Sensitivity of rocky desertification and its spatial distribution in southwestern China

Abstract

Abstract: Rocky desertification is one of the most serious eco-environmental problems.It is necessary to identify the most sensitive region and to offer scientific foundation to tackle rocky desertification.Based on the studies on rocky desertification and correlative eco-environmental problems,four leading factors,namely,lithology,precipitation,slope and vegetation were identified to be accountable for rocky desertification,with their influence on sensitivity classified.The integrated assessment of rocky desertification sensitivity in Southwestern China was proposed which could reflect the fact on the whole.The central,south and west of Guizhou,west and east of Guangxi,and east of Yunnan are the most sensitive areas to rocky desertification,while it is relatively less harmful in Sichuan and Chongqing.

Key words: Eutrophication, Planted float system, N and P, Nitrification and denitrification, Removal, N₂O

CLC Number:

P931.5

XIAO Rongbo, OUYANG Zhiyun, WANG Xiaoke, ZHAO Tongqian. Sensitivity of rocky desertification and its spatial distribution in southwestern China[J]. cje, 2005, (5): 551-554.

References

[1] 王效科,欧阳志云,肖寒,等.2000.中国水土流失敏感性分布规律及其区划研究[J].生态学报,21(1):14～19.
[2] 王德炉,朱守谦,黄宝龙.2003.贵州喀斯特区石漠化过程中植被特征的变化[J].南京林业大学学报(自然科学版),27(3):26～30.
[3] 刘康,欧阳志云,王效科,等.2003.甘肃省生态环境敏感性评价及其空间分布[J].生态学报,23(12):2711～2718.
[4] 孙承兴,王世杰,周德全,等.2002.碳酸盐岩差异性风化成土特征及其对石漠化形成的影响[J].矿物学报,22(4):308～314.
[5] 孙艳丽,况明生,张远嘱,等.2003.中国南方岩溶地区脆弱的生态环境及石漠化过程[J].贵州师范大学学报(自然科学版),21(2):80～83.
[6] 张殿发,王世杰,周德全,等.2002.土地石漠化的生态地质环境背景及其驱动机制--以贵州省喀斯特山区为例[J].农村生态环境,18(1):6～10.
[7] 张殿发,王世杰,周德全.2001.贵州省喀斯特地区土地石漠化的内动力作用机制[J].水土保持通报,21(4):1～5.
[8] 李瑞玲,王世杰,周德全,等.2003.贵州岩溶地区岩性与土地石漠化的相关分析[J].地理学报,58(2):314～320.
[9] 苏维词,朱文孝.2000.贵州喀斯特山区生态环境脆弱性分析[J].山地学报,18(5):429～434.
[10] 苏维词.2002.中国西南岩溶山区石漠化治理的优化模式及对策[J].水土保持学报,16(5):24～27,110.
[11] 周忠发,黄路迦.2003.喀斯特地区石漠化与地层岩性关系分析--以贵州高原清镇市为例[J].水土保持通报,23(1):19～22.
[12] 周德全,王世杰,张殿发.2003.关于喀斯特石漠化研究问题的探讨[J].矿物岩石地球化学通报,22(2):127～132.
[13] 欧阳志云,王效科,苗鸿.2000.中国生态环境敏感性及其区域差异规律研究[J].生态学报,20(1):9～12.
[14] 郑永春,王世杰.2002.贵州山区石灰土侵蚀及石漠化的地质原因分析[J].长江流域资源与环境,11(5):461～465.
[15] 夏卫生,雷延武,潘英华,等.2001.南方坡地石漠化现状及防治的初步研究[J].水土保持通报,21(4):47～49.
[16] 袁春,周常萍,童立强,等.2003.贵州土地石漠化的形成原因及其治理对策[J].现代地质,17(2):181～185.
[17] 喻甦.2003.中国石漠化分布现状与特点[J].中南林业调查规划,22(2):53～55.
[18] 蓝安军,熊康宁,安裕伦.2001.喀斯特石漠化的驱动因子分析--以贵州省为例[J].水土保持通报,21(6):19～23.
[19] 路洪海,冯绍国.2002.贵州喀斯特地区石漠化成因分析[J].四川师范学院学报(自然科学版),23(2):189～191,212.