PRESENT STATUS AND CAUSE OF LAND DESERTIFICATION IN THE YARLUNG ZANGBO RIVER BASIN

董玉祥; 李森; 董光荣

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PRESENT STATUS AND CAUSE OF LAND DESERTIFICATION IN THE YARLUNG ZANGBO RIVER BASIN

董玉祥, 李森, 董光荣

文章导航 > Chinese Geographical Science > 1999 > 9(3): 228-235

董玉祥, 李森, 董光荣. PRESENT STATUS AND CAUSE OF LAND DESERTIFICATION IN THE YARLUNG ZANGBO RIVER BASIN[J]. 中国地理科学, 1999, 9(3): 228-235.

引用本文:

董玉祥, 李森, 董光荣. PRESENT STATUS AND CAUSE OF LAND DESERTIFICATION IN THE YARLUNG ZANGBO RIVER BASIN[J]. 中国地理科学, 1999, 9(3): 228-235.

Dong Yuxiang, Li Sen, Dong Guangrong. PRESENT STATUS AND CAUSE OF LAND DESERTIFICATION IN THE YARLUNG ZANGBO RIVER BASIN[J]. Chinese Geographical Science, 1999, 9(3): 228-235.

Citation:

Dong Yuxiang, Li Sen, Dong Guangrong. PRESENT STATUS AND CAUSE OF LAND DESERTIFICATION IN THE YARLUNG ZANGBO RIVER BASIN[J]. Chinese Geographical Science, 1999, 9(3): 228-235.

PRESENT STATUS AND CAUSE OF LAND DESERTIFICATION IN THE YARLUNG ZANGBO RIVER BASIN

1.
Department of Geography, Zhongshan University, Guangzhou 510275, P. R. China;
2.
Institute of Desert Research, the Chinese Academy of Sciences, Lanzhou 730000, P. R. China

基金项目: the National Natural Science Foundation of China(No.49471009);the Foundation of the State Key Laboratory of Loess and Quaternary Geology, the Chinese Academy of Sciences(No.9401)

PRESENT STATUS AND CAUSE OF LAND DESERTIFICATION IN THE YARLUNG ZANGBO RIVER BASIN

1.
Department of Geography, Zhongshan University, Guangzhou 510275, P. R. China;
2.
Institute of Desert Research, the Chinese Academy of Sciences, Lanzhou 730000, P. R. China

摘要: The Yarlung Zangbo River basin is a spacial zone in the south of Xizang, the types, distribution and causes of desertified lands have special features. The type, area, distribution and damage of desertification land in the Yarlung Zangbo River basin are firstly analysed in detail by using latest investigation information. According to the classification criteria of desertified land types and grades, the desertified land in the Yarlung Zangbo River basin can be divided into three grades and five types: fixed sand (dune) land, semi bare sand and gravel land, semi-fixed sand (dune) land, base sand and gravel land, and shifting sand (dune) land. The desertified lands in the basin are mainly distributed in the wide valley floor and tributary junction area. The main factors affecting desertification are fragile eco environment, climate warming and drying and over exploitation of land resources. The man made factors leading to desertification in the Yarlung Zangbo River basin are over cutting and over grazing, dominated by over-grazing.
- Yarlung Zangbo River basin /
- land desertification /
- desertification cause /
- man-made factor
Abstract: The Yarlung Zangbo River basin is a spacial zone in the south of Xizang, the types, distribution and causes of desertified lands have special features. The type, area, distribution and damage of desertification land in the Yarlung Zangbo River basin are firstly analysed in detail by using latest investigation information. According to the classification criteria of desertified land types and grades, the desertified land in the Yarlung Zangbo River basin can be divided into three grades and five types: fixed sand (dune) land, semi bare sand and gravel land, semi-fixed sand (dune) land, base sand and gravel land, and shifting sand (dune) land. The desertified lands in the basin are mainly distributed in the wide valley floor and tributary junction area. The main factors affecting desertification are fragile eco environment, climate warming and drying and over exploitation of land resources. The man made factors leading to desertification in the Yarlung Zangbo River basin are over cutting and over grazing, dominated by over-grazing.
- Yarlung Zangbo River basin /
- land desertification /
- desertification cause /
- man-made factor

