scholarly journals Soil Phase: Base for Deriving Land Capability Class and Crop Suitability

2019 ◽  
pp. 1-13
Author(s):  
N. L. Rajesh ◽  
Kirana Kumara ◽  
V. Rajesh ◽  
H. V. Rudramurthy ◽  
U. Satish Kumar ◽  
...  
Keyword(s):  
Drip Irrigation ◽  
Water Conservation ◽  
Land Surface ◽  
Land Resource ◽  
Class Iii ◽  
Land Capability ◽  
Available N ◽  
Field Crops ◽  
Crop Suitability ◽  
Site Characteristics

A detailed land resource study of Gadagi-2 micro watershed, Lingasusgur taluk, Raichur district, Karnataka state, India, was carried out during summer 2017, at the scale of 1:8000 using cadastral map overlaid on IRS Cartosat-1 merged with LISS IV satellite imagery. Initially, a detailed survey was carried out to derive soil phase units based on land surface and profile characters. Five soil series were identified and mapped into five soil phase units. It is revealed that soil were non-saline with EC <4 dSm-1. The OC, available P2O5 and available K2O content of the study area were low to medium, and soil available N and S status were low in all the five soil phases. HEGiC2 soil phase was classified as class III land capability class with limitation of rooting and slope. Rest of the soil phases viz., KALhC2g1S1R1, VKRhD2g2S2R3, CHRhC2g1S1R1 and BHGhE2g2S2R2 were classified as class IV land capability with limitation of slope, texture, erosion, rooting condition and organic carbon. Suitability for horticulture and field crops were derived based on soil phase, site characteristics and climatic regimes. Proposed crop plan for field crops and horticulture crops for all five soil phase units was prepared. Suitable soil and water conservation measures such as deep and wider size pit and drip irrigation for fruit crops and forest trees, cultivation on raised beds with mulches and drip irrigation, graded bunds and strengthening of field bunds, crescent bunds were found suitable for vegetables, flowers and sole crops based on the soil phase characteristics.

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.

Nitrogen and Phosphorus Absorption and Yield of Tomato Increased by Regulating the Bacterial Community under Greenhouse Conditions via the Alternate Drip Irrigation Method

Agronomy ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 315 ◽  
Author(s):  
Jingwei Wang ◽  
Wenquan Niu ◽  
Yuan Li
Keyword(s):  
Bacterial Community ◽  
Drip Irrigation ◽  
Water Conservation ◽  
Field Capacity ◽  
Underlying Mechanism ◽  
Nitrogen And Phosphorus ◽  
Available N ◽  
Irrigation Method ◽  
Root Interactions ◽  
Tomato Roots

Alternate drip irrigation (ADI) is a useful irrigation method for water conservation and the regulation of soil quality; however, knowledge about the underlying mechanism of soil-root-bacterium interactions is limited. To determine the mechanism by which ADI transforms soil nutrients and thereby promotes plant growth and to provide a basis for the reasonable selection of drip irrigation methodology, the present study investigated the effects of ADI on the composition and potential function of the bacterial community in tomato rhizosphere soils under greenhouse conditions and analyzed the soil-root-bacterium interactions under ADI. The results revealed that, compared with the soils of the plots treated with surface drip irrigation with plastic film mulching (DI-PFM), the soils of the plots treated with ADI presented an optimized bacterial community structure and optimized soil nitrogen (N) and phosphorus (P) metabolism. The soil available N contents under ADI with lower irrigation limits of 50%, 60%, and 70% of field capacity (A50, A60, and A70 treatments, respectively) were 1.48, 2.19, and 1.91 times greater than those under DI-PFM, respectively; similarly, the soil available P contents were 1.49, 1.65, and 2.91 times greater; the total phosphorus (TP) contents in the tomato roots were 1.06, 1.94, and 1.59 times greater, respectively; and the TP contents in the tomato plants were 1.03, 1.75, and 2.84 times greater, respectively. In addition, the total nitrogen (TN) contents in the tomato roots under ADI with lower irrigation limits of 60% and 70% of field capacity were 1.07 and 1.14 times greater than those under DI-PFM, and the TN contents in the tomato stems were 1.21 and 1.12 times greater than those under DI-PFM. However, compared with DI-PFM, ADI improved tomato yields by 24.23% under only 70% of field capacity. Therefore, ADI significantly enhanced soil-root interactions and stimulated the activation of soil N and P, but only a proper low soil moisture content (SMC) led to significantly increased tomato yields.

