Climate Change and Dryland Agricultural Ecosystem Management

knowledge of the mechanism of marine ecosystem and feedback. The author has pointed out that the
basic productivity of the ocean is the reproductive capacity of phytoplankton and put forward the new
ideas, the new path of bringing the northern dust into the regional ocean governance to achieve the
symbiotic linkage of dust, waters, and ecology and construct an environment-friendly and sustainable
development road.
Keywords: sandstorm; Long-range transport; marine ecosystem; Northern China.
The effect of ecological management in the upper reaches of Heihe
River
Juan Wu*
College of Business Administration, Zhejiang Gongshang University, Hangzhou, 310018, People’s Republic of China.
Abstract:
Heihe River bred the prosperity and the civilization in the river basin by its broad heart. Once Heihe
River is the 〝life river〞 and〝mother river〞of various national people who live here from
generation to generation. However influenced by the global climatic change and human activities, the
natural ecological environment of Heihe River basin has encountered the serious destruction.
Furthermore, in order to realize the social economy sustainable development of the entire river basin,
it’s important to clear about attaching importance to Heihe river basin, specially the ecological
environmental management in the upper reaches.
The ecological e
nvironment in the upper reaches of a river is the key to the protection in a whole watershed. The major
problems existing in the upper reaches of Heihe River are given as follow:
(1) Because of unauthorized deforestation, the area of the forest decreases severely. The function of
water conservation forest declines.
(2) Rodent disaster indulging in willful persecution aggravates the damage to the grassland. At the
same time, water and soil run away frequently.
(3) Overgrazing in winter and spring leads to the grassland deterioration severely. The regenerative
ability of pasture grass descends, so grassland emerges desertification.
Faced with the problems mentioned above, Chinese government adopt measures including enclosing
meadow land, enclosing natural forest, and afforestation to increase the water conservation ability in
the upper reaches and control the ecology deterioration. After 3 year’s ecological management, it’s
necessary to evaluate the effect of the ecological management to the ecology of Heihe River Basin.
The main purpose of this paper is to evaluate the effect of the ecological management in the upper
reaches of Heihe River. This study could provide basic support for the synthesized management in the
whole Heihe River watershed in the future and provide the essential basis for water resource
* Corresponding author, Juan Wu, Email: baihewj@126.com, Phone: +86-0571-13656690537
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