Nurtazin S.T., Salmurzauly R., Niels Tivs, Baybagysov A.M., Iklasov M.K., Muhitdinov A.M., Mirasbek E.A. Causes and trends in the transformation of ecosystems of the delta river Ili

1. al-Farabi Kazakh National University. The Republic of Kazakhstan, Almaty; 2.World Agroforestry Centre. Central Asia University, Republic of Kirgizstan. Bishkek; 3. Kazakh National research technical University after K.I. Satpaev. The Republic of Kazakhstan, Almaty

Abstract

This paper shows the results of studies the main reasons for the negative transformation of various ecosystems of the Ili-Delta in the period of
1979-2014. The studies were conducted on the basis of data analysis on
dynamics of the river hydrological regime, weather conditions, economic
characteristics, economic and other activities of the local communities,
as well as field studies on land cover, vertebrate fauna of the region and
the study of multi-satellite images. Analysis of long-term (from 1970 to
2013) climatic data from Bakanas and Kuigan meteorological stations, that
located in the survey area showed a clearly pronounced trend of the regional increase in average annual surface air temperature. So for the above
mentioned period, an increase for 1,4 0 С and a decreasing trend of average annual precipitation over the same period on 10 mm, which is an additional factor contributing to the processes of drying and desertification of
hydromorphic ecosystems of the Ili-Delta.
Key words: Anthropogenic pressure, climate warming, ecosystem
transformation, GIS, hydrology, Ili-Delta, Ili-Balkhash basin, water content, weather conditions.