KLASIFIKASI KEMAMPUAN LAHAN PADA TANAH BERBAHAN INDUK TUFA TONDANO SEPANJANG JALUR JALAN BELANG-RATAHAN

EUGENIA ◽  
2015 ◽  
Vol 21 (1) ◽  
Author(s):  
Yani Kamagi ◽  
Jeanne Lengkong
Keyword(s):  
Sea Level ◽  
Water Conservation ◽  
Soil And Water Conservation ◽  
Class Iii ◽  
Land Capability ◽  
Class Viii ◽  
Soil And Water ◽  
Class Iv ◽  
Land Using

ABSTRACT This study aimed to determine the class of land capability, land using, and conservation technique which could be applied at Tondano tuff derived soils along Belang-Ratahan road. The results showed that, four  classes of  land capability, were: a)  class III at 100 m (Watulinei), 200 m, and 300 m (Wawali) above sea level; b) class IV at 400 m (Lowu II) and 600 m (Pangu) above sea level; c) class VI at 700 m above sea level (Pangu), and  d) class VIII at 500 m and 800 m above sea level (Pangu). Most of the land using were not suitable, yet and there were no soil and water conservation technique applied, yet. Only at 700 m and 800 m above sea level that have been used suitable  as the nature reserved. Keywords: land capability, Tondano tuff

Pastoralists-farmers’ conflicts in Nigeria’s mid-Benue Trough: Socio-ecological drivers and pathways to addressing the conflicts.

2021 ◽  
Author(s):  
Chukwudi Njoku ◽  
Francis Okpiliya ◽  
Joel Efiong ◽  
Chinwe Ifejika Speranza
Keyword(s):  
Climate Change ◽  
Land Use ◽  
Land Surface ◽  
Land Development ◽  
Policy Formulation ◽  
Landsat 8 ◽  
Land Resource ◽  
Hotspot Analysis ◽  
Benue Trough ◽  
Year 2000

&lt;p&gt;Violent conflicts related to pastoralists-farmers&amp;#8217; interactions in Nigeria have assumed an unprecedented dimension, causing loss of lives and livelihoods. The mid-Benue trough (Benue and Taraba States) has suffered most from the conflicts. This study aims to provide knowledge on the socio-ecological drivers of pastoralists-farmers&amp;#8217; conflicts in the mid-Benue trough from the year 2000 to 2020 and to identify pathways to solving them. First, data from the Armed Conflict Location and Event Data Project were used to map the conflicts. Second, to understand the nexus of climate change, land use and the conflicts, the study analyzed satellite data of Land Surface Temperature (LST) as a proxy for climate change, using data from the Moderate-Resolution Imaging Spectroradiometer (MODIS) satellite and Land Use Land Cover (LULC), using LandSat 7 ETM and LandSat 8 ETM+ data, then linked them to the mapped conflicts. Third, to understand causes and impacts of the conflict on pastoralists and farmers&amp;#8217; livelihoods, 100 interviews were conducted, 50 for each group and analyzed using content analysis and descriptive statistics. Results showed that there were 2532 fatalities from 309 conflict events between pastoralists and farmers. The incidents exhibited statistically significant clustering and were minimal between the year 2000 and 2012, increasing gradually until the year 2013 when it began to rise geometrically. The Getis-Ord Gi hotspot analysis revealed the conflict hotspots to include Agatu, Oturkpo, Gwer East and Gashaka Local Government Areas. The results from the LST analysis showed that the area coverage of high LST increased from 30 percent in 2000 to 38 percent in 2020, while extremely high LST area also increased from 14 to 16 percent. A significantly high percentage of the conflicts (87 percent) occurred in areas with high LST (&gt;30&amp;#8304;C). In addition, the LULC analyses showed that built-up land area increased by 35 km&lt;sup&gt;2 &lt;/sup&gt;(0.1 percent) and dense forests reduced by 798 km&lt;sup&gt;2&lt;/sup&gt; (0.1 percent). Notably, shrublands and grasslands, which are the resource domains of the pastoralists reduced by 11,716 km&lt;sup&gt;2&amp;#160; &lt;/sup&gt;(13.1 percent) and croplands of farmers increased by 12,316 km&lt;sup&gt;2 &lt;/sup&gt;(13.8 percent)&lt;strong&gt;. &lt;/strong&gt;This presents an apparent transition of LULC from shrublands and grasslands to croplands in the area. Further analyses showed that 63 percent of the conflicts occurred in croplands and 16 percent in shrublands and grasslands. Hence, the reduction of land resource available to pastoralists and their subsequent cropland encroachment were identified as major causes of the conflict. It was therefore concluded that land development for other purposes is a major driver of pastoralists-farmers&amp;#8217; conflicts in the study area. There is thus a need to integrate conflict maps, LST and LULC dynamics to support dialogue, land use planning and policy formulation for sustainable land management to guide pastoral and farming activities.&lt;/p&gt;

scholarly journals Water Conservation Scenic Spots in China: Developing the Tourism Potential of Hydraulic Projects and Water Resources

