青海草业
青海草業
청해초업
QINGHAI PRATACULTURE
2012年
2期
44-46
,共3页
草地%退化%防治对策
草地%退化%防治對策
초지%퇴화%방치대책
Grassland%Degradation%Countermeasures
经调查,兴海县退化草地面积占可利用草地面积的22.31%。其中,严重退化草地面积为1.14×104hm2,中度退化草地8.8×104hm2,轻度退化草地10.97×104hm2;草地退化使草地产草量从1982年的2760kg/hm2下降到2002年的1575kg/hm2,下降了42%;掠夺式放牧、鼠虫害严重、毒杂草蔓延、“四滥”不禁及人口快速增长是导致草地退化的主要原因;建议采取依法治草,加强草地建设,科学合理利用草地,加强教育等措施保护草地。
經調查,興海縣退化草地麵積佔可利用草地麵積的22.31%。其中,嚴重退化草地麵積為1.14×104hm2,中度退化草地8.8×104hm2,輕度退化草地10.97×104hm2;草地退化使草地產草量從1982年的2760kg/hm2下降到2002年的1575kg/hm2,下降瞭42%;掠奪式放牧、鼠蟲害嚴重、毒雜草蔓延、“四濫”不禁及人口快速增長是導緻草地退化的主要原因;建議採取依法治草,加彊草地建設,科學閤理利用草地,加彊教育等措施保護草地。
경조사,흥해현퇴화초지면적점가이용초지면적적22.31%。기중,엄중퇴화초지면적위1.14×104hm2,중도퇴화초지8.8×104hm2,경도퇴화초지10.97×104hm2;초지퇴화사초지산초량종1982년적2760kg/hm2하강도2002년적1575kg/hm2,하강료42%;략탈식방목、서충해엄중、독잡초만연、“사람”불금급인구쾌속증장시도치초지퇴화적주요원인;건의채취의법치초,가강초지건설,과학합리이용초지,가강교육등조시보호초지。
From investigation, degraded grassland was 22.31 percent point. Severe degraded grassland area was 1.14 - 104 hm2, moderate degraded grassland area was 8.8 × 104hm2, mild degraded grassland area was 10.97 × 104hm2. The yield reduced from 2760 kg/hm2 to 1575 kg/hm2 from 1982 to 2002 ,it was reduced 42 percent point. It was the main reasons of degraded grassland for over - stocking, rodents and pests, weeds, population pressure. Some suggestions of protected grassland are pointed out.