本文選題：平原水庫(kù) + 鹽荒地��； 參考：《干旱區(qū)研究》2017年05期

【摘要】：為揭示平原水庫(kù)周邊無灌溉鹽荒地及防風(fēng)林生長(zhǎng)區(qū)水鹽分布特征,在沙漠綠洲區(qū)多浪水庫(kù)南庫(kù)區(qū)周圍布設(shè)了地下水監(jiān)測(cè)井和土壤監(jiān)測(cè)點(diǎn),進(jìn)行了為期2 a的逐月地下水埋深監(jiān)測(cè)和土壤含水率及含鹽量的定點(diǎn)取樣測(cè)定試驗(yàn)。結(jié)果表明:庫(kù)區(qū)周邊鹽荒地地下水埋深隨監(jiān)測(cè)時(shí)段變化變幅不大,2 a內(nèi)均值為1.28 m;不同土壤含水率整體隨土層深度增加呈升高趨勢(shì),其中60~100 cm的土壤含水率較其他土層波動(dòng)較大。2 a間鹽荒地的土壤含鹽量在0.48~8.86 g·kg~(-1)之間變化,不同土壤總鹽含量隨土層深度增加呈減小的趨勢(shì),0~40 cm土層含鹽量變化較為明顯,具有顯著的鹽分表聚現(xiàn)象,其中,防風(fēng)林地土壤含鹽量在0~40 cm土層內(nèi)較天然生態(tài)林地明顯降低。
[Abstract]:In order to reveal the distribution characteristics of water and salt in no-irrigated wasteland and windbreak growing area around the plain reservoir, groundwater monitoring wells and soil monitoring points were set up around the south reservoir area of Dulang Reservoir in the desert oasis area. The monitoring of groundwater depth and the determination of soil moisture content and salt content were carried out for 2 years. The results showed that the groundwater depth of salt wasteland around the reservoir area changed little with the monitoring period, the mean value within 2 years was 1.28 m, and the whole soil moisture content increased with the increase of soil depth. The soil moisture content of 60 ~ 100 cm soil fluctuated more than that of other soil layers. The salt content in the saline wasteland varied from 0.48 to 8.86 g kg 路kg ~ (-1). The total salt content of different soils decreased with the increase of soil depth. The change of salt content in the soil layer of 40 cm was more obvious than that of the other soil layers, and the soil salt content in the saline wasteland varied from 0. 48 to 8. 86 g 路kg ~ (-1). The results showed that the salt concentration in the soil of windbreak forest was significantly lower than that of the natural ecological forest in the 0 ~ 40 cm soil layer.
【作者單位】： 塔里木大學(xué)水利與建筑工程學(xué)院;
【基金】：塔里木大學(xué)校長(zhǎng)基金碩士項(xiàng)目“沙漠綠洲區(qū)平原水庫(kù)周邊土壤水鹽動(dòng)態(tài)變化研究”(TDZKSSZD201404)資助
【分類號(hào)】：S156.4
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本文編號(hào)：1863629