2018 ◽  
Vol 10 (12) ◽  
pp. 4509 ◽  
Author(s):  
Wei Li ◽  
Bao-Jie He ◽  
Jinda Qi ◽  
Jianwen Dong
Keyword(s):  
Water Conservation ◽  
Land Surface ◽  
Tourism Industry ◽  
Chinese Government ◽  
Surface Erosion ◽  
Cultural Resources ◽  
Balanced Development ◽  
Scenic Spot ◽  
Holistic Understanding ◽  
Tourism Potential

The reservoir-related tourism industry has been developed for leisure purposes since the 1970s and has gained popularity worldwide. To promote reservoir-related tourism in China, the Chinese government launched a “top-down” project titled “Water Conservation Scenic Spot” (WCSS) in 2001. However, because of the lack of reasonable planning, innovative ideas, and effective governance, there are some problems with WCSS constraining its development. To deal with those problems, it is necessary to have a holistic understanding of the WCSS situation. This study analyses the origin, status, opportunities, and challenges of WCSS development in China. The results show a trend of periodic increase in the number of WCSSs between 2001 and 2016, and WCSS development is unbalanced regarding regions and types. Moreover, the main issues for the WCSS include the failure to follow WCSS guidelines in practice, weak awareness of the scientific educational function, monotonous planning and construction, a lack of cultural preservation, insufficient funding, weak marketing, damaging of natural resources, destruction of clusters of animals and plants, land surface erosion, and landscape pollution. These adverse effects can be alleviated by strengthening supervision and fostering balanced development, promoting education and protecting cultural resources, distributing funding and enlarging popularity, controlling the amount of tourism, and avoiding overexpansion. Overall, the findings of this study can encourage the development of WCSSs in the future and are of significance in supporting the reservoir-related tourism industry.

Increasing Number of Drip Irrigation Lines for Water Conservation during Strawberry Establishment

2016 ◽  
Vol 16 (sup1) ◽  
pp. 108-117
Author(s):  
Oleg Daugovish ◽  
Ben Faber ◽  
Michael Cahn ◽  
Surendra Dara
Keyword(s):  
Drip Irrigation ◽  
Water Conservation

scholarly journals Improving Snow Analyses for Hydrological Forecasting at ECCC Using Satellite-Derived Data

2021 ◽  
Vol 13 (24) ◽  
pp. 5022
Author(s):  
Camille Garnaud ◽  
Vincent Vionnet ◽  
Étienne Gaborit ◽  
Vincent Fortin ◽  
Bernard Bilodeau ◽  
...  
Keyword(s):  
Data Assimilation ◽  
Water Conservation ◽  
Land Surface ◽  
River Flow ◽  
Flow Analysis ◽  
Land Surface Model ◽  
Surface Model ◽  
Streamflow Forecasting ◽  
Snow Cover Extent ◽  
Hydrological Services

As part of the National Hydrological Services Transformation Initiative, Environment and Climate Change Canada (ECCC) designed and implemented the National Surface and River Prediction System (NSRPS) in order to provide surface and river flow analysis and forecast products across Canada. Within NSRPS, the Canadian Land Data Assimilation System (CaLDAS) produces snow analyses that are used to initialise the land surface model, which in turn is used to force the river routing component. Originally, CaLDAS was designed to improve atmospheric forecasts with less focus on hydrological processes. When snow data assimilation occurs, the related increments remove/add water from/to the system, which can sometimes be problematic for streamflow forecasting, in particular during the snowmelt period. In this study, a new snow analysis method introduces multiple innovations that respond to the need for higher quality snow analyses for hydrological purposes, including the use of IMS snow cover extent data instead of in situ snow depth observations. The results show that the new snow assimilation methodology brings an overall improvement to snow analyses and substantially enhances water conservation, which is reflected in the generally improved streamflow simulations. This work represents a first step towards a new snow data assimilation process in CaLDAS, with the final objective of producing a reliable snow analysis to initialise and improve NWP as well as environmental predictions, including flood and drought forecasts.

