咸水滴灌对沙漠公路防护林土壤环境的影响  

Effect of drip-irrigation with salinity water on soil environment of the Trim Desert highway shelterbelt

作　　者：张建国[1,2] 徐新文[1] 雷加强[1] 靳正忠[1,2] 李生宇[1] 谷峰[3] 邱永志[3] 许波[3] 刘尚[3] 杜文意[3] 闫增辉[3] 王永昌[4] 

机构地区：[1]中国科学院新疆生态与地理研究所,乌鲁木齐830011 [2]中国科学院研究生院,北京100039 [3]中国石油天然气股份有限公司塔里木油田分公司,库尔勒841000 [4]中国石油天然气股份有限公司吐哈油田分公司,库尔勒839009

出　　处：《农业工程学报》2008年第10期34-39,共6页Transactions of the Chinese Society of Agricultural Engineering

基　　金：中国科学院重要方向项目(kzcx3-sw-342);国家自然科学基金项目(40701098,40701019);新疆维吾尔自治区重大科技专项(200733144-3);中国科学院西部行动计划项目(KZCX2-XB2-1-3);中国科学院“西部之光”人才培养计划项目(20052118);中国科学院新疆生态与地理研究所绿洲学者“博士人才”计划项目

摘　　要：为了研究高矿化度水滴灌对极端干旱区防护林土壤环境的影响,为塔里木沙漠公路防护林生态工程的可持续利用和维护管理提供理论依据。该文以塔克拉玛干沙漠腹地4.0～4.8 g/L的高矿化度地下水滴灌下的防护林为例,分析了咸水滴灌前后0～30 cm各层风沙土全N、全P、有机质、全盐、离子组成和微生物的变化。结果表明:高矿化度咸水滴灌下塔里木沙漠公路防护林的土壤环境逐渐得到改善。防护林0～5 cm、5～15 cm和1～30 cm 3个层次的含水量、全N、全P、全K、全盐含量、离子组成和微生物数量与流沙地存在很大差异,且与灌溉年限有直接关系;其中0～5 cm层次变化最为明显,5～15 cm次之,15～30 cm变化最小。To study the effect of drip-irrigation with high salinity groundwater on aeolian sandy soil environment of shelterbelt in the hinterland of the Taklimakan Desert, and supply theoretical basis for the sustainable use and management of the Tarim Desert highway shelterbelt eco-project. The shelterbelt drip-irrigated with salinity groundwater of 4.0-4.8 g/L in the hinterland of the Taklimakan Desert was taken as an example. Changes of, total nitrogen, total phosphorus, organic matter, total salt content, ions composition, and microorganism of the 0-30 cm soil layers were analyazed, The results showed that the soil environment of the Tarim Desert highway shelterbelt became better under drip-irrigation with high salinity groundwater. Water content, total nitrogen, total phosphorus, organic matter, total salt content, ions composition, and microorganisms of the 0-5 cm, 5-15 cm and 15-30 cm aeolian sandy soil layers in shelterbelt were greatly different from drifting sandy land, and were related with irrigation years. These characteristics of 0-5 cm layer changed most obviously, then 5-15 cm layer, and the 15-30 crn layer changed directly least.

关 键 词：高矿化度咸水 滴灌 沙漠腹地 防护林 土壤环境 

分 类 号：S152.4[农业科学—土壤学] S153[农业科学—农业基础科学]