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。
[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.
出处
《安徽农业科学》
CAS
北大核心
2011年第34期21013-21013,21159,共2页
Journal of Anhui Agricultural Sciences
关键词
土壤含水量
植被类型
干热河谷
Soil moisture
Vegetation types
Dry-hot valley