scholarly journals Characterization and Evaluation of Land Resources for Management of Barela Village in Seoni district, Madhya Pradesh using High Resolution Satellite Data and GIS

Agropedology ◽  
2019 ◽  
Vol 28 (1) ◽  
Author(s):  
Akash Borse ◽  
◽  
M.S.S. Nagaraju ◽  
Benukantha Dash ◽  
Nisha Sahu ◽  
...  
Keyword(s):  
Water Conservation ◽  
Alluvial Plain ◽  
Madhya Pradesh ◽  
Land Uses ◽  
Land Resources ◽  
Soil Series ◽  
Land Capability ◽  
Image Characteristics ◽  
Severe Erosion ◽  
The Village

The present investigation was carried out in Barela village of Seoni district, Madhya Pradesh to characterize, classify and evaluate the land resources using IRS-LISS-IV and GIS. Five major landforms viz. plateau; escarpments, mound, pediment and alluvial plain were identified and delineated. Based on image characteristics, seven land uses/ land cover classes’ viz., single crop, double crop, degraded forest, wasteland, river, waterbody and habitation were identified. Five slope classes viz., very gently sloping (1-3%), gently sloping (3-5%), moderately sloping (5-10%), strongly sloping (10-15%) and steeply sloping ( 15-25%) lands have been identified using Cartosat-1 DEM (30 m resolution) and topographic information. Five soil series (Barela-1, Barela-2, Barela-3, Barela-4 and Barela-5) were tentatively identified and mapped based on landform-soil relationship. Soils, in general, are shallow moderately deep, moderately well to well drained with moderate to severe erosion and clayey in texture. The soils are neutral to slightly alkaline in reaction and non-saline and qualify for Lithic Ustorthents/ Typic Haplustepts/ Typic Haplusterts at subgroup level. The soils were grouped under land capability sub-classes IIs, IIIes, IVst and VIst and land irrigability sub-classes 2s, 3st and 4st. The soils of Barela-4 (subgroup) are moderately suitable for growing gram, soybean, maize and pigeonpea. The soils of Barela-5 (subgroup) are highly suitable for growing pigeonpea and moderately suitable for growing gram, soybean and maize. Soils of Barela-1, Barela-2 and Barela-3 are not suitable for growing gram, soybean, maize and pigeonpea. Various soil and water conservation measures and alternate land use options have been suggested based on land resources information generated for management of land resources in the village.

scholarly journals Evaluasi Kemampuan Lahan Dan Arahan Pemanfaatan Lahan Di Daerah Aliran Sungai Wai Tina Kabupaten Buru Selatan Provinsi Maluku

Agrologia ◽  
2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Jeheskel Manuputty ◽  
Elia Y Gaspersz ◽  
Selwanus M Talakua
Keyword(s):  
Land Use ◽  
Local Community ◽  
Agricultural Land ◽  
Survey Method ◽  
Class Iii ◽  
Land Capability ◽  
Watershed Land Use ◽  
Erosion Rates ◽  
Land Capability Evaluation ◽  
Capability Evaluation

Tina Wai watershed area 48,132 ha, located in the South Buru and serves as a provider of water for the local community. Land Capability Evaluation and Tina Wai Watershed Land Use in South Buru, Maluku Province, has been performed in order to determine the land capability classification level, and determine the direction and pattern of land use in accordance with their respective land capability class. The research method is a survey method with a pattern of synthetic and analytical approach with a flexible range of observation following the change in shape of physiographic and land use. The results found that Tina has 6 Wai watershed land capability class, ie class III, IV, V, VI, VII, and VIII with factor inhibiting dominated by undulating slopes to very steep, erosion rates to very heavy weight, medium texture soil, permeability rather fast to slow, moderate sensitivity to erosion, rock gravel of moderate-to-many, and the threat of flooding rather frequently. Land capability class has the most extensive is the fourth grade with an area of 24.636 ha, or 51.19%. Referrals for agricultural land use is 29,184.75 ha or 61.89; for plantations, livestock and forest production by 8396.75 ha or 17.38%; for the protected forest of 6,941.25 ha or 14.42%; and for the nature reserves of 3036.00 ha or 6.31%.

Sign in / Sign up

Export Citation Format

Share Document