buildings were built in this area. Most of the designation is for restaurants. This conditions of course has an impact on the ecology of the area. Therefore, the authors conducted a study to determine an environmental sustainability in the Punclut area through the perceptions of tourists who have come to Punclut. The research was conducted using a qualitative method by conducting literature studies and distributing digital questionnaires through the Google Docs application. The results showed that environmental sustainability in the Punclut area was perceived by tourists who had visited there as "moderate" with a "good" tendency.

Sebaran Kualitas Air Teluk Pamukan

Teluk Pamukan is the closest fishing ground used by fishermen who live on the coast of Teluk Pamukan. Apart from fisheries, several other activities in the Teluk Pamukan area include industrial shipping or coal transportation traffic using barges, transportation of crude palm oil (CPO), and is an area for loading and unloading fertilizers and oil palm kernels by tankers. This activity has led to allegations of disturbance in the aquatic ecosystem in the form of a decrease in water quality, particularly in fishing areas. The decrease in water quality will certainly affect the status of water quality that is no longer by its designation so that it can cause social problems in the community. The purpose of this research was to identify the general characteristics of Teluk Pamukan, map the distribution patterns of water quality and the scale of water quality in Teluk Pamukan, and to analyze fishermen's perceptions of the decline in water quality. The sampling location was in the waters of Teluk Pamukan. The method used to determine the status of water quality was the Pollutant Index according to the opinion of Sumitomo and Nemerow (1970). The results obtained can be concluded that the environmental quality scale for each parameter varied from very bad to very good. However, the results of the pollutant index calculation at all stations were included in the Moderately Polluted category

Kajian Persepsi Dan Perilaku Masyarakat Terhadap Pencemaran Air Sungai Martapura

Many studies showed that rivers in Indonesia had been polluted. This is due to the large number of human activities, both from industrial, domestic, and agricultural waste. Kampung Sasirangan is one of the settlements located on the bank of Martapura River. The existence of industrial activities from sasirangan waste water and the large number of people deficating and throwing the garbage in the river causes water pollution. Good perceptions and good behavior is expected to increase community participation in river conservation. The purpose of this study was to determine the perceptions and behavior of the community regarding pollution that occurs in the Martapura River and to determine alternative strategies to control water pollution of Martapura River. Data was collected by questionnaires, observation, and interviews. The sample of respondents in this study used Slovin formula, amounted 100 respondents. This research use descriptive qualitative anaylisis. The results of this study show that most respondents have a poor perception of water pollution. Therefore, a strategy is needed that can make positive perceptions so that community behavior cares about environmental sustainability, that is education, wastewater treatmant plan, legislation, monitoring, and encouragement of public figure