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当前位置: 首页 > 文章 > 基于土壤种子库的沙荒地植被恢复研究 河北林果研究 2014 (4) 333-340
Position: Home > Articles > On the efficiency analysis of wasteland soil vegetation recovery based on the Soil Seed Bank Hebei Journal of Forestry and Orchard Research 2014 (4) 333-340

基于土壤种子库的沙荒地植被恢复研究

作  者：
陈颖;郭耸松;刘海翔;李玉灵;李继泉
单  位：
北京东方园林公司;河北农业大学林学院
关键词：
土壤种子库;客土;沙荒地;植被自然恢复
摘  要：
通过借用退化沙荒地附近种源地土壤种子库的客土方式,分析客土+保水剂、客土2种不同措施对退化沙荒地土壤改良和植被恢复的作用,为沙荒地植被自然恢复与重建技术提供理论依据。结果表明:1种子库物种以多年生草本植物为主,且双子叶植物居多,未发现乔灌木植物种子,种子密度是种源地(1 524.64粒/m2)>沙荒地(843.76粒/m2)。2土壤有机质、全氮、全磷、全钾、碱解氮、速效磷、速效钾含量在0~10cm土层内表现为:客土+保水剂>客土>沙荒地,在10~20cm和20~40cm土层内3种处理样地无明显差异。3客土和客土+保水剂处理地,其地上和地下生物量均远高于沙荒地,客土地的生物量(937.80g/m2)是沙荒地生物量(287.11g/m2)的3.27倍。但根冠比是沙荒地(1.85)>客土(1.69)>客土+保水剂(1.04),说明土壤干旱在某种程度上利于植物根系的发育。4不同改良措施下草本Margalef指数和Shannon-wiener指数,客土+保水剂>客土>沙荒地;Pielou指数和Simpson指数是客土地与客土+保水剂处理地之间相差不大,但都明显高于沙荒地。
译  名：
On the efficiency analysis of wasteland soil vegetation recovery based on the Soil Seed Bank
作  者：
CHEN Ying;GUO Songsong;LIU Haixiang;LI Yuling;LI Jiquan;College of Foresty,Agricultural University of Hebei;Langfang Water Supplies Bureau;Beijing Orient Landscape Co.;
关键词：
Soil Seed Bank;;new soil;;sandy wasteland;;vegetation spontaneous recovery
摘  要：
The Soil Seed Bank of adjacent provenance to the degraded wasteland was used to analyses the efficiency of 2different treatments by new soil+ SAP and new soil on the soil amelioration and vegetation restoration of the degraded sandy wasteland,so as to provide theoretical basis for vegetation restoration and reconstruction technology.The results showed:1 Seed bank species were composed of the dominative perennial herbaceous plants,with a majority of dicotyledons,but without trees and shrubs seeds found.The seed density was 1 524.64seed/m2 in the provenance higher than 843.76seed/m2 in the sandy wasteland.2 The content of soil organic matter,Total N,Total P,Total K,alkali-hydrolyzable N,available P,and available K in the 0~10cm soil layer indicated new soil+ SAP>new soil>sandy wasteland(CK),while in 10~20cm and 20~40cm soil layers,there was no significant difference in the three plots.3The ground and underground biomass treated by both new soil and new soil+ SAP proved to be far higher than that of the sandy wasteland,with new soil biomass of 937.80g/m2,which was 3.27 times as high as the sandy wasteland biomass of 287.11g/m2.But the shoot ratio of the 3plots was 1.85 of sandy wasteland>1.69 of new soil> 1.04 of new soil+ SAP,which explains droughty soil promoted the root growth.4 The species diversity of herbaceous plants in different treatments showed Margalef richness index and Simpson diversity index were both new soil+ SAP> new soil>sandy wasteland.There was no difference in Pielou evenness index and Shannon-Wiener diversity index between the treatments of new soil and new soil+ SAP,but they were still higher than that of sandy wasteland.

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