scholarly journals Gap analysis of land availability and land needs to identify potential development of agricultural lands in Santan watersheds, East Kalimantan, Indonesia

2019 ◽  
Vol 20 (4) ◽  
pp. 1097-1105
Author(s):  
AKHMAD SOPIAN ◽  
SIGIT HARDWINARTO ◽  
MARLON IVANHOE AIPASSA
Keyword(s):  
Gap Analysis ◽  
Limiting Factors ◽  
Limiting Factor ◽  
Total Production ◽  
Agricultural Lands ◽  
Dryland Agriculture ◽  
Land Capability ◽  
East Kalimantan ◽  
Potential Development ◽  
Land Availability

Abstract. Sopian A, Hardwinarto S, Aipassa MI, Sumaryono. 2019. Gap analysis of land availability and land needs to identify potential development of agricultural lands in Santan watersheds, East Kalimantan, Indonesia. Biodiversitas 20: 1097-1105. Pressures caused by high population growth in various places increase the needs for lands. The aims of this research are to determine the availability and needs of agricultural lands in Santan 1 and Santan 2 watersheds, East Kalimantan, Indonesia as well as to classify land capability which are key aspects in managing land resources. Land availability was determined based on the local actual total production of all commodities, such as agriculture, plantation, and livestock at the sub-district level. Land needs were determined based on the land area required for decent life needs per resident. While land capability was determined using weighting analysis of the limiting factors. Results of this study show that land availability on Santan 1 and Santan 2 watersheds is inadequate to fulfill the needs of inhabitants for agricultural lands. There are 19,053 hectares of lands currently available for agriculture, while there are 56,969 hectares of lands required for agriculture, implying a deficit of 37,916 ha of land. Analysis on land capability shows that lands with eutropepts and tropudults soil with total extent of 16,650,9 hectares are potential to be developed for dryland agriculture, such as seasonal crops, while tropohemist soil is suitable for farmland development, such as lowland rice. The spatial plans in Santan 1 and Santan 2 watersheds do not have adequate lands with agricultural capability since the cultivation areas are situated in VI and VII class with limiting factor of slope and erosion. We find there is undeveloped land in the form of bushes with an extent of 12,989,3 hectares in Santan 1 watershed and 7,055.54 hectares in Santan 2 watershed as potential lands to be developed for dryland agriculture. The results of this study suggest that when establishing neighborhood and hamlet should refer to soil characteristics with certain land capability and cultivation activities not to be done on lands with slopes of >15%.

scholarly journals Fertilization the Omission One Test as Determination Limiting Factors for Maize Biomass (Zea mays L.)

2021 ◽  
Vol 4 (2) ◽  
pp. 94-105
Author(s):  
Koko Tampubolon ◽  
Bagus Fitra Azmi ◽  
Perdana Andriano Tamba ◽  
Ayu Widya Lestari ◽  
Kamaruddin Kamaruddin ◽  
...  
Keyword(s):  
Plant Height ◽  
Leaf Growth ◽  
Block Design ◽  
Relative Yield ◽  
Animal Husbandry ◽  
Dry Weight ◽  
Limiting Factors ◽  
Limiting Factor ◽  
Test Technique ◽  
The Impact

Introduction: The research was aimed to obtain information on the impact of omission one test fertilization as a determination limiting factors for the growth and biomass of maize in variety Bonanza F1. Materials and Methods: The research was located in the experimental field, Faculty of Agriculture and Animal Husbandry, Universitas Tjut Nyak Dhien, Medan from December 2020 until February 2021. The research was applied by Randomized Block Design in non-factorial through fertilization of omission one test that has been converted (urea : SP-36 : KCl = 0.75 : 0.50 : 0.125 g polybag-1). The treatment of this research include P0 = non-fertilization; P1= N+P+K; P2= P+K; P3= N+K; P4= N+P using three replications. The parameters include plant height, leaf growth, total fresh weight, total dry weight, and the percentage of relative yield then processed using ANOVA and continued with DMRT at 5% ± standard error with SPSS v.20 software. Results: Informed that the omission one test technique significantly improved all the characteristics of maize in the variety Bonanza F1. The highest increase in plant height was found in the N+P of 83.65%, meanwhile, the highest leaf and biomass growth characters were found in N+P+K, ranged of 50.00 to 177.81% and 487.60 to 507.37%, respectively. It was obtained that the limiting factor for the maize growth in variety Bonanza F1 was found in the un-fertilization of nitrogen.

