干旱区生态环境知识资源中心(Arid): 不同人工措施对沙质荒漠生态恢复与重建初期效应的影响

Arid

	不同人工措施对沙质荒漠生态恢复与重建初期效应的影响
其他题名	Effect of different artificial measures on restoration and reconstruction of desert ecosystem at preliminary stage
	唐进年; 张盹明; 徐先英; 金红喜; 贺访印; 张晓琴; 朱淑娟
ISSN	1672-2175
出版年	2007
卷号	16 期号:6 页码:1748-1753
中文摘要	机械措施与生物措施相结合是流沙治理行之有效的重要途径和方法。通过对4种不同人工措施干预治理流动沙地后其生态恢复初期（前3年）植被、土壤理化性质和水分动态变化进行了观测研究,并以流沙区为对照进行了对比分析。结果表明：沙质荒漠生态系统恢复变化首先始于各种机械措施所建立的稳定地面的形成,为天然植物的迅速增殖和侵入、人工固沙植物的介入、枯枝落叶的储存及流沙成土过程提供了必要的环境条件。枯枝落叶层的形成又为土壤-植物系统物质交换建立了介面,促进了流沙的成土过程。不同人工措施治理区0～200cm土壤平均含水量与流沙区土壤含水量相比差异不显著,说明土壤水分仍能保持流动沙地原有的水分平衡状态。但随着天然植被的恢复与人工固沙林生长,其对土壤水分的影响深度由干预前的40cm加深至第三年的160cm。系统内植物恢复与流沙成土过程的前期效果表明,草沙障或土沙障＋固沙林措施优于塑料沙障＋人工沙蒿和封育治理措施,是流动沙地得以快速治理的有效方法。从植被群落结构的变化看,人工植被在建立后第三年其生态功能才开始初见成效。
英文摘要	The combination of mechanical and biological measures is the efficient and important way to stabilize shifting sands. Observation and research on dynamic changes of vegetation, physiochemical properties of soil and moisture on sandy land where 4 artificial measures were taken for controlling shifting sands were conducted during the preliminary stage （the first 3 years） of eco-restoration. Comparison analysis, in contrast to the shifting sandy land, was done. Result shows： firstly, the shifting sand was fixed by various mechanical measures, which offered an essential environment for the reproduction and colonization of natural vegetation, invasion of artificial vegetation, deposition of litter and soil formation from sand; secondly, the litter layers created interface for the substance exchange between soilegetation ecosystem and quickened the process of soil formation. Data analysis reveals there＇s no significant difference of soil moisture content within the depth of 0 to 200 cm between shifting sandy land and the artificially controlled areas. Soil moisture in the controlled areas kept the same dynamic equilibrium as that in original shifting sandy land. However, the impacts of these measures on soil moisture, in the third year of taking measures, extended to the depth of 160 cm from the original 40 cm. The preliminary results from vegetation restoration and soil formation show the measures of straw barrier or clay barrier＋sand-fixation plants are superior to that of plastic barrier ＋ artificial Artemisiaarenaria D.C. and enclosure for vegetation restoration, whereas the former is one of the best effective measures in controlling shifting sand. From the structural changes of vegetation community, it can be seen the ecological function will not take into effect until the third year after the artificial vegetation was built. The results obtained have instructive function for controlling shifting sandy land.
中文关键词	人工措施 ; 沙质荒漠生态系统 ; 植被恢复 ; 成土过程 ; 水分动态
英文关键词	artificial measures desert ecosystem vegetation restoration soil formation process moisture dynamics
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ECOLOGY
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:3114271
来源机构	甘肃省治沙研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/221312
作者单位	甘肃省治沙研究所, 甘肃省荒漠化防治重点实验室, 武威, 甘肃 733000, 中国
推荐引用方式 GB/T 7714	唐进年,张盹明,徐先英,等. 不同人工措施对沙质荒漠生态恢复与重建初期效应的影响[J]. 甘肃省治沙研究所,2007,16(6):1748-1753.
APA	唐进年.,张盹明.,徐先英.,金红喜.,贺访印.,...&朱淑娟.(2007).不同人工措施对沙质荒漠生态恢复与重建初期效应的影响.,16(6),1748-1753.
MLA	唐进年,et al."不同人工措施对沙质荒漠生态恢复与重建初期效应的影响".16.6(2007):1748-1753.