Biological rehabilitation in the degraded land, a case study of Shariingol Soum of Selenge Aimag in Mongolia

2015 ◽  
Vol 15 (2) ◽  
pp. 106-112
Author(s):  
B Khishigjargal ◽  
N Kishigsuren ◽  
Sh Dolgormaa ◽  
Ya Baasandorj
Keyword(s):  
Land Use ◽  
Plant Regeneration ◽  
Soil Fertility ◽  
Land Degradation ◽  
Animal Husbandry ◽  
Mining Activities ◽  
Degraded Land ◽  
Land Usage ◽  
Abandoned Land

Land is degraded and abandoned by intensive usages from mining and agriculture activities in the northern part of Mongolia. Especially agriculture land usage without rotation is one of the reasons of soil fertility loss. Land degradation is not only becoming an ecological degradation, but also decrease of economic benefits.We have conducted a survey on the planting perennial in the abandoned and degraded land. Planting perennials in the degraded lands is considering a one of the important technologies for plant regeneration (Institute of Geoecology, MAS. 2002). Lands are traditionally used for pasture and animal husbandry, but in recent decades multiple land use has increased rapidly in Mongolia. Especially, the mining activities have been implemented rapidly.From the result, we can see that, the wintering of Medicago falcata L is 70-76 percent and yield is 12-16.4 centner/ha in the abandoned land, and 80-85 percent for wintering and yield is 2-3.5 centner/ha in the degraded land from mining activities. Due to planting perennial, xerophyte plants increased by 12 percent and mesophyte plants increased by 45 percent in the abandoned land. In contrast, mesophyte plants decreased by 2 percent, and xerophyte plants decreased by 8 percent in the degraded land from mining activities.Journal of agricultural sciences №15 (02): 106-112, 2015

The Impact of Land Use/Land Cover Changes on Land Degradation Dynamics: A Mediterranean Case Study

2012 ◽  
Vol 49 (5) ◽  
pp. 980-989 ◽  
Author(s):  
S. Bajocco ◽  
A. De Angelis ◽  
L. Perini ◽  
A. Ferrara ◽  
L. Salvati
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Land Degradation ◽  
Land Cover Changes ◽  
Land Use Land Cover ◽  
The Impact

Land change effects on ecosystem degradation across Nigerian agro-ecological zones from 1975 through 2020

2021 ◽  
Author(s):  
Felicia Akinyemi ◽  
Chinwe Ifejika Speranza
Keyword(s):  
Land Use ◽  
Land Degradation ◽  
Vegetation Index ◽  
Land Change ◽  
Land Area ◽  
Degraded Land ◽  
Vegetation Productivity ◽  
Ecological Zones ◽  
Settlement Areas ◽  
Agro Ecological Zones

<p>Land system change is implicated in many sustainability challenges as its alteration impacts ecosystems and exacerbate the vulnerability of communities, particularly where livelihoods are largely dependent on natural resources. The production of a land use-cover map for year 2020 extended the time-series for assessing land use-cover dynamics over a period of 45 years (1975-2020). The case of Nigeria is examined as the land area encompass several agro-ecological zones. The classification scheme countries utilise for estimating Land Degradation Neutrality baseline and monitoring of the Sustainable Development Goal 15.3.1 indicator (proportion of degraded land over total land area) was used, based on seven land use-cover classes (tree-covered area, grassland, cropland, wetland, artificial surface area, otherland, and waterbody). Severity of land degradation, computed as changes in vegetation productivity using the Enhanced Vegetation Index (EVI), as well as changes in ecosystem service values were examined across the different land use-cover types, in areas of change and persistence. Land degradation is most severe in settlement areas and wetlands with declining trends in 34% of settlement areas and 29% in wetlands respectively. About 19% of tree-covered areas experienced increasing trends. In some areas of land use-cover persistence, vegetation productivity declined despite no land change occurring. For example, vegetation productivity declined in about 35% and 9% of persistent wetlands and otherland respectively between 2000 and 2020, whereas there was improvement in 22% of persistent grasslands, 18% of persistent otherlands and 12% of persistent croplands. In land change areas, about 12% and 8% of wetlands and tree-covered areas had declining vegetation trends respectively, whereas it improved the most in croplands (20%), and grasslands (16%). With some wetland, cropland and otherland areas degrading the most, protecting these critical ecosystems is required to sustain their functions and services. The finding that vegetation productivity may decline in areas of persistence underscores the importance of intersecting land use-cover (in terms of persistence and change) with vegetation productivity to identify pathways for enhancing ecological sustainability.</p>

scholarly journals Land Degradation Situation in Bangladesh and Role of Agroforestry

