Study on the Impact of Land Consolidation Project on Soil Quality in Bainijing Town, Dingbian County

The Loess Hilly–Gully region (LHGR) is the most serious soil erosion area in the world. For the small watershed with high management in this area, the scientific problem that has been paid attention to in recent years is the impact of the land consolidation project on the erosion environment in the gully region. In this study, the 3D simulation method of vegetation, eroded sediment and pollutant transport was innovated based on the principles of erosion sediment dynamics and similarity theory, and the impacts of GLCP were analyzed on the erosion environment at different scales. The verification results show that the design method and the scale conversion relationship (geometric scale: λl = 100) were reasonable and could simulate the transport process on the complex underlying surface of a small watershed. Compared with untreated watersheds, a significant change was the current flood peak lagging behind the sediment peak. There were two important critical values of GLCP impact on the erosion environment. The erosion transport in HMSW had no change when the proportion was less than 0.85%, and increased obviously when it was greater than 3.3%. The above results have important theoretical and practical significance for watershed simulation and land-use management in HMSW.

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Land Policy and Food Prices: Evidence from a Land Consolidation Program in Rwanda

Journal of Agricultural & Food Industrial Organization ◽

10.1515/jafio-2021-0010 ◽

2021 ◽

Vol 19 (1) ◽

pp. 63-73

Author(s):

Aimable Nsabimana ◽

Fidele Niyitanga ◽

Dave D. Weatherspoon ◽

Anwar Naseem

Keyword(s):

Food Prices ◽

Land Policy ◽

Land Consolidation ◽

Easy Access ◽

Food Crops ◽

White Potato ◽

Before And After ◽

Price Differences ◽

The Impact ◽

Over Time

Abstract Rwanda’s “Crop Intensification Program (CIP)” is primarily a land consolidation program aimed at improving agricultural productivity and food security. The program, which began in 2007, focuses on monocropping and commercialization of six priority crops: maize, wheat, rice, white potato, beans, and cassava. CIP has facilitated easy access to improved seed stocks, fertilizer, extension services, and postharvest handling and storage services. Although studies have documented the impact of CIP on changes in farm yield, incomes, and productivity, less is known about its impact on food prices. In this study, we examine the crop-food price differences in intensive monocropped CIP and non-intensive monocropped CIP zones in Rwanda. Specifically, the study evaluates price variations of beans and maize along with complementary food crops in intensive and non-intensive monocropped zones before and after the introduction of the CIP policy. We find that the CIP policy is not associated with differences in CIP crop prices between the intensive and non-intensive monocropped zones. Over time, prices increased for CIP crops but generally, the crop prices in the two zones were cointegrated. Prices for non-CIP crops in the two different zones did show price differentials prior to the implementation of CIP, with the prices in intensive monocropped zones being greater than in the non-intensive monocropped zones. Moreover, the prices in intensive areas are cointegrated with prices in non-intensive areas for maize and beans and these prices are converging. This indicates that farmers who intensively produced one CIP crop were able to go to the market and purchase other food crops and that price differences between zones have decreased over time, potentially making the CIP intensive farmers better off.

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Effect of Tillage Systems on Soil Organic Carbon and Soil Quality in a Purple Paddy Soil

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.183-185.1190 ◽

2011 ◽

Vol 183-185 ◽

pp. 1190-1194

Author(s):

Jun Ke Zhang ◽

Qing Ju Hao ◽

Chang Sheng Jiang ◽

Yan Wu

Keyword(s):

