https://j.ideasspread.org/index.php/ls/issue/feed Land Science 2020-07-15T02:03:04+08:00 Lucas Williams ls@ideasspread.org Open Journal Systems <p>Land Science&nbsp; (ISSN 2690-5418 e-ISSN 2690-4802)&nbsp;is an international and crossdisciplinary open access journal of land use/land change, land management, land system science and landscape, etc, published by&nbsp;IDEAS SPREAD in United States. Our aim is to encourage scientists to publish their experimental and theoretical research in as much detail as possible. Full experimental and/or methodical details must be provided for research articles.</p> https://j.ideasspread.org/index.php/ls/article/view/496 Influence of some Organic Manure and NPK 15:15:15 on Selected Physical Properties of Sandy Loam Soil in Mokwa Niger State Nigeria 2020-07-15T02:03:04+08:00 Mohammed JIYA MAMMAN ikwan1565@gmail.com <p class="text"><span lang="EN-US">The result of long time farming and poor soil management and conservation practices at Niger state college of Agriculture Mokwa Commercial farm which is the study area has led to serious soil degradation like nutrient depletion and soil erosion. There is the need for local content research and innovation to ameliorate the problem. This research work described the effect of organic manure and inorganic fertilizer (poultry manure, Cow dung and NPK fertilizer) on some soil physical properties i.e. the infiltration, porosity, bulk density and erodibility on a sandy loam soil of Mokwa North Central Nigeria. Four treatments of poultry, cow dung manure, NPK 15:15:15 fertilizer and non – application were applied in RCBD with 25t/ha of poultry manure and cow dung while NPK 15:15:15 was 150kg/ha and non- application as control replicated three times. Soil physical properties were measured and analyses were done to ascertain the soil aggregates. Ring infiltrometers were constructed and used to test the infiltration rate of the soil at each plot before soil treatments. Measurements were taken at time intervals for all the plots. The plots were then treated with manure and NPK and left for two weeks to decompose, after which infiltration measurements were taken again. Minitab 17 and Excel were used for the analysis. The cow Dung manure shows highest infiltration rate as compared to other treatments. The experiment shows that Cow Dung and poultry manure can be used to correct infiltration and soil physical anomalies especially when soil is compacted or clayey. </span></p> 2020-03-11T19:11:34+08:00 ##submission.copyrightStatement## https://j.ideasspread.org/index.php/ls/article/view/564 The Influence of Colour and Thickness of Nylon Mulch on Soil Temperature, Moisture, Percent Germination and Some Growth Parameters of Cucumber (cucumis sativus L.) Seedlings 2020-07-15T02:03:04+08:00 Kayode Moses Babatunde mbabatundekayode@gmail.com Kabiru Alani Shittu mbabatundekayode@gmail.com Olusogo Adeyemi Adekanmbi mbabatundekayode@gmail.com Mukaila Adetunji Asimi mbabatundekayode@gmail.com <p>Heat, moisture and oxygen are important factors that has controlled seed germination, thus A 2 ×4 factorial greenhouse experiment was conducted to determine the influence of colour and thickness of nylon mulch on soil temperature, moisture, percent germination and selected growth indicators of cucumber (<em>Cucumis sativus L.)</em> seedlings in a completely randomized design (CRD), where the treatments; nylon colour (white and black) and thicknesses (0, 1.5, 3.0, and 4.5 mm) were replicated three times. The analysis of variance showed that the white nylon thickness had positive significant (<em>P </em>≤ 0.05) influence on soil temperature, soil moisture, plant height and number of leaves, while black nylon thickness had positive significant (<em>P </em>≤ 0.05) influence on soil moisture and plant height and a negative significant (<em>P</em> ≤ 0.01) influence on percent germination, it was also discovered that 1.5 mm thickness of the white nylon contributed significantly (p ≤ 0.05) to the parameters measured, therefore, white nylon of 1.5 mm thickness could be recommended as mulch material for cucumber production in a sandy clay soil.