environment and current issues

main cities of gansu: dunhuang, jiayuguan, lanzhou, wuwei, xiahe, zhangye, tianshui, yumen, jinchang

gansu faces an adverse ecological environment -- an acute shortage of water resources, sparse vegetation, and a serious water and soil loss. every year, the section of the yellow river in gansu washes away more than 500 million tons of silt containing about 50 kilograms of organic matters. these include 3.5 kilograms of pure nitrogen and 2 kilograms of pure phosphorus. the washed-away silt accounts for one-third of the annual silt the yellow river carries to the lower reaches.

in recent years, biological methods, the construction of projects, and technical measures have been made on a large scale to bring water and soil loss under control. effort was also taken to improve the ecological environment on the loess plateau. cultivated land was turned back into forest and grassland in an effort to strengthen the protection and maintenance of the ecological environment. the readjustment of the agricultural structure will be stepped up, with stress on readjusting the variety of agricultural products, the ratio between the development of grain and cash crops, and the locations of the various economic sectors.

 

 

 

 

 

 

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last updated: march 10, 2006

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