甘肃农业大学学报
甘肅農業大學學報
감숙농업대학학보
JOURNAL OF GANSU AGRICULTURAL UNIVERSITY
2014年
4期
99-104
,共6页
稳定比%群落稳定性%人工封育%退耕还草%天然草场
穩定比%群落穩定性%人工封育%退耕還草%天然草場
은정비%군락은정성%인공봉육%퇴경환초%천연초장
stabilization ratio%community stability%artificial cultivating%return the farmland to grass-land%native pasture
以宁夏回族自治区盐池县植物为研究对象,利用法国生态学专家 Godron提出的方法经改进后,测定不同治理措施下植物群落稳定性.结果表明:测定的5个样地(人工封育核心区、边缘区、外围区、退耕还草区、天然草场区)的稳定比分别为37.82/62.18、36.46/63.54、35.75/64.25、39.35/60.65、41.39/58.61,表明盐池县人工封育区、退耕还草地以及天然草场的植物群落尚处于不稳定状态.盐池县人工封育与退耕还草措施均可以提高植物群落稳定性,并且人工封育措施更为有效,但是人工封育时间不可过长,以2~3a为宜,并且以2~3a为周期进行轮牧可以更好的促进草场恢复.
以寧夏迴族自治區鹽池縣植物為研究對象,利用法國生態學專傢 Godron提齣的方法經改進後,測定不同治理措施下植物群落穩定性.結果錶明:測定的5箇樣地(人工封育覈心區、邊緣區、外圍區、退耕還草區、天然草場區)的穩定比分彆為37.82/62.18、36.46/63.54、35.75/64.25、39.35/60.65、41.39/58.61,錶明鹽池縣人工封育區、退耕還草地以及天然草場的植物群落尚處于不穩定狀態.鹽池縣人工封育與退耕還草措施均可以提高植物群落穩定性,併且人工封育措施更為有效,但是人工封育時間不可過長,以2~3a為宜,併且以2~3a為週期進行輪牧可以更好的促進草場恢複.
이저하회족자치구염지현식물위연구대상,이용법국생태학전가 Godron제출적방법경개진후,측정불동치리조시하식물군락은정성.결과표명:측정적5개양지(인공봉육핵심구、변연구、외위구、퇴경환초구、천연초장구)적은정비분별위37.82/62.18、36.46/63.54、35.75/64.25、39.35/60.65、41.39/58.61,표명염지현인공봉육구、퇴경환초지이급천연초장적식물군락상처우불은정상태.염지현인공봉육여퇴경환초조시균가이제고식물군락은정성,병차인공봉육조시경위유효,단시인공봉육시간불가과장,이2~3a위의,병차이2~3a위주기진행륜목가이경호적촉진초장회복.
Taking the vegetation of Yanchi County of Ningxia as the study obj ect,and improved method which proposed by French ecologist Godron was used to measure the stability of the community under dif-ferent control measures.The results indicated that the stability ratio of five sample plots(artificial cultiva-ting core area,edge area,outside area,farmland to grass land,native pasture )were 37.82/62.18,36.46/63.54,35.75/64.25,39.35/60.65 and 41.39/58.61,respectively,which indicated that the vegetation of ar-tificial cultivating area,farmland to forest land and native pasture in Yanchi County were not stable.Both artificial cultivating and returning farmland to forest land measures could improve the stability of plant community,and the artificial cultivating measure was more effective,but this measure could not last too long,and the optimum time should be 2 to 3 years.And with 2~3 years as a cycle of rotational grazing could better promote the grassland restoration.