Type Division of Comprehensive Management and Administration Way in the Qinghai Lake Watershed Based on GIS Technology
Received date: 2013-06-26
Request revised date: 2013-09-28
Online published: 2015-01-15
Copyright
On basis of characteristics of physical environment and ecological system in the Qinghai Lake Watershed, and with the vegetation distribution image in 2009 in the Qinghai Lake Watershed as working map, combing with DEM altitude data, grassland type in the Qinghai Lake Watershed, administrative map, we considered synthetically factors of altitude, vegetation distribution and social economy and so on, and did three-level partition on Qinghai Lake Watershed. Based on the partition, we put forward the basic ideas of managing the ecological and environmental problems in every partition, and ways and countermeasures of ecological and environmental problems for comprehensively managing desertification, wetland shrinkage and grassland degradation. Primary partition was divided into three level areas, which were lake plain, hilly area and high mountains; Secondary partition on the basis of the primary partition, divided into grassland, river valley area and sandy area; Three-level partition was mainly to partition the areas around Qinghai Lake, the area of arable land, the grassland, the wetland and the desertification land. In this research, the natural characteristics of each region were described. On the basis of the division we proposed the existing main problems and reasons, and put forward the comprehensive control methods to solve the ecological and environmental problems which were land desertification, grassland degradation and wetland shrinking. The comprehensive control methods were following: 1) We should strengthen the rational allocation water resources of Qinghai lake basin and ecological environment management to solve the problem of the water surface decline of the Qinghai lake; 2) For the shrinking of wetlands, vegetation degradation and other issues, should strengthen vegetation protection and recovery on the banks of the river wetland; 3) For excessive reclamation and lagging irrigation, should return farmland to forest and grass and vegetation restoration should be strengthened; 4) For the problems caused by some poisonous weeds on the grassland area, should grasp the characteristics of the poisonous weeds, avoid the poisonous weeds growing season, or choose non-sensitive livestock grazing; 5) In the sand area, moderate and light desertification area would need to management, should adopt mechanical and biological measures, the potential desertification areas need to be timely prevention, tall sand hill need not control, should keep natural desert landscape.
Key words: Qinghai Lake; type division; administration way
ZHAN Xiu-li , YAN Ping , TAN Zun-quan . Type Division of Comprehensive Management and Administration Way in the Qinghai Lake Watershed Based on GIS Technology[J]. SCIENTIA GEOGRAPHICA SINICA, 2015 , 35(1) : 122 -128 . DOI: 10.13249/j.cnki.sgs.2015.01.122
Fig.1 Primary partition of the Qinghai Lake Watershed图1 青海湖流域一级分区 |
Fig.2 Secondary partition in the Qinghai Lake Watershed图2 青海湖流域二级分区 |
Fig.3 Three-level partition of key management areas around Qinghai Lake图3 环湖重点治理区三级分区 |
The authors have declared that no competing interests exist.
[1] |
|
[2] |
|
[3] |
|
[4] |
|
[5] |
|
[6] |
|
[7] |
|
[8] |
|
[9] |
|
[10] |
|
[11] |
|
[12] |
|
[13] |
|
[14] |
|
[15] |
|
[16] |
|
[17] |
|
[18] |
|
[19] |
|
[20] |
|
[21] |
|
[22] |
|
[23] |
|
[24] |
青海湖流域生态环境保护与修复编辑委员会.青海湖流域生态环境保护与修复[M].西宁:青海人民出版社,2008.
|
[25] |
|
[26] |
|
[27] |
|
/
〈 | 〉 |