Differences in soil properties of dry evergreen and dry deciduous forests in the Sakaerat Environmental Research Station.
Differences in soil properties of dry evergreen and dry deciduous forests in the Sakaerat Environmental Research Station.
复制标题
萨卡拉环境研究站干燥常绿林和干燥落叶林土壤性质的差异。
DOI：
10.3759/tropics.8.61
复制
发表时间：
1998
期刊：
影响因子：
0.7
通讯作者：
Kanzaki Mamoru
中科院分区：
文献类型：
--
作者：
Sakurai Katsutoshi;Tanaka Shin;Ishizuka Satoshi;Kanzaki Mamoru
为了阐明泰国东北部Sakaerat环境研究站（Sers）的土壤-植物关系，在两种主要类型的森林中进行了土壤调查，干万年青林（DEF）和干龙脑香林（DDD.此外，还选择了1967年以来进行防火处理的DDF（FPDDD）作为研究地块，以了解旱季土地覆盖保护对土壤和植被的影响。作为土壤分析的结果，如土壤硬度，土壤形态，物理，化学和矿物学性质，目前的植被在Sers似乎受到很大的影响的强度的影响（燃料）给森林。如果在DDR中不尝试防火，则由于表层土壤上的有机物质的损失而容易引起土壤侵蚀。土壤性质如粘粒含量和相关性质（持水量、阳离子交换量、透水性和含水量）在土壤侵蚀后很容易和很快地变差。火烧迹地的各种土壤性质介于DDF和DEF之间，火烧影响越强，土壤侵蚀越严重。根据土壤性质，可以提出以下机制来解释目前的植被：一旦原始植被遭到破坏，DEF型森林在这种干燥和贫瘠的土壤条件下很难再生，因此，另一种植被，即，DDF，目前在泰国东北部的其他地方发现。目前在DDF中发现的极端干燥的土壤条件不是森林土壤的固有特性。它是由过去在那里的植被被移走造成的。防火DDF建议。
To clarify the soil-plant relationship in the Sakaerat Environmental Research Station (SERS), northeast Thailand, soil survey was conducted in the two major types of forest, i.e., dry evergreen forest (DEF) and dry dipterocarp forest (DDD. In addition, DDF with fire protection treatment since 1967 (FPDDD was also selected as a study plot to know the effect of protection of land cover during dry season on both soil and vegetation. As a result of the soil analysis, such as soil hardness, soil morphological, physical, chemical, and mineralogical properties, the current vegetation in the SERS seemed to be affected greatly by the strength of the impacts (fue) given to the forest. If no fire protection is attempted in the DDR soil erosion due to loss oforganic matter on the surface soil is easily brought about. Soil properties such as clay content and associated properties (water holding capacity, cation exchange capacity, water penneability, and moisture content) become worse easily and shortly, after soil erosion. The various soil properties of the FPDDF can be considered in the intermediate condition between those of DDF and DEF. The stronger the impact of fire is, the more the soil erosion occurs. On the basis of soil properties, the following mechanism can be suggested to explain the current vegetation; once the original vegetation was desroyed, DEF type forest could not regenerate easily in such a dry and infertile soil condition, and therefore, the other type of vegetation, i.e., DDF, is found elsewhere in northeast Thailand at present. The extremely dry soil condition currently found in the DDF is not intrinsic property of a forest soil. It is created by the removal of the vegetation which used to be there. The fire protected DDF suggests it.