</p> 2020-05-15T00:00:00+08:00 ##submission.copyrightStatement## https://j.ideasspread.org/index.php/ls/article/view/585 Application of Reservoir Performance Indices on Kainji Reservoir System 2020-07-15T02:03:03+08:00 Mohammed Jiya Mamman ikwan1565@gmail.com Otache Y Matins ikwan1565@gmail.com <p>Resilience&nbsp;may be defined as a&nbsp;yardstick that specifies the extent a reservoir recuperates when it fails previously.&nbsp;A reliable water resource system speedily returns to an acceptable state after a failure. Vulnerability measures severity or extent of failures or letdowns, if and&nbsp;once they&nbsp;occur. Sustainability index (SI) provides&nbsp;a sign of fundamental nature with respects to probable unwanted repercussions if imbalance&nbsp;of waters occurs. Sustainability index (SI) can also be expressed as a&nbsp;mean&nbsp;of reliability, resilience and vulnerability. This study employs commonly used indices (reliability, resilience, and Vulnerability) to assess the performance of Kainji reservoir system.&nbsp;To attain&nbsp;this, rain fall and river flow data were obtained from Kainji Hydrological&nbsp;station&nbsp;in New Bussa Nigeria.&nbsp;Analysis&nbsp;using MAKESENS software was&nbsp;used&nbsp;on the rainfall and river flows&nbsp;to look at&nbsp;the extreme&nbsp;events.&nbsp;In order to determine&nbsp;the performance of the reservoir system some reservoir performance indices were employed, these are; vulnerability, resilience, and sustainability index.&nbsp;This is achieved by adopting relevant existing equations. Reservoir flows and storages ware employed, different draft ratios were considered (0.3- 1.0). Varying demand levels were also chosen (0 – 0.8) as against the coefficient of variation&nbsp;to look at&nbsp;the monotonic behaviour of resilience against&nbsp;the various&nbsp;levels of demand. Volume reliability falls repeatedly as draft/ MAR upsurges&nbsp;and bigger&nbsp;values were attained as S/MAR rises. The analysis on the reservoir shows that as demand decreases the sustainability increases&nbsp;and also the&nbsp;higher the storage ratio&nbsp;the higher&nbsp;the sustainability index. It also shows that as draft ratio increases the resilience decreases, and&nbsp;because the&nbsp;draft ratio decreases the resilience increases. The reservoir system was classified as within year system,&nbsp;which suggests&nbsp;high resilience, less vulnerable and sustainable. The operation rule shows the need for optimization.</p> 2020-05-27T00:00:00+08:00 ##submission.copyrightStatement## https://j.ideasspread.org/index.php/ls/article/view/506 A Review of Geospatial Information of Carbon Stocks for Forestry Management, Environmental Protection and Spatial Planning: A Case Study of Southeast Sulawesi, Indonesia 2020-07-15T02:03:03+08:00 Laode Muhammad Golok Jaya Laodemgj@uho.ac.id <p>Climate change and the global warming have become an important issue at the present. Some of previous research showed the importance of studies on the sources of global warming and carbon emissions. Our attention needs to be paid to carbon monitoring worldwide. Therefore, the information about the distribution and the characteristic of carbon stocks has become very strategic matter particularly for sustainable development. This paper aims to analyze the utilization of Geospatial Information of Carbon Stocks (GICS) for forestry management, environmental protection, and spatial planning with the case study in Southeast Sulawesi, Indonesia. The method was descriptive analytic to compose several regulations related to geospatial data and information and their connetion to forestry management in Indonesia, environmental protection, and spatial planning. The results of the analysis showed that the principle of sustainable development must be supported by accurate data and information in accordance with the objectives of sustainable development. For the sustainable development, the GICS is functioning in the Strategic Environmental Assessment (SEA) and Low-Emission Development Strategy (LEDS).</p> 2020-06-30T00:00:00+08:00 ##submission.copyrightStatement##