%0 Dataset
%T Fractured land in West Turkmenistan and its agricultural development approach
%J Arid Land Ecology and Resources Science Data Center
%I Arid Land Ecology and Resources Science Data Center(data.dcxjegi.cn)
%U https://data.dcxjegi.cn/portal/metadata/521c52cb-ed9b-468a-bec3-c2f6450fc87e
%W NCDC
%R 10.12389/ariddc.01994
%A Documentation Information Center
%K ;
%X Cracked soil and its varieties are widely distributed in the desert areas of Central Asia, and in many cases constitute a part of land resources suitable for the expansion of irrigation systems. For example, in the ancient Delta region of the Amu Darya River, cracked soil and similar soils account for more than half of the land resources suitable for irrigation. The same is true for the southern and southwestern regions of Turkmenistan. Here, in the upper part of the plot adjacent to the koppet mountain, there are mainly high fertility light gray calcareous soil without improvement. In the lower lying areas closer to the sea and Karakum Desert, the soil cover is dominated by fissured soil and fissured soil, which is mixed with a large area of saline soil and part of sand. In these areas, cracked soil and similar soils account for at least 70% of the soil cover. Fissured soil is also found in the sandy land of Karakum and Sangsang. The cracked soil here has a very high clay content, is often salinized, and is extremely compact (hard).It is not particularly difficult to reclaim and irrigate lightly meadow soil. However, in fact, there is no improvement and reclamation method for cracked soil. Obviously, it is necessary to solve the complex problem of improvement to develop irrigated agriculture in the cracked soil distribution area.Irrigation agriculture has little experience in the management and utilization of cracked soil and similar soils, although in terms of topographic conditions, the vast majority of areas occupied by cracked soil are extremely conducive to the development of irrigation. The reclamation of fissured soil faces many difficulties: they have low humus content, weak biological activity, a layer of hard crust 5-7 cm thick on the surface, no structure, most of which have heavy clay mechanical composition, often salinized, high alkalinity value, and often contain a certain amount of free soda and magnesium carbonate, and there is exchangeable sodium i