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PRESENT STATUS AND CAUSE OF LAND DESERTIFICATION IN THE YARLUNG ZANGBO RIVER BASIN

1. Department of Geography, Zhongshan University, Guangzhou 510275, P. R. China;

2. Institute of Desert Research, the Chinese Academy of Sciences, Lanzhou 730000, P. R. China

基金项目: the National Natural Science Foundation of China(No.49471009);the Foundation of the State Key Laboratory of Loess and Quaternary Geology, the Chinese Academy of Sciences(No.9401)

收稿日期: 1999-01-06
刊出日期: 1999-09-20

关键词:

Yarlung Zangbo River basin /

land desertification /

desertification cause /

man-made factor

摘要: The Yarlung Zangbo River basin is a spacial zone in the south of Xizang, the types, distribution and causes of desertified lands have special features. The type, area, distribution and damage of desertification land in the Yarlung Zangbo River basin are firstly analysed in detail by using latest investigation information. According to the classification criteria of desertified land types and grades, the desertified land in the Yarlung Zangbo River basin can be divided into three grades and five types: fixed sand (dune) land, semi bare sand and gravel land, semi-fixed sand (dune) land, base sand and gravel land, and shifting sand (dune) land. The desertified lands in the basin are mainly distributed in the wide valley floor and tributary junction area. The main factors affecting desertification are fragile eco environment, climate warming and drying and over exploitation of land resources. The man made factors leading to desertification in the Yarlung Zangbo River basin are over cutting and over grazing, dominated by over-grazing.

English Abstract

董玉祥, 李森, 董光荣. PRESENT STATUS AND CAUSE OF LAND DESERTIFICATION IN THE YARLUNG ZANGBO RIVER BASIN[J]. 中国地理科学, 1999, 9(3): 228-235.

引用本文:

董玉祥, 李森, 董光荣. PRESENT STATUS AND CAUSE OF LAND DESERTIFICATION IN THE YARLUNG ZANGBO RIVER BASIN[J]. 中国地理科学, 1999, 9(3): 228-235.

Dong Yuxiang, Li Sen, Dong Guangrong. PRESENT STATUS AND CAUSE OF LAND DESERTIFICATION IN THE YARLUNG ZANGBO RIVER BASIN[J]. Chinese Geographical Science, 1999, 9(3): 228-235.

Citation:

Dong Yuxiang, Li Sen, Dong Guangrong. PRESENT STATUS AND CAUSE OF LAND DESERTIFICATION IN THE YARLUNG ZANGBO RIVER BASIN[J]. Chinese Geographical Science, 1999, 9(3): 228-235.

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PRESENT STATUS AND CAUSE OF LAND DESERTIFICATION IN THE YARLUNG ZANGBO RIVER BASIN

PRESENT STATUS AND CAUSE OF LAND DESERTIFICATION IN THE YARLUNG ZANGBO RIVER BASIN

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PRESENT STATUS AND CAUSE OF LAND DESERTIFICATION IN THE YARLUNG ZANGBO RIVER BASIN

1. Department of Geography, Zhongshan University, Guangzhou 510275, P. R. China; 2. Institute of Desert Research, the Chinese Academy of Sciences, Lanzhou 730000, P. R. China

English Abstract

PRESENT STATUS AND CAUSE OF LAND DESERTIFICATION IN THE YARLUNG ZANGBO RIVER BASIN

1. Department of Geography, Zhongshan University, Guangzhou 510275, P. R. China; 2. Institute of Desert Research, the Chinese Academy of Sciences, Lanzhou 730000, P. R. China

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目录

1. Department of Geography, Zhongshan University, Guangzhou 510275, P. R. China;

2. Institute of Desert Research, the Chinese Academy of Sciences, Lanzhou 730000, P. R. China

1. Department of Geography, Zhongshan University, Guangzhou 510275, P. R. China;

2. Institute of Desert Research, the Chinese Academy of Sciences, Lanzhou 730000, P. R. China