甘肃农业大学学报
甘肅農業大學學報
감숙농업대학학보
JOURNAL OF GANSU AGRICULTURAL UNIVERSITY
2014年
3期
107-112
,共6页
余欣超%周华坤%姚步青%李以康%杨月娟%赵新全
餘訢超%週華坤%姚步青%李以康%楊月娟%趙新全
여흔초%주화곤%요보청%리이강%양월연%조신전
高原鼠兔%鼠洞%人工草地%天然草地%高度%盖度%生物量%裸地
高原鼠兔%鼠洞%人工草地%天然草地%高度%蓋度%生物量%裸地
고원서토%서동%인공초지%천연초지%고도%개도%생물량%라지
plateau pika%roothole%artificial grassland%natural grassland%height%cover-year-old%bio-mass%bare ground
通过对三江源区果洛州玛沁县矮嵩草草甸和垂穗披碱草人工草地内高原鼠兔洞周围植被群落的调查和取样,探究了高原鼠兔的活动对栖息地植物群落的影响。结果表明:高原鼠兔对未退化天然草地植物群落无明显危害,对其他草地的地下生物量也无明显影响;综合地上生物量、高度、盖度与裸地面积,高原鼠兔对2龄人工草地危害最明显,高原鼠兔洞周围的裸地面积由大到小为:2龄人工草地>天然矮嵩草草甸>10龄人工草地>12龄人工草地。
通過對三江源區果洛州瑪沁縣矮嵩草草甸和垂穗披堿草人工草地內高原鼠兔洞週圍植被群落的調查和取樣,探究瞭高原鼠兔的活動對棲息地植物群落的影響。結果錶明:高原鼠兔對未退化天然草地植物群落無明顯危害,對其他草地的地下生物量也無明顯影響;綜閤地上生物量、高度、蓋度與裸地麵積,高原鼠兔對2齡人工草地危害最明顯,高原鼠兔洞週圍的裸地麵積由大到小為:2齡人工草地>天然矮嵩草草甸>10齡人工草地>12齡人工草地。
통과대삼강원구과락주마심현왜숭초초전화수수피감초인공초지내고원서토동주위식피군락적조사화취양,탐구료고원서토적활동대서식지식물군락적영향。결과표명:고원서토대미퇴화천연초지식물군락무명현위해,대기타초지적지하생물량야무명현영향;종합지상생물량、고도、개도여라지면적,고원서토대2령인공초지위해최명현,고원서토동주위적라지면적유대도소위:2령인공초지>천연왜숭초초전>10령인공초지>12령인공초지。
Based on the vegetation investigation and sampling in the natural Kobresia humilis meadow and artificial grassland around plateau pika rathole in Maqin County of Guoluo Prefecture,this study pre-liminarily explored the distribution of the plateau pika and destruction impact on the habitat.The results showed that the activity of plateau pika had no obvious effect on below-ground biomass (P>0.05).The ac-tivity of plateau pika had no significant effect on the plant community height,cover-degree,aboveground and underground biomass of degraded natural grassland (P>0.05).Integrated the aboveground biomass, height,cover-degree and bare land area into consideration,the harm of the 2-age-old artificial grassland by plateau pika was the most serious.The relationship of the single block area of bare land around plateau pika ratholes was as:2-year-old artificial grassland > natural Kobresiahumilis meadow > 10-year-old artificial grassland > 1 2-year-old artificial grassland.