IMHE OpenIR  > 成都山地所知识仓储(2009年以前)
李椷; 罗德富
Corresponding Author李椷
Source Publication中国沙漠
Other Abstract 沙漠化问题及其带来的巨大危害与后果已经引起人们的关注。然而,我国南方许多山地与丘陵区正在广泛、迅速发展的山地荒漠化和谷地沙石化过程,同样不能忽视。它使这些地区的自然环境变劣、生态平衡严重失调,土地退化和生产能力衰退或枯谒,最终导致整个自然环境向恶性循环发展的严重恶果。 我国南方山地荒漠化和谷地沙石化的土地面积估计约1.0—1.3亿公顷。主要分布在云南、四川、贵州、江西等十多个省(区),其中云南的小江流域,四川的金沙江河谷及岷江上游;广西的南流江一带,江西的兴国县和鄱阳湖区等尤为严重和典型。 我国南方山地荒漠化的主要原因是人类不合理的经济活动所引起,而不利的气候和特殊的地质、地貌条件促使其不断加剧和扩展之势。 ; A big attention has been paid to the desertization Process and its serious results in the arid and semi-arid areas of northern and north weste-rnChina. But a so-called mountain desertification is widely developing and raPidly enlarging in many mountainous and hilly regions of southern China, It is also not to be ignored, because it has deteriorated the local environment, caused the disturbance of ecological balance, retrogression of land, reduction of Production and the vicious circle in development.The terminology of "mountain Desertification" means that in mountain areas and hilly countries of southern China, where the climate is subtrop ical and tropical with abundant Precipitaton and high temperature throughout the year, the deser-like landscape with bare slopes on the mountains and gobi-like landform with expansion of stony and rugged surface in the valleys gradually formed by growing human activities on the base of sPecial conditions of geology, geomorPhology, and meteohydrology.The mountain desertification Process in southern China, just as the desertization in the north, resides its meaning in the alternative interactions amongst natural environment, biology and human society and is originated in the Processes of the interrelation among above mentioned aspects.Based on the preliminary investigation and data, the area of mountain desertification in southern China is about 1500-200 million mu and is still increasing year after year.This phenomenon distributes mainly in Yunnan, Sichuan, Guizhou, Jiangxi and Guangxi Provinces. It can be found in Guangdong, Hunan, Hubei, zhejiang,Fujian and xizhang Provinces, too. The most typical areas of it are as follows: The xiaojiang Basin of yunan, the valley of Jingsha River and uPPer reach of Min River in Sichuan, Nanliu River basin of Guangxi and the Xingguo County of Jiangxi.The measures to be taken for controlling and Preventing the mountain desertification to obtain social, economic and ecological efficiency must be comprehensive or complex system; combination of engineering system, biological system, maintenance system and social management system. To dominate the Population and decrease the negative impact of human activities in mountain regions will be the most important mearure for rehabilitating the desertification land and re-establishing the now ecosystem in the deteriorat e d Places.
Keyword荒漠化 丘陵区 沙漠化 小江流域 山地 自然环境 金沙江 南流江 生态平衡 谷地
Document Type期刊论文
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
李椷,罗德富. 我国南方山地和丘陵的荒漠化问题[J]. 中国沙漠,1988,8(4):4-13.
APA 李椷,&罗德富.(1988).我国南方山地和丘陵的荒漠化问题.中国沙漠,8(4),4-13.
MLA 李椷,et al."我国南方山地和丘陵的荒漠化问题".中国沙漠 8.4(1988):4-13.
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