疏伐和施肥对红花荷生态景观林土壤生化性质的影响  

Effects of Thinning and Fertilizing on Soil Biochemical Properties in A Rhodoleia championii Ecological Landscape Forest

作　　者：苏木荣 邹晓君 何海生 杨徽 王宁 谭莎 王敏 薛立 SU Murong;ZOU Xiaojun;HE Haisheng;YANG Hui;WANG Ning;TAN Sha;WANG Min;XUE Li(Maintenance Center of Yunyong Ecological Forest,Foshan,Guangdong 528518,China;College of Forestry and Landscape Architecture,South China Agricultural University,Guangzhou,Guangdong510642,China)

机构地区：[1]佛山市云勇生态林养护中心,广东佛山528518 [2]华南农业大学林学与风景园林学院,广东广州510642

出　　处：《林业与环境科学》2020年第6期58-62,共5页Forestry and Environmental Science

基　　金：中央财政林业科技推广示范项目(2015-GDTK-07),佛山市科学技术局项目(2017AB004124)。

摘　　要：疏伐和施肥是提高土壤肥力最有效的措施,被广泛用于中国的人工林。为了研究疏伐和施肥对红花荷Rhodoleia championii生态景观林土壤肥力的效果,在红花荷生态景观林建立对照(CK)、疏伐+施肥和疏伐3个样地,研究疏伐+施肥和疏伐措施对土壤生化性质的影响。结果表明,红花荷林土壤各处理间的有效磷、全钾和速效钾、脲酶、酸性磷酸酶和过氧化氢酶存在显著差异,施肥+疏伐显著提高了土壤的磷含量,疏伐显著提高了土壤全钾含量。由于施肥改善了土壤肥力,使土壤微生物和植物根系减少了酶的分泌量,因此疏伐+施肥处理的土壤酶活性下降。总体来看,疏伐施肥显著提高了土壤的磷含量,而疏伐显著提高了土壤全钾含量。Thinning and fertilizing are the most effective tending measurements in improving soil fertility of plantations,which are widely used in plantations in China.In order to examine the effects of thinning and fertilizing measures on soil fertility in Foshan city,southern China,three plots treated with control(CK),thinning+fertilizing and thinning were established in a Rhodoleia championii ecological landscape forest,respectively.The effects of thinning and thinning+fertilizing on soil fertility were compared with control(CK).Result showed that there were significantly differences in the soil available phosphorus,total potassium,avaiable potassium,urease,acid phosphoric enzyme and catalase activities among the three plots,suggesting that the soil phosphorus content and total potassium content of the R.championii plantation was significantly improved by thinning+fertilizing and thinning measures,respectively.Fertilizing improved the soil fertility,which decreased the secretory quantity of soil enzyme of microorganisms and plant roots,resulting in a decrease of enzyme activity.

关 键 词：红花荷 施肥疏伐 土壤养分 土壤酶 

分 类 号：S153.6[农业科学—土壤学]