scholarly journals APLIKASI SIG UNTUK PENETAPAN KESESUAIAN WILAYAH PENERAPAN MEKANISASI PERTANIAN TANAMAN PANGAN

2016 ◽  
Vol 10 (1) ◽  
pp. 31
Author(s):  
Mubekti Mubekti
Keyword(s):  
Remote Sensing ◽  
Limiting Factors ◽  
Limiting Factor ◽  
Physical Parameters ◽  
Know How ◽  
Agricultural Mechanization ◽  
Preliminary Research

The study is the preliminary research aiming to apply the usefulness of the GISsystem for classifying suitability of region to the agricultural mechanization. Simplebasic theory of GIS and classification of agricultural mechanization were presented.Nine physical and non-physical parameters as limiting factors were defined and aweight of each parameter was calculated in order to know how far its effect to theagricultural mechanization practice. Data coming from several types, ie: numeric,vector and remote sensing (raster) were prepared to support the process. Twoordoes consisting of five classes were employed to extract suitability classificationof each District in Jawa Barat dan Banten Province. The results show that tendistricts are classified into suitable for applying agricultural mechanization, and therest ten districts are classified into not suitable. Depending on the dynamic characterof limiting factor, suitability class would possibly change along the time. Saveralconclusions and advices for improving research are given.

Pengembangan Aerospace Park di Indonesia berdasarkan Potensi Pergerakan Pesawat Udara

WARTA ARDHIA ◽  
2014 ◽  
Vol 40 (1) ◽  
pp. 45-58
Author(s):  
Jaka Yanuwidiasta
Keyword(s):  
Human Resources ◽  
Rapid Growth ◽  
Spare Parts ◽  
Aircraft Maintenance ◽  
Potential Development ◽  
Land Availability ◽  
Business Entities

One of the supporting industries that has high development in line With the rapid growth of aviation services in Indonesia the business Of aircraft including the procurement and production of spare parts and overhaul including the procurement and production of spare parts and the provision of supporting human resources. In 2012, there were 30 business entities engaged in the business of and aircraft is incorporated in IAMSA (Indonesian Aircraft Maintenance Shop Association). The purpose of this research was to obtain an overview of potential development of the Aerospace Park in Indonesia and find alternative airport that could be developed as an Aerospace Park in Indonesia. Based on the potential movement of aircraft and land availability, it is proposed to develop Aerospace Park in Soekarno Hatta Jakarta, Hussein Sastranegara Bandung, Kertajati Majalengka, Juanda Surabaya, Sultan Hasanuddin Makassar, Sam Ratulangi Manado, Sentani Jayapura, Segun Sorong, Hang Nadim Batam, Raja Fisabilillah Tanjung Pinang. Smarinda Baru, Tjilik Riwut Palangkaraya dan BIL Lombok. Salah satu industri pendukung yang sangat berkembang sejalan dengan pesatnya pertumbuhan jasa penerbangan di Indonesia adalah bisnis pemeliharaan dan perawatan pesawat udara termasuk pengadaan dan produksi suku cadangnya serta penyediaan SDM pendukungnya. Pada tahun 2012, tercatat 30 badan usaha yang bergerak dalam bisnis perneliharaan dan perawatan pesawat udara yang tergabung dalam IAMSA (Indonesian Aircraft Maintenance Shop Association). Tujuan penelitian ini adalah untuk mendapatkan gambaran pengembangan Aerospace Park di Indonesia dan mengetahui alternatif bandar udara yang bisa dikembangkan sebagai Aerospace Park di Indonesia. Berdasarkan potensi pergerakan pesawat udara dan faktor ketersediaan lahan diusulkan pengembangan Aerospace Park di Bandar Udara Soekarno Hatta Jakarta, Hussein Sastranegara Bandung, Kertajati Majalengka, Juanda Surabaya, Sultan Hasanuddin Makassar, Sam Ratulangi Manado, Sentani Jayapura, Segun Sorong, Kualanamu Medan, Hang Nadim Batam, Raja Fisabilillah Tanjung Pinang_ Samarinda Baru, Tjilik Riwut Palangkaraya dan BIL Lombok. 

scholarly journals Prediksi Erosi dan Arahan Penggunaan Lahan Daerah Aliran Sungai Yeh Leh Provinsi Bali

2018 ◽  
Vol 12 (1) ◽  
pp. 77
Author(s):  
Ni Made Ayu Ratna Sari ◽  
I Wayan Sandi Adnyana ◽  
I Nyoman Merit
Keyword(s):  
Land Use ◽  
Water Conservation ◽  
Limiting Factors ◽  
Class Iii ◽  
Scoring Method ◽  
Land Capability ◽  
Watershed Area ◽  
Erosion Level ◽  
Soil And Water