1970 ◽  
Vol 4 (1) ◽  
pp. 19-25 ◽  
Author(s):  
MK Hasan ◽  
AKM Ashraful Alam
Keyword(s):  
Land Use ◽  
Soil Erosion ◽  
Soil Fertility ◽  
Key Words ◽  
Land Degradation ◽  
Agricultural Production ◽  
Agricultural Productivity ◽  
Soil Health ◽  
The World

Degradation of land is a vital issue throughout the world with the particular references to Bangladesh as it a threat to agricultural productivity. Agroforestry, a land use system is being popular in many countries to protect the land from various types of degradation. Studies have proved that agroforestry can check soil erosion to some extent, increase soil fertility, reduce salinity, alkalinity, acidity and desertification etc. ultimately improve soil health which keep the land suitable for agricultural production. The article has drawn on the basis of various reviews focusing the land degradation situation of Bangladesh and potentialities of agroforsetry. Key words: Land degradation, desertification, agroforestry.

scholarly journals SPATIAL-TEMPORAL CHANGES OF LAND DEGRADATION CAUSED BY NATURAL AND HUMAN INDUCED FACTORS: CASE STUDY OF BULGAN PROVINCE IN CENTRAL MONGOLIA

2021 ◽  
Vol XLIII-B4-2021 ◽  
pp. 79-85
Author(s):  
S. Dalantai ◽  
E. Sumiya ◽  
Y. Bao ◽  
M. Otgonbayar ◽  
U. Mandakh ◽  
...  
Keyword(s):  
Land Use ◽  
Land Degradation ◽  
Geographical Information ◽  
Land Use Type ◽  
Degraded Land ◽  
Gis And Remote Sensing ◽  
Central Mongolia ◽  
Temperature And Precipitation ◽  
Multi Temporal ◽  
Land Degradation And Desertification

Abstract. Land degradation and desertification have been ranked as a major environmental issue for arid and semi-arid regions is a comprehensive concept that depends on many factors. Detecting early land degradation is a significant issue of social and environmental with geographical information system (GIS) and remote sensing methods has been used for the interpretation of spatial-temporal data. In this study, the assessment of the current state of land degradation is influenced by several complexes of the natural and anthropological causes. The results of land degradation assessment carried out for Bulgan province of Mongolia using multi-temporal resourced data as climate condition (vegetation growing season of temperature and precipitation), land use type (density of seasonal camps of herder households, roads, cropland, settlements) and MODIS vegetation product data were used to estimate land degradation change period from 2000 to 2018 and accessed it’s for effecting on degradation over last 19 years. We obtained a prediction of land degradation integrated with indicators and based on the spatial pattern of human influence. One of the main indicators for land degradation was land use type as pasture usage of livestock husbandry in Bulgan province, overgrazing is the most widespread cause of land degradation, particularly around permanent location of herders and livestock affecting about moderately and slightly degraded land is 72.78% of study total area.

scholarly journals Land Degradation and Challenges of Food Security

2019 ◽  
Vol 11 (1) ◽  
pp. 63 ◽  
Author(s):  
Gauri Shankar Gupta
Keyword(s):  
Food Security ◽  
Soil Fertility ◽  
Land Degradation ◽  
Agricultural Policy ◽  
Arable Land ◽  
Intensive Agriculture ◽  
Technological Innovations ◽  
Degraded Land ◽  
The World ◽  
Life On Earth

Land degradation has emerged as a serious problem during the last few decades. Soil fertility has declined considerably in many parts of the world due to intensive agriculture, over-grazing, water pollution, increasing use of fertilizers and pesticides, salinization, deforestation and accumulation of non-biodegradable waste. Vast tracts of land are facing desertification. Climate change is further aggravating land degradation, soil erosion and soil fertility. Evidence suggests during the last 6-7 decades over 35 percent of arable land has been degraded due to human induced activities. Soil being the natural medium for plant growth supports all life on earth. Rapidly increasing population, growing food-waste and declining soil fertility are posing serious challenges to humanity for future food security. Therefore, land degradation must come to a halt. Education, changes in agricultural policy and technological innovations are instruments that should be used for restoration of degraded land and stop further land degradation.

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