|Table of Contents|

Current Situation and Distribution Characteristics of Farmland Soil Nutrients in ‘One River and Two River Basins’ of Tibet

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2023年02
Page:
72-79
Research Field:
Publishing date:

Info

Title:
Current Situation and Distribution Characteristics of Farmland Soil Nutrients in ‘One River and Two River Basins’ of Tibet
Author(s):
YANG Hong; BAI Youzhi; GAO Wenyu; LYU Qingxin; GU Qi; ZHANG Hongfeng
(Resources and Environment College，Tibet Agricultural and Animal Husbandry University，Linzhi，Tibet 860000)
Keywords:
‘One River and Two River Basins’; farmland soil; soil nutrient; soil organic matter; total nitrogen
PACS:
-
DOI:
10.11937/bfyy.20221405
Abstract:
With the farmland soil in the ‘One River and Two River Basins’ of Tibet as test material，the distribution characteristics of farmland soil nutrient content in the main agricultural areas of the ‘One River and Two River Basins’ of Tibet were studied by using the conventional quantitative test and analysis method，in order to provide reference for improving the farmland soil fertility in the ‘One River and Two Rivers Basin’ of Tibet and enhancing the sustainability of the soil.The results showed that,1）in terms of the distribution of soil nutrients in the vertical profile，the contents of soil organic matter，total nitrogen，total phosphorus and total potassium in the farmland of ‘One River and Two Rivers Basin’ in Tibet were 0-20 cm>20-40 cm.2）In terms of the spatial distribution of soil nutrients in ‘One River and Two River Basins’，the content of soil organic matter in Langjiaxian county (LKZ) was the highest，up to （61.59±8.29）g?kg-1，and Lhasa (LS) was the lowest，with a value of （26.19±4.09）g?kg-1.The total nitrogen content of soil was also the highest in LKZ (1.57±0.37 g?kg-1)，the lowest in Sangri county (SR)，and LKZ was 112.16% higher than SR.The total phosphorus content in Nimu county (NM) was the highest，with a value of (11.58±3.34)g?kg-1，while that in Zhacao county (ZN) was the lowest，with a value of (4.39±1.41)g?kg-1.The content of total potassium in Gongga county (GG) was the highest，with a value of (10.01±2.49)g?kg-1，and Lang county (LX) was the lowest.GG was 105.12% higher than LX.The significance analysis showed that the content of soil organic matter in LKZ was significantly higher (P<0.05) than that in other places except MZGK，the difference of soil total nitrogen content between LKZ and Bailang county (BL) and Dazi county (DZ)，GG and MZGK was significant (P<0.05)，and the difference with other land was very significant (P<0.01)，the content of total phosphorus in NM and Qusong county (QS) was significantly higher than that in other lands (P<0.05).Except that there was no significant difference between GG，Qushui county (QSH) and QS and that of Jiangzi county (JZ)，Zedang (ZD)，BL and Zabao county (ZN) (P>0.05)，the difference between GG，Qushui county (QSH) and QS and other places was significant (P<0.05).To sum up，the soil fertility in Tibet′s ‘One River and Two River Basins’ lane system was low,in the future,the return of soil nutrients should be strengthened.

References:

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Last Update: 2023-02-15