干旱区生态环境知识资源中心(Arid): 黑河中游荒漠区植物生长与水分变化关系分析

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	黑河中游荒漠区植物生长与水分变化关系分析
其他题名	The correlation analysis between plant growth and changes of water in desert areas in Heihe middle reaches
	牛赟 1; 张永喆 2; 张虎 1; 刘建海 1; 赵国生 1
来源期刊	中南林业科技大学学报
ISSN	1673-923X
出版年	2016
卷号	36 期号:8 页码:96-103
中文摘要	土地荒漠化是当前世界十大环境问题之一,对人类的生存和发展构成了严重威胁。通过黑河流域中游荒漠区建立的荒漠化综合防治试验站对土壤各层含水率、植被生物量、盖度、地下水埋深、降水量等9 a (2006-2014年)长期定位监测,采用特征参数算法、相关和多元回归分析方法,研究了植被生长和水分的年内、年际变化特征及相关回归模型。结果表明:(1)土壤平均质量含水率、植被平均生物量、平均盖度、地下水埋深、降水量年均分别为2.38%、136.13 g/m~2、11.01%、271.63 cm、141.56 mm;年际变化幅度从大到小依次为土壤质量含水率>植被平均盖度>降水量>植被平均生物量>地下水埋深,其中土壤质量含水率和植被平均盖度呈波动性增加趋势,植被平均生物量、地下水埋深、降水量呈波动性略有减小趋势。(2)在一年的植物生长季的3 ?11月份期间,降水量、地下水埋深变化步调基本一致,各层土壤含水率变化步调基本一致。(3)植被平均盖度与土壤各层质量含水率中度正相关,与降水量低度相关,与其它因子关系极弱。(4)植被平均盖度模型预测准确率可达79.2%,误差平均为0.381,解释变差可达89.9%。本研究可为荒漠化防治中的水资源管理以及退耕还林、天然林保护、黑河流域综合治理等工程对水资源影响的评估等提供科技支撑和参考数据。
英文摘要	Land desertification is one of the world’ s top ten environmental problems, and constitutes the serious threat for human survival and development. In order to explore response natural desert plant growth to changes of water in desertification control, the test station of desertification control in Hongshawo had been established in in Heihe middle reaches in 2006 by the academy of water resource conservation forests of Qilian mountains in Gansu province, and had been long-term location and multi-factor monitoring. At present, the data about meteorological, hydrological, soil, vegetation which related desertification and sandstorm occurrence and development had been obtained for 9 consecutive years. In this paper, extracted data about soil moisture content of each layer, vegetation biomass, coverage, groundwater depth and rainfall, which had come from test station of desertification control in Hongshawo had been set up in desert zones in Heihe middle reaches, and the algorithm of characteristic parameters, correlation and multiple regression analysis method had been used, and response characteristics of natural desert plant growth and changes of water interannual and annual variance had been studied. Results show that: (1) The average moisture content rate of soil, the average vegetation biomass, coverage, groundwater depth and precipitation respectively was 2.38%.136.13 g/m~2, 11.01%, 271.63 cm, 141.56 mm. Interannual variation order from large to small was that moisture content rate of soil > coverage > precipitation > biomass > groundwater depth. The average moisture content of soil and average vegetation coverage showed a trend of volatility increase, but the average vegetation biomass, groundwater depth and precipitation showed a trend of slightly volatility decrease in the research area. (2) In the growing season from march to November, the annual variance pace of each layer soil moisture content were resemblance, and the changes of average vegetation coverage and biomass were non-significant.(3) Average vegetation coverage and soil moisture content of each layer were mezzo positive correlation, but related to precipitation was low, very weak relationship with other factors. (4) The regression model of each layer soil moisture content and precipitation had been passed by R2 test, F test and t test, and and it was applicable and expandable. Through model analysis, the five factors of soil quality of moisture content in each layer and rainfall could explain 89.9% variation of the average vegetation coverage. This study could provide technology support and reference data for water resource management and evaluation of influence of water resource by engineering of returning farmland to forest, natural forest protection, comprehensive treatment of Heihe basin in desertification control.
中文关键词	生物量 ; 盖度 ; 土壤质量含水率 ; 荒漠化防治 ; 黑河中游
英文关键词	biomass coverage moisture content of soil desertification control Heihe river middle reaches
语种	中文
国家	中国
收录类别	CSCD
WOS类目	FORESTRY
WOS研究方向	Forestry
CSCD记录号	CSCD:5798108
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/235558
作者单位	1.甘肃张掖生态科学研究院甘肃省祁连山生态科技创新服务平台, 张掖, 甘肃 734000, 中国; 2.华南理工大学, 广州, 广东 510641, 中国
推荐引用方式 GB/T 7714	牛赟,张永喆,张虎,等. 黑河中游荒漠区植物生长与水分变化关系分析[J],2016,36(8):96-103.
APA	牛赟,张永喆,张虎,刘建海,&赵国生.(2016).黑河中游荒漠区植物生长与水分变化关系分析.中南林业科技大学学报,36(8),96-103.
MLA	牛赟,et al."黑河中游荒漠区植物生长与水分变化关系分析".中南林业科技大学学报 36.8(2016):96-103.