本文關(guān)鍵詞：西部風(fēng)沙區(qū)不同采煤沉陷區(qū)位土壤水分中子儀監(jiān)測　出處：《農(nóng)業(yè)工程學(xué)報》2016年15期 　論文類型：期刊論文

  更多相關(guān)文章： 土壤含水量 監(jiān)測 采煤 沉陷地 風(fēng)沙區(qū) 中子儀 分區(qū)治理

【摘要】：為探究西部風(fēng)沙區(qū)采煤沉陷對土壤水分的影響,選取大柳塔某工作面為研究對象,采用中子儀法,對沉陷盆地的盆底區(qū)、邊緣區(qū)和未受開采影響的未開采區(qū)2 m以內(nèi)土壤含水量進(jìn)行為期2 a的定位動態(tài)監(jiān)測(包括采前—采中—采后0.5 a—采后1 a—采后1.5 a—采后2 a)。研究表明:1)研究區(qū)2 m內(nèi)土壤含水量具有明顯的分層特征,在10~60 cm內(nèi)含水量呈線性增加,60~200 cm內(nèi)基本穩(wěn)定;2)采煤沉陷對土壤水分的影響具有明顯的分區(qū)分層特征,使盆底區(qū)土壤含水量在10~130 cm內(nèi)減小,130~200 cm內(nèi)含水量增加,使邊緣區(qū)含水量在2 m內(nèi)均減小;整體而言,對邊緣區(qū)的影響大于盆底區(qū);3)采后盆底區(qū)土壤含水量呈現(xiàn)自我恢復(fù)現(xiàn)象,采后1 a土壤含水量便可恢復(fù)到采前水平,采后1.5 a和2 a,表現(xiàn)出高于未開采區(qū)的特點(diǎn);邊緣區(qū)含水量自我恢復(fù)效果不明顯,采后2 a 10~130 cm土層內(nèi)仍沒達(dá)到未開采區(qū)的水平。因此,在對西部風(fēng)沙區(qū)采煤沉陷地進(jìn)行土地復(fù)墾和生態(tài)修復(fù)時,要分區(qū)治理,盆底區(qū)要充分依靠土壤水分的自我恢復(fù)能力,對邊緣區(qū)要施以人工修復(fù)措施,使含水量及時恢復(fù),滿足植物生長的需要;這樣盡量依靠自然的力量,有針對性、有重點(diǎn)的治理,既可以減小人工修復(fù)帶來二次擾動的可能性,又可以減少生態(tài)修復(fù)成本。
[Abstract]:In order to explore the mining subsidence area in west wind effect on soil moisture, selection of Daliuta a working face as the research object, using neutron probe method, the subsidence basin, basin area edge area and is not affected by mining of the mining area not less than 2 m soil moisture for a period of 2 a positioning dynamic monitoring (including before mining mining in mining after 0.5 A - 1 A - postharvest postharvest 1.5 A - 2 a) after harvest. Research shows that: 1) the study area within 2 m soil moisture with hierarchical characteristics, in the 10~60 cm water content increased linearly, the basic stability of 60~200 cm; 2) has obvious characteristics of subarea effect on soil water of mining subsidence, the basin area decreased soil water content at 10 ~130 cm, increased 130~200 cm water content, water content decreased to the edge area within 2 m; the overall effect on the edge area is greater than the pelvic floor area; 3) postharvest pelvic area soil moisture showed a self recovery phenomenon, postharvest 1 a soil moisture content can be restored to the level before harvest, postharvest A and 1.5 2 A, showing higher than non mining areas; fringe water self recovery effect is not obvious, after collecting 2 a 10~130 cm soil layer has not reached the level of non mining areas. Therefore, in the coal mining subsidence in Western Sandy Area of land reclamation and ecological restoration, to partition management, basin area should fully rely on soil moisture self recovery capability, on the fringe to impose artificial restoration measures, the water content of timely recovery, meet the needs of plant growth; so try to rely on the power of nature, there are in view of governance, with emphasis, can reduce the possibility of two repair artificial disturbance, and can reduce the cost of ecological restoration.
【作者單位】： 中國礦業(yè)大學(xué)(北京)土地復(fù)墾與生態(tài)重建研究所;
【基金】：國家自然科學(xué)基金委員會-神華集團(tuán)有限責(zé)任公司煤炭聯(lián)合基金重點(diǎn)支持項(xiàng)目(U1361203)
【分類號】：S152.7;TD88
【正文快照】： 臺曉麗,胡振琪,陳超.西部風(fēng)沙區(qū)不同采煤沉陷區(qū)位土壤水分中子儀監(jiān)測[J].農(nóng)業(yè)工程學(xué)報,2016,32(15):225-231.doi:10.11975/j.issn.1002-6819.2016.15.031 http://www.tcsae.orgTai Xiaoli,Hu Zhenqi,Chen Chao.Monitoring soil moisture at different subsidence areas of min

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