CAJ | 학술논문

采用人工践踏法对人工建植4年后的沟叶结缕草草坪进行不践踏（对照）、轻度、中度和重度4种践踏胁迫处理，研究了不同践踏胁迫下的部分坪用性状及其自然恢复能力，为沟叶结缕草草坪的建植、管理和养护提供理论依据与实践参考。结果表明，不同践踏胁迫将显著降低沟叶结缕草草坪的坪用性状，不同性状间的效应为草层高度＞盖度＞密度＞地上部生物量＞倒3叶长。不同践踏胁迫对各坪用性状的影响存在显著差异，适度践踏可控制草层高度，降低生物量，增加草坪密度。经过53 d的自然恢复，被践踏草坪能获得一定程度的恢复，但恢复的优劣与坪用性状和践踏强度相关。恢复后的草坪密度高于践踏前的水平，恢复效果为中度＞轻度＞重度，但均极显著小于对照；草层高度和盖度能恢复到践踏前的水平，以中度践踏后恢复最好；倒3叶长可恢复到践踏前的86．8％～93．5％，且极显著高于对照。中度践踏的地上部生物量能恢复至践踏前的90．2％，轻度和重度践踏后可恢复至践踏前的115．0％以上，但均极显著低于对照。因此，轻度践踏对草坪的伤害较小并可较快自然恢复至原状，中度践踏对草坪产生短时的较重伤害但能较慢地恢复至原状，而重度践踏对草坪的伤害较大和影响较长则难以自然恢复至原状。
채용인공천답법대인공건식4년후적구협결루초초평진행불천답（대조）、경도、중도화중도4충천답협박처리，연구료불동천답협박하적부분평용성상급기자연회복능력，위구협결루초초평적건식、관리화양호제공이론의거여실천삼고。결과표명，불동천답협박장현저강저구협결루초초평적평용성상，불동성상간적효응위초층고도＞개도＞밀도＞지상부생물량＞도3협장。불동천답협박대각평용성상적영향존재현저차이，괄도천답가공제초층고도，강저생물량，증가초평밀도。경과53 d적자연회복，피천답초평능획득일정정도적회복，단회복적우렬여평용성상화천답강도상관。회복후적초평밀도고우천답전적수평，회복효과위중도＞경도＞중도，단균겁현저소우대조；초층고도화개도능회복도천답전적수평，이중도천답후회복최호；도3협장가회복도천답전적86．8％～93．5％，차겁현저고우대조。중도천답적지상부생물량능회복지천답전적90．2％，경도화중도천답후가회복지천답전적115．0％이상，단균겁현저저우대조。인차，경도천답대초평적상해교소병가교쾌자연회복지원상，중도천답대초평산생단시적교중상해단능교만지회복지원상，이중도천답대초평적상해교대화영향교장칙난이자연회복지원상。
Zoysia matrella possesses the characteristics of developed aboveground stolon and underground rhi-zomes,long and thin leaves,long green periods,intensive grass sward,strong reproduction and resistance, and low maintenance costs so it is the most important warm season turfgrass in the south of China and the first option for planting sports and urban open turf.From previous literature,the research on Z.matrella was more focused on the morphological and anatomical structures,drought,cold,saline and alkaline resistances, but there were few studies on trampling tolerance and natural recovery after trampling was seriously neglected. To provide some theoretical basis and practical references for the planting,management and maintenance of Z. metrella turf,the effects of various trampling stresses,including none (control),light,moderate and heavy trampling on the characteristics of Z.metrella turf established for 4 years and their natural recovery were stud-ied using artificial trampling.All trampling stresses significantly reduced turf characteristics in the order of turf height>turf coverage>turf density>aboveground biomass>length of the top third leaf.The effects of various trampling stresses on the turf characteristics were obviously different and moderate trampling could control turf height,decrease turf biomass and increase turf density.After 5 3 days of natural recovery,the trampled turfs gained some recovery,but the consequence of recovery was related to the turf characteristics and trampling in-tensity.Turf height after recovery was higher than that before trampling in the order of moderate trampling>light trampling>heavy trampling and was extremely significantly lower than that of the control.Turf height and coverage could recover to the original level before trampling and was best with moderate trampling.The length of the top third leaf could recover to 86.8%-93.5% of the original level and was extremely significantly higher than that of the control.The aboveground biomass under moderate trampling recovered to 90.2% of the original level,while the aboveground biomass under moderate and heavy trampling recovered to above 1 1 5 .0%of the original levels,but they were extremely significantly lower than that of the control.Therefore,the dam-age of turf under light trampling was small and recovery to the original level was rapid.The short-time damage of turf under moderate trampling was serious and recovery to the original level was slow.Under heavy tramp-ling,the long-time damage to turf was very serious and recovery to the original level was difficult.