Organic Carbon ◽

Soil Quality ◽

Paddy Soil ◽

Conventional Tillage ◽

Water Infiltration ◽

Purple Soil ◽

Tillage Systems ◽

Field Station ◽

No Till ◽

The Impact

The impact of conservation tillage practices on carbon sequestration has been of great interest in recent years. This experiment analyzed the organic carbon status of soils sampled at depth increments from 0 to 60 cm after 20 years in a purple paddy soil. The tillage experiment was established in the Key Field Station for Monitoring of Eco-Environment of Purple Soil of the Ministry of Agriculture of China, located in the farm of Southwest University (30°26′N, 106°26′E), Chongqing. In this paper, five tillage treatments including conventional tillage with rice only system (DP), conventional tillage with rotation of rice and rape system (SL), no-till and ridge culture with rotation of rice and rape system (LM), no-till and plain culture with rotation of rice and rape system (XM) and tillage and ridge culture with rotation of rice and rape system (LF) were selected as research objectives to measure SOC storage and stratification ratio of SOC (CSR). The SOC storage under different tillage systems was calculated based on an equivalent soil mass. The CSR can be used as an indicator of soil quality because surface organic matter is essential to erosion control, water infiltration, and the conservation of nutrients. Results showed that in soil under no-till SOC was concentrated near the surface, while in tilled soil SOC decreased equably with the increase of soil depth. The difference of SOC contents between the five tillage systems was the largest in the top soil and the lowest in the bottom soil. The order of SOC storage was LM (158.52 Mg C•ha-1) >DP (106.74 Mg C•ha-1) >XM (100.11 Mg C•ha-1) >LF (93.11 Mg C•ha-1) >SL (88.59 Mg C•ha-1), LM treatment was significantly higher than the other treatments. The CSR of 0-10/50-60 cm was 2.65, 2.70 and 2.14 under LM, XM and LF treatments, while 1.54 and 1.92 under DP and SL treatments. We considered CSR>2 indicate an improvement in soil quality produced by changing from tillage to no-tillage, as well as changing from plane to ridge. Overall, long-term LM treatment is a valid strategy for increasing SOC storage and improving soil quality in a purple paddy soil in Southwest China.

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Distribution and Assessment of Heavy Metals in Trifolium dubium (Little Hop Clover) and the Impact of Soil Quality

Analytical Letters ◽

10.1080/00032719.2018.1523912 ◽

2018 ◽

Vol 52 (7) ◽

pp. 1165-1176

Author(s):

Thaveshan Gounden ◽

Roshila Moodley ◽

Sreekantha Babu Jonnalagadda

Keyword(s):

Heavy Metals ◽

Soil Quality ◽

The Impact

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Determination of environmental problems of agricultural nature management based on modular geochemical indicators

RUDN Journal of Ecology and Life Safety ◽

10.22363/2313-2310-2020-28-1-57-64 ◽

2020 ◽

Vol 28 (1) ◽

pp. 57-64

Author(s):

Almobarak Falak ◽

Lidia A. Mezhova

Keyword(s):

Land Use ◽

Natural Resources ◽

Soil Quality ◽

Agricultural Land ◽

Methodological Approach ◽

Arable Land ◽

Animal Husbandry ◽

Environmental Problems ◽

Nature Management ◽

The Impact

Central Chernozem is one of the largest agricultural regions in Russia. As a result of the long period of natural resources use the anthropogenic load on agricultural lands is increasing. The result of agricultural nature management is the increase of land degradation processes. Voronezh Region has a high agro-climatic potential, most of the territory is occupied by agricultural land, arable land prevails among them. Soil degradation is the most acute problem. There is a need to assess the impact of agricultural natural resources use on land resources of the region. Modular coefficients for assessment of geochemical impact of agriculture and animal husbandry on agricultural systems are proposed. The developed factor is a tool for identification of negative land use processes and environmental problems. The article deals with the issues of ecologically oriented, scientifically grounded strategy of agricultural nature management. Ecological approach to assessment of soil quality in the future will develop a strategy for balanced land use. The article has a scientific and practical character and is aimed at the development of methods of ecological assessment of soil quality. The proposed methodological approach identifies destructive processes in soils. For ecologically oriented strategy of development of regions it is important to define maximum allowable agricultural loads for preservation of sustainable environment.

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Płatności prośrodowiskowe jako instrument ochrony użytkowej biosfery w rolnictwie

Studia Iuridica Lublinensia ◽

10.17951/sil.2020.29.2.37-48 ◽

2020 ◽

Vol 29 (2) ◽

pp. 37

Author(s):

Beata Jeżyńska

Keyword(s):

Environmental Factors ◽

Soil Quality ◽

Agricultural Policy ◽

Common Agricultural Policy ◽

Agricultural Production ◽

Environmental Aspects ◽

The Common ◽

New Guidelines ◽

Quality Assessments ◽

The Impact

<p>The need to keep the expected level of production in agriculture generates a serious burden on the environment. The most important environmental factors exposed to the impact of agriculture include biodiversity and water, air, and soil quality. Assessments of all these environmental aspects related to agricultural production are negative. The condition of the agricultural environment has been subject to rapid deterioration. In such a situation, environmental instruments have drawn particular attention from the European legislature when developing new guidelines of the Common Agricultural Policy to be applicable after 2020.</p>

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