نتایج جستجو برای: soil conservation service scs
تعداد نتایج: 604939 فیلتر نتایج به سال:
Although advocates of agroforestry have promoted soil conservation as one of its primary benefits, empirical estimates of these benefits have been lacking due to temporal and spatial complexity of agroforestry systems and soil resource dynamics. This study aims to reduce this gap by designing and testing a three stage farm level productivity methodology for economic evaluation of soil conservat...
Soil quality (SQ) assessment is a proactive process for evaluating soil and crop management effects on biological, chemical, and physical indicators of soil health. Our objectives were to evaluate several SQ indicators within five Agricultural Research Service (ARS) experimental watersheds (WS) and determine if those indicators were affected by manure, tillage, or crop rotation histories. Ten s...
abstract conservation tillage practices integrated with appropriate residue management is an efficient approach in sustainable agriculture to prevent the removal or burning of crop residues. two years field experiments were conducted to evaluate the effect of wheat residue management on yield, yield component and morphophysiological characteristics of corn. experimental design was split plot us...
The purpose of this study is to assess Farmers’ attitude toward the soil conservation practices in the Kushk-Abad catchment basins in the province of Khorasan Razavi. A sample of 200 farmers was randomly selected from 1200 farmers living in Kardeh catchment basin. Data collection was done through a questionnaire that was administered in 2014. Validity of the questionnaire was confirmed by a pan...
With the measurement of net primary productivity and vegetation coverage fraction based on remote sensing data,the terrestrial ecosystem service value of China in 2000 was quantitatively estimated as 9.17 x 10(12) yuan (RMB). The spatial distribution of the ecological service value showed a decreasing trend from southeast China to northwest China, which was consistent with the regional distribu...
James L. Heilman,* Marcy E. Litvak, Kevin J. McInnes, James F. Kjelgaard, Ray H. Kamps and Susanne Schwinning 1 Department of Soil and Crop Sciences, Texas A&M University, College Station, TX 77843-2474, USA 2 Department of Biology, University of New Mexico, Albuquerque, NM, 87131-0001, USA 3 Natural Resources Conservation Service, Corpus Christi, TX 78410-4466, USA 4 Department of Biology, Tex...
J. Skousen and J. Sencindiver, Division of Plant and Soil Sciences, West Virginia University, Morgantown, WV 26506-6108; K. Owens, Resolve Environmental Services, Monroe, NC 28112; S. Hoover, Natural Resources Conservation Service, Middlebourne, WV 26149. Scientific contribution No. 2647 from the West Virginia Agricultural and Forestry Experiment Station, Morgantown. This research was funded by...
This paper presents some results from a survey carried out in 2004 among 223 olive tree farmers from mountainous areas in the Spanish Southern provinces of Granada and Jaén regarding the adoption of soil conservation and management practices. Olive tree groves in mountainous areas are subject to a high risk of soil erosion and incur a higher cost of soil conservation. This results in greater di...
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