Erosion in the watershed generally occurs due to land use that ignores the rules of soil and water conservation. There is much activity carried out by people living on land in the Yeh Leh watershed area, which makes the level of dependence is very enormous.The erosion forecast is using the USLE (Universal Soil Loss Equation) to estimate the erosion swift occurs and to obtain illustration in determining the precise soil and water measures in a region. The determination of land capability classification is using Arsyad’s method (1989) in which to classify the land ability by classifying the land ability class based on the value of land limiting factors, which then adjusted to the criteria of classification of land capability. The land use directional determination is applying the scoring method where combining field slope factor, soil sensitivity to erosion and daily rainfall intensity. The erosion level of the YehLeh watershed area is categorized as mild to very severe. A very light erosion level as large as 515 ha (21.01%), with the land use in the form of irrigated rice field and forest. The severe erosion level as large as 990.02 ha (40.40%) with land use in the form of plantations. The very heavy erosion level as large as 945.82 ha (38.59%) with land use in the form of plantations. The classification of land capability in the YehLeh watershed area consists of 5 classes of land abilities: class II of 115, 22 ha (4.70%), class III of 533.95 ha (21.79%), class IV of 423.61 (17.28%), Class VI of 1,102.03 ha (44.97%), and Class VII of 276.03 ha (11.26%), with some limiting factors for instance, soil texture, erosion and drainage. Proposed land use in the YehLeh watershed area use for forest areas is as protected forest of 456.49 ha (18.63%). Proposed land use outside of the forest area consist of 58.51 ha (2.39%) of seasonal crops, annual cultivation area of 990.02 ha (40.40%) and buffer area of 945.82 (38.59%). Keywords: watershed, erosion, land capability classification, proposed land use.

scholarly journals Potential Distribution of Six North American Higher-Attine Fungus-Farming Ant (Hymenoptera: Formicidae) Species

2019 ◽  
Vol 19 (6) ◽  
Author(s):  
Sarah F Senula ◽  
Joseph T Scavetta ◽  
Joshua A Banta ◽  
Ulrich G Mueller ◽  
Jon N Seal ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Species Distribution ◽  
Evolutionary History ◽  
Niche Overlap ◽  
The United States ◽  
Flood Frequency ◽  
Limiting Factors ◽  
Limiting Factor ◽  
Soil Variables ◽  
Precipitation Seasonality

Abstract Ants are among the most successful insects in Earth’s evolutionary history. However, there is a lack of knowledge regarding range-limiting factors that may influence their distribution. The goal of this study was to describe the environmental factors (climate and soil types) that likely impact the ranges of five out of the eight most abundant Trachymyrmex species and the most abundant Mycetomoellerius species in the United States. Important environmental factors may allow us to better understand each species’ evolutionary history. We generated habitat suitability maps using MaxEnt for each species and identified associated most important environmental variables. We quantified niche overlap between species and evaluated possible congruence in species distribution. In all but one model, climate variables were more important than soil variables. The distribution of M. turrifex (Wheeler, W.M., 1903) was predicted by temperature, specifically annual mean temperature (BIO1), T. arizonensis (Wheeler, W.M., 1907), T. carinatus, and T. smithi Buren, 1944 were predicted by precipitation seasonality (BIO15), T. septentrionalis (McCook, 1881) were predicted by precipitation of coldest quarter (BIO19), and T. desertorum (Wheeler, W.M., 1911) was predicted by annual flood frequency. Out of 15 possible pair-wise comparisons between each species’ distributions, only one was statistically indistinguishable (T. desertorum vs T. septentrionalis). All other species distribution comparisons show significant differences between species. These models support the hypothesis that climate is a limiting factor in each species distribution and that these species have adapted to temperatures and water availability differently.

scholarly journals Impact of the COVID-19 Epidemic on Stroke Care and Potential Solutions

Stroke ◽  
2020 ◽  
Vol 51 (7) ◽  
pp. 1996-2001 ◽  
Author(s):  
Jing Zhao ◽  
Hang Li ◽  
David Kung ◽  
Marc Fisher ◽  
Ying Shen ◽  
...  
Keyword(s):  
Big Data ◽  
Hospital Admissions ◽  
Stroke Care ◽  
Limiting Factors ◽  
Limiting Factor ◽  
Significant Drop ◽  
The Public ◽  
Key Factor ◽  
Prehospital Delays ◽  
The Impact

