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Establishment of a New Migration Monitoring Network across China for the Siberian Crane and Other Waterbirds
Technical Brief 2.09 MB PDF

Poyang Lake Ecology Study
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Momoge National Nature Reserve

Geographic Location

The site is located between 45° 45’ - 46° 10’ N and 122° 27’ - 124° 04’ E, at 128-167.7 m above the sea level, in the Zhenlai County, northwest of Jilin Province and 70 km from Da’an. The climate is semi-arid with an average annual rainfall of 391.8 mm. Most of the rain falls during the months of June, July and August. Summers are warm (maximum 38 °C) and winters extremely cold (-32 °C). July is the hottest month (average temperature is 23.5 °C), while the coldest month is January (average temperature is -17.4 °C)

Overview

The site is composed of a complex of meandering marshy rivers and streams, old river courses, small freshwater to brackish lakes up to 2 m deep, marshes, and wet grassland. Parts of the site are still forested, and the land has been cleared for cultivation and oil extraction. Wetlands cover over 90% of the Reserve. This typical wetland ecosystem is rich with natural resources. It has become an important roosting and breeding ground for birds migrating through northeast Asia. Total site area is ~144,000 ha.

The site is fed by the Nenjiang River system, which includes the Yaoer River, which originates in Suoerqi Mountain of Daxinganling, flows along the southern boundary of the site; and the seasonal Erlongtao and Huerda Rivers.

Conservation Status

Momoge serves as an important wintering site for migratory birds and also as breeding grounds for some rare and endangered bird species. The site regularly supports over 20,000 waterbirds, representing a total of 193 species, of which migratory birds comprise approximately 174 species. The number of nationally protected species recorded at the site is 32, including the Red-crowned Crane, Oriental White Stork and Siberian Crane.

Water resources in Momoge are currently diverted for other uses such as irrigation, aquaculture, and industries, thus reducing the amount of water available to maintain the wetland ecosystem. Flooding during the rainy season is also a problem because there is no system to absorb the access water and release it slowly during dry periods. Some human activities (grazing, crop cultivation, reed burning) create disturbances, which seriously affect breeding and roosting sites for birds and lead to habitat deterioration. Development and operation of oil fields is also causing some disturbance and water pollution.

SCWP Objectives

Momoge is a Phase 2 site for the SCWP, requiring low-level intervention to address threats arising from inappropriate natural resource and water resource management. The project will aim to establish three protection stations (for several listed species); develop a site management committee and develop a site management plan; conduct studies on natural resource use, including assessment of globally significant biodiversity (habitats, species) and socio-economic uses of natural resources; and monitor changes in distribution and extent of wetland habitats and water quality monitored, with particular reference to oil field operations. Prior to the end of the project, an environmental assessment of oilfield operations, and recommendations for oil pollution prevention and control measures will be completed. And the project aims to establish a public education and information center. The project is targeting an increase of 35% in the area designated within the National Nature Reserve.

 


Taking advantage of the spring rise in the Nengjiang river from 1 April to 1 May 2005, Momoge National Nature Reserve diverted over 5 million cubic meters of water from the Baishatan dam. As a result, a large area of wetlands has been restored, improving waterbird habitat .  Crane monitoring was conducted during the spring migration period and found more than 800 Siberian cranes stopping over in the Reserve.

 

River bed in Momoge NNR

Grass beds in Momoge NNR

Red-crowned cranes

Red-crowned cranes





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Last update: March 23, 2005.

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