Land evaluation studies with remote sensors in the infrared and radar regions

1968 ◽  
Author(s):  
David S. Simonett
Keyword(s):  
Evaluation Studies ◽  
Land Evaluation ◽  
Remote Sensors

Dynamic land capability model: a case history

1990 ◽  
Vol 329 (1255) ◽  
pp. 411-419 ◽  
Keyword(s):  
Soil Moisture ◽  
Crop Yields ◽  
Evaluation Studies ◽  
Soil Improvement ◽  
Crop Productivity ◽  
Farm Management ◽  
Land Evaluation ◽  
Soil Types ◽  
Land Capability ◽  
Management Aspect

A computer simulation approach has been developed that quantifies land capability in terms of crop productivity under different conditions of climate, soil, drainage or irrigation and farm management. This model deals with: (i) the dates and number of days in spring when soil moisture content falls sufficiently to permit soil cultivation and sowing or planting (farm management aspect); (ii) duration of germination and time of emergence in relation to soil moisture and temperature; (iii), water uptake, development, growth and harvest of the crop; (iv) number and time of soil workable days available for the harvest of root crops in autumn (farm management aspect). The model was applied to compute effects of land drainage (15 combinations of drain depth and distance) on the yield of potatoes and spring cereals growing during 30 years (1952-81) on eight different soil types in the Netherlands. The outcome of this study was used as a basis for a nationwide system for evaluating the effects of soil and drainage upon crop yields. The methodology of the integrated model approach can be applied in other climates for a variety of crops growing on different soil types. It can be used to evaluate not only drainage effects on yield, but also those of irrigation and soil improvement. The approach is applicable to land evaluation studies in general.

scholarly journals Land Inventorization at Tardi-Babhlaj Villages of Shirpur Taluka Maharashtra State using RS and GIS

2021 ◽  
pp. 331-343
Author(s):  
C. Sudharshana ◽  
Mallikarjun Dhotre ◽  
Vijay Kumar Didal
Keyword(s):  
Soil Properties ◽  
Evaluation Studies ◽  
Land Evaluation ◽  
Slight Variation ◽  
Organic Carbon Content ◽  
Land Capability ◽  
Rs And Gis ◽  
Physico Chemical ◽  
Close Relationship ◽  
Sustainable Usage

Scientific evaluation of the land is essential in order to understand the suitability for agricultural and non-agricultural purposes and identification of capabilities and constraints of the land for various crops and their cultivation helps in appropriate and sustainable usage. In order to uplift the production, productivity as well as profitability from a farm land, the knowledge regarding various land resources and soil properties become pre-requisites. In this, direction, a land inventorization was carried out using RS and GIS techniques. The prime objective was to carry out land evaluation studies based on land based on land capability classification and suitability of lands for commonly cultivated crops in the region. Soil morphological features, physical, physico-chemical and fertility properties of the land were analysed and the results indicated that the soils are good in inherent properties even with the slight variation in the morphological and physicochemical properties. Land evaluation based on Land Capability Classification (LCC) revealed that, all the blocks fall under Class-IV with some of the limitations like, erosion, texture and low organic carbon content in soils. Suitability of land to the crops indicated that there are limitations with respect to erosion, slope and soil fertility. Based on the obtained results, corrective measures were suggested for all the blocks to reduce the erosion losses improve the soil properties for higher productivity of the cultivated crops. The study concludes that variation in soils in all blocks is due to the close relationship between soils, physiography and climate which are interrelated.

Unknown and Under-Researched: The Anatomy of Drinking Under Control Programs

2017 ◽  
Vol 63 (5) ◽  
pp. 277-288
Author(s):  
Harald Klingemann ◽  
Justyna Klingemann
Keyword(s):  
Quality Of Life ◽  
Harm Reduction ◽  
Evaluation Studies ◽  
Mission Statements ◽  
Community Response ◽  
Limited Resources ◽  
Admission Criteria ◽  
Control Programs ◽  
Institutional Order

Abstract. Introduction: While alcohol treatment predominantly focuses on abstinence, drug treatment objectives include a variety of outcomes related to consumption and quality of life. Consequently harm reduction programs tackling psychoactive substances are well documented and accepted by practitioners, whereas harm reduction programs tackling alcohol are under-researched and met with resistance. Method: The paper is mainly based on key-person interviews with eight program providers conducted in Switzerland in 2009 and up-dated in 2015, and the analysis of reports and mission statements to establish an inventory and description of drinking under control programs (DUCPs). A recent twin program in Amsterdam and Essen was included to exemplify conditions impeding their implementation. Firstly, a typology based on the type of alcohol management, the provided support and admission criteria is developed, complemented by a detailed description of their functioning in practice. Secondly, the case studies are analyzed in terms of factors promoting and impeding the implementation of DUCPs and efforts of legitimize them and assess their success. Results: Residential and non-residential DUCPs show high diversity and pursue individualized approaches as the detailed case descriptions exemplify. Different modalities of proactively providing and including alcohol consumption are conceptualized in a wider framework of program objectives, including among others, quality of life and harm reduction. Typically DUCPs represent an effort to achieve public or institutional order. Their implementation and success are contingent upon their location, media response, type of alcohol management and the response of other substance-oriented stake holders in the treatment system. The legitimization of DUCPs is hampered by the lack of evaluation studies. DUCPs rely mostly – also because of limited resources – on rudimentary self-evaluations and attribute little importance to data collection exercises. Conclusions: Challenges for participants are underestimated and standard evaluation methodologies tend to be incompatible with the rationale and operational objectives of DUCPs. Program-sensitive multimethod approaches enabled by sufficient financing for monitoring and accompanying research is needed to improve the practice-oriented implementation of DUCPs. Barriers for these programs include assumptions that ‘alcohol-assisted’ help abandons hope for recovery and community response to DUCPs as locally unwanted institutions (‘not in my backyard’) fuelled by stigmatization.

Theoretical and Methodological Problems of a 10-Year Follow-Up Program Evaluation Study

2002 ◽  
Vol 18 (3) ◽  
pp. 229-241 ◽  
Author(s):  
Kurt A. Heller ◽  
Ralph Reimann
Keyword(s):  
Program Evaluation ◽  
Evaluation Studies ◽  
Evaluation Study ◽  
Control Groups ◽  
Cross Sectional ◽  
Long Term Study ◽  
Partial Inclusion ◽  
Methodological Problems

Summary In this paper, conceptual and methodological problems of school program evaluation are discussed. The data were collected in conjunction with a 10 year cross-sectional/longitudinal investigation with partial inclusion of control groups. The experiences and conclusions resulting from this long-term study are revealing not only from the vantage point of the scientific evaluation of new scholastic models, but are also valuable for program evaluation studies in general, particularly in the field of gifted education.

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