干旱区生态环境知识资源中心(Arid): 新疆策勒绿洲荒漠过渡带自然状态下植物恢复与生境

Arid

	新疆策勒绿洲荒漠过渡带自然状态下植物恢复与生境
其他题名	Natural vegetation recovery and habitat in oasis-desert ecotone in Qira, Xinjiang
	熊黑钢1 ; 塔西甫拉提·特依拜 2; 龙桃 2
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2010
卷号	24 期号:10 页码:138-143
中文摘要	在极端干旱区的策勒县绿洲荒漠过渡带,选择植被曾被砍伐殆尽的沙丘不同部位,对其微气候,土壤,植物,微生物,水分等进行观测分析.研究表明:微域地形对改变环境生态因子分布所导致的生态效果十分明显.沙丘间的微生境的差异巨大.在高度仅3~8m的沙丘上部和下部,微生物的数量和土壤含水量可相差1~2个数量级;而中午时段地面温度,气温,空气湿度的差值分别是10℃,6℃左右和10~20%.沙丘下部易于积水,温度较低,地表最高温度小于25℃;空气相对湿度大,5cm处变化在30-33%,50cm在19-22%之间;20-40cm的土壤含水量达10.5%,可基本满足植物生长的需要.因此,在沙丘间的凹地,水-热配置较适宜,植物着床和恢复最快,盖度大,微生物数量最多.沙丘的上部环境条件较差,植被恢复慢.中部介于两者之间.植被恢复过程能否顺利进行,早期受物理环境支配明显强于群落的生物环境因素.当植被盖度增加到一定程度后,植物反作用于生境,加剧了不同部位局地微生境的差异性
英文摘要	In extreme arid region oasis-desert ecotone of Qira,we chose different parts of sand dune to observe and analyze the microclimate, soil, vegetation, microorganisms and soil moisture. The results showed that the micro-terrain could obviously change the ecology effect by varying environment and the distribution of ecological factors. There were big differences of micro-habitats among dunes. Microorganisms number and soil moisture content between top and bottom of the 3 to 8 meters high dune could have 1 to 2 quantity difference level. In the midnoon, differences of ground temperature, air temperature and humidity were separately 10℃,6℃ and 10% to 20%.The bottom dune was more likely to assemble water, and had low temperature. The highest groud temperature was less than 25℃.But its air humidity was high. The humidity at 5cm hight was 30% to 33%, and 19% to 22% at 50cm hight. The soil moisture in 20cm ~ 40cm layer was 10.5%, which could basicly satisfy plants growth. Therefore, the distribution of water and heat was suitable in low dune place. Plants in this place had the quikest plantation recovery speed, large coverage and maximum microorganisms. The top dune had bad environment,so the plantation speed was slow. The condition of middle part dune was between the two dune parts above. In early stage, nature environment was more powerful than community organism factors in vegetation recovery process. When plants coverage increased, plants acted back on habitat, and then intensified the micro-habitats differences among different dune parts
中文关键词	绿洲荒漠过渡带 ; 植被恢复 ; 极端干旱区
英文关键词	oasis-desert ecotone vegetation recovery extreme arid region
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:3996327
来源机构	新疆大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/225176
作者单位	1.北京联合大学应用文理学院, 北京 100083, 中国; 2.新疆大学资源与环境科学学院, 乌鲁木齐, 新疆 830046, 中国
推荐引用方式 GB/T 7714	熊黑钢,塔西甫拉提·特依拜,龙桃. 新疆策勒绿洲荒漠过渡带自然状态下植物恢复与生境[J]. 新疆大学,2010,24(10):138-143.
APA	熊黑钢,塔西甫拉提·特依拜,&龙桃.(2010).新疆策勒绿洲荒漠过渡带自然状态下植物恢复与生境.干旱区资源与环境,24(10),138-143.
MLA	熊黑钢,et al."新疆策勒绿洲荒漠过渡带自然状态下植物恢复与生境".干旱区资源与环境 24.10(2010):138-143.