防护林科技
防護林科技
방호림과기
Protection Forest Science and Technology
2015年
10期
66-67
,共2页
老化蚕场%径流量%泥沙携带量%植被%物种%生物量
老化蠶場%徑流量%泥沙攜帶量%植被%物種%生物量
노화잠장%경류량%니사휴대량%식피%물충%생물량
aging silkworm farm%runoff%flow carrying sediments%species%biomass
老化蚕场已经严重威胁到生态环境的良性循环,蚕场连作对土壤和植被破坏严重,导致地力下降,土壤沙化。试验表明,长期的超载放蚕,使枯落物还原量减少,林地养分降低,草灌植物因不适应这一环境而退出场地,生物量下降约10%。老化蚕场水土流失严重,2年的观测结果显示,径流量和泥沙携带量都远远超过退蚕区。
老化蠶場已經嚴重威脅到生態環境的良性循環,蠶場連作對土壤和植被破壞嚴重,導緻地力下降,土壤沙化。試驗錶明,長期的超載放蠶,使枯落物還原量減少,林地養分降低,草灌植物因不適應這一環境而退齣場地,生物量下降約10%。老化蠶場水土流失嚴重,2年的觀測結果顯示,徑流量和泥沙攜帶量都遠遠超過退蠶區。
노화잠장이경엄중위협도생태배경적량성순배,잠장련작대토양화식피파배엄중,도치지력하강,토양사화。시험표명,장기적초재방잠,사고락물환원량감소,임지양분강저,초관식물인불괄응저일배경이퇴출장지,생물량하강약10%。노화잠장수토류실엄중,2년적관측결과현시,경류량화니사휴대량도원원초과퇴잠구。
Aging silkworm farm has been a serious threat to the virtuous cycle of ecological environment,silkworm field even against severe damage to soil and vegetation,leading to fertility decline,soil desertification.Tests showed that the long-term overload release silkworms,reduce the amount of litter reduction,reduce nutrient woodland, grass and shrub plants are suited to this environment and to exit the venue,biomass decline,down about 10%.Soil erosion in aging silkworm farm is serious;the result of two years’observation shows that runoff and sediment car-rying capacity far exceeds retreat silkworm area.
