元谋干热河谷区森林消长与生态环境变化研究 | |
张建平; 王道杰![]() | |
刊名 | 中国沙漠
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2001 | |
卷号 | 21期号:1页码:79-83 |
关键词 | 元谋干热河谷 森林消长 生态环境变化 森林植被恢复 |
ISSN号 | 1000-694X |
其他题名 | Studies on the Increase and Decrease of Forest Area and Ecoenvironmental Change in Yuanmou Dry-hot Valley |
通讯作者 | 张建平 |
合作状况 | 其它 |
中文摘要 | 在元谋干热河谷区,森林覆盖率1950年为12.8%、1973年为6.3%、1985年降至5.2%、1993年升至5.8%。而人类的社会、经济活动,是导致森林面积消长的主要原因。森林面积增减,是生态环境向良性或恶性方向转变的关键所在,针对森林减少和生态环境恶化的原因提出了恢复森林植被改善生态环境的对策。 |
英文摘要 | In Yuanmou dry-hot valley, the forest cover rate is respectively 12.8% in 1950 (In the early 1950s, above 2 000 m of the altitude in Liangshan area, there dist ributed Pinus yunnanensis forest, the forest cover rate reached 60 %~ 70 %. Between 1500 ~ 2000 m, still distributed tract Pinus yunnanensis fo rest.), 6.3 % in 1973 (Because of the serious destruction during the periods of the “Great Leap” and “Cultural Revolution” , the forest area reduced greatly), 5.2 % in 1985 (Af ter 1978 , because of the need of economic development, the forest was felled again) and 5.8 % in 1993 (Af ter 1985 , energetically plant trees, the forest cover rate increased slightly). The human socio-economic activity (felled t rees and plant trees) is the main cause of increase and decrease of forest area. The increase and the decrease of the forest area is the key of the eco-environment changes to good or bad co ndition (The decrease of forest area caused eco-environment worse. The droug ht and flood are gradually serious and the land desertification developed).Against forest decrease and eco-environment deterio ration some countermeasures have been proposed to recover fo rest vegetation and improve eco-enviro nment, i .e, strengthen young trees management and tending, close hills to facilitate afforestation and change slope cultivated land to afforestation; formulate favourable policy; rationally dispose tree species;usew ater-saving technique in afforestation |
学科主题 | S718 |
收录类别 | CSCD ; 北大中文核心 |
语种 | 中文 |
CSCD记录号 | CSCD:849734 |
公开日期 | 2010-07-12 |
内容类型 | 期刊论文 |
源URL | [http://ir.imde.ac.cn/handle/131551/511] ![]() |
专题 | 成都山地灾害与环境研究所_成都山地所知识仓储(2009年以前) 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
作者单位 | 中国科学院、水利部成都山地灾害与环境研究所 |
推荐引用方式 GB/T 7714 | 张建平,王道杰,杨忠,等. 元谋干热河谷区森林消长与生态环境变化研究[J]. 中国沙漠,2001,21(1):79-83. |
APA | 张建平,王道杰,杨忠,&李勇.(2001).元谋干热河谷区森林消长与生态环境变化研究.中国沙漠,21(1),79-83. |
MLA | 张建平,et al."元谋干热河谷区森林消长与生态环境变化研究".中国沙漠 21.1(2001):79-83. |
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