干旱区生态环境知识资源中心(Arid): 甘肃省荒漠化宏观监测研究

Arid

	甘肃省荒漠化宏观监测研究
其他题名	Research on Macroscopic Monitoring of Desertification in Gansu
	马立鹏; 李晓兵
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2002
卷号	22 期号:2 页码:122-128
中文摘要	甘肃省荒漠化宏观监测研究是全国荒漠化监测的组成部分。文章依据联合国《荒漠化防治公约》中有关规定，结合《全国荒漠化监测技术方案》，首次划定了荒漠化气候类型区，确定了甘肃省荒漠化潜在发生范围；应用先进的3S技术与抽样理论相结合的调查方法，对荒漠化本底现状与演变动态进行了全面评价；首次查清了全省荒漠化（风蚀、水蚀、盐渍化）的有关翔实数据并进行了程度分级。结果表明：①甘肃省荒漠化潜在发生范围内2300万hm~2，占省实际管辖面积的50．57％，荒漠化土地面积17784918．25hm~2，占荒漠化潜在发生范围的77．33％，占甘肃省实际管辖面积的43．73％。②荒漠化土地按程度划分：轻度荒漠化面积177482．86hm~2；中度荒漠化面积5464505．98hm~2；重度荒漠化面积5862203．28hm~2；极重度荒漠化土地面积4680726．13hm~2。③荒漠化土地面积按气候区分：干旱区9919533．90hm~2；半干旱区6320399．25hm~2；亚湿润干旱区1544985．10hm~2。④荒漠化土地按类型划分：风蚀荒漠化14290986．25hm~2；水蚀荒漠化2806446．45hm~2；盐渍荒漠化687485．15hm~2。⑤甘肃省沙化土地总体呈蔓延趋势。本则期沙化土地总面积为1113．4万hm~2，占监测总面积2200544．0km~2的55．52％，较1994年增加了189491．32hm~2，每年增加37898．26hm~2，年递增率为0．34％。
英文摘要	The research on macroscopic monitoring of desertification in Gansu is one part of Desertification Monitoring of all the country. According to some concerned prescription in 《Pact of Desertification Preven-tion》 of U. N. , combining with 《Precept of Desertification Monitoring Technology of China》, using the in-vestigation that combined GIS/RS/GPSC3S) with spot check, the paper first demarcated the types of Gan-su desertification climate zone and confirmed the range of potential desertification; made a integrated as-sessment to the statue and evolvement dynamic of Gansu desertification, and a thorough investigation of some concerned data and classified them. The range of potential desertification is 23 000 000 hm~2 , about 50. 57 per cent of actual area of Gansu, the area of desertified land is 17 784 918. 25 hm~2, about 77. 33 per cent of the range of potential desertifica-tion and 43. 73 per cent of actual area of Gansu. According to the degree of desertified land area the area of light desertification is 1 777 482. 86 hm~2, intermediate 5 464 505. 98 hm~2, serious 5 862 203. 28 hm~2, very seri&us 4 680 726. 13 hm~2. According to climate, of desertified land area the area of arid zone is 9 919 533. 90 hm~2, semi-arid 6 320 399. 25 hm% sub-humid arid 1 544 985. 10 hm~2. According to the type of desertified land area wind erosion is 14 290 986. 25 hm~2, water erosion 2 806 446. 45 hm~2, salinity 687 485. 15 hm~2. The desert land presents a tendency of spread in the overall statue. In the period of this monitoring, total area of desert land is 11 134 000 hm~2(55. 52 per cent of the total monitored area of 20 055 000 hm~2) that increased 1 894 491. 32 hm~2 from 1994, every year increased 37 898. 26 hm~2, increasing ratio of every year is 0. 34 per cent.
中文关键词	甘肃 ; 荒漠化 ; 宏观监测 ; 研究 ; 土地利用
英文关键词	desertification macroscopic monitoring research
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURAL ECONOMICS POLICY
WOS研究方向	Agriculture
CSCD记录号	CSCD:1118790
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/203646
作者单位	甘肃省荒漠化监测中心甘肃省林业勘察设计研究院, 兰州, 甘肃 730020, 中国
推荐引用方式 GB/T 7714	马立鹏,李晓兵. 甘肃省荒漠化宏观监测研究[J],2002,22(2):122-128.
APA	马立鹏,&李晓兵.(2002).甘肃省荒漠化宏观监测研究.中国沙漠,22(2),122-128.
MLA	马立鹏,et al."甘肃省荒漠化宏观监测研究".中国沙漠 22.2(2002):122-128.