Background and Purpose: When the coronavirus disease 2019 (COVID-19) outbreak became paramount, medical care for other devastating diseases was negatively impacted. In this study, we investigated the impact of the COVID-19 outbreak on stroke care across China. Methods: Data from the Big Data Observatory Platform for Stroke of China consisting of 280 hospitals across China demonstrated a significant drop in the number of cases of thrombolysis and thrombectomy. We designed a survey to investigate the major changes during the COVID-19 outbreak and potential causes of these changes. The survey was distributed to the leaders of stroke centers in these 280 hospitals. Results: From the data of Big Data Observatory Platform for Stroke of China, the total number of thrombolysis and thrombectomy cases dropped 26.7% ( P <0.0001) and 25.3% ( P <0.0001), respectively, in February 2020 as compared with February 2019. We retrieved 227 valid complete datasets from the 280 stroke centers. Nearly 50% of these hospitals were designated hospitals for COVID-19. The capacity for stroke care was reduced in the majority of the hospitals. Most of the stroke centers stopped or reduced their efforts in stroke education for the public. Hospital admissions related to stroke dropped ≈40%; thrombolysis and thrombectomy cases dropped ≈25%, which is similar to the results from the Big Data Observatory Platform for Stroke of China as compared with the same period in 2019. Many factors contributed to the reduced admissions and prehospital delays; lack of stroke knowledge and proper transportation were significant limiting factors. Patients not coming to the hospital for fear of virus infection was also a likely key factor. Conclusions: The COVID-19 outbreak impacted stroke care significantly in China, including prehospital and in-hospital care, resulting in a significant drop in admissions, thrombolysis, and thrombectomy. Although many factors contributed, patients not coming to the hospital was probably the major limiting factor. Recommendations based on the data are provided.

scholarly journals The TATA-binding protein is not an essential target of the transcriptional activators Gal4p and Gcn4p in Saccharomyces cerevisiae

2003 ◽  
Vol 370 (1) ◽  
pp. 141-147 ◽  
Author(s):  
Christine BONGARDS ◽  
Boon Shang CHEW ◽  
Norbert LEHMING
Keyword(s):  
Transcriptional Activation ◽  
Binding Protein ◽  
Tata Binding Protein ◽  
Limiting Factors ◽  
Clear Correlation ◽  
Limiting Factor ◽  
Local Concentration ◽  
Transcriptional Activators ◽  
Transcription Process

According to the recruitment model, transcriptional activators work by increasing the local concentration of one or several limiting factors for the transcription process at the target promoter. The TATA-binding protein Tbp1 has been considered as a likely candidate for such a limiting factor. We have used a series of Gal4p and Tbp1 mutants to correlate the in vivo interaction between the two proteins with the strength of activation. We find a clear correlation between activation strength and in vivo interaction for the series of Gal4p mutants. Consistently, the weaker activator Gcn4p does not interact with Tbp1. However, a corresponding analysis of the series of Tbp1 mutants revealed that Tbp1 is not an essential target of the acidic activators Gal4p and Gcn4p. Furthermore, detailed analysis of a Tbp1 mutant deficient for transcriptional activation by Gal4p revealed that the mutant is defective in interactions with five other proteins involved in the process of transcription.

KARAKTERISTIK DAN PRODUKTIVITAS LAHAN SAWAH IRIGASI DI KECAMATAN DUAMPANUA KABUPATEN PINRANG

2019 ◽  
Vol 8 (1) ◽  
pp. 34
Author(s):  
Rachmad Wunangkolu ◽  
Rismaneswati Rismaneswati ◽  
Christianto Lopulisa
Keyword(s):  
Nutrient Retention ◽  
Exchange Capacity ◽  
Land Suitability ◽  
Base Saturation ◽  
Limiting Factors ◽  
Limiting Factor ◽  
Silty Clay ◽  
Field Surveys ◽  
Observation Units ◽  
Average Rainfall

