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攀枝花地区干热河谷干季末期典型植被的土壤含水量研究
引用本文:邓建梅,尹海英,余传波. 攀枝花地区干热河谷干季末期典型植被的土壤含水量研究[J]. 安徽农业科学, 2011, 39(34): 21013+21159-21013,21159
作者姓名:邓建梅  尹海英  余传波
作者单位:攀枝花学院,攀枝花市干热河谷特色生物资源工程技术中心,四川攀枝花617000
摘    要:[目的]为研究攀枝花地区干热河谷干季末期植被覆盖对土壤水分的影响。[方法]采用重量法,测定典型植被类型的土壤含水量。[结果]含水量高低顺序依次为林地〉稀树〉灌丛〉草地〉裸地。在10~40 cm土层,含水量变化不大,但总体呈上升趋势,约40cm处存在突变点。50 cm处林地、稀树、灌丛、草地、裸地含水量分别达到9.50%、6.64%、4.89%、3.95%、1.23%。[结论]适当加深植树深度有利于树木存活,草-灌或草-乔的植被恢复方式较好。

关 键 词:土壤含水量  植被类型  干热河谷

Determination of Moisture of Soils Covered by Typical Vegetation in Hot-Dry Valley in Panzhihua at the End of Dry Season
Affiliation:DENG Jian-mei et al(Dry-hot Valley Characteristic Bio-Resources Engineering Center of Panzhihua City,Panzhihua University,Panzhihua,Sichuan 617000)
Abstract:[Objective] The research aimed to study the effects of vegetative coverage on the soil moisture in dry-hot valley in Panzhihua at the end of dry season.[Method] The moisture of soils covered by typical vegetation was determined by gravimetric method.[Result] The order of soil moisture was woods> sparse trees> shrubs> grass> bare land.Moisture of soil increased slightly with the depth in the range of 10-40 cm.There were the mutation points at about 40 cm.At 50 cm,soil moisture covered by woods,sparse trees,shrubs,grass and bare land reached 9.50%,6.64%,4.89%,3.95% and 1.23%.[Conclusion] Increasing appropriately in planting depth would enhance the survival of the trees.Grass-shrubs or grass-trees was a good model to recover vegetative coverage.
Keywords:Soil moisture  Vegetation types  Dry-hot valley
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