Архив метки: land degradation

APPLICATION OF THE METHODOLOGY OF LAND DEGRADATION NEUTRALITY FOR THE TERRITORY OF CASPIAN SEA REGION

Arid Ecosystems

UDC 502.35; 504.052

Kust G.S., Shklyaeva D.S., Lobkovskiy V.A., Andreeva O.V. APPLICATION OF THE METHODOLOGY OF LAND DEGRADATION NEUTRALITY FOR THE TERRITORY OF CASPIAN SEA REGION // Arid Ecosystems. 2024. Vol. 30. № 2 (99). P. 24-35. | PDF

For more than 20 years studies of the Caspian Region have been carried out under the Framework Convention for the Protection of the Marine Environment of the Caspian Sea (Tehran Convention). Its objective is to protect the Caspian Sea and surrounding terrestrial landscapes from negative impacts. For the first time, the results of a comparative assessment of coastal land dynamics are presented for 5 countries on the basis of land degradation neutrality (LDN): the Republic of Azerbaijan, the Islamic Republic of Iran, the Republic of Kazakhstan, the Russian Federation and Turkmenistan. This approach made it possible to identify the main trends in land dynamics in the region for different observation periods, including those for individual countries and regions. The results are presented in cartographic form. The deterioration of the current situation is currently typical for most of the Caspian Region due to intensified degradation processes. The main “hot spots” of desertification are described. At the same time, the dynamics of land degradation varies in different directions for individual parts of the region and observation periods. A careful selection of different periods of comparison and baselines can help track changes in land dynamics and identify peaks in its improvement and deterioration.

Keywords: land degradation neutrality, Caspian Sea, land degradation, desertification.

Funding. The research was carried out within the framework of the state theme of the IG RAS FMWS-2022-0001 «Spatial and temporal problems of sustainable land use in the context of global climate change» (spatial data processing and formulation of the main provisions and conclusions).

DOI: 10.24412/1993-3916-2024-2-24-35
EDN: YDDPSD

SCIENTIFIC BASIS FOR SETTING LAND DEGRADATION NEUTRALITY TARGETS IN TURKMENISTAN

Arid Ecosystems

UDC 502.35;504.052

Kust G.S., Durikov M.H., Lobkovskiy V.A., Andreeva O.V., Nepesov M.D., Mamedov B.K., Nikolaev N.V. SCIENTIFIC BASIS FOR SETTING LAND DEGRADATION NEUTRALITY TARGETS IN TURKMENISTAN // Arid Ecosystems. 2022. Vol. 28. № 4 (93). P. 115-131. | PDF

Setting National targets for achieving Land Degradation Neutrality (LDN) and establishing monitoring systems for indicators is an important strategic objective in combating desertification and preventing land degradation in Turkmenistan, arising from the implementation of the UN Sustainable Development Goal 15.3 2030. The paper demonstrates the possibility of integrating of the LDN global indicators in the National Land Cover Monitoring System, which is currently under development, and provided with statistical and geoinformation data for the entire territory of the country. The paper shows how approaches can be developed to integrate the system of LDN indicators into the National Land Surface Monitoring System of Turkmenistan, which is currently under development, with the provision of statistical and geoinformation data for the entire country. Despite important new data obtained using global approaches, a reliable LDN monitoring basing on national data is currently not fully feasible, due to the fact that the global indicators are not sufficiently supported by available national data and do not correspond to global proxy indicators of dynamics land cover, land productivity and soil organic carbon. It is recommended to use cartographic and stock data collected and processed in the late 1980s-90s of the 20th century as a «baseline» for monitoring land degradation, as well as assessment data of the statement of protected areas. Additional and alternative LDN indicators of particular importance for Turkmenistan are proposed: salinization of soil and land, soil deflation, climate aridity, dust storms.

Keywords: Land Degradation Neutrality, Turkmenistan, land degradation, indicators, monitoring.

Financing. The article was prepared within the framework of the project of the GIZ Regional Program «Integrated Land Use taking into account climate change in Central Asia» (ILUCA) – collection of material and preliminary conclusions; topics of the State Assignment of the Institute of Geography of the Russian Academy of Sciences No. FMWS-2022-0001 «Spatial and temporal problems of sustainable land use in the context of global climate change» (spatial data processing and formulation the main provisions and conclusions).

DOI: 10.24412/1993-3916-2022-4-115-131

EDN: LVMDUZ

FIELD AND REMOTE RESEARCHES AND MATHEMATICAL MODELING OF MOUNTAIN-STEPPE ECOSYSTEMS ON LANDSCAPE BASIS

Arid Ecosystems

Cherkashin A.K., Bibaeva A.Yu. FIELD AND REMOTE RESEARCHES AND MATHEMATICAL MODELING OF MOUNTAIN-STEPPE ECOSYSTEMS ON LANDSCAPE BASIS // Arid ecosystems. 2020. V. 26. № 4 (85). P. 108-115. | PDF

The results of research, construction and information support of ecosystem models based on spatial data using landscape GIS technology are discussed. The article considers the features of building models to describe the degradation of mountain-steppe ecosystems in the coastal zone of the lake Khubsugul (Mongolia) under the influence of natural and anthropogenic factors, taking into account the altitude differentiation of different types of ecosystems. Mathematical models are theoretically justified in the form of ordinary differential equations on a parameter and partial derivatives on factors of influence in terms of the reliability of ecosystem functioning.

Key words: mountain-steppe ecosystems, mathematical modeling, landscape-typological mapping, Ciskhubsugul landscapes, land degradation, grazing pressure.

DOI: 10.24411/1993-3916-2020-10125

LAND  DEGRADATION NEUTRALITY – THE NEW GLOBAL CONCEPT AND METHODOLOGY FOR THE DRYLANDS RESEARCHING AT NATIONAL LEVEL

Arid Ecosystems

Kust G.S.,  Andreeva O.V.,  Lobkovskiy V.A. LAND  DEGRADATION NEUTRALITY – THE NEW GLOBAL CONCEPT AND METHODOLOGY FOR THE DRYLANDS RESEARCHING AT NATIONAL LEVEL // Arid ecosystems. 2020. V. 26. № 2 (83). P. 3-9. | PDF

The assessment based on the applying of the concept of Land Degradation Neutrality (LDN) and of the method for assessing LDN indicators for Russian drylands is presented for the first time. It is shown that the LDN is not reached wherever in the arid and semiarid regions in Russian Federation, since the proportion of land that is degraded over total land area in 2001-2015 is everywhere positive and ranges from 9 to 67%. The concept of “LDN index” is introduced for making convenient to compare and rank individual territories. An assessment of some arid regions of Russia according to this indicator is provided. The obtained preliminary results need to be validated and refined based on a comparison with the available national data collected by traditional methods.

Keywords: land degradation neutrality, desertification, drylands, land degradation.

DOI: 10.24411/1993-3916-2020-10089