Land potential can be assessed from biophysical land suitability including soil characteristics, climate, and land management. This study aims to determine the potential of paddy fields in Duampanua Sub-District, Pinrang District for irrigated paddy field based on the land biophysical characteristics. The method was qualitative and quantitative approaches. Field surveys use purposive sampling method with 3 object observation. The land suitability class evaluation uses a simple limiting factor approach according to FAO (1976). To support the analysis of rice production data, 30 farmers were interviewed in 3 (three) observation units. The results showed the average rainfall of 2,780.2 mm/year with 9 wet months and 3 dry months categorized as type B2 (Oldeman). The results of soil samples analysis showed the characteristics of the soil with a silty clay texture, silty clay loam and clay; bulk density ranges from 1.36-1.66 g/cm3; cation exchange capacity ranges from 49.64 - 79.75 cmol/kg clay; soil pH ranges from 5.26-5.97; base saturation ranges from 36% - 46.4%; and C-organic ranges from 1.34% - 1.38%. The most dominant types of minerals are orthoclase, biotite, pyroxene, augite, opaque and clay with the symptoms of micropedological concretions and nodules. The land suitability class in the three land units for irrigated paddy rice is classified as S2nr (quite suitability in accordance with the limiting factors for nutrient retention including: base saturation, pH, and C-organic). The average productivity in land units I is 5.1 ton/ha, land unit II is 4.5 ton/ha, and in land units III 5.26 ton/ha.

What are the limiting factors related to discontinuance of chemotherapy after failure of first-line S-1 plus CDDP in Japanese patients with advanced gastric cancer?

2012 ◽  
Vol 30 (4_suppl) ◽  
pp. 149-149
Author(s):  
Yoshihito Ohhara ◽  
Keisho Chin ◽  
Mariko Ogura ◽  
Mitsukuni Suenaga ◽  
Eiji Shinozaki ◽  
...  
Keyword(s):  
Multivariate Analyses ◽  
Japanese Patients ◽  
Limiting Factors ◽  
Limiting Factor ◽  
Second Line ◽  
First Line ◽  
Second Line Chemotherapy ◽  
Group A ◽  
To Receive ◽  
Line Chemotherapy

149 Background: Recently, it is suggested that second-line chemotherapy improved survival in advanced gastric cancer (AGC) and it is commonly performed in Japanese daily practice in these several years. We investigated the limiting factor not to be able to receive second-line chemotherapy in Japanese patients with AGC. Methods: Between 2007 and 2009, 155 patients received S-1 plus cisplatin (SP) treatment as first-line chemotherapy in Cancer Institute Hospital of JFCR, Japan. Among them, 148 patients could not continue SP treatment because of disease progression or unacceptable toxicity. 109 patients could receive second-line chemotherapy (Group A), while 39 patients could not (Group B). We evaluated the clinicopathologic factors that affected not to receive second-line chemotherapy, retrospectively. Univariate and multivariate analyses were performed on the baseline factors before starting first-line chemotherapy. Results: Characteristics of patients were below (Group A vs B): median age, 60 vs 66 (years); gender (male), 71.6 % vs 66.7 %. Median progression-free survival were not different in both Group statistically (6.5 vs 7.2 months; log-rank, p=0.861). Median overall survival were 16.5 vs 10.3 months (log-rank, p<0.001), respectively. Univariate analyses found 4 limiting factors not to initiate second-line chemotherapy: age over 65 years old (p=0.025), performance status>1 (p=0.017), alkaline phosphatase (ALP) >400 IU/l (p<0.001), C-reactive protein (CRP) >1.0 mg/dl (p=0.004). Multivariate analyses showed ALP elevation was a limiting factor (HR 4.122, p=0.003). Conclusions: Alkaline phosphatase can be an uncomplicated and potent limiting factor of discontinuance of chemotherapy after failure of the first line S-1 plus CDDP in Japanese patients with AGC.

The cell as an extreme environment

1979 ◽  
Vol 204 (1155) ◽  
pp. 199-210 ◽  
Keyword(s):  
Host Cell ◽  
Extreme Environments ◽  
Extreme Environment ◽  
Host Cells ◽  
Limiting Factors ◽  
Limiting Factor ◽  
Free Access ◽  
Fitness Traits ◽  
Intracellular Parasites ◽  
The Face

Living cells and their intracellular parasites show many of the characteristics ascribed to extreme environments and their dominant species. The diversity of species colonizing intracellular habitats is low, and successful inhabitants exhibit special fitness traits that often render them obligately dependent on residence within a host cell. However, the diversity-limiting factor in the extreme environment of the host cell interior is not abiotic, as it is in conventional extreme environments. It is biotic: the living cell itself and its many activities. Host cells bar the entrance to most would-be parasites, they destroy most of those that do manage to get inside, and they deny parasites free access to many components of their soluble metabolite pools. Successful intracellular parasites have evolved fitness traits that give them the capacity to survive in the face of diversity-limiting factors or to modify the intracellular habitat so that those factors no longer operate. Looking on the cell as an extreme habitat emphasizes its simultaneous roles as environment, antagonist, and competitor.

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