苏打碱化盐土不同植被类型的根层土壤盐碱化程度的研究——吉林省大安县草原盐碱土调查报告

STUDIES ON SALT AND ALKALI STATUS IN ROOTLAYER SOIL OF DIFFERENT PLANT COMMUNITIES IN SODA SOLONETZIC SOLONCHAK

摘要:

苏打碱化盐土在松辽平原分布广,面积大,仅吉林省西部有盐渍土草原139万公顷,其中部分酸化盐土失去利用价值,是目前发展畜牧业主要障碍。为筛选耐盐抗碱品优的野生牧草品种、建立人工草场,恢复和改良苏打碱化盐土草原植被,我们对大安县苏打碱化盐土地进行了调查。本文就植被群落中四个主要优势种九个类型的分布特点、土壤盐碱含量状况、两个野生牧草品种——星星草、野大麦正常生长的耐盐抗碱能力等进行了分析。

Abstract:

Soda solonetzic solonechak is of wide distributed and large in Song Line plain. There are 1.39 million hectares of solonezed soil only in the west of Jilin Province, a part of themhave lost values to be used. This is main obstacles to develop animal husbandry at present. The investigation on soda solonetzic solonchak, soda solonetzic solonechak was conducted at Daan county, in order to select wild herbage varieties with salt-endurance, alkali-endurance and good quality, and to be set up artificial grassland and torestore and improve plant communities in grassland. The research gave a analysis on the four mainly superior varieties, the distributive peculiarity of the nine types, the status for salt and alkali quantity in the soil, and sa lt-endurance and alkali-endurance of two wild herdage varieties [shortsubulatebaley (Hordtum brevisublatum (Trin.) Link.) and puccinellia te-nuiflora (Turez.) Seribn. et Merr.] under the normal growth.