西藏墨脱县耕地不同作物类型土壤理化性质及肥力评价

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关键词西藏墨脱；耕地；土壤肥力；土壤性质中图分类号S157 文献标识码A文章编号 0517-6611（2025）17-0149-05doi：10.3969/j. issn.0517-6611. 2025.17. 032开放科学（资源服务）标识码（OSID）：

Soil Physicochemical Properties andFertilityAssssment ofDiferent Crop Types on Cultivated Land in Motuo County，Xizang ZHANG Li-yong1²，LUOMei，PENG Hongetal（1.ScholofResourcesandEnvironment，XizangAgriculturalandAnimalHusbandryUniversty，Ningchi，Xizang860;2.otuoCoutyBureauofAgricultureandRuralDevelopment，Motuo，Xizang863y ingchi Agricultural and Animal Husbandry Technology Extension Center，Nyingchi，Xizang ）

AbstractThissdiedtvesigatetsilpsicohicalpropertsdertilitsatuundergrowingoditiosofito types in Motuo County. Soil samples were taken from 2O arable lands in Motuo County，and soil pH ，organic matter，alkali-hydrolyzable nitrogen，quick-actigsphosadquicactingasiwemeasdadad，dertoprovideietificasisforteat of arable land fertilization. The results showed that the average contents of soil pH ，organic matter，alkali-hydrolyzable nitrogen，quick-acting phosphorus and quick-acting potassium in the cultivated land of Motuo were 5.21，45. 94g/kg ， 200.97mg/kg ， 118.38mg/kg and 107.00mg/kg ，respectively，andallof themreached theveryrichlevel exceptforthe moderate levelof efectivepotassum nutrients.CultivatedlandinMotuosoddifenttysofpotassifertlfences，hchsoldbaeedforsupplemeio sive soil fertility analysis showed that 70% of the cultivated land soil fertility was in the middle to upper level，indicating that Motuo cultivated land had good fertility.

KeywordsMotuo，Xizang;Cropland;Soil fertility;Soil property

土壤是农业生产的基础[1-2]，土壤养分作为土壤肥力的核心和重要体现，其丰缺状况直接影响农作物的生长、产量及品质[3-4]，因此，研究土壤养分与质量评价对掌握和提高农田土壤质量、实现农作物优质高效生产和可持续发展具有重要意义，同时对土壤分区管理、指导农田合理施肥等也具有指导作用[5]

墨脱境内多为高山深切峡谷地貌，地形相对高差大，不同高度山地的水热条件存在差异，由此形成了与之适配的生物气候带、垂直带以及土壤垂直分布规律[6]。（剩余7953字）